Farmland irrigation self-pressure type water and fertilizer integrated water supply valve

Abstract

The utility model provides a self-pressure type water and fertilizer integrated water supply valve for farm irrigation, relates to the technical field of farm irrigation, and solves the problems that the design of a water supply valve in the prior art has defects, an upper valve body and a lower valve body need to be realized by connecting an upper valve body flange and a lower valve body flange through bolts, and the bolt connection mode is difficult to realize. The complexity of assembly and disassembly is increased, and the use convenience is poor. The self-pressure type water and fertilizer integrated water supply valve comprises an upper valve body and a lower valve body, the water inlet end of the upper valve body is in sealed threaded connection with the water outlet end of the lower valve body, meanwhile, the self-pressure type water and fertilizer integrated water supply valve has the advantages of being convenient to assemble and connect, improving the sealing performance, and being simple in structure, reasonable in design, convenient to assemble and disassemble and convenient to overhaul and maintain in the later period. Moreover, the upper flange and the lower flange are fixed by using two or three groups of bolts, so that the circumferential rotation between the upper valve body and the lower valve body is limited, and the stability and the reliability of the use of the water supply valve are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of farmland irrigation, in particular to a farmland irrigation self-pressure water-fertilizer integrated water supply valve. Background Art

[0002] At present, the connection method between the upper valve body and the lower valve body of the existing traditional farmland irrigation water supply valve is to fix the upper valve body flange and the lower valve body flange through a large number of bolts to achieve the connection between the upper valve body and the lower valve body, and then, a rubber sealing gasket is also arranged between the upper valve body flange and the lower valve body flange to achieve the sealing of the connection between the upper valve body and the lower valve body.

[0003] The applicant has found that the prior art has at least the following technical problems:

[0004] 1. The upper valve body and the lower valve body are connected by bolts to the upper valve body flange and the lower valve body flange. The traditional connection method of bolts increases the complexity of assembly and disassembly, and the convenience of use is poor;

[0005] 2. The rubber sealing gasket is partially exposed on the outside of the upper valve body and the lower valve body. It is easy to age after long-term use, resulting in sealing failure, poor stability and reliability;

[0006] 3. The current farmland irrigation water supply valve is only used for irrigation and watering the land. Its function is relatively simple and its use is limited. Utility Model Content

[0007] The purpose of the utility model is to provide a self-pressure water-fertilizer integrated water supply valve for farmland irrigation, so as to solve the design defects of the water supply valve in the prior art. The upper valve body and the lower valve body are connected by a large number of bolts to the upper valve body flange and the lower valve body flange. The bolt connection method increases the complexity of assembly and disassembly and the convenience of use is poor. The many technical effects that can be produced by the preferred technical solution among the many technical solutions provided by the utility model are described in detail below.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] The utility model provides a farmland irrigation self-pressure water-fertilizer integrated water supply valve, comprising an upper valve body and a lower valve body, wherein the water inlet end of the upper valve body is sealingly threadedly connected with the water outlet end of the lower valve body, and the upper flange of the upper valve body is connected with the lower flange of the lower valve body through a bolt connection pair.

[0010] Preferably, a first internal thread section is provided on the inner wall surface of the water inlet end of the upper valve body, a first external thread section threadably matched with the first internal thread section is provided on the outer wall surface of the water outlet end of the lower valve body, and the lower flange of the lower valve body is located below the first external thread section.

[0011] Preferably, a slot is provided on the upper valve body, a screw is movably connected in the slot, a pressure plate is provided at the lower end of the screw, a first sealing gasket is provided above the pressure plate, and the first sealing gasket can seal and cover the gap between the screw and the slot.

[0012] Preferably, the screw rod is provided with an upper external thread section, a lower external thread section and a smooth section located between the upper external thread section and the lower external thread section, and the inner wall of the slot is provided with a second internal thread section that threadably cooperates with the upper external thread section and the lower external thread section.

[0013] Preferably, a second sealing gasket is provided at the lower end of the pressure plate, and the second sealing gasket can seal and cover the gap between the pressure plate and the water outlet end of the lower valve body.

[0014] Preferably, a handle is provided at the upper end of the screw.

