JPH07151100A - Delivering method of liquid from reservoir and liquid pump - Google Patents

Abstract

PURPOSE: To provide a novel liquid sending-out method and a pump, wherein low-cost mass production is carried out, and only the small number of component items is needed. CONSTITUTION: A one-way valve 10 is attached to the lower end of a tube 8. The one-way valve 10 permits the flowing of liquid 4 from a reservoir 2 into the tube 8, but inhibits its flowing in a reverse direction. One end of the tube 8 provided with the one-way tube 10 is dipped in the liquid 4 in the reservoir 2. An electric driving device 20 reciprocates the tube 8 and the one-way valve 10 of its lower end in parallel with an axis cyclically. Thus, the liquid 4 enters the one-way valve 10 and is sent through the tubes 8 and 6.

Description

Detailed Description of the Invention

[0001]

This invention relates to a method of delivering a liquid,
And a pump operating by such a method. INDUSTRIAL APPLICABILITY The present invention is particularly useful as a low-cost low-flow pump that delivers water from a lower position to an upper position, for supplying water to, for example, potted flowers.

[0002]

2. Description of the Related Art A pump for delivering a liquid, particularly a pump used for delivering water from a lower position to an upper position for supplying water to flowers in a potted plant has conventionally been a rotary member or a piston in a flow path. In many cases, the complicated structure in which the members are provided is expensive.

[0003]

SUMMARY OF THE INVENTION The main object of the present invention is to provide a novel liquid delivery method and a pump which requires only a few simple parts and which can be manufactured in large quantity and at low cost, therefore potted plants. It is an object of the present invention to provide a novel pump which is particularly suitable for use in supplying water to the flowers and the like.

[0004]

According to one aspect of the invention, a method of delivering a liquid is permitted to allow the liquid to flow from the reservoir into the tube, but not in the opposite direction. Immersing one end of a tube with a one-way valve in a reservoir of liquid to be delivered, and periodically reciprocating the immersed end of the tube by an electric drive parallel to the axis of the immersion end. And a method comprising:

According to another feature of the invention, a pump for delivering liquid from a pump is provided which has a tube having one end submersible in the liquid in the reservoir and a liquid retained in the reservoir by the submersible one end of the tube. One-way valve that allows flow from the tube into the pipe but not in the opposite direction, and an electrical drive that periodically reciprocates the submersible end of the pipe parallel to its longitudinal axis. And a pump.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The pump shown in FIG. 1 is used, for example, for supplying water to potted flowers and the like. Therefore, a reservoir 2 for holding water 4 to be fed to a high place through a flexible hose 6 is used.
Is equipped with. The pump comprises a rigid tube 8. The rigid tube 8 is connected to the lower end of the flexible hose 6 and constitutes a connecting portion together with the lower end. The lower end of the rigid tube 8 holds a one-way valve 10 immersed in the water 4 in the reservoir 2. The one-way valve 10 includes a valve member 12, as schematically shown in FIG. The valve member 12 is typically a spring 1.
It is biased by 4 to close the inlet 16 and allow water to flow from the reservoir 2 into the rigid tube 8 but not from the rigid tube 8 to the reservoir.

The illustrated construction of the one-way valve 10 is shown in schematic form only as an example, allowing water to flow from the reservoir 2 into the rigid tube 8 but in the opposite direction. Other one-way valve constructions that are not allowed may also be employed as the valve in the present invention.

The pump shown in FIG. 1 reciprocates the rigid tube 8 in parallel with the longitudinal axis of one end of the rigid tube 8 immersed in water 4 and is electrically driven generally by the numeral 20. The device is further provided. An electric drive 20, shown as an electric motor drive in FIG. 1, comprises an electromagnet 22 mounted in a fixed position with respect to the reservoir 2 and a rigid tube 8.
An armature in the form of a magnetic sleeve 24 fixed to the upper end of the. The electromagnet 22 has a household power source (50 / 60H) as indicated by reference numeral 26.
The alternating current is supplied from z), and the sleeve 24 and the rigid tube 8 fixed thereto are reciprocated at the frequency of the power source.

