Check valve for irrigation

Abstract

The check valve comprises a valve body, a valve plate, a valve plate reset mechanism, a valve plate opening degree adjusting mechanism and a hand lifting piece, a through groove used for outputting irrigation water is formed in the valve body, the valve plate is located in the through groove and can be turned over to open or close the through groove, the valve plate reset mechanism is connected with the valve plate, and the valve plate opening degree adjusting mechanism is connected with the hand lifting piece. The valve plate reset mechanism is used for driving the valve plate to reset so as to close the through groove, a water pipe connecting piece is arranged on the end face, away from the valve plate, of the valve plate and used for being connected to the output end of an irrigation water pipe, and the valve plate opening adjusting mechanism is connected with the valve plate. The valve plate opening degree adjusting mechanism is used for manually adjusting the opening position of the valve plate so as to meet the irrigation requirements of different water pressures, the hand lifting piece is connected with the valve body and used for being held by irrigation personnel, and the hand lifting piece can move and be fixed in the radial direction of the valve body so as to adjust the opening size of the through groove. According to the invention, the flexible control and non-return functions of irrigation water flow are realized, the problems in the existing irrigation system are solved, and the irrigation efficiency and the energy utilization rate are improved.

Description

Technical Field

[0001] The invention relates to the technical field of valves, and in particular to a check valve for irrigation. Background Art

[0002] At present, the irrigation method for farmland in the north is mostly to use water pumps to extract water from wells in the fields for flooding or sprinkler irrigation. The specific method is to use submersible pumps or other water pumps to be placed in the wells. The wells are mostly at one end of the field, and the irrigation pipes are laid to the other end of the field. Then, the irrigation is carried out while retreating to complete the irrigation of the entire field. The current problem is that during irrigation, the operator holds the water outlet end of the irrigation pipe. When the irrigation needs to be suspended during a rest, after turning off the water pump, the water in the irrigation pipe will quickly lose due to the open water outlet. When the water pump is turned on again for irrigation, it takes a while to fill the water, resulting in energy waste and time waste. Summary of the invention

[0003] The purpose of the present invention is to provide a check valve for irrigation to solve the above-mentioned problems existing in current farmland irrigation.

[0004] To achieve the above object, the present invention adopts the following technical solution:

[0005] A check valve for irrigation, comprising a valve body, a valve plate, a valve plate reset mechanism, a valve plate opening adjustment mechanism and a hand-held piece, wherein the valve body is provided with a through groove for outputting irrigation water, the valve plate is located in the through groove and can be flipped in a direction perpendicular to the water flow to open or close the through groove, the valve plate reset mechanism is connected to the valve plate, the valve plate reset mechanism is used to drive the valve plate to reset to close the through groove, the valve plate is provided with a water pipe connector on the end surface away from the valve plate, the water pipe connector is used to be connected to the output end of the irrigation water pipe, the valve plate opening adjustment mechanism is connected to the valve plate, the valve plate opening adjustment mechanism is used to manually adjust the opening position of the valve plate to adapt to irrigation needs of different water pressures, the hand-held piece is connected to the valve body for being held by irrigation personnel, and the hand-held piece can be moved and fixed along the radial direction of the valve body to adjust the opening size of the through groove.

[0006] Furthermore, the upper end of the valve plate is provided with a rotating shaft, and a first mounting groove for mounting the rotating shaft is provided on the valve body above the through groove, and an avoidance groove for avoiding the valve plate is provided between the first mounting groove and the through groove, and fixing parts are provided at both ends of the first mounting groove on the valve plate, and the rotating shaft is limited and rotated in the mounting groove through the fixing parts, and the rotation of the rotating shaft is used to open or close the through groove; the valve plate resetting mechanism includes a second mounting groove, a torsion spring and a torsion spring mounting part provided above the first mounting groove, one end of the torsion spring is connected to the torsion spring mounting part, and the other end abuts against the surface of the valve plate, and the fixing parts are provided at both ends of the second mounting groove on the valve plate, and the torsion spring mounting part is limited in the mounting groove through the fixing parts, and the torsion spring is used to continuously provide pressure on the valve plate to drive the valve plate to reset to close the through groove.

[0007] Furthermore, the fixing member includes a fixing bolt and a fixing gasket, and circular grooves are provided on the valve plate at both ends of the first mounting groove and the second mounting groove. The fixing gasket is provided in the circular groove, and the fixing gasket is fixed to the valve plate by the fixing bolt.

