WO2008035409A1

WO2008035409A1 - Intermittent water supply device

Info

Publication number: WO2008035409A1
Application number: PCT/JP2006/318627
Authority: WO
Inventors: Suikou Tanaka; Rukou Tanaka; Hideho Tanaka
Original assignee: Garden Nigachi Co., Ltd.
Priority date: 2006-09-20
Filing date: 2006-09-20
Publication date: 2008-03-27

Abstract

[PROBLEMS] An intermittent water supply device having a smaller size and higher operational reliability than conventional water level adjustment devices. [MEANS FOR SOLVING PROBLEMS] The intermittent water supply device is made up of an airtight case (60), a first float section (70) provided outside the airtight case (60) and opening and closing an air flow hole (66) in the airtight case (60), and a second float section (80) provided inside the airtight case (60) and opening and closing a water inlet opening (62a). The airtight case (60) is partitioned by a partition wall (64) into a float chamber (60a) having a large inner volume and an air chamber (60b) having a small inner volume, where the float chamber (60a) has a cubic shape whose lower face is open and whose upper face and side faces are air-tightly closed. An air flow groove (60c), having a predetermined short length formed from a lower surface, is provided in a lower surface of the partition wall (64) between an outer surface wall (63) on one side of the float chamber (60a) of the airtight case (60) and the float chamber (60a). An air flow groove (60d), slightly shorter than the partition wall (64), is formed in a lower surface of an outer surface wall (65), on one side of the air chamber (60b). The air flow hole (66) is formed extended over the float chamber (60a) and the air chamber (60b).

Description

Specification

Intermittent water recuperator

Technical field

[0001] The present invention relates to an intermittent water replenisher for performing optimum automatic irrigation management according to indoor and outdoor environments.

Background art

[0002] Conventionally, improvement of the environment by plant cultivation has been proposed, but in particular, the rooftop or wall green wall that is in a severe environment is stored by the evaporative heat generated by the plant's original C02 fixation and transpiration. It is attracting attention nationwide as a measure to mitigate the heat island phenomenon in urban areas because it suppresses the rise in temperature. For this reason, various inventions for rooftop greening and wall greening have been proposed. In particular, various proposals have been made regarding irrigation of rooftops, walls and roofs that are easily dried by sunshine, and water retention media.

[0003] A conventional irrigation system electrically controls a water supply / collection pump and an open / close electromagnetic plug, and in particular, water supply is operated at predetermined time intervals.

[0004] The growth environment of plants varies greatly depending on the season and the weather of the day, and the amount of irrigation consumed depends on the growth status of the vegetated plants from the buds to the overgrown state. to differ greatly. Furthermore, on the building roof, the change in the environment changes more greatly than the environment in contact with the ground. For this reason, in the rooftop greenery, the conventional automatic water supply system at regular intervals has caused excessive water supply or water supply shortage, and has not been able to supply water suitable for original plant growth. For this reason, irrigation management has become an important issue for solving the problem of rooftop greenery.

[0005] Patent Document 1 proposed by the present inventors includes a water level adjusting device capable of adjusting water supply to a plant plaster pot or a planter, a water receiver using the water level adjusting device, and one outside the plan. It is disclosed.

FIG. 7 is a cross-sectional view showing the structure of the water level adjusting device 1 of Patent Document 1. The water level adjusting device 1 has an air hole 17 on the upper wall of the case 10 whose bottom surface is open, and the floating force is increased by the rising of the water level. Mounting to open and close In the case 10, a second float 30 that moves up and down due to a change in the water level is provided so as to open and close the water injection port 16 connected to the water supply pipe. When the water level adjusting device 1 reaches the irrigation start water level W3, the second float 30 tilts as shown by the inclination line of the start of water injection, and when the water inlet 16 is opened to inject water, and the maximum water level W2 is reached, Close water inlet 16a. At this time, the second float 30 floats up due to the water level and closes the permanent plug.When the water level drops as the irrigated plant sucks up and consumes water, the first float 20 falls and the air hole 17 The closed case 10 is depressurized and the second float 30 is prevented from falling with the water level. When the water level drops below the height of the ventilation groove 18 provided on the side wall of the case 10 (irrigation start water level W3), the decompressed state in the case 10 is released by the air flowing from the ventilation groove 18, and the second The buoy 30 is tilted to the tilt position at the start of water injection, and water injection is started.

