Roof garden irrigation device

Abstract

The utility model provides a roof garden irrigation device which comprises a water storage tank and an irrigation assembly. The water storage tank is connected with a water source through a water inlet pipeline and connected with the irrigation assembly through a water supply pipeline. A water inlet valve is arranged on the water inlet pipeline, a water level sensor is arranged in the water storage tank, and the water level sensor monitors the water surface position in the water storage tank. The water level sensor and the water inlet valve are connected with the liquid level controller, and the liquid level controller controls opening and closing of the water inlet valve according to monitoring data of the water level sensor. A water pump and a pressure transmitter are arranged on the water supply pipeline, and the pressure transmitter is located between the water pump and the irrigation assembly and monitors the water supply pressure in the water supply pipeline. The water pump and the pressure transmitter are connected with the constant-pressure water supply controller, the constant-pressure water supply controller is provided with a water supply pressure threshold value, and the rotating speed of the water pump is adjusted by combining the water supply pressure monitored by the pressure transmitter. The water pump can be prevented from running in water shortage, the water pump can adjust water output according to water pressure changes, and water resources are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of garden irrigation, in particular to a roof garden irrigation device. Background Art

[0002] Today, as the urbanization process continues to accelerate, urban land resources have become very limited, and land resources specifically used for urban greening construction are even more scarce. Against this background, roof gardens, as a way to make full use of the roof space of urban buildings for greening, have gradually attracted people's attention and favor. Roof gardens not only have multiple ecological benefits such as beautifying the urban environment, improving air quality, and increasing the area of ​​urban green space, but also provide people with a place for leisure, entertainment, and getting close to nature.

[0003] When watering the roof garden, most of them rely on the water supply system of constant pressure and fixed frequency mode, and use the water pump to pump water to each watering sprinkler head at full power to irrigate the plants in the roof garden. Figure 1 shown.

[0004] However, the above-mentioned roof garden irrigation device has many defects: the irrigation water pump operates in a fixed frequency mode, the water pump always pumps out water at full power, and presses water to each terminal sprinkler head at maximum pressure. Under this condition, a large amount of water resources will be lost in a short period of time, resulting in a waste of water resources. In addition, the irrigation water pump is directly connected to the constant pressure water supply pipeline of the large reservoir. When the water source capacity cannot keep up with the irrigation water volume, the water pump will enter a water shortage operation state and damage the pump body seal. Moreover, the irrigation sprinkler heads are divided into multiple areas, and the spraying electromagnetic main valve is opened by manual operation. All partitions carry out spraying operations at the same time, which forms a large water demand per unit time, further aggravating the shortage of water sources. In addition, the two parts of the water pump pressurization and spraying operation are relatively separate, and both are operated by manual operation, and the operating efficiency of the whole set of equipment is relatively low. Utility Model Content

[0005] In order to solve the above problems, the utility model proposes a roof garden watering device, which can prevent the water pump from running due to water shortage, and the water pump can adjust the water output according to the change of water pressure to save water resources.

[0006] The utility model provides a roof garden watering device, comprising a water storage tank, a liquid level controller, a constant pressure water supply controller and a watering component;

[0007] The water storage tank is connected to a water source through a water inlet pipeline and is connected to the irrigation assembly through a water supply pipeline. The irrigation water is supplied to the irrigation assembly through the water supply pipeline to irrigate the garden.

[0008] A water inlet valve is arranged on the water inlet pipeline, and a water level sensor is arranged inside the water storage tank, and the water level sensor monitors the water surface position in the water storage tank;

[0009] The water level sensor and the water inlet valve are respectively connected to the liquid level controller, and the liquid level controller controls the switch of the water inlet valve according to the monitoring data of the water level sensor, thereby controlling the water supply from the water source to the water storage tank;

[0010] A water pump and a pressure transmitter are provided on the water supply pipeline. The pressure transmitter is located between the water pump and the irrigation assembly to monitor the water supply pressure in the water supply pipeline.

[0011] The water pump and the pressure transmitter are respectively connected to a constant pressure water supply controller. The constant pressure water supply controller is set with a water supply pressure threshold. The speed of the water pump is adjusted in combination with the water supply pressure monitored by the pressure transmitter, thereby adjusting the water supply pressure and water supply volume in the water supply pipeline.

