Ejaculation unit

Abstract

The present invention provides a liquid discharge unit that can be easily installed and obtain filtered liquid. [Solution] The discharge unit comprises a housing, a pump, and a filter. The housing includes a liquid suction section immersed in a liquid source, a discharge section positioned above and spaced apart from the liquid suction section, and a riser section formed at least from the liquid suction section to the discharge section. The liquid suction section has a suction hole for drawing in liquid from the liquid source, and the discharge section has a discharge hole for discharging liquid. Inside the housing, a flow path is formed extending from the suction hole to the discharge hole via the riser section. The pump is built into the housing and configured to send liquid from the suction hole to the discharge hole. The filter is built into the housing and configured to filter the liquid sent from the suction hole to the discharge hole.

Description

Technical Field

[0001] The present invention relates to a liquid discharging unit that filters a liquid and discharges the filtered liquid.

Background Art

[0002] Conventionally, an emergency water purification device as described in Patent Document 1 is known. The emergency water purification device includes a water supply hose, an outflow hose, a flow path extending from the water supply hose to the outflow hose, a manual pump and a plurality of filters disposed in the middle of the flow path, and a casing. The casing is provided with a bracket for attaching the filter and the manual pump inside, and can accommodate the plurality of filters, the manual pump, and the flow path.

[0003] According to the above-described emergency water purification device, it is possible to generate drinking water by filtering water that cannot be used as drinking water with a filter, and thus it is possible to temporarily secure drinking water.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] When using an emergency water purification device as described in Patent Document 1, after installing the casing, it is necessary to extend the water supply hose to the water source and immerse it in the water source, and extend and install the outflow hose to the place where the water is used. Thus, the preparation for using water is complicated, and water cannot be used easily.

[0006] Therefore, an object of the present invention is to provide a liquid discharging unit that can be easily installed and can obtain a filtered liquid. <矚

Means for Solving the Problems

[0007] The discharge unit of the present invention comprises a housing, a pump, and a filter, wherein the housing includes a liquid suction section immersed in a liquid source, a discharge section positioned above and spaced apart from the liquid suction section, and a riser section formed at least from the liquid suction section to the discharge section, the liquid suction section has a liquid suction hole for drawing in liquid from the liquid source, the discharge section has a discharge hole for discharging liquid, a flow path is formed inside the housing extending from the liquid suction hole to the discharge hole via the riser section, the pump is built into the housing and configured to send liquid from the liquid suction hole to the discharge hole, and the filter is built into the housing and configured to filter the liquid sent from the liquid suction hole to the discharge hole.

[0008] With this configuration, since the housing is equipped with a liquid discharge section and a liquid absorption section that is immersed in the liquid, the installation of the liquid discharge unit is completed by immersing the liquid absorption section of the housing in the liquid.

[0009] Furthermore, the liquid-absorbing portion may be plate-shaped, extending in a planar direction perpendicular to the vertical direction, and the rising portion may be configured to be located within the range of the liquid-absorbing portion in the planar direction.

[0010] With this configuration, the liquid absorption section is plate-shaped, and the rising section is located within the plate-shaped area. This makes it easier to make the discharging unit stand on its own when installed on a liquid source, and prevents the discharging unit from tipping over during use.

[0011] Furthermore, the filter can be plate-shaped and positioned inside the liquid-absorbing section.

[0012] With this configuration, a plate-shaped filter is provided in the liquid absorption section, allowing the center of gravity of the housing to be positioned lower. Therefore, the discharge unit is more stable when installed in a liquid source.

[0013] Furthermore, the housing can also be configured to be a columnar shape with a substantially constant outer diameter, with the liquid absorption hole located at the lower end of the columnar shape and the liquid discharge hole located at the upper end of the columnar shape.

[0014] According to such a configuration, since the housing is columnar, it is easy to be stable when installed on the liquid source.

Effects of the Invention

[0015] According to the present invention, it is possible to obtain a liquid discharging unit that can be easily installed and can obtain filtered liquid.

Brief Description of the Drawings

[0016] [Figure 1] It is a side view of the liquid discharging unit according to the first embodiment of the present invention. [Figure 2] It is a plan view of the liquid discharging unit. [Figure 3] It is a cross-sectional view taken along line III-III shown in FIG. 2. [Figure 4] It is a cross-sectional view taken along line IV-IV shown in FIG. 1. [Figure 5] It is a view showing the configuration of the filter of the liquid discharging unit. [Figure 6] It is a view showing the main filter portion of the liquid discharging unit. [Figure 7] It is a view showing the usage state of the liquid discharging unit. [Figure 8] It is a side view of the liquid discharging unit according to the second embodiment of the present invention. [Figure 9] It is a cross-sectional view taken along line IX-IX shown in FIG. 8. [Figure 10] It is a view showing the usage state of the liquid discharging unit.​​​​​​​​​​​​​​​​A discharging unit 1 according to one embodiment of the present invention will be described with reference to Figures 1 to 7. For the sake of explanation, the vertical, horizontal, and front-to-back directions will be described based on the directions shown in Figures 1 and 2.

[0018] As shown in Figures 1 to 4, the discharge unit 1 comprises a housing 2, a filter 3 built into the housing 2, a pump 4 built into the housing 2, and a power supply unit 5 for supplying power to the pump 4. The discharge unit 1 is a discharge unit that sucks up liquid water, filters the sucked-up water, and discharges it. The discharge unit 1 is also an externally sucked type discharge unit 1 that sucks up liquid from the outside, filters the sucked-up liquid, and supplies it. The discharge unit 1 is small enough to be lifted and carried by a person, specifically, its total weight is 20 kg or less, and the sum of the three sides (sum of the vertical length, horizontal length, and front-to-back length) is 180 cm or less. The discharge unit 1 of this embodiment is small enough to be lifted and carried by a person with one hand, its total weight is 2 kg or less, and the sum of the three sides is 100 cm or less.

[0019] The housing 2 comprises a liquid absorption section 6 located at its lower end, a liquid discharge section 7 located above and spaced apart from the liquid absorption section 6, and a vertically extending riser section 8 connecting the liquid absorption section 6 and the liquid discharge section 7. The housing 2 is hollow as a whole, and has a flow path for liquid to pass through, as well as a space for housing the pump 4, filter 3, and power supply unit 5.