The rigid tube 8 is supported by a pair of diaphragms 30 and 32 fixed to the rigid tube 8 at positions separated from each other in the longitudinal direction, and is reciprocally mounted.
In this case, the two diaphragms 30, 32 are on either side of the magnetic sleeve 24, which allows the magnetic sleeve 24 to
Will close both ends of the electromagnet 22 that encloses.

The operation of the pump shown in FIG. 1 will be apparent from the above description. In this way, the magnetic sleeve 24
Are reciprocated by the AC voltage supplied to the electromagnet 22, thereby reciprocating the rigid tube 8 holding the magnetic sleeve 24. The water is held at the lower end of the rigid tube 8
The one-way valve 10 immersed therein is also reciprocated so that when the rigid tube 8 and the one-way valve 10 move downwards, water flows from the reservoir 4 into the rigid tube 8 while the one-way valve 10 moves upwards. Spring 14 is moved by valve member 12 into opening 16
, Which prevents water from flowing back from the rigid tube 8 into the reservoir 4. At the end of the upward stroke of the rigid pipe 8, when the upward stroke motion is suddenly stopped, an upward moment causes water to pass through the upper end of the rigid pipe 8 and flow further upward, and the water column Create a low pressure at the bottom. This opens the one-way valve 10,
The inflow of water into the rigid tube 8 is started. Such inflow of water continues during the downward stroke of the rigid tube 8.

It has been found that the structure shown in FIG. 1 can deliver water up to a vertical height of 4 meters.

In FIG. 2, a reservoir 102 holding water for water supply 104 and a flexible pipe 106 are attached to the lower end,
Another pump structure is shown, including a rigid tube 108 holding a one-way valve 110 immersed in water 104. The electric drive device 120 that reciprocates the rigid tube 108 is
It comprises an electromagnet 122 fixed with respect to the reservoir 102 and a movable armature 124 in the form of a magnetic sleeve fixed to the rigid tube 108.

However, in the pump shown in FIG. 2, one end of the elastic means for supporting the rigid pipe 108 is the fixing surface 134.
And the other end is in the form of a leaf spring 130 that attaches the magnetic sleeve 124 in a cantilevered manner. Electromagnet 1
22 is positioned with respect to the magnetic sleeve 124, so that when the electromagnet 122 is excited by the AC power supply 126, the leaf spring 130 and the magnetic sleeve 124 attached thereto vibrate. As a result, the magnetic sleeve 124 reciprocates, which causes the one-way valve 11 provided at the lower end of the rigid tube 108 and immersed in the water 104.
0 is reciprocated to deliver water from reservoir 102 into rigid tube 108 and from there into flexible tube 106 in the manner described above with respect to FIG.

One further modification shown in the structure of FIG. 2 is:
In order to reduce the reciprocating cycle of the rigid tube 108, a frequency dividing circuit (fr) is provided between the power source 126 and the electromagnet 122.
quency divider circuit) 14
0 is provided. In order for the one-way valve 110 to reciprocate at the frequency of the power supply (eg, 50/60 Hz), it must have a relatively small one-way valve and a relatively small reciprocating amplitude. However, if the frequency of the power supply is reduced by the frequency dividing circuit 140 (for example, 12.5).
Hz or up to 6.25 Hz), greater amplitude reciprocation is possible, and more robust valves can be used.

It is also possible to use a frequency division circuit as shown by reference numeral 140 in FIG. 2 in the structure shown in FIG.

FIG. 3 shows a pump structure in which the cycle of reciprocating motion is shortened by mechanical means instead of the electronic frequency dividing means as in FIG. The pump shown in FIG. 3 has a reservoir 202 that holds water 204 to be delivered.
And a one-way valve 210 immersed in the water 204 of the reservoir.
And a flexible tube 206 whose lower end is fixed to the rigid tube 208. In this case, the electric drive device 220 comprises an electromagnet 222 and a magnetic armature 224 laterally spaced from the rigid tube 208. The rigid tube 208 is attached to the armature 224 by a coil spring 230. Coil spring 230
Has one end attached to the armature 224 and the other end attached to the projecting piece 232 held by the rigid tube 208. Further, the rigid tube 2 fixed to the lower end of the flexible tube 206
A second spring 234 is interposed between the bottom of the one-way valve 210 and the reservoir 202 to elastically support the one-way valve 210 together with the 08.