[0012] In one embodiment, the constant pressure water supply controller is connected to the liquid level controller to receive a water surface position signal from the water tank, and when the water surface position of the water tank is lower than a threshold value, the water pump is controlled to stop running.

[0013] In one embodiment, the irrigation assembly includes an irrigation pipeline and a spray valve, the irrigation pipeline is connected to the water supply pipeline, and the spray valve is arranged between the irrigation pipeline and the water supply pipeline.

[0014] In one embodiment, the roof garden watering device further includes a watering controller, which is connected to the spray valve to control the switch of the spray valve.

[0015] In one embodiment, there are multiple irrigation pipelines, each of which is connected to a water supply pipeline, each of which is provided with multiple sprinkler heads, each of which is provided with a sprinkler valve, and each sprinkler valve is arranged between the water supply pipeline and the sprinkler head of each irrigation pipeline.

[0016] In one embodiment, the irrigation controller is a PLC controller, which controls the spray valve on each irrigation pipeline respectively;

[0017] The watering controller opens the spray valves in sequence according to the arrangement order of the spray valves, and only one spray valve is opened at the same time.

[0018] In one embodiment, the water inlet valve and the spray valve are both solenoid valves.

[0019] In one embodiment, the liquid level controller is a pressure level gauge.

[0020] In one embodiment, a pressure gauge is provided on the water supply pipeline between the water pump and the irrigation assembly, and the pressure gauge displays the water supply pressure value.

[0021] Compared with the prior art, the roof garden watering device of the utility model has the following beneficial effects:

[0022] 1) The water pump in the roof garden watering device of the utility model always operates under an appropriate constant pressure, and can adjust the water output in time according to the change of load, thereby saving water.

[0023] 2) The design of the water storage tank in the roof garden irrigation device of the utility model can reasonably distribute and control the water volume, and adopts the rotation operation of the irrigation zones, and cooperates with the design of the water pump and the water storage tank, which can effectively overcome the problem of water shortage per unit time.

[0024] 3) The cooperation of the pressure level meter and the water level sensor in the roof garden watering device of the utility model can well control the water inlet of the water storage tank and prevent the water pump from running out of water, which does not affect the stability of the water supply system downstairs and ensures the continuity of water supply for irrigation.

[0025] 4) The roof garden watering device of the utility model can realize full-automatic mode PLC logic control through the PLC controller, which greatly improves the working efficiency of the entire watering system. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a roof garden watering device in the prior art;

[0027] Figure 2 The present invention is a schematic structural diagram of a roof garden watering device according to an embodiment of the present invention.

[0028] Reference numerals

[0029] 1. Liquid level controller, 2. Constant pressure water supply controller, 3. Irrigation controller, 4. Pressure transmitter, 5. Water supply pipeline, 6. Spray valve, 7. Spray head, 8. Pressure gauge, 9. Water pump, 10. Water level sensor, 11. Water tank, 12. Water inlet valve, 13. Irrigation pipeline. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the utility model, but the utility model can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0031] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0032] Secondly, the term "one embodiment" or "embodiment" in this application refers to a specific feature, structure or characteristic that can be included in at least one implementation of the utility model. The "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0033] The utility model proposes a roof garden irrigation device, comprising a water storage tank 11, a liquid level controller 1, a constant pressure water supply controller 2 and an irrigation component, such as Figure 2 shown.

[0034] The water storage tank 11 is connected to a water source via a water inlet pipe and is connected to an irrigation assembly via a water supply pipe 5 . The irrigation water is supplied to the irrigation assembly via the water supply pipe 5 to irrigate the garden.

[0035] A water inlet valve 12 is provided on the water inlet pipeline, and a water level sensor 10 is provided inside the water storage tank 11, and the water level sensor 10 monitors the water surface position in the water storage tank 11. The water level sensor 10 and the water inlet valve 12 are respectively connected to the liquid level controller 1, and the liquid level controller 1 controls the switch of the water inlet valve 12 according to the monitoring data of the water level sensor 10, thereby being able to accurately control the water supply from the water source to the water storage tank 11, so that the water storage tank 11 will not be overfilled to overflow, and the water amount in the water storage tank 11 can be ensured to be sufficient.