[0020] The liquid-absorbing portion 6 is plate-shaped, extending in a direction that intersects the vertical direction, and its vertical length is shorter than its length in the direction that intersects the vertical direction. In this embodiment, the liquid-absorbing portion 6 is a plate-shaped body that extends in a substantially circular shape, and its upper and lower surfaces are substantially flat. The liquid-absorbing portion 6 comprises a plate-shaped upper surface portion 61 that extends horizontally, a plate-shaped side portion 62 that extends downward from the horizontal edge of the plate-shaped upper surface portion 61, and a plate-shaped bottom plate portion 63 that is spaced below the plate-shaped upper surface portion 61 and extends horizontally. The plate-shaped upper surface portion 61, the plate-shaped side portion 62, and the bottom plate portion 63 form a filter housing space 6a in which the filter 3 is housed. The plate-shaped upper surface portion 61 is a flat plate-shaped body that extends horizontally. In this embodiment, the plate-shaped upper surface portion 61 and the plate-shaped side portion 62 are constructed as a single unit.

[0021] The plate side portion 62 is cylindrical in shape, extending downward from the outer edge of the plate top portion 61, and in this embodiment, it is substantially cylindrical. The outer surface of the plate side portion 62 is inclined such that the upper side is located outward and the lower side is located inward in the horizontal direction. Furthermore, multiple liquid absorption holes 62b are formed in the plate side portion 62, penetrating inward and outward in the horizontal direction. In this embodiment, the plate side portion 62 has a liquid absorption groove 62a extending upward from the lower end of the plate side portion 62, and a liquid absorption hole 62b at the upper end of the liquid absorption groove 62a, which is a hole that connects the inside and outside of the filter housing space 6a. The liquid absorption groove 62a is recessed inward in the horizontal direction relative to the outer surface of the plate side portion 62. Multiple liquid absorption grooves 62a and liquid absorption holes 62b are formed spaced apart in the circumferential direction of the plate side portion 62.

[0022] The bottom plate portion 63 is attached to the inner circumferential surface of the plate side portion 62 at a position located below the plate top portion 61. The bottom plate portion 63 in this embodiment comprises a horizontally extending plate-shaped bottom plate body 631 and an elastic ring 632, which is an elastic body, provided along the outer circumferential surface of the bottom plate body 631. When the elastic ring 632 is in its natural state, the outer diameter of the bottom plate portion 63 is larger than the inner diameter of the plate side portion 62. By compressing the elastic ring 632 radially and pushing it into the interior of the plate top portion 61, the restoring force of the elastic ring 632 causes the bottom plate portion 63 to be attached to the inner circumferential surface of the plate side portion 62. Furthermore, the compression of the elastic ring 632 creates a liquid-tight seal between the bottom plate portion 63 and the plate side portion 62.

[0023] The discharge section 7 is a cylindrical body positioned above and spaced apart from the suction section 6, with its base end and tip end spaced apart horizontally. The discharge section 7 comprises a cylindrical discharge body 71 with a closed tip and an open base end, and a discharge connecting section 72 provided at the base end of the discharge body 71. The discharge body 71 is a cylindrical body, inclined in the vertical and horizontal directions such that its tip is positioned above and to the left of its base end. The discharge body 71 also has a passage space for filtered liquid to pass through, extending from the base end to the tip end, and a discharge hole 71a is formed to connect the passage space to the outside. The discharge hole 71a is a hole through which filtered liquid is discharged and is formed facing downward on the outer circumferential surface of the discharge body 71. Furthermore, the discharge body 71 has an exposed hole 71b through which the sensor section 431 of the pump 4, described later, is exposed. The exposed hole 71b is a hole formed at a position closer to the proximal end than the discharge hole 71a, and facing the same direction as the discharge hole 71a.

[0024] The discharge connecting portion 72 is a columnar body positioned at the base end of the discharge main body portion 71 to close the fluid passage space. Specifically, the discharge connecting portion 72 comprises an insertion portion 721 with an outer diameter smaller than the outer diameter of the discharge main body portion 71, and a fluid passage portion 722 extending from the tip side to the base end side of the insertion portion 721. The insertion portion 721 is columnar in shape with an inner diameter approximately equal to that of the fluid passage space, and in this embodiment it is cylindrical. The fluid passage portion 722 is an annular body that penetrates the insertion portion 721 from the base end side to the tip side, and communicates the inside and outside of the fluid passage space.

[0025] The riser section 8 is a cylindrical body extending vertically, connecting the upper plate surface 61 and the base end of the discharge section 7. The riser section 8 comprises a lower cylindrical section 82 that forms the lower part of the riser section 8 and an upper cylindrical section 81 that forms the upper part of the riser section 8. The lower cylindrical section 82 and the upper cylindrical section 81 are connected side by side in the vertical direction, forming a single cylindrical body as a whole. In addition, a space is formed inside the riser section 8 to house the pump 4 and the power supply unit 5.

[0026] The lower cylindrical portion 82 is a cylindrical body erected on the upper plate portion 61, with its lower end connected to the upper plate portion 61. In this embodiment, the lower cylindrical portion 82 has a substantially uniform inner diameter from the upper end to the lower end and is provided to extend along the vertical direction. Furthermore, the lower cylindrical portion 82 is provided so that the internal space of the liquid absorption portion 6 and the internal space of the lower cylindrical portion 82 are in communication. Moreover, the outer diameter of the lower cylindrical portion 82 is smaller than the outer diameter of the liquid absorption portion 6, specifically, it is less than half the outer diameter. In this embodiment, the lower cylindrical portion 82 and the upper plate portion 61 are formed as a single unit.

[0027] The upper cylinder portion 81 comprises an inclined portion 811 that forms the upper end of the upper cylinder portion 81 and extends in a direction intersecting the vertical direction, and a straight portion 812 that extends from the inclined portion 811 to the lower end of the upper cylinder portion 81. The upper cylinder portion 81 has a tapered shape, with the inner diameter of the lower side being larger than the inner diameter of the upper side. The inclined portion 811 has a curved shape, so that the entire shape is convex to the upper right. Furthermore, the outer diameter of the lower end of the upper cylinder portion 81 is approximately equal to the outer diameter of the lower cylinder portion 82, and the outer diameter of the upper end of the upper cylinder portion 81 is approximately equal to the outer diameter of the discharge body portion 71.

