A pilot-type unpowered water outlet control device and method

Abstract

This invention provides a pilot-type non-powered water outlet control device and method, including a water storage space, a planting space and a pilot space respectively connected to the top of the water storage space, a water outlet device inside the water storage space, and a liquid outlet pipe connected to the water outlet device in a selectable manner at the bottom of the water storage space; a pilot device is also provided between the pilot space and the water storage space, the pilot device controlling the opening and closing of the water outlet device and the liquid outlet pipe according to the amount of rainwater in the pilot space; the buoyancy of the water in the pilot space drives a float to rise with the liquid surface and lift a lever, which then drives the water outlet device to close through a connecting rod, thereby preventing rainwater from being discharged with the water outlet device during rain and thus preventing effective water storage in the water storage space; achieving non-powered control of the water outlet device without the need for any external force.

Description

Technical Field

[0001] This invention relates to the technical field of water outlet control, and specifically to a pilot-type non-powered water outlet control device. Background Technology

[0002] In existing technologies, non-powered slow-release devices float on the water surface under the buoyancy of the top float. Water enters from the top inlet and exits from the bottom outlet. Larger water impurities are blocked outside the filter screen. Without the need for external force, the water entering the device is controlled by the internal flow control component, which can maintain a slow, uniform, and controllable flow rate from the water storage facility while the water level continues to drop.

[0003] However, due to the lack of an effective water discharge control device, the existing non-powered slow-release device will slowly discharge rainwater after water begins to enter the storage facility. Rainwater is difficult to effectively store in the storage space, and water inflow and drainage occur simultaneously. This leads to two problems: firstly, it is not conducive to the accurate realization of the system's delayed regulation and storage function (storing during water inflow or rainfall, and slowly releasing when water inflow ceases or rainfall stops); secondly, the disturbance caused by the inflow is not conducive to the sedimentation, purification, and effective utilization of rainwater in the storage facility.

[0004] Therefore, there is an urgent need to provide a water outlet control device to solve the defects and shortcomings of the existing technology. Summary of the Invention

[0005] In order to overcome the defects and shortcomings of the existing technology, the present invention provides a pilot-type non-powered water discharge control device.

[0006] The specific solution provided by this invention is as follows:

[0007] A pilot-type non-powered water outlet control device includes a water storage space, a planting space and a pilot space respectively connected to the top of the water storage space, a water outlet device inside the water storage space, and an overflow pipe and a liquid outlet pipe selectively connected to the water outlet device at the bottom of the water storage space; characterized in that: a pilot device is further provided between the pilot space and the water storage space.

[0008] When the water level inside the pilot space is at the first height, the water outlet device is connected to the liquid outlet pipe, and the water stored inside the pilot space slowly enters the water storage space through the bottom water passage device.

[0009] When the water level inside the pilot space rises to the second height, the water outlet device and the liquid outlet pipe are disconnected, and the water stored inside the pilot space slowly enters the water storage space through the bottom water passage device.

[0010] When the water level inside the pilot space rises to the third height, the water outlet device connects with the liquid outlet pipe, and the water stored inside the pilot space enters the water storage space through the side wall through-hole.

[0011] As a further preferred embodiment of the present invention, the pilot device includes a housing extending into the pilot space and a pull rod capable of moving up and down within the housing. The pull rod extends from the top of the housing and a float is provided below the top of the pull rod. The bottom of the pull rod is connected to one end of a connecting rod, which is hinged to the inside of the housing. The other end of the connecting rod is connected to a plug.

[0012] As a further preferred embodiment of the present invention, the housing includes an upper housing and a lower housing connected to each other, the pull rod is located inside the upper housing and the lower housing, and the connecting rod and the plug are located inside the lower housing.

[0013] As a further preferred embodiment of the present invention, the pull rod extends from the top of the housing and has a first large diameter portion, and the bottom of the pull rod has a second large diameter portion.

[0014] As a further preferred embodiment of the present invention, the connecting rod is configured as an L-shape, the middle part of the connecting rod is hinged to the inside of the lower housing, one end of the connecting rod overlaps the top of the second large diameter part, and the other end is movably connected to the plug body.

[0015] As a further preferred embodiment of the present invention, the float is configured as an annular shape and is fitted over the top outer periphery of the housing.

[0016] As a further preferred embodiment of the present invention, the plug body is a conical plug, and a flexible structure is provided at the end of the conical plug near the water outlet device.

[0017] As a further preferred embodiment of the present invention, a debris trap is provided at the top of the pilot space, and a rain pipe is provided at the top of the debris trap.