[0036] A water pump 9 and a pressure transmitter 4 are provided on the water supply pipeline 5. The pressure transmitter 4 is located between the water pump 9 and the irrigation assembly, and monitors the water supply pressure in the water supply pipeline 5. The water pump 9 and the pressure transmitter 4 are respectively connected to the constant pressure water supply controller 2. The constant pressure water supply controller 2 is provided with a water supply pressure threshold, and adjusts the rotation speed of the water pump 9 in combination with the water supply pressure monitored by the pressure transmitter 4, that is, the water pump 9 operates with variable frequency speed regulation, and then adjusts the water supply pressure and water supply volume in the water supply pipeline 5, so as to achieve a constant pressure effect of the water pressure output by the water pump 9, and reduce the waste of excessive water source pumping out.

[0037] In addition, the addition of the water storage tank 11 can be directly used as a water source for irrigation, while the original water source indirectly supplies water. The water source can basically meet the water demand of the water pump 9 after being stored.

[0038] The constant pressure water supply controller 2 of one embodiment of the utility model is also connected to the liquid level controller 1, receives the water level position signal of the water storage tank 11, and controls the water pump 9 to stop running when the water level of the water storage tank 11 is lower than the threshold. In other words, the constant pressure water supply controller 2 can also send a pump stop control signal when the water storage tank 11 is short of water, so as to prevent the water pump 9 from running due to water shortage, thereby preventing the water pump 9 from being damaged.

[0039] An irrigation assembly of an embodiment of the utility model comprises an irrigation pipeline 13 and a spray valve 6. The irrigation pipeline 13 is connected to the water supply pipeline 5. The spray valve 6 is arranged between the irrigation pipeline 13 and the water supply pipeline 5 so as to spray water on the garden at a suitable time.

[0040] The roof garden watering device of an embodiment of the utility model further comprises a watering controller 3, which is connected to a spraying valve 6 to control the switch of the spraying valve 6 to achieve remote control.

[0041] The irrigation pipeline 13 of one embodiment of the utility model has multiple roots (such as Figure 2 In the figure, there are three irrigation pipes 13, each of which is connected to the water supply pipe 5. A plurality of sprinkler heads 7 are arranged on each irrigation pipe 13, and a sprinkler valve 6 is arranged on each irrigation pipe 13. Each sprinkler valve 6 is arranged between the water supply pipe 5 and the sprinkler head 7 of each irrigation pipe 13.

[0042] The irrigation controller 3 of one embodiment of the utility model is a PLC controller, which controls the spray valve 6 on each irrigation pipeline 13 respectively. The irrigation controller 3 opens the spray valves 6 in sequence according to the arrangement order of the spray valves 6, and only one spray valve 6 is opened at the same time. That is, at any time, only the spray head 7 on one irrigation pipeline 13 is spraying and running. After a set period of time, the spray head 7 on the next irrigation pipeline 13 is rotated to spray. In this way, the rotation spraying operation in different areas can well solve the problem of water shortage in unit time. The spraying cycle and the spraying time and duration in a single spraying cycle can also be set on the PLC controller to prevent manual leakage and improve irrigation efficiency.

[0043] The water inlet valve 12 and the spray valve 6 of one embodiment of the utility model are both solenoid valves.

[0044] The liquid level controller 1 of one embodiment of the utility model is a pressure liquid level instrument.

[0045] In one embodiment of the utility model, a pressure gauge 8 is further provided on the water supply pipeline 5 between the water pump 9 and the irrigation assembly. The pressure gauge 9 displays the water supply pressure value to provide a reference when adjusting the water supply pressure on site.

[0046] It should be noted that, in the present application, unless otherwise clearly specified and limited, "connection", "setting" and other similar terms should be understood in a broad sense. 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, an indirect connection through an intermediate medium, or the internal connection of two components. Technical personnel in the field can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0047] The construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, changes in orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present utility model, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to several modifications still falling within the scope of the appended claims.