[0008] Furthermore, the valve plate opening adjustment mechanism includes a first mounting member, an adjusting cable and an adjusting cable positioning member, wherein the first mounting member is arranged on the valve plate, the adjusting cable positioning member is arranged on the valve body, one end of the adjusting cable is connected to the first mounting member, and the other end is connected to the adjusting cable positioning member, and the position of the adjusting cable is positioned by the adjusting cable positioning member to position the opening angle of the valve plate.

[0009] Furthermore, the first mounting member includes a lifting ring, the adjusting rope is in a closed ring shape, the adjusting rope positioning member includes a pig nose buckle, the pig nose buckle is provided with two mounting holes, one end of the adjusting rope is passed through the lifting ring, and the other end is passed through the two mounting holes, and a positioning button is provided on the pig nose buckle, and the adjusting rope can be fixed in the mounting hole through the positioning installation.

[0010] Furthermore, a plug-in hole for the hand-held piece to be plugged in is provided on the side wall at the top of the valve body along the radial direction from top to bottom, and the lower end of the plug-in hole is located below the bottom of the through groove. The hand-held piece can be movably arranged in the plug-in hole up and down, and a positioning piece is provided on the valve body, through which the hand-held piece can be moved up and down and fixed in the plug-in hole.

[0011] Furthermore, a hand buckle portion for irrigation personnel to hold is provided on the top of the hand piece, and wave grooves are provided on both sides of the hand piece, and the wave grooves are arranged along the radial direction of the valve body. The positioning piece is used to be clamped in the wave groove to fix the hand piece.

[0012] Furthermore, the positioning member includes a ball plunger, and a threaded hole is provided on the side wall of the valve body at a position corresponding to the plug-in hole, and the ball plunger is installed in the threaded hole. The ball plunger is used to be clamped in the wave groove to fix the handpiece.

[0013] Furthermore, a slide groove is provided on the hand piece on a side close to the wave groove, and the slide groove is provided along the radial direction of the valve body. A blind hole is provided on the valve body, and the blind hole is provided corresponding to the slide groove. A limit pin is provided in the blind hole, and the limit pin passes through the slide groove. The limit pin cooperates with the slide groove to maintain the connection between the hand piece and the valve body.

[0014] Furthermore, the water pipe connector is in a tubular shape, and a protrusion is provided on its outer wall circumferentially extending outward, and there are multiple protrusions, and each of the protrusions is arranged at intervals along the axial direction of the water pipe connector.

[0015] Beneficial effects of the present invention:

[0016] The irrigation check valve of the present invention, through the ingenious design of the valve plate and the valve body through groove, and the setting of the valve plate reset mechanism, enables the valve plate to automatically reset and close the through groove when irrigation is suspended, effectively preventing water loss in the irrigation water pipe and reducing the waste of water resources. Since the valve plate can be quickly opened when needed and automatically closed when irrigation is suspended, the waiting time during the irrigation process is reduced and the irrigation efficiency is improved. At the same time, the setting of the valve plate opening adjustment mechanism allows irrigation personnel to adjust the opening angle of the valve plate according to actual needs, further improving the flexibility and adaptability of irrigation. The design of the handpiece allows irrigation personnel to conveniently hold and operate the check valve, and the adjustability of the handpiece also meets the use needs of different irrigation personnel.

[0017] In summary, the irrigation check valve of the present invention, through its unique design and function, prevents water loss, improves irrigation efficiency, saves energy, and provides a more efficient and energy-saving solution for farmland irrigation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram (stereoscopic diagram) of the irrigation check valve of the present invention;

[0019] Figure 2 yes Figure 1 A schematic diagram of the structure from another angle;

[0020] Figure 3 It is a structural schematic diagram (explosion diagram) of the irrigation check valve of the present invention;

[0021] Figure 4 is a cross-sectional view of the irrigation check valve of the present invention;

[0022] Figure 5 It is a schematic diagram of the structure of the valve body in the irrigation check valve of the present invention;

[0023] Figure 6 It is a structural schematic diagram of a valve plate and a valve plate opening adjustment mechanism in a check valve for irrigation of the present invention;

[0024] Figure 7 It is a structural schematic diagram of a handle in the irrigation check valve of the present invention.