[0018] As a further preferred embodiment of the present invention, the water outlet device is selected as a non-powered slow-release device or a water outlet control device with a control valve.

[0019] Furthermore, the present invention also provides a water outlet control method for a pilot-type non-powered water outlet control device, characterized by comprising the following steps:

[0020] 1) Rainwater falls into the pilot space and is stored at the bottom of the pilot space. At this time, the water level inside the pilot space is at the first water level, which can neither float the float nor reach the through hole. The water stored inside the pilot space slowly enters the water storage space through the water circulation device.

[0021] 2) As the water level inside the pilot space gradually rises to the second water level, the water level inside the pilot space can float the float and make it rise synchronously with the water level inside the pilot space until it gradually comes into contact with the pull rod and finally pushes the pull rod up. When the pull rod rises, it drives the connecting rod to rotate counterclockwise, thereby pushing the plug to the left to close the connection between the water outlet device and the liquid outlet pipe. At this time, the water inside the water storage space cannot be discharged through the drain outlet, and the water level inside the water storage space gradually rises.

[0022] 3) When the water level inside the pilot space rises to the third water level at the location of the through hole, the water stored inside the pilot space is discharged into the water storage space through the through hole. As the water level drops, the lifting effect of the float on the pull rod disappears. At the same time as the pull rod drops, the effect on one end of the connecting rod also disappears. The connecting rod rotates clockwise, causing its other end to pull back the plug body to open the connection between the water outlet device and the liquid outlet pipe. At this time, the water stored in the water storage space is finally discharged from the drain outlet through the non-powered slow release device.

[0023] Compared with existing technologies, the technical effects that this invention can achieve include:

[0024] 1) This invention provides a pilot-type non-powered water discharge control device, which uses the buoyancy of water in the pilot space to drive the float to rise with the liquid surface and lift the pull rod, and then drives the water discharge device to close through the connecting rod, thereby preventing rainwater from being discharged with the water discharge device during rain and thus preventing water from being effectively stored in the water storage space.

[0025] 2) This invention provides a pilot-type non-powered water outlet control device, in which the opening and closing control of the water outlet device is achieved entirely by the buoyancy of the water stored in the pilot space, without the need for any external force, thus realizing non-powered control of the water outlet device.

[0026] 3) This invention provides a pilot-type non-powered water discharge control device, which can be combined with a slow-release device for rainwater storage devices on the ground (such as storage flower boxes), or it can be combined with a slow-release device for buried rainwater discharge delay regulation facilities. It has a wide range of applications and is flexible in combination. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the present invention.

[0028] Figure 2 This is a schematic diagram of the structure of the pilot device of the present invention.

[0029] Figure 3 This is a schematic diagram of the water outlet control device of the present invention in its initial state.

[0030] Figure 4 This is a schematic diagram of the water outlet control device of the present invention in the off state.

[0031] Figure 5This is a schematic diagram of the water outlet control device of the present invention in the open state. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] [First Embodiment]

[0036] like Figure 1-4 The first embodiment provided by the present invention is shown, and its specific solution is as follows:

[0037] like Figure 1 The image shows a pilot-type non-powered water outlet control device, which includes a water storage space 3, and a planting space 1 and a pilot space 2 connected to the top of the water storage space 3.

[0038] The planting space 1 is planted with green plants. The bottom of the planting space 1 is filled with pebbles to filter the rainwater falling into the planting space 1. The bottom of the planting space 1 is connected to the water storage space 3 to drain the filtered rainwater into the water storage space 3.

[0039] A debris trap 21 is installed at the top of the pilot space 2, and a rainwater pipe IN is installed at the top of the pilot space 2. Rainwater falling through the rainwater pipe IN enters the debris trap 21 for filtration. The debris trap 21 is filled with pebbles and gravel to prevent large particles such as fallen leaves and branches in the rainwater from entering the interior of the pilot space 2. Several through holes 22 communicating with the water storage space 3 are opened on the side wall of the pilot space 2. Rainwater entering the pilot space 2 enters the water storage space 3 through the through holes 22. A water circulation device 23 communicating with the water storage space 3 is also installed at the bottom of the pilot space 2, so that when the water stored in the pilot space 2 is lower than the position of the through holes 22, it can enter the water storage space 3 through the water circulation device 23. The water circulation device can be the product of our company's patent application CN214657541U and CN112942534A.