[0028] The upper cylinder portion 81 has a lower end that can be connected to the upper end of the lower cylinder portion 82, and in this embodiment, the upper cylinder portion 81 is detachable from the lower cylinder portion 82. Specifically, the lower end of the upper cylinder portion 81 is detachable from the upper end of the lower cylinder portion 82, and in this embodiment, a male thread is formed on the upper end of the lower cylinder portion 82, and a female thread that can be screwed into the male thread is formed on the lower end of the upper cylinder portion 81. By screwing the male thread into the female thread, the lower cylinder portion 82 and the upper cylinder portion 81 are locked together, and the upper cylinder portion 81 is attached to the lower cylinder portion 82. By releasing the screws of the male and female threads, the locking between the upper cylinder portion 81 and the lower cylinder portion 82 is released, and the upper cylinder portion 81 is detached from the lower cylinder portion 82. In this way, since the upper cylinder portion 81 and the lower cylinder portion 82 are detachable, it is easy to perform work on the components housed inside the riser portion 8, such as maintenance of the pump 4 or replacement of the battery installed in the power supply unit 5.

[0029] Furthermore, the base end of the discharge section 7 can be detachably attached to the upper end of the upper cylinder section 81. Specifically, the discharge section 7 can be connected to the upper cylinder section 81 by inserting the discharge connecting section 72 of the discharge section 7 into the upper end of the inclined section 811, and the discharge section 7 can be removed from the upper cylinder section 81 by pulling out the discharge connecting section 72 from the upper end of the inclined section 811. In addition, when the discharge section 7 is connected to the upper end of the upper cylinder section 81, the liquid passage space and the internal space of the riser section 8 are in communication through the liquid passage section 722.

[0030] As shown in Figures 1 and 2, in a plan view, the entire rising section 8 is located inside the liquid-absorbing section 6. Specifically, the lower end of the rising section 8 is connected to the center and right end of the liquid-absorbing section 6 in the front-to-back direction, from which the lower cylindrical section 82 and the straight section 812 extend upward in the vertical direction, while the inclined section 811 extends to the left and upward. The tip of the inclined section 811 is located to the right of the left end of the liquid-absorbing section 6. Therefore, the entire rising section 8 is contained within the range of the liquid-absorbing section 6 in a plan view.

[0031] Furthermore, the discharge portion 7 is positioned such that its base end is within the range of the absorbent portion 6 in a plan view, and its tip end is outside the range of the absorbent portion 6 in a plan view. Specifically, the discharge portion 7 is positioned such that its discharge hole 71a is located outside the range of the absorbent portion 6.

[0032] As shown in Figures 3 to 6, the filter 3 comprises a pre-filter section 31 for filtering liquid, a main filter section 32 for further filtering the liquid filtered by the pre-filter section 31, and a temporary storage section 33 for storing the liquid filtered by the main filter section 32.

[0033] The pre-filter section 31 comprises a plate-shaped first filter section 311 and a plate-shaped second filter section 312 having the same outer shape as the first filter section 311. The first filter section 311 is a plate-shaped body with multiple holes formed through it in the thickness direction, and in this embodiment, it is a mesh plate with multiple round holes. The second filter section 312 is a mesh filter. The mesh of the second filter section 312 is finer than the size of the holes in the first filter section 311. The first filter section 311 and the second filter section 312 are arranged stacked vertically. Therefore, the first filter section 311 can remove particles with a large diameter, and the second filter section 312 can remove particles that have passed through the first filter section 311.

[0034] The main filter section 32 comprises a filtration member 321 that further filters the liquid filtered by the pre-filter section 31, and a filter support section 322 that supports the filtration member 321. In this embodiment, the filtration member 321 is supported by the housing body section 331. In other words, the filter support section 322 in this embodiment is the housing body section 331, and it fixes and supports the other end of the filtration member 321. Furthermore, the main filter section 32 is positioned above the pre-filter section 31, and is configured so that only the liquid that has passed through the pre-filter section 31 reaches the outer circumferential surface of the main filter section 32.

[0035] The filtration member 321 is cylindrical in shape, allowing liquid to penetrate from its outer surface to the interior, and is configured to remove solid matter as the liquid penetrates. The filtration member 321 in this embodiment is a cylindrical ceramic filter. Furthermore, the filtration member 321 is a cylindrical body with one end closed in the axial direction and the other end open. Such filtration members 321 are arranged horizontally on the upper surface of the bottom plate body 631, and the axial lengths of adjacent filtration members 321 differ so that they fit within the bottom plate body 631 in a plan view. Specifically, the axial length of the filtration members 321 is the length that one end of the horizontally arranged filtration members 321 is aligned along the outer edge of the bottom plate body 631. Because the filtration members 321 are arranged in this way, the entire filter section 32 is formed in a plate shape in a plan view.

[0036] The temporary storage section 33 is a box-shaped body that forms a liquid storage space for storing filtered liquid inside. Specifically, the temporary storage section 33 comprises a box-shaped storage body 331 that forms the liquid storage space, and a discharge section 332, which is a cylindrical body that penetrates the upper surface of the storage body 331 in the vertical direction and extends upward, connecting the inside and outside of the storage body 331. The other end of the filtration member 321 is connected to the storage body 331 so as to penetrate from the side into the liquid storage space, and the liquid that is filtered by the filtration member 321 and flows inside the filtration member 321 flows into the liquid storage space. Furthermore, the liquid stored in the liquid storage space is configured to be discharged to the outside of the liquid storage space from the discharge section 332. In this embodiment, the liquid is discharged from the discharge section 332 by the operation of the pump 4, which will be described later. The temporary storage section 33 is located on the upper part of the bottom plate body 631.

[0037] Such a filter 3 is formed in a plate shape overall and is housed in the filter housing space 6a inside the liquid absorption section 6. Specifically, it is positioned inside the liquid absorption section 6 such that the discharge section 332 is located below the riser section 8. When maintenance such as replacement of the filter 3 is required, the filter 3 can be removed from inside the liquid absorption section 6 by removing the bottom plate section 63 of the liquid absorption section 6.