[0007] If the water level adjusting device 1 is provided at the bottom of the water receiver and connected to the upper water storage tank, the water level adjusting device 1 is intermittently adapted to the water consumption of the plant without using power such as electric control or a pump. Irrigation can be performed. Plant power of flowerpots placed in a water receiver Can consume water according to the season and the weather, and can completely consume it for power irrigation. By repeating this, water and air were alternately supplied to the planting soil, and the soil activity and plant growth conditions were ideal. For this reason, it has been desired to apply it to irrigation management on rooftops and wall greening.

[0008] In applying the water level adjusting apparatus 1 of the present invention, it is required that there is no failure in long-term operation on a roof or on a place where maintenance of the wall surface is difficult, and a narrow wall planting container attached to a wall surface or the like There is a need for an intermittent rehydrator that can be accommodated in the room and has high reliability! However, since the interior of the second float, which is difficult to miniaturize due to the volume of the first float and the second float that sense the water level, is hollow, there was a problem that the operating water level varied due to fluctuations in temperature and pressure.

Patent Document 1: Japanese Patent Application Laid-Open No. 2002-345342 (Pages 2, 3, 4, 1)

Disclosure of the invention

Problems to be solved by the invention

In order to solve the above-described problems, an object of the present invention is to provide an intermittent water replenisher that is smaller and has higher operational reliability than a conventional water level adjustment device. [0011] Further, it is an object of the present invention to control the irrigation cycle so that it is performed along the cycle in which all the irrigated plant power irrigation is consumed and the cultured soil is dried and dried.

Means for solving the problem

[0012] The intermittent rehydrator of the present invention includes an airtight case, a first floating portion that is provided outside the airtight case and opens and closes a vent hole of the airtight case, and a water supply port that is provided inside the airtight case. An intermittent water replenisher composed of a second floating part for opening and closing

In the airtight case, the lower surface of the cube is open, the upper surface and side surfaces are hermetically closed, and the interior is partitioned by a partition into two chambers, a large volume floating chamber and a small volume air chamber. The partition wall between the outer side wall on one side and the floating chamber is a predetermined dimension shorter than the lower surface, and a ventilation groove is formed on the lower surface. The outer side wall on one side of the air chamber is slightly shorter than the partition wall, and the ventilation groove is formed on the lower surface. The lower end force of the outer wall of the floating chamber A water supply pipe connection part provided downward on a horizontal plate extending outside, and a fitting shaft that rotatably holds the second floating part at the tip of the horizontal plate, opposite side The air chamber outer wall is provided with a fitting shaft that rotatably holds the first floating portion, and further provided with a vent hole that is opened on the upper surface of the partition wall of the partition so as to straddle the two chambers of the floating chamber and the air chamber, The first floating portion includes a connecting portion rotatably supported by a fitting shaft of the outer wall of the air chamber, and the airtight The outer flange that covers the upper surface of the casing and extends to the upper part of the horizontal plate on the opposite side, the vent plug that is provided at the position facing the vent hole of the outer flange, and the left and right sides of the tip of the flange A buoyant body housed therein and a buoyant body housed therein, wherein the second buoyant part is connected to a coupling part rotatably supported by the fitting shaft, and is airtight An inner flange extending into the floating chamber of the case, a water supply plug provided at a position of the inner flange facing the water supply port, a tip of the inner flange extending into the floating chamber, and a holding portion provided on the left and right Further, the buoyancy body strength held by the holding portion is constituted.

[0013] Further, the airtight case is formed with a high rear in accordance with a predetermined angle that rotates when the second floating portion is lifted by buoyancy, and the first floating portion is also adjusted to the height of the airtight case. The outer flange portion extending the connecting portion force is formed to be lower toward the front at a predetermined angle so as to be parallel to the upper surface of the airtight case, and the vent plug is formed to contact the vent hole. To do.

[0014] Further, the buoyancy body is a polyurethane polyurethane resin cube. [0015] In addition, the water supply plug and the vent plug are fitted with a cylindrical plug having a weather-resistant elastic member force in a mounting hole provided in the inner flange portion or the outer flange portion. The effect of the invention

[0016] According to the intermittent water supplement of the present invention, the front and rear dimensions are shorter than the conventional one because the water supply port is disposed downward with the upper force and the volume of the floating body of the first floating portion can be reduced. Since the volume of the floating body of the floating portion is small, the left and right dimensions can be formed shorter than before. For this reason, the whole apparatus can be reduced in size.