[0040] The water storage space 3 is equipped with a water outlet device 31. At the bottom of the water storage space 3, there is an outlet pipe OUT1 that can be selectively connected to the water outlet device 31. When the outlet pipe OUT1 is connected to the water outlet device 31, the water stored in the water storage space 3 can be discharged through the outlet pipe OUT1. When the outlet pipe OUT1 is not connected to the water outlet device 31, the water stored in the water storage space 3 will not be discharged through the outlet pipe OUT1. The bottom of the water storage space 3 is also equipped with an overflow pipe OUT2 that is connected to the outside, so that when there is a lot of water stored in the water storage space 3 and the water level is higher than a preset position, the water can be discharged through the overflow pipe OUT2.

[0041] As an improvement to the prior art, in this embodiment, a pilot device 4 is also provided between the pilot space 2 and the water storage space 3. The pilot device controls the opening and closing of the water outlet device 31 and the liquid outlet pipe OUT1 according to the amount of rainwater in the pilot space 2.

[0042] like Figure 2 As shown, the pilot device 4 in this embodiment includes a housing extending into the pilot space 2 and a pull rod 43 capable of moving up and down inside the housing. The pull rod extends from the top of the housing and a float 44 is provided below the top of the pull rod. The bottom of the pull rod is connected to one end of a connecting rod 45, which is hinged inside the housing. The other end of the connecting rod 45 is connected to a plug 47. The float 44 can rise synchronously with the liquid level under the buoyancy of the water stored in the pilot space 2. When it rises to a certain height, it contacts the top of the pull rod and lifts the pull rod. As the pull rod rises, the bottom of the pull rod drives one end of the connecting rod to rotate around the hinge point. The other end of the connecting rod pushes the plug 47 to close the connection between the water outlet device 31 and the liquid outlet pipe OUT1. Conversely, when the liquid level in the pilot space 2 drops, the float drops, and as the pull rod 43 drops, the effect on one end of the connecting rod 45 disappears. The other end of the connecting rod 45 retracts to open the connection between the water outlet device 31 and the liquid outlet pipe OUT1. This prevents rainwater from being discharged through the water outlet during the rain process, thus ensuring that water can be effectively stored in the water storage space.

[0043] like Figure 2 As shown, in this embodiment, the housing includes an upper housing 41 and a lower housing 42 that are connected to each other. The pull rod is located inside the upper housing 41 and the lower housing 42, and the connecting rod 45 and the plug 47 are located inside the lower housing 42. While realizing the control of water discharge without power, the working position of the pull rod, the connecting rod and the plug are limited, and the impact of water stored in the water storage space 3 on the operation of the pull rod, the connecting rod and the plug is reduced.

[0044] like Figure 2 As shown, the pull rod extends from the top of the housing and is provided with a first large diameter portion 431. The first large diameter portion 431 ensures that the top of the pull rod 43 is always located at the top of the housing. The bottom of the pull rod is provided with a second large diameter portion 432, which is used to overlap with one end of the connecting rod 45. When the pull rod rises, the second large diameter portion can drive the connecting rod 45 to rotate counterclockwise, thereby closing the connection between the water outlet device 31 and the liquid outlet pipe OUT1. When the pull rod falls, the effect of the second large diameter portion on the connecting rod 45 disappears, and the connecting rod 45 rotates clockwise, thereby opening the connection between the water outlet device 31 and the liquid outlet pipe OUT1.

[0045] In this embodiment, as Figure 2 As shown, the connecting rod 45 is L-shaped, and the middle part of the connecting rod 45 is hinged to the inside of the lower housing 42 through the pivot 46. One end of the connecting rod 45 is attached to the top of the second large diameter part 432 to rotate synchronously with the pull rod 43, and the other end is movably connected to the plug 47 to realize the pushing or retraction of the plug 47. As a preferred embodiment, one end of the connecting rod 45 can be set to be heavier than the other end of the connecting rod 45, so that when the pull rod 43 loses its force on the connecting rod 45, the connecting rod 45 can rotate clockwise due to its own weight to achieve reset and finally fall back down and attach to the top of the second large diameter part 432.

[0046] As a further preferred embodiment, the float 44 is configured as an annular shape and is sleeved on the top outer periphery of the shell. The float 44 can rise and fall synchronously with the water level inside the pilot space 2 under the action of buoyancy, so as to lift or loosen the first large diameter part 431 at the top of the pull rod 43.

[0047] As a further preferred embodiment, the plug body 47 is a conical plug, and a flexible structure is provided at the end of the conical plug near the water outlet device 31 to maintain good contact with the water outlet device 31 when opening and closing the connection between the water outlet device 31 and the liquid outlet pipe OUT1, thereby ensuring the on / off efficiency.