[0015] Preferably, the water outlet end of the upper valve body is threadedly connected with a water-fertilizer oxygenation terminal, and the water-fertilizer oxygenation terminal is connected with an oxygen absorption hole and a fertilizer absorption port.

[0016] Preferably, the water-fertilizer oxygenation terminal has a water inlet section, an intermediate boost section and a water outlet section, the water inlet section, the intermediate boost section and the water outlet section are connected in sequence along the water flow direction, the inner diameters of the water inlet section and the water outlet section decrease toward the intermediate boost section, and the intermediate boost section is connected and provided with an oxygen absorption hole and a fertilizer absorption port.

[0017] The preferred technical solution of the utility model can also produce at least the following technical effects:

[0018] The utility model effectively avoids the design defects of the water supply valve existing in the prior art. The valve body and the lower valve body are connected by a large number of bolts to the upper valve body flange and the lower valve body flange. The bolt connection method increases the cumbersomeness of assembly and disassembly, and the technical problem of poor convenience of use. The utility model provides a self-pressure water-fertilizer integrated water supply valve for farmland irrigation, including an upper valve body and a lower valve body. The water inlet end of the upper valve body is sealed and threadedly connected with the water outlet end of the lower valve body, and the upper flange of the upper valve body is connected with the lower flange of the lower valve body by a bolt connection pair. The utility model is connected by a sealing thread between the water inlet end of the upper valve body and the water outlet end of the lower valve body, and has the functions of connection and sealing at the same time. There is no need to set a sealing gasket between the upper flange and the lower flange. The structure is simple, the design is reasonable, the assembly and disassembly are convenient, and the later overhaul and maintenance are convenient. Moreover, the upper flange and the lower flange are connected by using two or three groups of bolt connection pairs to limit the circumferential rotation between the upper valve body and the lower valve body, thereby improving the stability and reliability of the use of the water supply valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is a structural schematic diagram of a self-pressure water-fertilizer integrated water supply valve for farmland irrigation provided by the utility model;

[0021] Figure 2 The utility model is a cross-sectional view of a self-pressure water-fertilizer integrated water supply valve for farmland irrigation.

[0022] In the figure:

[0023] 1. Upper valve body; 11. First internal thread section; 12. Slot; 13. Upper flange; 2. Lower valve body; 21. First external thread section; 22. Lower flange; 3. Screw; 31. Upper external thread section; 32. Smooth section; 33. Lower external thread section; 4. Pressure plate; 5. First sealing gasket; 6. Second sealing gasket; 7. Handle; 8. Water fertilizer oxygenation terminal; 81. Water inlet section; 82. Middle boosting section; 83. Water outlet section; 84. Oxygen absorption hole; 85. Fertilizer absorption port;

[0024] 9. Bolt connection pair. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0026] like Figure 1 , 2 As shown, the utility model provides a self-pressurized water-fertilizer integrated water supply valve for farmland irrigation, comprising an upper valve body 1 and a lower valve body 2, the water inlet end of the upper valve body 1 is sealed and threadedly connected to the water outlet end of the lower valve body 2, and the upper flange 13 of the upper valve body 1 is connected to the lower flange 22 of the lower valve body 2 by a bolt connection pair 9.

[0027] The utility model has both connection and sealing functions by sealingly threading the water inlet end of the upper valve body 1 and the water outlet end of the lower valve body 2, and does not require a sealing gasket to be provided between the upper flange 13 and the lower flange 22. The utility model has a simple structure, reasonable design, convenient assembly and disassembly, and convenient later overhaul and maintenance. Moreover, by using two or three sets of bolt connection pairs 9 to connect the upper flange 13 and the lower flange 22, the circumferential rotation between the upper valve body 1 and the lower valve body 2 is limited, thereby improving the stability and reliability of the water supply valve.

[0028] The upper valve body 1 and the lower valve body 2 are made of environmentally friendly and renewable material PCABS alloy material.

[0029] As an optional implementation, a first internal thread section 11 is provided on the inner wall surface of the water inlet end of the upper valve body 1, and a first external thread section 21 threadably matched with the first internal thread section 11 is provided on the outer wall surface of the water outlet end of the lower valve body 2, and the lower flange 22 of the lower valve body 2 is located below the first external thread section 21.