[0025] The names corresponding to the marks in the figure are:

[0026] 1. Valve body, 11. Through groove, 12. First installation groove, 13. Avoidance groove, 14. Second installation groove, 15. Plug hole, 16. Threaded hole, 17. Blind hole,

[0027] 2. valve plate, 21. water pipe connector, 211. protrusion, 22. rotating shaft, 23. circular groove, 3. valve plate reset mechanism, 31. torsion spring, 32. torsion spring mounting part,

[0028] 4. Valve plate opening adjustment mechanism, 41. First mounting member, 42. Adjusting cable, 43. Adjusting cable positioning member, 431. Pig nose buckle, 432. Mounting hole, 433. Positioning button, 5. Hand piece, 51. Hand buckle part, 52. Wave groove, 53. Slide groove, 6. Fixing member, 61. Fixing bolt, 62. Fixing gasket,

[0029] 7. Positioning parts,

[0030] 8. Limit pin. DETAILED DESCRIPTION

[0031] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0032] Example 1

[0033] like Figures 1 to 7 As shown, this embodiment provides a check valve for irrigation, which includes a valve body 1, a valve plate 2, a valve plate resetting mechanism 3, a valve plate opening adjustment mechanism 4 and a handle 5.

[0034] Specifically, the valve body 1 is provided with a through groove 11 for outputting irrigation water. The valve plate 2 is located in the through groove 11 and can be flipped in a direction perpendicular to the water flow to open or close the through groove 11, thereby realizing the on-off control of the water flow. The valve plate reset mechanism 3 is connected to the valve plate 2, and is used to drive the valve plate 2 to reset to close the through groove 11, ensuring that the valve plate 2 can be automatically closed when irrigation is not required to prevent water loss. The valve body 1 is provided with a water pipe connector 21 on the end surface away from the valve body 1, and the water pipe connector 21 is used to be connected to the output end of the irrigation water pipe, thereby realizing the connection with the irrigation system. The valve plate opening adjustment mechanism 4 is connected to the valve plate 2, and is used to manually adjust the opening position of the valve plate 2 to meet the irrigation needs of different water pressures, thereby improving the flexibility and adaptability of irrigation. The handpiece 5 is connected to the valve body 1, and is used for irrigation personnel to hold it for easy operation. The handpiece 5 can be moved and fixed along the radial direction of the valve body 1 to adjust the opening size of the through groove 11, further meeting different irrigation needs.

[0035] Example 2

[0036] On the basis of Example 1, Figure 2-Figure 4 As shown, the upper end of the valve plate 2 has a rotating shaft 22, and the valve body 1 is provided with a first mounting groove 12 for mounting the rotating shaft 22 above the through groove 11, and a evacuation groove 13 for evading the valve plate 2 is provided between the first mounting groove 12 and the through groove 11. Fixing members 6 are provided at both ends of the first mounting groove 12 on the valve plate 2, and the rotating shaft 22 is limited and rotated in the first mounting groove 12 by the fixing members 6, and the rotation of the rotating shaft 22 is used to open or close the through groove 11.

[0037] The valve plate resetting mechanism 3 includes a second mounting groove 14 arranged above the first mounting groove 12, a torsion spring 31 and a torsion spring mounting member 32. One end of the torsion spring 31 is connected to the torsion spring mounting member 32, and the other end abuts against the surface of the valve plate 2. The valve plate 2 is provided with fixing members 6 at both ends of the second mounting groove 14, and the torsion spring mounting member 32 is limited in the second mounting groove 14 by the fixing members 6. The torsion spring 31 is used to continuously provide pressure on the valve plate 2 to drive the valve plate 2 to reset to close the through groove 11, ensuring that the valve plate 2 can be automatically closed when not subjected to external force.

[0038] Example 3

[0039] On the basis of Example 2, Figure 3 As shown, the fixing member 6 includes a fixing bolt 61 and a fixing gasket 62. Circular grooves 23 are provided on the valve plate 2 at both ends of the first mounting groove 12 and the second mounting groove 14, and the fixing gasket 62 is provided in the circular groove 23. The fixing gasket 62 is fixed to the valve plate 2 by the fixing bolt 61, thereby realizing the stable installation of the rotating shaft 22 and the torsion spring mounting member 32.

[0040] Example 4

[0041] In actual irrigation, due to the different driving modes of water pumps, some are electrically driven and some are diesel driven, there are changes in water pressure, and the change in water pressure affects the opening of the valve plate. Based on Example 1, as Figure 1 and Figure 6 As shown, the valve plate opening adjustment mechanism 4 includes a first mounting member 41, an adjusting cable 42 and an adjusting cable positioning member 43. The first mounting member 41 is arranged on the valve plate 2, the adjusting cable positioning member 43 is arranged on the valve body 1, one end of the adjusting cable 42 is connected to the first mounting member 41, and the other end is connected to the adjusting cable positioning member 43. In actual use, if the water pressure is low and it is difficult to fully open the valve plate, the position of the adjusting cable 42 can be positioned by the adjusting cable positioning member 43 to position the opening angle of the valve plate 2, thereby realizing manual and flexible adjustment of the opening of the valve plate 2 to adapt to the conditions of the irrigation site.