[0038] As shown in Figure 3, the pump 4 is located inside the riser section 8 and is configured to deliver liquid from inside the suction section 6 to the discharge section 7. Specifically, the pump 4 comprises a pump body section 41 that draws liquid from inside the suction section 6 and delivers the drawn liquid, a liquid guide section 42 that guides the liquid delivered by the pump body section 41 to the discharge section 7, and a pump control section 43 that controls the operation of the pump body section 41.

[0039] The pump body 41 comprises a liquid intake port 411 for drawing in liquid, a liquid discharge port 412 for sending liquid, and a drive unit 413. The drive unit 413 applies pressure to the liquid drawn in from the liquid intake port 411 and sends it to the liquid discharge port 412. In this embodiment, both the liquid intake port 411 and the liquid discharge port 412 are tubular bodies extending downward from the drive unit 413. The liquid intake port 411 is connected to the discharge port 332 of the temporary storage unit 33, and is configured to draw up liquid from the temporary storage unit 33 via the discharge port 332. The liquid discharge port 412 is a tubular body connected to the liquid guide unit 42. In this embodiment, the drive unit 413 is driven by electricity.

[0040] The fluid guide section 42 is a tubular body that extends from the fluid inlet 412 to the fluid passage section 722 of the discharge connection section 72. The fluid guide section 42 is a tubular body that can expand and contract in the axial direction, and is also a flexible tubular body that can be bent in the axial direction. The fluid guide section 42 is positioned within the riser section 8 to avoid other components such as the pump body section 41. With this configuration, when the discharge section 7 is removed from the riser section 8, the fluid guide section 42 extends and is pulled out, so fluid can be discharged from the discharge section 7 even when the discharge section 7 is pulled out from the riser section 8.

[0041] The pump control unit 43 includes a sensor unit 431. The sensor unit 431 is a proximity sensor and emits a signal when an object such as a hand approaches it. In this embodiment, the sensor unit 431 is located in the discharge unit 7 and is provided to be exposed through the exposure hole 71b. Therefore, when an object such as a hand approaches the exposure hole 71b, it detects the approach and emits a signal. The pump control unit 43 also controls the pump body unit 41 to drive when the sensor unit 431 emits a signal. In this embodiment, the pump body unit 41 is driven for a predetermined time after the sensor unit 431 emits a signal, and then the drive is stopped.

[0042] The power supply unit 5 is a section where a battery can be installed to supply power to the pump 4 body, and is configured to supply power to the pump 4 body from the installed battery. The power supply unit 5 is positioned above the pump 4 body, aligned vertically. In addition, a primary battery can be installed in the power supply unit 5 of this embodiment.

[0043] The method of using the discharge unit 1 with the above configuration will be explained with reference to Figure 7.

[0044] As shown in Figure 7, when using the discharge unit 1, the suction unit 6 is placed on the liquid source and immersed in the liquid source. The liquid source in this embodiment is, for example, a river, a pond, or a container that holds water. At this time, the suction unit 6 is immersed in the liquid. When the suction unit 6 is installed on the liquid source, the liquid from the liquid source flows into the inside of the suction unit 6 through the suction holes 62b. Also, as the liquid passes through the suction holes 62b, the liquid that has flowed into the discharge unit 7 passes through the pre-filter section 31 by liquid pressure and reaches the main filter section 32. Here, when passing through the pre-filter section 31, foreign matter with large particle sizes such as sand and soil is removed. The liquid that reaches the main filter section 32 then permeates into the filtration member 321 by liquid pressure and is filtered, and the filtered liquid accumulates in the temporary storage section 33.

[0045] In this state, when the pump body 41 is driven, the liquid accumulated in the temporary storage section 33 is drawn up to the pump body 41 and, under pressure, sent to the discharge section 7 via the liquid guide section 42. Also, as the pump body 41 draws up the liquid accumulated in the temporary storage section 33, a negative pressure is created inside the temporary storage section 33 and the filtration member 321, making it easier for liquid to penetrate from the outer surface of the filter section 32 into the interior, and increasing the filtration speed of the filter section 32. The liquid sent to the discharge section 7 is then discharged from the discharge hole 71a.

[0046] With the liquid discharge unit 1 configured as described above, the liquid discharge section 7 and the liquid absorption section 6 that is immersed in the liquid are provided in the housing 2. Therefore, the installation of the liquid discharge unit 1 is completed by immersing the liquid absorption section 6 of the housing 2 in the liquid.

[0047] Furthermore, since the liquid absorption section 6 is plate-shaped and the upright section 8 is located within the plate-shaped area, the discharge unit 1 is easy to make stand on its own when installed on a liquid source, and the discharge unit 1 is less likely to tip over during use.

[0048] Furthermore, since a plate-shaped filter 3 is provided in the liquid absorption section 6, the center of gravity of the housing 2 can be positioned lower. Therefore, the discharge unit 1 is more stable when installed in a liquid source.

[0049] Furthermore, the pump 4 is positioned inside the riser section 8. Therefore, the space required to guide the liquid to the discharge section 7 can be effectively utilized for its placement.

[0050] Furthermore, even if the pump 4 is not driven, the system is configured so that filtered liquid accumulates in the temporary storage section 33 due to hydraulic pressure, allowing for quick discharge when the pump 4 is driven.

[0051] Next, with reference to Figures 8 to 11, a second embodiment of the present invention, a discharging unit 1, will be described.

[0052] The discharge unit 1 comprises a columnar housing 2, a filter 3 built into the housing 2, a pump 4 built into the housing 2, and a power supply unit 5 for supplying power to the pump 4. The configuration of the power supply unit 5 is the same as in the first embodiment. Similar to the first embodiment, the discharge unit 1 is a discharge unit that sucks up liquid water, filters the sucked-up water, and discharges it. Furthermore, the discharge unit 1 is an externally sucked type discharge unit 1 that sucks up liquid from the outside, filters the sucked-up liquid, and supplies it. In addition, the discharge unit 1 is small enough to be lifted and carried by a person, and is small enough to be lifted and carried by a person with one hand.