[0030] The upper valve body 1 and the lower valve body 2 are sealed by the threaded cooperation of the first internal thread section 11 and the first external thread section 21. Then, the upper flange 13 and the lower flange 22 are connected by using two or three groups of bolt connection pairs 9 to limit the circumferential rotation between the upper valve body 1 and the lower valve body 2, thereby improving the stability and reliability of the water supply valve.

[0031] Since the function of the upper flange 13 and the lower flange 22 is only to stop the circumferential rotation between the upper valve body 1 and the lower valve body 2, only two or three groups of a small number of bolt connection pairs 9 are needed to limit the relative position of the upper flange 13 and the lower flange 22, thereby stopping the circumferential rotation between the upper valve body 1 and the lower valve body 2. The assembly and disassembly are convenient, and the subsequent inspection and maintenance are convenient.

[0032] As an optional implementation, a slot 12 is provided on the upper valve body 1, and a screw 3 is movably connected in the slot 12. A pressure plate 4 is provided at the lower end of the screw 3, and a first sealing gasket 5 is provided above the pressure plate 4. The first sealing gasket 5 can seal and cover the gap between the screw 3 and the slot 12.

[0033] When the water supply valve is opened, the first sealing gasket 5 abuts against the inner wall of the upper valve body 1 to seal and cover the gap between the screw 3 and the slot 12, thereby improving the sealing performance of the water supply valve.

[0034] As an optional embodiment, the screw rod 3 is provided with an upper external thread section 31, a lower external thread section 33 and a smooth section 32 located between the upper external thread section and the lower external thread section, and a second internal thread section that is threadably matched with the upper external thread section and the lower external thread section is provided on the inner wall of the slot 12.

[0035] The external force drives the screw 3 to rotate, the upper external thread section 31 rises and disengages from the second internal thread section of the slot 12, and the smooth section 32 and the lower external thread section 33 enter the slot 12 in sequence, driving the pressure plate 4 to rise until the first sealing gasket 5 abuts against the inner wall of the upper valve body 1, the upper valve body 1 is connected with the lower valve body 2, and the water supply valve is opened;

[0036] External force drives the screw 3 to rotate in the opposite direction, the lower external thread section 33 descends and disengages from the second internal thread section of the slot 12, and the sliding section and the upper external thread section 31 enter the slot 12 in sequence, driving the pressure plate 4 to descend until the second sealing gasket 6 abuts against the water outlet end of the lower valve body 2, the upper valve body 1 and the lower valve body 2 are separated, and the water supply valve is closed.

[0037] Furthermore, the length of the smooth section 32 is greater than the length of the upper external thread section 31 and the lower external thread section 33. This arrangement greatly improves the movement rate of the screw 3 driving the pressure plate 4, further saving the time for opening and closing the water supply valve.

[0038] The length of the screw 3 is preferably 30 cm, the length of the upper external thread section is preferably 4 cm, the length of the lower external thread section is preferably 5 cm, and the length of the smooth section 32 is preferably 21 cm.

[0039] As an optional implementation, a second sealing gasket 6 is provided at the lower end of the pressure plate 4 , and the second sealing gasket 6 can seal and cover the gap between the pressure plate 4 and the water outlet end of the lower valve body 2 .

[0040] Furthermore, the second sealing gasket 6 is located inside the upper valve body 1, with no exposed part outside, which slows down the aging of the second sealing gasket 6 and prolongs the service life of the second sealing gasket 6. The second sealing gasket 6 is preferably a rubber sealing gasket.

[0041] When the water supply valve is closed, the second sealing gasket 6 abuts against the water outlet end of the lower valve body 2 to seal and cover the gap between the pressure plate 4 and the water outlet end of the lower valve body 2, thereby improving the sealing performance of the water supply valve.

[0042] As an optional embodiment, a handle 7 is provided at the upper end of the screw rod 3 .

[0043] Furthermore, the handle 7 is a gold ingot-shaped structure and is detachably connected to the upper end of the screw rod 3. The function of the handle 7 is to facilitate the user to hold and apply force.

[0044] As an optional implementation, the water outlet end of the upper valve body 1 is threadedly connected with a water-fertilizer oxygenation terminal 8 , and the water-fertilizer oxygenation terminal 8 is connected and provided with an oxygen absorption hole 84 and a fertilizer absorption port 85 .