[0017] In addition, the airtight case is divided into a floating chamber and an air chamber, and air vents are provided across the two chambers to suppress the rise of the second floating portion during water supply due to the air pressure in each chamber. At the same time, when the irrigation start water level is reached, the outside air flowing into the air chamber is allowed to flow into the floating chamber through the vent hole, and the release of the floating body descending suppression state due to the reduced pressure state is surely cancelled. For this reason, in the conventional apparatus, it is possible to eliminate the problem that it is uncertain that the decompressed state is released when the air flows only through the ventilation loci.

[0018] Conventionally, since the inside of the second float for operating the plug of the water supply port was a hollow, the operation was unstable. In the present invention, since the buoyant body is a solid such as a foam, the buoyancy body can be operated in conjunction with the reduction of the internal air due to the water pressure and the change of the water level that is not affected by the atmospheric pressure or temperature.

BEST MODE FOR CARRYING OUT THE INVENTION

[0019] An embodiment of the intermittent water-retaining device of the present invention will be explained in detail based on the drawings. FIG. 1 is a view showing an intermittent water replenisher according to the present invention, where (a) is a front view and (b) is a plan view.

[0020] The intermittent water replenisher 50 shown in FIG. 1 (a) includes an airtight case 60, a first floating portion 70 that is provided outside the airtight case 60 and opens and closes the air holes 66 of the airtight case 60, and The airtight case 60 includes a second floating portion 80 that opens and closes the water supply port 62a.

[0021] The airtight case 60 has a cubic lower surface open, the upper surface and side surfaces are hermetically closed, and the inside is partitioned by a partition wall 64 into two chambers: a large volume floating chamber 60a and a small volume air chamber 60b. Being!

[0022] In addition, the outer side wall 63 on one side of the floating chamber 60a of the airtight case 60 and the partition wall 64 between the floating chamber 60a and the lower surface have a predetermined dimension shorter than the lower surface, and a ventilation groove 60c is formed on the lower surface. one The outer side wall 65 on the side is slightly shorter than the partition wall 64, and a ventilation groove 60d is formed on the lower surface.

[0023] In this embodiment, the outer surface wall 63 and the partition wall 64 are formed so that the ventilation groove 60c has a height of 5 mm from the lower surface, and the ventilation groove 60d has a lower surface force of 6 mm. Thus, the outer side wall 65 is formed.

[0024] Further, a horizontal plate 61 extending to the outside is provided at the lower end of the outer surface wall 63 of the floating chamber 60a, and a water supply pipe connecting portion 62 provided downward is provided on the horizontal plate 61.

[0025] The water supply pipe connecting portion 62 is a member that receives irrigation supplied from a tank for irrigation (not shown) at a constant water pressure due to a drop or the like by connecting the water supply pipe, and has a pipe receiver. It is bent into an inverted L shape and is formed to rise from the horizontal plate 61. The lower end of the water supply pipe connection portion is a water supply port 62a opened at the bottom of the horizontal plate 61.

Furthermore, a fitting shaft 67 that rotatably holds the second floating portion 80 is provided at the tip of the horizontal plate 61. The fitting shaft 67 is fitted with the connecting hole of the connecting portion 81 of the second floating portion 80, and the second floating portion 80 rotates up and down around the fitting shaft 67 as the water level rises and falls.

On the other hand, fitting shafts 68 for rotatably holding the first floating portion 70 are provided on the left and right air chamber outer walls on the opposite side. The fitting shaft 68 is fitted with the connecting hole of the connecting portion 71 of the first floating portion 70, and the first floating portion 70 rotates up and down around the fitting shaft 68 as the water level rises and falls.

[0028] On the upper surface (ceiling portion) of the airtight case 60, a vent hole 66 is provided at a position corresponding to the upper surface of the partition wall 64 so as to straddle the two chambers of the floating chamber 60a and the air chamber 60b. In other words, the center of the vent hole 66 is on the center line of the partition wall 64, and the diameter of the hole is larger than the width of the partition wall 64, and communicates with both the floating chamber 60a and the air chamber 60b. It is supposed to be a structure.