[0053] The housing 2 comprises a liquid absorption section 6 located at its lower end, a liquid discharge section 7 located above and spaced apart from the liquid absorption section 6, and a vertically extending riser section 8 connecting the liquid absorption section 6 and the liquid discharge section 7. The housing 2 is hollow as a whole, and has a flow path for liquid to pass through, as well as a space for housing the pump 4, filter 3, and power supply unit 5.

[0054] Furthermore, the housing 2 of this embodiment is a columnar body with flat upper and lower end surfaces, specifically a cylindrical body. Moreover, the housing 2 has an outer diameter that is approximately constant from the lower end to the upper end, and is an elongated columnar shape with a vertical length that is longer than the radial length. Specifically, the housing 2 comprises a cylindrical housing base 21 that extends upward from the lower end, with a closed lower end and an open upper end, and a cylindrical housing lid 22 that is open at the lower end and closed at the upper end, and is provided on the upper part of the housing base 21. The upper end of the housing base 21 and the lower end of the housing lid 22 are connected, so that the housing 2 as a whole is formed into a columnar shape. The housing lid 22 is configured to be detachable from the housing base 21, and by removing the housing lid 22, it becomes easier to perform work on components housed inside the riser 8, for example, when performing maintenance on the pump 4 or replacing the battery installed in the power supply unit 5. Furthermore, the housing base 21 constitutes the liquid absorption section 6 and the rising section 8, and the housing lid 22 constitutes the liquid discharge section 7.

[0055] The liquid absorption section 6 is located at the lower end of the housing 2 and is a hollow cylindrical shape capable of absorbing liquid from the outside to the inside, housing the filter 3 inside. The liquid absorption section 6 also has multiple liquid absorption holes 62b that extend upward from the lower end and communicate the inside and outside. In this embodiment, the liquid absorption section 6 is the portion from the lower end of the housing base 21 to the middle in the vertical direction.

[0056] The discharge section 7 is a cylindrical body provided spaced above the absorption section 6. In this embodiment, the discharge section 7 is positioned so as to overlap with the absorption section 6 in the horizontal direction. The discharge section 7 also has a discharge hole 71a that penetrates radially through its outer surface. The discharge hole 71a is a hole whose vertical length is longer than its circumferential length, and it extends along the vertical direction.

[0057] The rising section 8 is a cylindrical body extending vertically, connecting the upper end of the liquid absorption section 6 and the lower end of the liquid discharge section 7. In this embodiment, it is the portion from the middle to the upper end of the housing base 21 in the vertical direction. The rising section 8 extends vertically with a constant outer diameter.

[0058] The filter 3 comprises a main filter section 32 that filters the liquid absorbed from the liquid absorption section 6, and a temporary storage section 33 that contains the liquid filtered by the main filter section 32. The filter 3 of this embodiment differs from the first embodiment in that it does not have a pre-filter section 31.

[0059] The filter section 32 comprises a filtration member 321 for filtering liquid and a filter support section 322 for supporting the filtration member 321. The filter support section 322 is a plate-like body that supports the filtration member 321 and is a round plate in plan view. The filter support section 322 is fixed to the inner circumferential surface of the rising section 8.

[0060] The filtration member 321 is a ceramic filter similar to that in the first embodiment. In this embodiment, the filtration member 321 is arranged such that its axial direction is aligned with the vertical direction, and multiple filtration members 321 are arranged in an annular pattern along the inner circumferential surface of the rising portion 8. Specifically, the filtration member 321 is arranged such that one end, which is the closed side, is located on the lower side, and the other end, which is the open side, is located on the upper side, and the upper end is supported by the filter support portion 322. In other words, the filtration member 321 is arranged in a suspended state from the filter support portion 322.

[0061] Thus, in this embodiment, the filter section 32 is formed in a vertical column shape as a whole, with the filter member 321 suspended by the filter support section 322 located above, and the suspended filter member 321 extending in the vertical direction. In other words, in this embodiment, the columnar filter section 32 is located inside the liquid absorption section 6.

[0062] The temporary storage section 33 is a box-shaped body that forms a liquid storage space for storing the filtered liquid inside. Specifically, the temporary storage section 33 comprises a box-shaped storage body 331 that forms the liquid storage space, and a discharge section 332, which is a cylindrical body that penetrates the upper surface of the storage body 331 in the vertical direction and extends upward, communicating the inside and outside of the storage body 331. The upper end of the filtration member 321 is connected to the storage body 331 so as to penetrate from below into the liquid storage space, and the liquid that is filtered by the filtration member 321 and flows inside the filtration member 321 flows into the liquid storage space. Furthermore, the liquid stored in the liquid storage space is configured to be discharged to the outside of the liquid storage space from the discharge section 332. In this embodiment, the liquid is discharged from the discharge section 332 by the operation of the pump 4, which will be described later. In this embodiment, the temporary storage section 33 is located above the filter section 32.

[0063] Pump 4 is located inside the riser section 8 and is configured to deliver liquid from inside the suction section 6 to the discharge section 7. Furthermore, pump 4 in this embodiment is also configured to deliver liquid in the reverse direction from the discharge section 7 to the suction section 6. Specifically, pump 4 comprises a pump body section 41 that draws liquid from inside the suction section 6 and delivers the drawn liquid, a liquid guide section 42 that guides the liquid delivered by the pump body section 41 to the discharge section 7, and a pump control section 43 that controls the operation of the pump body section 41. Pump control section 43 in this embodiment includes a switch (not shown) for switching the drive state of the pump body section 41. The switch can switch between a normal drive state in which the pump body section 41 delivers liquid from the suction port 411 to the discharge port 412, a stopped state in which the pump body section 41 stops, and a reverse drive state in which the pump body section 41 delivers liquid from the discharge port 412 to the suction port 411.