[0045] As an optional implementation, the water-fertilizer oxygenation terminal 8 has an inlet section 81, an intermediate boost section 82 and a water outlet section 83. The inlet section 81, the intermediate boost section 82 and the water outlet section 83 are connected in sequence along the water flow direction. The inner diameters of the inlet section 81 and the water outlet section 83 decrease toward the intermediate boost section 82. The intermediate boost section 82 is connected and provided with an oxygen absorption hole 84 and a fertilizer absorption port 85.

[0046] The diameter of the water inlet section 81 decreases toward the middle boost section 82, the water flow rate increases, and the pressure increases. The diameter of the water outlet section 83 decreases toward the middle boost section 82, the water flow rate decreases, and the pressure decreases, so as to form a suction effect. The oxygen in the air or oxygen storage device is sucked into the water body through the oxygen absorption hole 84 to replenish the oxygen in the water body, improve the soil permeability, and help the growth of crops. Fertilizer is sucked into the water body through the fertilizer absorption port 85, and irrigates the farmland together with the water body to achieve simultaneous water and fertilizer supply, without the need for separate fertilization, saving time and effort, and improving irrigation efficiency and quality. Among them, the specific connection method between the oxygen absorption hole 84 and the fertilizer absorption port 85 and the external equipment adopts the existing technology, which will not be elaborated here.

[0047] The water supply valve provided by the utility model integrates the functions of water supply, fertilizer supply and oxygen supply, has a wide range of applications, is highly practical, is worthy of large-scale promotion and application, and has potential significance for improving the quality of farmland irrigation.

[0048] It can be understood that the same or similar parts of the above embodiments can be referenced to each other, and the contents not described in detail in some embodiments can refer to the same or similar contents in other embodiments.

[0049] In the description of the present utility model, it should be noted that, unless otherwise specified, "multiple" means two or more; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0050] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0051] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "an example" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0052] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A self-pressurized water-fertilizer integrated water supply valve for farmland irrigation, characterized in that: The invention comprises an upper valve body and a lower valve body, wherein the upper valve body and the lower valve body are connected by sealing threads, and the upper flange of the upper valve body is fixed to the lower flange of the lower valve body by bolt connection; a first internal thread section is arranged on the inner wall surface of the water inlet end of the upper valve body, and an external thread section is arranged on the outer wall surface of the water outlet end of the lower valve body, and the first internal thread section is threadedly matched with a first external thread section, and the lower flange of the lower valve body is located below the first external thread section; a slot is provided on the upper valve body, and a screw rod is movably connected in the slot, and a screw rod is arranged at the lower end of the screw rod A pressure plate, a first sealing gasket is arranged above the pressure plate, and the first sealing gasket can seal and cover the gap between the screw and the slot; the screw is provided with an upper external thread section, a lower external thread section and a smooth section located between the upper external thread section and the lower external thread section, and the inner wall of the slot is provided with a second internal thread section that threadably cooperates with the upper external thread section and the lower external thread section; the water outlet end of the upper valve body is threadedly connected with a water-fertilizer oxygenation terminal, and the water-fertilizer oxygenation terminal is connected with an oxygen absorption hole and a fertilizer absorption port.

2. The self-pressure water-fertilizer integrated water supply valve for farmland irrigation according to claim 1, characterized in that: A second sealing gasket is disposed at the lower end of the pressure plate, and the second sealing gasket can seal and cover the gap between the pressure plate and the water outlet end of the lower valve body.

3. The self-pressure water-fertilizer integrated water supply valve for farmland irrigation according to claim 1, characterized in that: A handle is arranged on the upper end of the screw rod.

4. The self-pressure water-fertilizer integrated water supply valve for farmland irrigation according to claim 1, characterized in that: The water-fertilizer oxygenation terminal comprises a water inlet section, an intermediate boosting section and a water outlet section. The water inlet section, the intermediate boosting section and the water outlet section are sequentially connected along the water flow direction. The inner diameters of the water inlet section and the water outlet section decrease gradually toward the intermediate boosting section. The intermediate boosting section is connected and provided with an oxygen absorption hole and a fertilizer absorption port.

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