[0048] In this embodiment, the water outlet device 31 is a non-powered slow-release device, such as the non-powered slow-release device involved in our company's patents CN210737732U and CN110306641A. The non-powered slow-release device floats at the water surface position in the water storage space 3 under the buoyancy of its own top float. The water enters from the top inlet and exits from the bottom outlet. Larger water impurities are blocked outside the filter screen. Without the help of external force, the water entering the interior is controlled by the internal flow control component, which can maintain a slow, uniform and controllable flow rate of water release from the water storage space 3 while the water level continues to drop.

[0049] [Second Embodiment]

[0050] In another preferred embodiment, the water outlet device can also be a water outlet control device with a control valve. The only difference from the first embodiment is that the non-powered slow-release device is replaced with a water outlet control device with a control valve. When the plug 47 is pushed out, the water outlet control valve is closed, and when the plug 47 is pulled back, the water outlet control valve is opened. Without any external force, the water inlet is used as a pilot condition to control the opening and closing of the water outlet.

[0051] [Third Embodiment]

[0052] This invention also provides a water outlet control method for a pilot-type non-powered water outlet control device:

[0053] In this embodiment, the water level inside the pilot space 2 satisfies the following condition: first height < second height < third height;

[0054] The water level inside the pilot space 2 is at the first height, which means that the water level inside the pilot space 2 is neither able to float the float 44 nor reach the position of the through hole 22. The water stored inside the pilot space 2 can only slowly enter the water storage space 3 through the water passage device 23.

[0055] The water level inside the pilot space 2 rises to the second height, which means that the water level inside the pilot space 2 is able to float the float 44, but cannot reach the position of the through hole 22. The water stored inside the pilot space 2 can only slowly enter the water storage space 3 through the water passage device 23.

[0056] The water level inside the pilot space 2 rises to the third height, which means that at this time the water level inside the pilot space 2 can float the float 44 and reach the position of the through hole 22. Most of the water stored inside the pilot space 2 quickly enters the water storage space 3 through the side wall through hole 22, and a very small part slowly enters the water storage space 3 through the water passage device 23.

[0057] The method provided in this embodiment specifically includes the following steps:

[0058] 1) Rainwater falls into the pilot space 2 through the downpipe IN, is filtered by the sludge trap 21, and is stored at the bottom of the pilot space 2. At this time, the water level inside the pilot space 2 is too low to float the float 44 or reach the through hole 22. The water stored inside the pilot space 2 slowly enters the water storage space 3 through the water circulation device 23. Figure 3 As shown;

[0059] 2) As the water level inside the pilot space 2 gradually rises, when the water level inside the pilot space 2 is high enough to float the float 44, the float 44 rises synchronously with the water level inside the pilot space 2, and gradually comes into contact with the pull rod 43, eventually lifting the first large diameter section 431 at the top of the pull rod. When the pull rod rises, the second large diameter section rises synchronously, driving the connecting rod 45 to rotate counterclockwise, thereby pushing the plug 47 to the left to close the connection between the water outlet device 31 and the liquid outlet pipe OUT1. At this time, the water stored in the water storage space 3 cannot be discharged through the drain port 48 at the bottom of the non-powered slow release device, and the water level inside the water storage space 3 gradually rises. At this time, the top of the non-powered slow release device rises synchronously with the water level inside the water storage space 3, such as... Figure 4 As shown;

[0060] 3) When the water level inside the pilot space 2 rises to the position of the through hole 22, the water stored inside the pilot space 2 is discharged into the water storage space 3 through the through hole 22. As the water level drops, the lifting effect of the float 44 on the pull rod disappears. At the same time as the pull rod drops, the effect of the bottom on one end of the connecting rod also disappears. The connecting rod 45 rotates clockwise due to its own weight, causing its other end to pull back the plug 47 to open the connection between the water outlet device 31 and the liquid outlet pipe OUT1. At this time, the water stored in the water storage space 3 is finally discharged from the drain outlet 48 through the non-powered slow release device.

[0061] The buoyancy of the water in the pilot space drives the float to rise with the liquid surface and lift the lever. Then, the connecting rod drives the water outlet device to close, thus preventing rainwater from being discharged with the water outlet device during rain and failing to effectively store water in the water storage space. The opening and closing control of the water outlet device is entirely achieved by the buoyancy of the water stored in the pilot space, without the need for any external force, realizing the powerless control of the water outlet device. It can be combined with a slow-release device for rainwater storage devices on the ground (such as rainwater storage boxes), or it can be combined with a slow-release device for buried rainwater discharge delay regulation facilities. It has a wide range of applications and is flexible in combination.