[0029] In this embodiment, the partition wall 64 has a width of lmm and the vent hole 66 has a diameter of 2mm.

[0030] The hermetic case 60 is formed with a high rear at a predetermined angle that rotates when the second floating part 80 is lifted by buoyancy. In this embodiment, the rear height is 25 mm higher than the front height 25 mm.

[0031] Further, the first floating portion 70 extends from the connecting portion 71 in accordance with the height of the airtight case 60. The outer casing 72 is formed to be lower toward the front by a predetermined angle so as to be parallel to the upper surface of the airtight case 60.

[0032] Next, the first floating portion 70 will be described.

[0033] The first floating portion 70 is provided on the upper surface of the airtight case 60 provided to the left and right connecting portions 71 rotatably supported by the fitting shaft 68 of the outer wall of the air chamber, and the safety of the connecting portion 71. It is composed of an outer flange 72 extending to the upper part of the horizontal plate 61 on the opposite side of the covering.

[0034] The outer collar portion 72 is provided with a ventilation plug 73 at a position facing the vent 66, and two buoyant body accommodating portions 74 are provided on the left and right of the distal end portion of the outer collar portion 72 downward. The buoyancy body 75 is accommodated in the storage portion 74 and floated. The vent plug 73 is fitted with a cylindrical plug having a weather-resistant elastic member force in a mounting hole provided in the outer flange portion.

[0035] The first floating portion 70 is caused by the buoyancy of the buoyant body 75 floating in the water when irrigation is started and the bottom water level of the planting container in which the intermittent water refiller of the present invention is installed rises. The outer flange portion 72 is lifted, pivoted upward about the fitting shaft 68, and provided at a position facing the vent hole 66. The vent plug 73 that has blocked the vent hole 66 moves upward and passes through. The air holes 66 are opened so that the air in the floating chamber 60a and the air chamber 60b of the airtight case 60 can be discharged upward (outside).

This movement is due to the balance between the weight of the first floating portion 70 and the volume of the storage portion 74 in which the underwater buoyant body 75 is stored, so the vent 66 is not opened until the water level reaches a certain level. While the vent hole 66 is closed, the second floating portion 80 is hindered by the air pressure in the floating chamber 60a, and the rise due to buoyancy is restricted.

[0037] Next, the second floating portion 80 will be described.

[0038] The second floating portion 80 includes a connecting portion 81 rotatably supported by the fitting shaft 67 at the front end portion of the horizontal plate 61 extending forward of the airtight case 60, and a floating chamber 60a of the airtight case 60. A water supply plug 83 is provided at a position facing the water supply port 62a that opens to the bottom surface of the horizontal plate 61. The water supply plug 83 is formed by fitting a cylindrical plug having a weather-resistant elastic member force into a mounting hole provided in the inner flange portion.

[0039] The inner flange portion 82 extending into the floating chamber 60a extends downward to hold the buoyant body 85. Holding parts 84 are provided on the front, left and right.

In this embodiment, in order to hold the buoyant body 85 of the foamed synthetic resin, the holding portion 84 is provided with a protrusion 84a. In addition, a protrusion 84b that pierces and holds the buoyancy body is provided on the lower surface of the inner flange portion 82 with which the upper surface of the buoyancy body 85 abuts.

[0041] As shown in FIG. 1 (a), the inner flange portion 82 of the second floating portion 80 is an inner flange portion with the connecting portion 81 as an axis when the buoyant body 85 is attached to the bottom surface. The front end is formed at an angle facing downward, and the water supply plug 83 at a position facing the water supply port 62a is separated from the water supply port 62a downward and the water supply port 62a is opened. For this reason, the inner flange extending to the floating chamber 60a is raised with an angle. When the irrigation water level rises, the upper surface of the inner collar holding the buoyant body 85 rotates until it becomes parallel to the ceiling of the floating chamber 60a.

[0042] Fig. 1 (b) is a plan view of the intermittent water replenisher of the present invention. In this figure, the first floating part 70 is arranged on the upper part of the airtight case 60. The airtight case 60 has a horizontal plate 61 provided in front, a water supply pipe connecting part 62 where the force rises, and a horizontal plate 61. The fitting shaft 67 provided on the left and right ends of the plate 61 is shown, and the rear side wall 65 of the air chamber 60b is shown on the rear side.