The spring 230 is a flexible spring, while the second spring 234 is a relatively stiff spring. When the electromagnet 222 is excited by an AC power supply (for example, 50 Hz), a natural frequency that is a subharmonic of the drive frequency of 50 Hz, for example, 12.5 or 6.
In order to obtain a spring characteristic that can generate 25 Hz,
The second spring 234 is selected. Reducing the frequency at which the rigid tube 208 and its one-way valve 210 reciprocate, as described in the embodiment of FIG. 2, allows for greater amplitude of reciprocation.

FIG. 4 illustrates yet another pump structure comprising a rigid tube 308 connected to the lower end of a flexible tube 306 and immersed in water 304 held in a reservoir 302. The immersed lower end of 308 is a one-way valve 31.
It has 0. However, the electric drive 320 is a slightly different variant than that described above.

Electrical drive 320 in the pump of FIG.
Is a magnetic armature 324 fixed to the upper end of the rigid tube 308.
The two electromagnets 32 that are arranged to face each other with respect to
1, 322. In this case, the magnetic armature 324
Has a disk-shaped portion and has two electromagnets 321 and 3
Alternating half of the AC power supply is alternately supplied to each of the coils 22, and the magnetic armature 324 and thus the rigid tube 308 vibrate or reciprocate at the AC frequency of the half cycle.

FIG. 5 shows a structure similar to that of FIG. 4, but the electric drive device 420 for vibrating or reciprocating the rigid tube 408 is a magnetic armature fixed to the rigid tube 408. One electromagnet 4 provided on one side of 424
22 and a pair of springs 431 and 432 provided on both sides of the magnetic armature 424. All of the above components are housed within a housing 433.

In the configuration of FIG. 5, when the electromagnet 422 is excited by alternating current or pulse direct current, the two springs 431, 4 are
The magnetic armature 424, which floats between 32, is rigid tube 408.
It is reciprocated in a direction parallel to the axis of the.

FIG. 6 illustrates yet another structure similar to that of FIG. 1, except that the rigid tube 508 reciprocated by the electrical drive 520 is vertically suspended in the water 504 of the reservoir 502. The difference is that they are arranged horizontally.
In addition, on each side of the rigid tube 508, there are one-way valves 510, 511 respectively, which allow water to flow from the reservoir to each end of the rigid tube. However, flow in the opposite direction is not allowed.
When the two electromagnets 521, 522 of the electric drive 520 are excited, these electromagnets 521, 522 cause the magnetic armature 524 to be parallel to the longitudinal axis of the rigid tube 508 (ie, in this case horizontal). Reciprocate (along the axis). This allows water to flow through the two one-way valves 510,
Alternating from both ends of rigid tube 508 via 511, thereby delivering water through flexible tube section 506.

In FIG. 7, yet another structure is shown in which the electrical drive 620 and the rigid tube 608 are mounted on a spring 640 and vibrate at resonance at the frequency of the electrical drive 620. Form an assembly. The spring 640 is
It is conical in shape, with its diameter decreasing from its bottom seating in reservoir 602 to its top supporting housing 620. One such spring 640 is provided at each of the four corners of the housing 621.

The electric drive 620 has its south pole (S).
And a rigid housing 621 that houses an electromagnet 622 with the north pole (N) aligned vertically. An opening 621a is formed at the lower end of the housing 621, and the lower end of the rigid tube 608 received in the opening 621 is immersed in the water 604 of the reservoir 602.
As in the example above, the lower end of the rigid tube 608 is
A one-way valve 610 that allows water to flow from the reservoir into the rigid tube 608, but not in the opposite direction.
Holding The upper end of the rigid tube 608 has an electromagnet 622.
Magnetic armature 6 reciprocating in the vertical direction by excitation of
Holds 24. The magnetic armature 624 is the armature 6
24 together with the rigid tube 608 to which it is fixed is cantilevered by a U-shaped leaf spring 630.
0 has a pair of parallel end legs 631, 632 fixed to the housing 621 and an intermediate cross leg 633 fixed to the magnetic armature 624.

When the electromagnet 622 is excited, the magnetic armature 624 oscillates or reciprocates vertically, causing water to flow from the rigid tube 608 to the flexible tube 606 via the one-way valve 610. . The U-shaped spring 630 supporting the magnetic armature 624 and the rigid tube 608 is
08 is reciprocated in the vertical direction.