[0042] Example 5

[0043] On the basis of Example 4, Figure 6 As shown, the first mounting member 41 includes a lifting ring, the adjusting cable 42 is in a closed ring shape, and the adjusting cable positioning member 43 includes a pig nose buckle 431. The pig nose buckle 431 is provided with two mounting holes 432, one end of the adjusting cable 42 is passed through the lifting ring, and the other end is passed through the two mounting holes 432. The pig nose buckle 431 is provided with a positioning button 433, and the adjusting cable 42 can be fixed in the mounting hole 432 by the positioning button 433, so as to achieve stable adjustment of the opening of the valve plate 2.

[0044] Example 6

[0045] On the basis of Example 1, Figure 3-Figure 5 As shown, a plug hole 15 for a hand piece 5 to be plugged in is provided on the side wall at the top of the valve body 1 from top to bottom in the radial direction, and the lower end of the plug hole 15 is located below the bottom of the through groove 11. The hand piece 5 is arranged in the plug hole 15 so as to be movable up and down. A positioning member 7 is provided on the valve body 1, and the hand piece 5 can be moved up and down and fixed in the plug hole 15 by the positioning member 7, so as to realize the flexible adjustment of the position of the hand piece 5. When the flood irrigation method is used normally, that is, the output end of the water pipe is placed on the ground, and water is allowed to flow naturally for irrigation. At this time, the water pipe can be conveniently moved by holding the hand piece to change the flood irrigation position. When sprinkler irrigation is required, sprinkler irrigation refers to lifting the water pipe to spray water to the position where irrigation is required. When sprinkler irrigation is required, the output water usually needs to be pressurized to increase the sprinkler irrigation range. At this time, the hand piece can be moved up and down, and the hand piece can partially cover the through groove, thereby changing the pressure of the water output, so as to realize the purpose of sprinkler irrigation.

[0046] Example 7

[0047] On the basis of Example 6, Figure 2As shown, a hand buckle 51 for irrigation workers to hold is provided on the top of the hand piece 5, which is convenient for irrigation workers to hold and operate. Wave grooves 52 are provided on both sides of the hand piece 5. The wave grooves 52 are arranged along the radial direction of the valve body 1. The positioning member 7 is used to be clamped in the wave grooves 52 to fix the hand piece 5, so as to achieve a stable positioning of the hand piece 5 in the plug hole 15.

[0048] Example 8

[0049] On the basis of Example 7, Figure 3 and Figure 4 As shown, the positioning member 7 includes a ball plunger, and a threaded hole 16 is provided on the side wall of the valve body 1 at a position corresponding to the plug hole 15, and the ball plunger is installed in the threaded hole 16. The ball plunger is used to be clamped in the wave groove 52 to fix the hand piece 5, and the hand piece 5 can be easily fixed and released by rotating the ball plunger.

[0050] Example 9

[0051] On the basis of Example 8, Figure 4 As shown, a slide groove 53 is provided on the hand piece 5 at one side close to the wave groove 52, and the slide groove 53 is provided along the radial direction of the valve body 1. A blind hole 17 is provided on the valve body 1, and the blind hole 17 is provided corresponding to the slide groove 53. A limit pin 8 is provided in the blind hole 17, and the limit pin 8 passes through the slide groove 53. The limit pin 8 cooperates with the slide groove 53 to maintain the connection between the hand piece 5 and the valve body 1, and prevents the hand piece 5 from falling off or shaking in the plug hole 15.

[0052] Example 10

[0053] On the basis of Example 1, Figure 2 As shown, the water pipe connector 21 is tubular, and a protrusion 211 is provided on the outer wall thereof, extending outwardly in the circumferential direction, and a plurality of protrusions 211 are provided, and each protrusion 211 is arranged at intervals along the axial direction of the water pipe connector 21. The arrangement of the protrusions 211 increases the friction between the water pipe connector 21 and the irrigation water pipe, improves the stability of the connection, and prevents the water pipe from falling off or leaking during use.

[0054] In summary, the irrigation check valve of the present invention realizes flexible control and check function of irrigation water flow through the ingenious design of structures such as the valve plate, valve plate reset mechanism, valve plate opening adjustment mechanism and handle, solves the problems existing in the existing irrigation system, and improves irrigation efficiency and energy utilization.