[0043] The first floating portion 70 has an outer flange portion 72 extending so as to be parallel to the upper surface of the airtight case 60, with the upper end force of the connecting portion 71 connected to the fitting shaft 68 having an angle. Two hollow storage portions 74 provided downward on the left and right of the tip of the front end and a buoyancy body 75 inserted into the storage portion 74 are shown.

[0044] Next, the airtight case 60 will be explained in more detail with reference to FIG. Figure 2 shows the structure of the airtight case, where (a) is a front view and (b) is a plan view.

[0045] The same structure 'function as in the description of FIG.

As shown in FIG. 2 (a), the horizontal plate 61 is provided so that the lower end of the outer surface wall 63 of the airtight case 60, that is, the upper force of the ventilation groove 60c also extends horizontally.

[0047] On the upper surface of the horizontal plate 61, a reinforcing wall 61b extending between the outer side wall 63 of the airtight case 60 and the water supply pipe connecting portion 62, and reinforcing walls 61a provided at both ends of the horizontal plate 61 are provided. It is reinforced so that it can be securely connected and the second floating part 80 can be supported.

[0048] The left and right side walls 69 of the confidential case 60 have a force that extends to the bottom surface. The partition wall 64 between the front outer surface wall 63, where the horizontal plate 61 extends, and the floating chamber 60a is formed short, and is between the bottom surface. Ventilation groove 6 Oc is open.

[0049] On the other hand, the outer side wall 65 outside the air chamber 60b is formed to be slightly shorter, wider than the ventilation groove 60c, and high from the bottom surface to be the ventilation groove 60d.

[0050] In this embodiment, the height of the ventilation groove 60c is 5 mm, the height of the ventilation groove 60d is 6 mm, and a difference of lmm is provided, so that the water level raised by irrigation by water supply is consumed by the plant, and the water level decreases. When the opening force of the ventilation groove 60d is first discharged, the water confined in the air chamber 60b is discharged to the outside and exchanged with the outside air, and then the water level drops below the opening of the ventilation groove 60c. The water trapped in the water is discharged to the outside and exchanged with the outside air, and the water level in the floating chamber 60a is lowered to the same position as the water receiver outside the water level adjusting device.

[0051] In addition, the vent hole 66 opened in the upper surface (ceiling part) of the airtight case 60 is centered on the center line of the partition wall 64, and the diameter of the hole is larger than the width of the partition wall 64, and the floating chamber 60a and the air chamber 60b communicate with both the chambers. Therefore, the outside air flowing into the air chamber 6Oa from the vent groove 60d passes through the gap in the vent hole 66 and also enters the floating chamber 60a. Because it flows in, water that has been trapped in the interior is not discharged smoothly, so there is no problem that the operation of starting water supply (descent of the second float) is delayed.

FIG. 2 (b) is a plan view of the airtight case 60. It is shown that a vent hole 66 is formed on the center line of the partition wall 64 and is structured to communicate with both the floating chamber 60a and the air chamber 60b!

FIG. 3 is a view showing the first floating portion 70, where (a) is a front view and (b) is a side view.

[0054] As shown in Fig. 3 (a), a connecting hole 71a is formed at the lower end of the connecting portion 71 so as to fit into the fitting shaft 68 of the airtight case 60 so as to rotate. The buoyancy body 75 housed in the storage section 74 formed on the left and right of the distal end of the 72 lifts when the water level rises, so that the vent plug 73 at the base of the outer collar section 72 is lifted upward to allow the airtight case 60 to pass through. When the air hole 66 is opened and the water level is below a certain level, the air hole 66 is closed.

[0055] The first floating portion 70 controls the operation of the second floating portion 80 provided in the airtight case by opening and closing the air vent 66 of the airtight case 60, and the air hole 66 is closed. During this time, the air inside the airtight case 60 prevents the water level in the confidential case from rising, the water level outside the airtight case 60 reaches a certain level, the vent 66 is opened, and the air inside is discharged. As a result, the water level in the airtight case rises, the second float 80 rises, and the water supply port 62a is closed.