[0064] The pump body 41 comprises a liquid intake port 411 for drawing in liquid, a liquid discharge port 412 for sending liquid, and a drive unit 413. The drive unit 413 applies pressure to the liquid drawn in from the liquid intake port 411 and sends it to the liquid discharge port 412 (normal drive state). In this embodiment, both the liquid intake port 411 and the liquid discharge port 412 are tubular bodies extending downward from the drive unit 413. The liquid intake port 411 is connected to the discharge port 332 of the temporary storage unit 33, and is configured to draw up liquid from the temporary storage unit 33 via the discharge port 332. The liquid discharge port 412 is a tubular body connected to the liquid guide unit 42. The pump body 41 is also configured to send liquid in the reverse direction (reverse drive state). Specifically, the pump body 41 can also draw liquid from the discharge port 412 and send it to the suction port 411 by driving the drive unit 413 in the opposite direction to when sending liquid from the suction port 6 to the discharge port 7.

[0065] The fluid guide section 42 is a tubular body extending from the fluid inlet 412 to the discharge hole 71a. The fluid guide section 42 is a tubular body that can expand and contract in the axial direction, and is also a flexible tubular body that can be bent in the axial direction. The fluid guide section 42 is positioned within the riser section 8 to avoid other components such as the pump body section 41.

[0066] Furthermore, the fluid guide section 42 comprises a discharge fluid guide section 421 that forms the end on the discharge hole 71a side, and a fluid guide body section 422 that extends from the fluid inlet 412 to the discharge fluid guide section 421. The fluid guide body section 422 is a tubular body through which liquid can pass from one end to the other in the axial direction. The discharge fluid guide section 421 is a tubular body with its lower end connected to the other end of the fluid guide body section 422 and its upper end closed. The discharge fluid guide section 421 extends vertically along the discharge hole 71a and has a discharge exposure section that is exposed to the outside from the discharge hole 71a, and a fluid guide hole (not shown) is formed in the discharge exposure section through which the internal liquid can flow out to the outside. Multiple fluid guide holes are formed spaced apart in the vertical direction, and the internal liquid can flow out from each fluid guide hole.

[0067] The method of using the discharge unit 1 with the above configuration will be explained with reference to Figure 10.

[0068] When using the discharge unit 1, the suction unit 6 is placed on the liquid source and the suction unit 6 is immersed in the liquid source. The liquid source in this embodiment is, for example, a river, a pond, or a container that holds water. When the discharge unit 7 is installed on the liquid source, the liquid from the liquid source flows into the inside of the suction unit 6 through the suction hole 62b. In this state, when the pump body 41 is set to the normal operating state, the inside of the temporary storage unit 33 and the filtration member 321 becomes negative pressure, so liquid permeates into the inside from the outer surface of the filter unit 32, and the permeated liquid is sucked up by the pump 4. Then the liquid is sent to the discharge hole 71a and discharged from the discharge hole 71a. In this way, a flow path for liquid is formed inside the housing 2 by the suction unit 6, filter 3, pump 4 and discharge unit 7.

[0069] Here, since multiple fluid intake holes are formed spaced apart in the vertical direction, fluid is discharged from multiple positions in the vertical direction at the discharge hole 71a. Furthermore, since the discharge hole 71a is long in the vertical direction and short in the horizontal direction, the discharged liquid is supplied in a concentrated manner within a narrow area in the horizontal direction. Therefore, even if the amount of fluid discharged is small, it is easy to use because the liquid is concentrated.

[0070] Furthermore, when the pump 4 is stopped, the liquid accumulated in the temporary storage section 33 tends to flow downward due to gravity, and the resulting liquid pressure causes the liquid inside the temporary storage section 33 and the filter member 321 to permeate from the inside to the outside of the filter member 321. At this time, particles and other materials removed by the filter member 321 flow out with the liquid that permeates from the inside to the outside, thereby suppressing clogging of the filter member 321 and preventing a decrease in the performance of the filter member 321 due to use.

[0071] Furthermore, as shown in Figure 11, by placing the discharge unit 7 on a liquid source and immersing the discharge unit 7 in the liquid source, the pump 4 can be driven in reverse, thereby creating a state where liquid is drawn in from the discharge unit 7 and discharged from the suction unit 6. In such cases, the liquid source can be, for example, clean water such as tap water or a container holding filtered liquid. When the discharge unit 7 is placed on a liquid source and immersed in the liquid source, and the pump 4 is driven in reverse, the pump 4 sends liquid into the temporary storage unit 33 and the filtration member 321, and the liquid inside is subjected to pressure generated by the pump 4. This pressure causes the liquid inside the temporary storage unit 33 and the filtration member 321 to permeate from the inside to the outside of the filtration member 321. At this time, particles removed by the filtration member 321 flow out with the liquid that permeates from the inside to the outside, suppressing clogging of the filtration member 321 and preventing a decrease in the performance of the filtration member 321 due to use.

[0072] With the liquid discharge unit 1 configured as described above, the housing 2 is columnar, making it more stable when installed on a liquid source.

[0073] Next, a discharging unit according to a third embodiment of the present invention will be described with reference to Figures 12 and 13.

[0074] The discharge unit 1 comprises a columnar housing 2, a filter 3 built into the housing 2, a pump 4 built into the housing 2, and a power supply unit 5 for supplying power to the pump 4. The configuration of the power supply unit 5 is the same as in the first embodiment. Similar to the first embodiment, the discharge unit 1 is a discharge unit that sucks up liquid water, filters the sucked-up water, and discharges it. Furthermore, the discharge unit 1 is an externally sucked type discharge unit 1 that sucks up liquid from the outside, filters the sucked-up liquid, and supplies it. In addition, the discharge unit 1 is small enough to be lifted and carried by a person, and is small enough to be lifted and carried by a person with one hand.

[0075] The housing 2 comprises a liquid absorption section 6 located at its lower end, a liquid discharge section 7 located above and spaced apart from the liquid absorption section 6, and a vertically extending riser section 8 connecting the liquid absorption section 6 and the liquid discharge section 7. The housing 2 is hollow as a whole, and has a flow path for liquid to pass through, as well as a space for housing the pump 4, filter 3, and power supply unit 5. In this embodiment, the riser section 8 extends continuously from the lower end to the upper end of the housing 2, and extends continuously from the liquid absorption section 6 to above the liquid discharge section 7.