[0062] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A pilot-type non-powered water outlet control device, comprising a water storage space (3), a planting space (1) and a pilot space (2) respectively connected to the top of the water storage space (3), a water outlet device (31) disposed inside the water storage space (3), and an overflow pipe (OUT2) and a liquid outlet pipe (OUT1) selectively connected to the water outlet device (31) disposed at the bottom of the water storage space (3); characterized in that: A pilot device (4) is also provided between the pilot space (2) and the water storage space (3); When the water level inside the pilot space (2) is at the first height, the water outlet device (31) is connected to the liquid outlet pipe (OUT1), and the water stored inside the pilot space (2) slowly enters the water storage space (3) through the bottom water passage device (23); When the water level inside the pilot space (2) rises to the second height, the water outlet device (31) is disconnected from the liquid outlet pipe (OUT1), and the water stored inside the pilot space (2) slowly enters the water storage space (3) through the bottom water passage device (23); When the water level inside the pilot space (2) rises to the third height, the water outlet device (31) is connected to the liquid outlet pipe (OUT1), and the water stored inside the pilot space (2) enters the water storage space (3) through the side wall through hole (22); The pilot device (4) includes a housing that extends into the pilot space (2) and a pull rod (43) that can move up and down inside the housing. The pull rod extends from the top of the housing and a float (44) is provided below the top of the pull rod. The bottom of the pull rod is connected to one end of a connecting rod (45), which is hinged inside the housing. The other end of the connecting rod (45) is connected to a plug (47). The housing includes an upper housing (41) and a lower housing (42) connected to each other. The pull rod is located inside the upper housing (41) and the lower housing (42). The connecting rod (45) and the plug (47) are located inside the lower housing (42). The pull rod extends from the top of the housing and has a first large diameter portion (431), and the bottom of the pull rod has a second large diameter portion (432). The connecting rod (45) is L-shaped, with its middle part hinged to the inside of the lower housing (42). One end of the connecting rod (45) overlaps the top of the second large diameter part (432), and the other end is movably connected to the plug (47).

2. The pilot-operated non-powered water outlet control device according to claim 1, characterized in that: The float (44) is configured as an annular shape and is fitted around the top periphery of the housing.

3. The pilot-operated non-powered water outlet control device according to claim 1, characterized in that: The plug (47) is a conical plug, and a flexible structure is provided at the end of the conical plug near the water outlet device (31).

4. The pilot-operated non-powered water outlet control device according to claim 1, characterized in that: The top of the pilot space (2) is provided with a debris trap (21), and a rain drain pipe (IN) is provided on the top of the debris trap (21).

5. The pilot-operated non-powered water outlet control device according to claim 1, characterized in that: The water outlet device (31) is selected as a non-powered slow-release device or a water outlet control device with a control valve.

6. A water outlet control method for a pilot-operated, non-powered water outlet control device according to any one of claims 1-5, characterized in that: Includes the following steps: 1) Rainwater falls into the pilot space (2) and is stored at the bottom of the pilot space (2). At this time, the water level inside the pilot space (2) is at the first water level, which can neither float the float (44) nor reach the through hole (22). The water stored inside the pilot space (2) slowly enters the water storage space (3) through the water passage device (23). 2) As the water level inside the pilot space (2) gradually rises to the second water level, the water level inside the pilot space (2) can float the float (44) and make it rise synchronously with the water level inside the pilot space (2) until it gradually comes into contact with the pull rod (43) and finally lifts the pull rod. When the pull rod rises, it drives the connecting rod (45) to rotate counterclockwise, thereby pushing the plug (47) to the left to close the connection between the water outlet device (31) and the liquid outlet pipe (OUT1). At this time, the water stored in the water storage space (3) cannot be discharged through the drain outlet (48), and the water level inside the water storage space (3) gradually rises. 3) When the water level inside the pilot space (2) rises to the third water level at the location of the through hole (22), the water stored inside the pilot space (2) is discharged into the water storage space (3) through the through hole (22). As the water level drops, the lifting effect of the float (44) on the pull rod disappears. At the same time as the pull rod drops, the effect on one end of the connecting rod also disappears. The connecting rod (45) rotates clockwise so that its other end pulls back the plug (47) to open the connection between the water outlet device (31) and the liquid outlet pipe (OUT1). At this time, the water stored in the water storage space (3) is finally discharged from the drain outlet (48) through the non-powered slow release device.

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