FIG. 4 is a plan view of the second floating portion 80. The connecting portion 81 is formed with a connecting hole 81a for being rotatably fitted to the fitting shaft 67 of the airtight case 60, and is held by the holding portion 84 provided on the front portion and the left and right portions of the inner collar portion 82. When the buoyant body 85 is lifted due to the rise of the water level, the water supply plug 83 provided upward at the base of the inner brim part 82 is moved upward, the water supply port 62a provided in the airtight case 60 is closed, and the water supply is stopped. Let

[0057] Note that the buoyancy body 85 is made of foamed synthetic resin or the like, and is fixed by the protrusions 84a and 84b provided on the holding portion 84.

[0058] FIG. 5 is a diagram showing an operation state of the intermittent water replenisher 50 of the present invention, where (a) is a cross-sectional view showing the operation in the water supply start state, and (b) is a cross-sectional view showing the operation in the water supply stop state It is.

[0059] FIG. 5 (a) shows a case where the irrigated water level drops to the state of W3. That is, with the water level W3 at the same height as the ventilation groove 60c, the water confined in the air chamber 60b is discharged from the ventilation groove 60d and the outside air flows in as shown by the arrow A and passes through. The pore force of the pore 66 also flows into the floating chamber 60a, and the trapped water and the lower force in the floating chamber 60a are discharged. For this reason, the water level in the floating chamber is lowered to W3, the second floating portion 80 is lowered, the water supply plug 83 is separated from the water supply port 62a, and water with high water pressure flows from the water supply pipe connection portion 62.

[0060] FIG. 5 (b) shows the case where the irrigated water level rises to W2. At this time, the buoyant body 74 of the first buoyancy part 70 rises, and the vent plug 73 is separated from the vent hole 66, and the air in the float chamber 60a and the air chamber 60b flows out from the vent hole 66 as indicated by the arrow B. The water blocked by the air flows into the floating chamber 60a and the air chamber 60b and fills up to the same height as the external water level W2. For this reason, the buoyancy body 85 of the second floating portion 80 is lifted, and the water supply plug 83 provided at the tip of the inner collar portion 82 closes the water supply port 62a to stop water supply.

[0061] Fig. 6 shows the intermittent water replenisher of the present invention housed in a dustproof case, wherein (a) is a front view and (b) is a plan view.

In FIG. 6, 51 is a dustproof case, and 5 la is a pipe hole through which the water supply pipe 52 is passed.

The intermittent water replenisher 50 is mounted on a planter, pallet, pot bottom, etc., but during the cultivation, it is hardly moved or cleaned. And prevent dirt from entering from the outside. It is desirable to cover the dustproof case 51 for the purpose.

[0063] According to the intermittent rehydrator of the present invention, water and air are alternately supplied according to changes in plant type, size, and weather conditions, and a drop of water is also discharged. The plant grows without stress because it can be irrigated without power and can be operated accurately for 24 hours. Plants that are stressful produce tremendous growth.

[0064] In places that are not exposed to rainwater such as verandas, simply place all existing pots on the water supply stand for plant cultivation, and water will be supplied from the bottom hole, making it easy to use as a bottom water supply pot. Can do. If it is installed under the planting, it can be prevented from withering due to drying.

[0065] Further, by attaching to a noging container using space, it is possible to eliminate the need for irrigation and to eliminate the water stress of the plant, so that it is possible to grow without replanting.

[0066] If used as a container for rooftop green rice cake, it can be a plant cultivation stand that repeats germination, growth, and overgrowth of all plants. It is lightweight without using soil, and can produce a large amount of evapotranspiration from the leaves of the plant and the cultivation table.

[0067] Further, by reducing the size of the intermittent water replenisher, a variable plant cultivation pot corresponding to the angle of the inclined roof can be realized. According to this, a large amount of water can be transpired through the leaves of any plant. However, it is possible to prevent wasteful drainage of water. A flower-covered roof can be realized.

[0068] Further, the downsizing of the intermittent water replenisher enables a planting case that can be attached to a thin wall surface, and even a plant with a large amount of transpiration can be green on the wall surface.

[0069] When realizing a biotope that reproduces a natural ecosystem in the form of an artificial ground, it can be easily realized by using the intermittent rehydrator of the present invention.

[0070] By using the intermittent water replenisher of the present invention, it is possible to irrigate plants that can cope with ever-changing weather, and rooftops, sloping roofs, wall surfaces, pedestrian bridges, street lights, pavement surfaces, and central separation. Even in places with severe environmental conditions such as belts, all plants can be selected.