[0048] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0049] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0050] The utility model has the following beneficial effects:

[0051] 1) The water pump in the roof garden watering device of the utility model always operates under an appropriate constant pressure, and can adjust the water output in time according to the change of load, thereby saving water.

[0052] 2) The design of the water storage tank in the roof garden irrigation device of the utility model can reasonably distribute and control the water volume, and adopts the rotation operation of the irrigation zones, and cooperates with the design of the water pump and the water storage tank, which can effectively overcome the problem of water shortage per unit time.

[0053] 3) The cooperation of the pressure level meter and the water level sensor in the roof garden watering device of the utility model can well control the water inlet of the water storage tank and prevent the water pump from running out of water, which does not affect the stability of the water supply system downstairs and ensures the continuity of water supply for irrigation.

[0054] 4) The roof garden watering device of the utility model can realize full-automatic mode PLC logic control through the PLC controller, which greatly improves the working efficiency of the entire watering system.

[0055] The above-mentioned embodiments are only further explanations of the utility model, and are not intended to limit the utility model in other forms. The utility model may also have other various embodiments. Without departing from the spirit and essence of the utility model, those skilled in the art may make various corresponding modifications and changes according to the utility model, but these corresponding modifications and changes shall fall within the protection scope of the utility model.

Claims

1. A roof garden watering device, characterized in that: It includes a water storage tank, a liquid level controller, a constant pressure water supply controller and a watering component; The water storage tank is connected to a water source through a water inlet pipeline and is connected to the irrigation assembly through a water supply pipeline. The irrigation water is supplied to the irrigation assembly through the water supply pipeline to irrigate the garden. A water inlet valve is arranged on the water inlet pipeline, and a water level sensor is arranged inside the water storage tank, and the water level sensor monitors the water surface position in the water storage tank; The water level sensor and the water inlet valve are respectively connected to the liquid level controller, and the liquid level controller controls the switch of the water inlet valve according to the monitoring data of the water level sensor, thereby controlling the water supply from the water source to the water storage tank; A water pump and a pressure transmitter are provided on the water supply pipeline. The pressure transmitter is located between the water pump and the irrigation assembly to monitor the water supply pressure in the water supply pipeline. The water pump and the pressure transmitter are respectively connected to a constant pressure water supply controller. The constant pressure water supply controller is set with a water supply pressure threshold. The speed of the water pump is adjusted in combination with the water supply pressure monitored by the pressure transmitter, thereby adjusting the water supply pressure and water supply volume in the water supply pipeline.

2. The roof garden watering device according to claim 1, characterized in that: The constant pressure water supply controller is connected to the liquid level controller, receives the water surface position signal of the water storage tank, and controls the water pump to stop running when the water surface position of the water storage tank is lower than the threshold value.

3. The roof garden watering device according to claim 1, characterized in that: The irrigation assembly comprises an irrigation pipeline and a spray valve. The irrigation pipeline is connected to the water supply pipeline, and the spray valve is arranged between the irrigation pipeline and the water supply pipeline.

4. The roof garden watering device according to claim 3, characterized in that: It also includes a watering controller, which is connected to the spraying valve to control the switch of the spraying valve.

5. The roof garden watering device according to claim 4, characterized in that: There are multiple irrigation pipelines, each of which is connected to a water supply pipeline, each of which is provided with multiple sprinkler heads, each of which is provided with a sprinkler valve, and each sprinkler valve is arranged between the water supply pipeline and the sprinkler head of each irrigation pipeline.

6. The roof garden watering device according to claim 5, characterized in that: The irrigation controller is a PLC controller, which controls the spray valve on each irrigation pipeline separately; The watering controller opens the spray valves in sequence according to the arrangement order of the spray valves, and only one spray valve is opened at the same time.

7. The roof garden watering device according to claim 3, characterized in that: Both the water inlet valve and the spray valve are solenoid valves.

8. The roof garden watering device according to claim 1, characterized in that: The liquid level controller is a pressure level instrument.

9. The roof garden watering device according to claim 1, characterized in that: A pressure gauge is also provided on the water supply pipeline between the water pump and the irrigation assembly, and the pressure gauge displays the water supply pressure value.

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