[0076] Furthermore, the housing 2 of this embodiment is a columnar body with flat upper and lower end surfaces, specifically a cylindrical body. Moreover, the housing 2 has an outer diameter that is approximately constant from the lower end to the upper end, and is an elongated columnar shape with a vertical length that is longer than the radial length. Specifically, the housing 2 comprises a cylindrical lower part 23 that extends upward from the lower end, with a closed lower end and an open upper end, and a cylindrical upper part 24 that is open at the lower end and closed at the upper end, and is provided above the lower part 23. The upper end of the lower part 23 and the lower end of the upper part 24 are connected, so that the housing 2 as a whole is formed into a columnar shape. The upper part 24 is configured to be detachable from the lower part 23, and by removing the upper part 24, it becomes easier to perform work on components housed inside the riser part 8, for example, when performing maintenance on the pump 4 or replacing the battery installed in the power supply unit 5.

[0077] The lower section 23 includes a liquid absorption section 6 provided at its lower end, a liquid discharge section 7 provided spaced above the liquid absorption section 6, an upstream filter housing section 25 and a downstream filter housing section 26 in which the filter 3 is housed, a liquid absorption cylinder 27 communicating with the upstream filter housing section 25 and extending above the upstream filter housing section 25, and a liquid discharge cylinder 28 communicating with the downstream filter housing section 26 and extending above the downstream filter housing section 26. The liquid absorption cylinder 27 is provided to extend upward from the upstream filter housing section 25, and the liquid discharge cylinder 28 is provided to extend upward from the downstream filter housing section 26. Furthermore, the liquid absorption cylinder 27 and the liquid discharge cylinder 28 are provided to protrude upward from the upper surface of the lower section 23. Inside the lower section 23, the upstream filter housing 25 and the downstream filter housing 26 are partitioned to prevent liquid from directly passing through them. Inside the lower section 23, the liquid absorption section 6, the upstream filter housing 25, and the liquid absorption cylinder 27 are in communication in the vertical direction, while the discharge cylinder 28, the downstream filter housing 26, and the discharge section 7 are in communication.

[0078] The upper part 24 is a cylindrical body capable of housing the pump 4 and the power supply unit 5 inside. The upper part 24 can house the pump 4 with its lower surface exposed downwards, and can also house the power supply unit 5 above the pump 4. In this embodiment, the pump 4 and the power supply unit 5 are detachable from the upper part 24. Specifically, the pump 4 and the power supply unit 5 can be mounted inside the upper part by locking them to the inner surface of the upper part 24, and the pump 4 and the power supply unit 5 can be removed from inside the upper part by releasing the lock.

[0079] The liquid absorption section 6 is located at the lower end of the housing 2 and is a hollow cylindrical shape capable of absorbing liquid from the outside to the inside, housing the filter 3 inside. The liquid absorption section 6 also has multiple liquid absorption holes 62b that extend upward from the lower end and communicate the inside and outside. In this embodiment, the liquid absorption section 6 is the portion from the lower end of the lower side section 23 to the middle in the vertical direction. Furthermore, the liquid absorption section 6 is located below the upstream filter housing section 25.

[0080] The discharge section 7 is a cylindrical body provided spaced above the absorption section 6. In this embodiment, the discharge section 7 is positioned so as to overlap with the absorption section 6 in the horizontal direction. The discharge section 7 also has a discharge hole 71a that penetrates radially through its outer surface. The discharge hole 71a is a hole whose circumferential length is longer than its vertical length, and it extends along the circumferential direction. Furthermore, in this embodiment, the discharge section 7 is provided at the upper end of the lower section 23 and is located above the lower end of the downstream filter housing section 26.

[0081] The rising section 8 is a cylindrical body extending vertically, connecting the upper end of the liquid absorption section 6 and the lower end of the liquid discharge section 7. In this embodiment, it is a portion that extends continuously from the lower end of the lower side section 23 to the upper end of the upper side section 24. The rising section 8 extends vertically with a constant outer diameter.

[0082] The filter 3 comprises an upstream filter section 34 that filters the liquid drawn in from the suction section 6 upstream of the pump 4, and a downstream filter section 35 that filters the liquid sent from the pump. In this embodiment, the configuration of the upstream filter section 34 and the downstream filter section 35 is the same. Specifically, the upstream filter section 34 and the downstream filter section 35 are ceramic filters and are configured to filter the liquid passing through them. The upstream filter section 34 is housed in the upstream filter housing section 25, and the downstream filter section 35 is housed in the downstream filter housing section 26.

[0083] The upstream filter section 34 and the upstream filter housing section 25 are configured such that the liquid drawn in from the liquid absorption section 6 and supplied to the upstream filter housing section 25 can flow to the liquid absorption cylinder 27.

[0084] The downstream filter section 35 and the downstream filter housing section 26 are configured such that the liquid supplied from the discharge cylinder 28 to the downstream filter housing section 26 flows to the lower end of the downstream filter housing section 26, and then flows to the discharge section 7 located above the lower end of the downstream filter housing section 26. Specifically, the downstream filter section 35 and the downstream filter housing section 26 are partitioned internally, forming a flow path from the discharge cylinder 28 to the lower end of the downstream filter housing section 26 and a flow path from the downstream filter housing section 26 to the discharge section 7.

[0085] The pump 4 is located inside the riser section 8 and is configured to deliver liquid from inside the suction section 6 to the discharge section 7. In this embodiment, the pump 4 is located inside the upper section 24. Specifically, the pump 4 comprises a pump body section 41 that draws liquid from inside the suction section 6 and delivers the drawn liquid, and a switch 44 for switching the operating state of the pump body section 41.

[0086] The pump body 41 comprises a liquid intake port 411 for drawing in liquid, a liquid discharge port 412 for sending liquid, and a drive unit 413. The drive unit 413 applies pressure to the liquid drawn in from the liquid intake port 411 and sends it to the liquid discharge port 412. In this embodiment, both the liquid intake port 411 and the liquid discharge port 412 are tubular bodies extending downward from the drive unit 413. The liquid intake port 411 is connected to the liquid intake cylinder 27 and is configured to draw up liquid that has been drawn in from the liquid intake section 6 via the liquid intake cylinder 27 and filtered by the upstream filter section 34. The liquid discharge port 412 is a tubular body connected to the discharge cylinder 28. The liquid sent from the liquid discharge port 412 to the discharge cylinder 28 passes through the downstream filter section 35 due to the pressure of the liquid being sent and is sent to the discharge section 7. In addition, the drive unit 413 in this embodiment is driven by electricity.