Brief Description of Drawings

[0071] FIG. 1 is a view showing an intermittent water replenisher of the present invention, where (a) is a front view and (b) is a plan view. FIG. 2 shows the structure of an airtight case, (a) is a front view and (b) is a plan view.

圆 3] The structure of the first floating part is shown, (a) is a front view, and (b) is a side view.

4] A plan view showing the structure of the second floating portion.

FIG. 5 is a diagram showing an operation state of the intermittent water replenisher 50 of the present invention, where (a) is a cross-sectional view showing the operation in the water supply start state, and (b) is a cross-sectional view showing the operation in the water supply stop state.

[6] The intermittent water-retaining device of the present invention housed in a case, (a) is a front view and (b) is a plan view.

[7] It is a cross-sectional view showing the structure of a conventional water level adjusting device.

Explanation of symbols

1 Water level adjuster

10 cases

17 Air hole

18 Ventilation groove

20 First float

24 Air hole sealing plug

30 Second float

34 Water tap

W1 1st water level

W2 Second water level

W3 Watering start water level

G Horizontal line, horizontal bottom

50 intermittent water recuperator

51 Dust-proof case

51a Pipe hole

52 Water supply pipe

60 airtight case

60a Floating chamber

60b c Ventilation groove

d Ventilation groove

Horizontal plate Water supply pipe connection a Water supply port

Outer side wall Partition wall Outer side wall Ventilation fitting shaft Fitting shaft Side wall

1st floating part Connection part a Connection hole

Outer casing Ventilation plug Storage part Buoyant body Second floating part Connection part a Connection hole

Inner collar Water supply embolus Holding part a Projection

b Protrusion

Buoyancy body A, B Air flow arrows

Claims

The scope of the claims

[1] It is composed of an airtight case, a first floating portion provided outside the airtight case for opening and closing a vent hole of the airtight case, and a second floating portion provided inside the airtight case for opening and closing the water supply port. It is an intermittent type rehydrator,

In the airtight case, the lower surface of the cube is open, the upper surface and side surfaces are hermetically closed, and the interior is partitioned by a partition into two chambers, a large volume floating chamber and a small volume air chamber. The partition wall between the outer side wall on one side and the floating chamber is a predetermined dimension shorter than the lower surface, and a ventilation groove is formed on the lower surface. The outer side wall on one side of the air chamber is slightly shorter than the partition wall, and the ventilation groove is formed on the lower surface. The lower end force of the outer wall of the floating chamber A water supply pipe connection part provided downward on a horizontal plate extending outside, and a fitting shaft that rotatably holds the second floating part at the tip of the horizontal plate, opposite side A fitting shaft that rotatably holds the first floating portion on the outer wall of the air chamber, and further includes a vent hole that is open on the upper surface of the partition wall of the partition so as to straddle the two chambers of the floating chamber and the air chamber, The first floating portion includes a connecting portion that is rotatably supported by the fitting shaft of the outer wall of the air chamber, and the airtight portion described above. The outer flange that covers the upper surface of the casing and extends to the upper part of the horizontal plate on the opposite side, the vent plug that is provided at the position facing the vent hole of the outer flange, and the left and right sides of the tip of the flange A buoyant body housed therein and the buoyant body housed therein, wherein the second buoyant part is rotatable about the fitted shaft: a connecting part supported An inner flange extending into the floating chamber of the airtight case, a water supply plug provided at a position facing the water supply port of the inner flange, and a tip provided on the left and right sides of the inner flange extending into the floating chamber And a buoyant body strength held by the holding portion.

[2] The airtight case is formed with a high rear in accordance with a predetermined angle that rotates when the second floating part is lifted by buoyancy, and the first floating part is connected to the airtight case according to the height of the airtight case. The outer flange portion extending from the portion is formed to be lowered toward the front by a predetermined angle so as to be parallel to the upper surface of the airtight case so that the vent plug is brought into contact with the vent hole. Item 1 intermittent water replenisher.

[3] The intermittent water retentive device according to claim 1, wherein the buoyancy body is a cube of polyurethane foam resin.

[4] The water supply plug and the vent plug are cylindrical plugs made of an elastic member having weather resistance. The intermittent water-retaining device according to claim 1, wherein the intermittent water-retaining device is fitted in a mounting hole provided in the inner flange portion or the outer flange portion.