Claims

1. A check valve for irrigation, characterized in that: The utility model comprises a valve body, a valve plate, a valve plate reset mechanism, a valve plate opening adjustment mechanism and a hand-held piece. The valve body is provided with a through groove for outputting irrigation water. The valve plate is located in the through groove and can be flipped in a direction perpendicular to the water flow to open or close the through groove. The valve plate reset mechanism is connected to the valve plate. The valve plate reset mechanism is used to drive the valve plate to reset to close the through groove. The valve body is provided with a water pipe connector on the end surface away from the valve plate. The water pipe connector is used to be connected to the output end of the irrigation water pipe. The valve plate opening adjustment mechanism is connected to the valve plate. The valve plate opening adjustment mechanism is used to manually adjust the opening position of the valve plate to adapt to the irrigation needs of different water pressures. The hand-held piece is connected to the valve body for being held by irrigation personnel. The hand-held piece can be moved and fixed along the radial direction of the valve body to adjust the opening size of the through groove.

2. The irrigation check valve according to claim 1, characterized in that: The upper end of the valve plate is provided with a rotating shaft, and a first mounting groove for mounting the rotating shaft is provided on the valve body above the through groove, and an avoidance groove for avoiding the valve plate is provided between the first mounting groove and the through groove, and fixing parts are provided at both ends of the first mounting groove on the valve plate, and the rotating shaft is limited and rotated in the mounting groove through the fixing parts, and the rotation of the rotating shaft is used to open or close the through groove; the valve plate resetting mechanism includes a second mounting groove, a torsion spring and a torsion spring mounting part provided above the first mounting groove, one end of the torsion spring is connected to the torsion spring mounting part, and the other end abuts against the surface of the valve plate, and the fixing parts are provided at both ends of the second mounting groove on the valve plate, and the torsion spring mounting part is limited in the mounting groove through the fixing parts, and the torsion spring is used to continuously provide pressure on the valve plate to drive the valve plate to reset to close the through groove.

3. The irrigation check valve according to claim 2, characterized in that: The fixing member includes a fixing bolt and a fixing gasket. Circular grooves are arranged on the valve plate at both ends of the first mounting groove and the second mounting groove. The fixing gasket is arranged in the circular groove. The fixing gasket is fixed to the valve plate by the fixing bolt.

4. The irrigation check valve according to claim 1, characterized in that: The valve plate opening adjustment mechanism includes a first mounting member, an adjusting cable and an adjusting cable positioning member, wherein the first mounting member is arranged on the valve plate, the adjusting cable positioning member is arranged on the valve body, one end of the adjusting cable is connected to the first mounting member, and the other end is connected to the adjusting cable positioning member, and the position of the adjusting cable is positioned by the adjusting cable positioning member to position the opening angle of the valve plate.

5. The irrigation check valve according to claim 4, characterized in that: The first mounting member includes a lifting ring, the adjusting rope is in a closed ring shape, the adjusting rope positioning member includes a pig nose buckle, the pig nose buckle is provided with two mounting holes, one end of the adjusting rope is passed through the lifting ring, and the other end is passed through the two mounting holes, and a positioning button is provided on the pig nose buckle, and the adjusting rope can be fixed in the mounting hole through the positioning installation.

6. The irrigation check valve according to claim 5, characterized in that: A plug-in hole for the hand-held piece to be plugged in is provided on the side wall at the top of the valve body along the radial direction from top to bottom, and the lower end of the plug-in hole is located below the bottom of the through groove. The hand-held piece can be movably arranged in the plug-in hole up and down. A positioning piece is provided on the valve body, and the hand-held piece can be moved up and down and fixed in the plug-in hole through the positioning piece.

7. The irrigation check valve according to claim 6, characterized in that: A hand buckle for irrigation personnel to hold is arranged on the top of the hand piece, and wave grooves are arranged on both sides of the hand piece. The wave grooves are arranged along the radial direction of the valve body, and the positioning piece is used to be clamped in the wave groove to fix the hand piece.

8. The irrigation check valve according to claim 7, characterized in that: The positioning member includes a ball plunger, and a threaded hole is provided on the side wall of the valve body at a position corresponding to the plug-in hole. The ball plunger is installed in the threaded hole, and the ball plunger is used to be clamped in the wave groove to fix the handpiece.

9. The irrigation check valve according to claim 8, characterized in that: A slide groove is provided on the hand piece on a side close to the wave groove, and the slide groove is provided along the radial direction of the valve body. A blind hole is provided on the valve body, and the blind hole is provided corresponding to the slide groove. A limit pin is provided in the blind hole, and the limit pin passes through the slide groove. The limit pin cooperates with the slide groove to maintain the connection between the hand piece and the valve body.

10. The irrigation check valve according to claim 1, characterized in that: The water pipe connector is in a tubular shape, and a protrusion is provided on its outer wall circumferentially extending outward, and a plurality of protrusions are provided, and each of the protrusions is arranged at intervals along the axial direction of the water pipe connector.

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