Thus, the U-shaped leaf spring 630, the rigid tube 608, the one-way valve 610, the magnetic armature 624, the electromagnet 622, the housing 620, the flexible tube 606, the rigid tube 608, and the flexible tube 606. A vibrating assembly is formed that comprises the water column within. With a suitable design, this vibrating assembly allows the frequency of the current (eg,
It can be adjusted to self-resonate at 50 or 60 Hz). Thus, when the electromagnet is excited at the self-resonant frequency of the vibration assembly described above, the housing 62
4 resonates on the spring 640 and generates a strong pumping force that delivers water through the rigid tube 608 and the flexible tube 606.

FIG. 8 shows an application example of the above-mentioned pump.
That is, an application example in which water is supplied to potted flowers and the like is shown.
As shown in FIG. 8, for a potted plant, generally designated 700, a rigid tube 70 having a lower end holding a one-way valve 710 immersed in water 704 in a reservoir 702.
When water is supplied via the flexible tube 706 by a pump with eight, the rigid tube 708 is reciprocated parallel to its longitudinal axis by any of the structures described above.

[0028]

INDUSTRIAL APPLICABILITY The pump constructed according to the present invention can be mass-produced at low cost, and is therefore particularly useful as a low-cost, low-flow rate pump for supplying potted flowers and the like.

[Brief description of drawings]

FIG. 1 is a schematic view showing one structure of a pump according to the present invention.

FIG. 2 is a schematic view showing another structure of the pump according to the present invention.

FIG. 3 is a schematic view showing still another structure of the pump according to the present invention.

FIG. 4 is a schematic view showing still another structure of the pump according to the present invention.

FIG. 5 is a schematic view showing still another structure of the pump according to the present invention.

FIG. 6 is a schematic view showing still another structure of the pump according to the present invention.

FIG. 7 is a schematic view showing still another structure of the pump according to the present invention.

FIG. 8 is a diagram showing one application example of the present invention used for supplying water to potted flowers and the like.

[Explanation of symbols]

2 reservoir, 4 water, 6 flexible hose, 8 rigid tube, 10 one-way valve, 12 valve member, 14 spring, 16
Inlet, 20 electric drive, 22 electromagnet, 24 magnetic armature, 26 power supply, 30; 32 diaphragm.

Claims (10)

[Claims] 1. A method of delivering a liquid from a reservoir, wherein one end of a tube is immersed in a reservoir containing the liquid to be delivered, at the one end of the tube liquid flows from the reservoir into the tube. A one-way valve which allows the flow of water in the opposite direction but does not allow the flow of water in the opposite direction. The method, comprising reciprocating. 2. The method of claim 1, wherein the tube is a short rigid tube, the rigid tube is connected to a longer flexible tube, and the short rigid tube reciprocates. Due to
A method wherein liquid is delivered through the flexible tube. 3. The method of claim 1, wherein the tube is reciprocated periodically at a frequency of at least 5 Hz. 4. The method of claim 1, wherein the immersed end of the tube is reciprocated by an electromagnet. 5. The method of claim 4, wherein the immersed end of the tube is supported by elastic means that allows the tube to reciprocate. 6. The method according to claim 5, wherein the elastic means is a diaphragm. 7. The method of claim 5, wherein the elastic means is a spring. 8. The method of claim 1, wherein the electrical drive and the tube are mounted on a spring to form a vibrating assembly, the vibrating assembly of the electrical drive. A method of adjusting to resonate at a frequency. 9. A liquid pump for delivering a liquid from a reservoir, a tube having one end submersible in the liquid in the reservoir and one end of the tube for allowing the liquid to flow from the reservoir into the tube. A one-way valve that allows flow in the opposite direction but does not allow flow in the opposite direction, and an electrical drive that periodically reciprocates one end of the tube parallel to the longitudinal axis of the tube. A liquid pump characterized in that. 10. The liquid pump according to claim 9,
The electrical drive is disposed within a housing through which the tube extends, the housing being supported on a spring to form a vibrating assembly, the vibrating assembly comprising the electrical drive. A liquid pump that is adjusted so as to resonate at the frequency of.