Automatic control device for irrigation valve switch

Abstract

This utility model discloses an automatic control device for irrigation valve switching, including a mounting base, a housing, and an electric mechanism. The mounting base is mounted on a diaphragm valve, which contains a control diaphragm for controlling the opening and closing of a fluid pipeline. The electric mechanism is housed in the mounting base and includes a motor. The motor's output end has a drive gear that meshes with a gear disc for transmission. The gear disc drives a swing control to reciprocate left and right around a support shaft via an eccentric rotating shaft. A drive rod is movably connected to each side of the swing control, and the drive rod is used to press down on the control diaphragm to close the corresponding fluid pipeline. A control groove is provided on the upper part of the swing control, and an eccentric control rod is connected in the control groove. This utility model utilizes a motor-driven swing mechanism to reliably achieve automatic valve opening and closing control, ensuring reliable automatic control operation. Furthermore, by switching the control lever to different positions, automatic or manual opening and closing of the valve can be achieved, making switching convenient.

Description

Technical Field

[0001] This utility model relates to the field of valve control device technology, and in particular to an automatic control device for the switching on and off of an irrigation valve. Background Technology

[0002] In agricultural irrigation systems, valves that are easy to automatically control are often used. Some of these automatic control valves have small pipe cross-sections and small fluid flow rates, making them unsuitable for conventional ball valves, butterfly valves, or gate valves. They require diaphragm valve structures to control the opening and closing of fluid pipelines. To facilitate automatic control, the opening and closing of fluid pipelines require automatic actuators.

[0003] Common automatic actuators include electromagnets, cylinders, or motors. When using a motor, a well-designed actuating mechanism is needed at the motor's output end to reliably open and close the valve. Furthermore, it is easy to switch the motor's actuating mechanism when manual operation is required, avoiding interference between manual and automatic modes. Utility Model Content

[0004] To address the aforementioned problems, the present invention aims to provide an automatic control device for the switching of irrigation valves, which includes a manual / automatic switching mechanism and a swing mechanism in the automatic actuator, enabling reliable automatic switching control of the valves and providing convenient and reliable operation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An automatic control device for switching on and off an irrigation valve includes a mounting base, a housing, and an electric mechanism. The mounting base is mounted on a diaphragm valve, which contains a control diaphragm for controlling the switching of a fluid pipeline. The electric mechanism is located in the mounting base and includes a motor. The output end of the motor has a drive gear that meshes with a gear disk for transmission. The gear disk drives a swing control to swing back and forth around a support shaft via an eccentric rotating shaft. Each side of the swing control is movably connected to a drive rod, which is used to press down the control diaphragm to close the corresponding fluid pipeline.

[0007] Furthermore, the swing control is provided with two driving springs, one end of each driving spring abuts against the swing control, and the other end of each driving spring abuts against the eccentric shaft in the eccentric rotating shaft.

[0008] Furthermore, the gear disk is provided with an arc-shaped groove, and the eccentric rotating shaft is provided with a rotating shaft rod connected to the eccentric shaft rod. The rotating shaft rod is sleeved in the arc-shaped groove, and the gear disk drives the eccentric rotating shaft to swing, thereby driving the swing control to swing back and forth.

[0009] Furthermore, the eccentric shaft is rotatably supported in the mounting base box via a central shaft.

[0010] Furthermore, the upper part of the swing control is provided with a control groove, and an eccentric control rod is connected in the control groove. The eccentric control rod is rotatably disposed in the housing, and the lower end of the eccentric control rod is provided with a switching control lever. When the switching control lever rotates to the center of the control groove, the motor can drive the swing control to automatically reciprocate through the drive gear, gear disk and eccentric shaft. When the switching control lever rotates to one side of the control groove, the switching control lever directly pushes the swing control to swing to the left or right.

[0011] Furthermore, the upper end of the eccentric control lever is provided with a position indicator, and an operation knob is provided outside the position indicator.

[0012] Furthermore, the swing control has protrusions on both sides for pushing the drive rod.

[0013] Furthermore, the mounting box is equipped with a circuit module connected to the motor control.

[0014] Furthermore, the two ends of the gear disk are rotatably supported in the mounting base box, and the gear disk is provided with internal teeth that mesh with the driving teeth.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model has an active gear at the motor output end that meshes with a gear disk for transmission. The gear disk then drives the swing control to swing back and forth around the support shaft via an eccentric rotating shaft. Each side of the swing control is connected to a drive rod. By moving the drive rod downwards, the diaphragm valve is controlled to close the corresponding fluid pipeline. The swing control has a compact structure, and the motor-driven swing mechanism can reliably realize the automatic opening and closing control of the valve, and the automatic control operation is reliable.