[0087] Switch 44 is operable from outside the housing 2 and is used to turn the operation of the pump body 41 ON or OFF. In this embodiment, switch 44 is a push button located on the top of the housing 2.

[0088] The power supply unit 5 is a section where a battery can be installed to supply power to the pump 4 body, and is configured to supply power to the pump 4 body from the installed battery. The power supply unit 5 is positioned above the pump 4 body, aligned vertically. In addition, a primary battery can be installed in the power supply unit 5 of this embodiment.

[0089] As described above, the lower part 23 and the filter 3 housed in the lower part 23 of this embodiment are a filter cartridge F that has the function of filtering liquid, and the upper part 24, and the pump 4 and power supply unit 5 housed in the upper part 24 are a liquid delivery unit P that has the function of delivering liquid. Since the lower part 23 and the upper part 24 are detachable, for example, if the filter 3 deteriorates, the entire filter cartridge F can be replaced, and if the pump 4 malfunctions, the entire liquid delivery unit P can be replaced. Therefore, maintenance such as when the filter 3 deteriorates or the pump 4 malfunctions can be easily performed.

[0090] In the discharge unit 1 configured as described above, the liquid absorbed from the suction section 6 is discharged from the discharge section 7 through the flow path shown in Figure 13. Specifically, the liquid absorbed from the suction section 6 is drawn up by the drive of the pump 4, passes through the upstream filter section 34 and the suction cylinder 27 to reach the pump 4, is pumped under pressure from the pump 4, and is discharged from the discharge section 7 through the discharge cylinder 28 and the downstream filter section 35.

[0091] Although embodiments of the present invention have been described above with reference to one example, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

[0092] For example, the filter 3 was described using the case where it comprises multiple cylindrical filtration members 321, but it is not limited to this configuration. For example, it can also be configured with a single plate-shaped filtration member 321. Also, the filter 3 was described using the case where it comprises a pre-filter section 31 and a main filter section 32, but it is not limited to this configuration. It can also be configured without a pre-filter section 31. Furthermore, even when a pre-filter section 31 is included, it can be configured to have a pre-filter section 31 with the same performance as the main filter section 32.

[0093] Furthermore, although the pump 4 was described using the example of being powered by a battery installed in the power supply unit 5, the configuration is not limited to this, and it can also be powered by an external power source. Also, even when powered by a battery, various types of batteries such as primary batteries and secondary batteries can be used.

[0094] Furthermore, although the case where the liquid absorption holes 62b are formed on the side surface of the liquid absorption section 6 has been described, the configuration is not limited to this, and they can also be formed on the upper surface of the liquid absorption section 6. In this configuration, it is possible to prevent the liquid absorption holes 62b from being blocked by irregularities at the installation site. Alternatively, the liquid absorption holes 62b can be formed on the lower surface of the liquid absorption section 6. In this configuration, liquid can be reliably absorbed through the liquid absorption holes 62b even when the liquid source is shallow.

[0095] Furthermore, the shape of the housing 2 is not limited to the shape of each embodiment. For example, the liquid absorption section 6 and the rising section 8 can be formed in a columnar shape that extends continuously in the vertical direction, and the discharge section 7 can be configured as a tubular body that extends radially outward from the upper end of the rising section 8. [Explanation of Symbols]

[0096] 1...Discharge unit, 2...Housing, 21...Housing base, 22...Housing lid, 23...Lower part, 24...Upper part, 25...Upstream filter housing, 26...Downstream filter housing, 27...Suction cylinder, 28...Discharge cylinder, 3...Filter, 31...Pre-filter section, 311...First filter section, 312...Second filter section, 32...Main filter section, 321...Filtration member, 322...Filter support section, 33...Temporary housing section, 331...Housing body section, 332...Discharge section, 34...Upstream filter section, 35...Downstream filter section, 4...Pump, 41...Pump body section, 411...Suction port, 412...Discharge port, 413...Drive unit, 42 ...Liquid guide section, 421...Discharge liquid guide section, 422...Liquid guide body section, 43...Pump control section, 431...Sensor section, 44...Switch, 5...Power supply section, 6...Liquid suction section, 6a...Filter housing space, 61...Top plate section, 62...Side plate section, 62a...Liquid suction groove, 62b...Liquid suction hole, 63...Bottom plate section, 631...Bottom plate body, 632...Elastic ring, 7...Discharge section, 71...Discharge body section, 71a...Discharge hole, 71b...Exposed hole, 72...Discharge connection section, 721...Insertion section, 722...Liquid passage section, 8...Rising section, 81...Upper cylinder section, 811...Inclined section, 812...Straight section, 82...Lower cylinder section, F...Filter cartridge, P...Liquid delivery unit

Claims

1. It comprises a housing, a pump, and a filter. The housing comprises a liquid absorption section immersed in a liquid source, a liquid discharge section positioned above and spaced apart from the liquid absorption section, and a rising section formed at least from the liquid absorption section to the liquid discharge section. The aforementioned liquid absorption section has a liquid absorption hole formed therein for drawing in the liquid from the liquid source. The aforementioned spewing section has a spewing hole for spewing liquid. Inside the housing, a flow path is formed that extends from the liquid intake hole to the liquid discharge hole via the rising portion. The pump is housed within the housing and is configured to deliver liquid from the suction port to the discharge port. The aforementioned filter is housed within the housing and configured to filter the liquid sent from the suction port to the discharge port, in a discharge unit.

2. The aforementioned liquid-absorbing portion is plate-shaped, extending in a planar direction perpendicular to the vertical direction. The discharge unit according to claim 1, wherein the rising portion is configured to be located within the range of the liquid absorption portion in the planar direction.

3. The discharge unit according to claim 2, wherein the filter is plate-shaped and is disposed inside the liquid absorption section.

4. The housing is columnar in shape with an outer diameter that is approximately constant. The liquid absorption hole is located at the lower end of the columnar shape, The discharge unit according to claim 1, wherein the discharge hole is located at the upper end of the columnar shape.

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