[0017] 2. The swing control of this utility model has a groove at the top, and an eccentric control rod is connected in the groove. The lower end of the eccentric control rod is provided with a switching control lever. By rotating the switching control lever to different positions, the valve can be automatically controlled or manually opened and closed, which is convenient to use. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the automatic control device for the irrigation valve switch of this utility model;

[0019] Figure 2 for Figure 1 A 3D schematic diagram after the outer shell has been removed;

[0020] Figure 3 for Figure 2A perspective view of one of the rear views after removing the mounting box and operating knobs;

[0021] Figure 4 for Figure 2 A three-dimensional schematic diagram of the second rear view after removing the mounting box and operation knob;

[0022] Figure 5 This is a three-dimensional schematic diagram of the gear disk of this utility model;

[0023] Figure 6 This is a three-dimensional schematic diagram of the eccentric rotating shaft of this utility model;

[0024] Figure 7 This is a three-dimensional schematic diagram of the swing control of this utility model;

[0025] Figure 8 This is a three-dimensional schematic diagram of the eccentric control rod of this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Mounting base box; 2. Housing; 3. Electric mechanism; 31. Motor; 32. Drive gear; 33. Gear disk; 331. Arc groove; 34. Eccentric rotating shaft; 341. Eccentric shaft rod; 342. Rotating shaft rod; 35. Swing control; 351. Control groove; 352. Boss; 36. Support shaft; 37. Drive rod; 38. Drive spring; 39. Central shaft; 4. Diaphragm valve; 41. Control diaphragm; 5. Eccentric control rod; 51. Switching control lever; 52. Position indicator; 6. Operating knob. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0029] See Figure 1-8As shown, an automatic control device for an irrigation valve includes a mounting base 1, a housing 2, and an electric mechanism 3. The mounting base 1 is mounted on a diaphragm valve 4, which contains a control diaphragm 41 for controlling the switch of a fluid pipeline. The electric mechanism 3 is housed in the mounting base 1 and includes a motor 31. The mounting base 1 contains a circuit module connected to the motor 31, which includes a control circuit and a power-off capacitor. The output end of the motor 31 has a drive gear 32 that meshes with a gear disk 33. The two ends of the gear disk 33 are rotatably supported in the mounting base 1. The gear disk 33 contains... The gear disk 33 has internal teeth that mesh with the active gear 32. The gear disk 33 drives the swing control 35 to swing back and forth around the support shaft 36 via the eccentric rotating shaft 34. Each side of the swing control 35 is movably connected to a drive rod 37. The drive rod 37 is used to press down the control diaphragm 41 to close the corresponding fluid pipeline. The swing control 35 is provided with two drive springs 38. One end of the two drive springs 38 abuts against the swing control 35, and the other end of the two drive springs 38 abuts against the eccentric shaft 341 in the eccentric rotating shaft 34. The eccentric shaft 341 is rotatably supported in the mounting base box 1 via the central shaft 39. The gear disk 33 has an arc-shaped groove 331, and the eccentric rotating shaft 34 has a rotating shaft 342 connected to the eccentric shaft 341. The rotating shaft 342 is sleeved in the arc-shaped groove 331. The gear disk 33 drives the eccentric rotating shaft 34 to swing through the eccentric shaft 341 and the drive spring 38, thereby driving the swing control 35 to swing back and forth.

[0030] Furthermore, the upper part of the swing control 35 is provided with a control groove 351, and an eccentric control rod 5 is connected in the control groove 351. The eccentric control rod 5 is rotatably disposed in the outer shell 2. The outer shell 2 is provided with a perforated flange for fixing the eccentric control rod 5. The lower end of the eccentric control rod 5 is provided with a switching control lever 51. When the switching control lever 51 rotates to the center of the control groove 351, the motor 31 can drive the swing control 35 to automatically reciprocate through the drive gear 32, the gear disk 33 and the eccentric rotating shaft 34. When the switching control lever 51 rotates to one side of the control groove 351, the switching control lever 51 directly pushes the swing control 35 to swing to the left or right. The two sides of the swing control 35 are provided with bosses 352 for pushing the drive rod 37. The upper end of the eccentric control rod 5 is provided with a position indicator 52, and the position indicator 52 is provided with an operation knob 6 for easy operation.

[0031] The working principle of this utility model is as follows:

[0032] In automatic mode, the control terminal sends a signal to the circuit module to control the rotation of the motor 31, and the active gear 32 also rotates accordingly, meshing with the gear disk 33 to rotate. The gear disk 33 pushes the eccentric shaft 34 to rotate through the arc groove 331. The eccentric shaft 34 then drives the swing control 35 to swing around the support shaft 36. After swinging, the swing control 35 presses down one drive rod 37 to close the fluid pipeline corresponding to the control diaphragm 41, while the other drive rod 37 is pushed up by the control diaphragm 41 to realize the automatic opening and closing of the valve.

[0033] When manual control is required, the eccentric control lever 5 is rotated by operating the knob 6, causing the switching control lever 51 in the eccentric control lever 5 to push the swing control 35 to swing left or right, so that the valve is in the open or closed position. At this time, the control motor 31 cannot rotate to drive the swing control 35 to swing automatically, so as to avoid accidents.

[0034] The above description is only a specific embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural transformations made based on the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An automatic control device for irrigation valve switch, comprising a mounting base box (1), a shell (2) and an electric mechanism (3), the mounting base box (1) is arranged on a diaphragm valve (4), the diaphragm valve (4) is provided with a control diaphragm (41) for controlling the switch of a fluid pipeline, characterized in that: The electric mechanism (3) is located in the mounting box (1). The electric mechanism (3) includes a motor (31). The output end of the motor (31) is provided with an active tooth (32). The active tooth (32) meshes with a gear disk (33) for transmission. The gear disk (33) drives the swing control (35) to swing back and forth around the support shaft (36) through an eccentric rotating shaft (34). Each side of the swing control (35) is movably connected to a drive rod (37). The drive rod (37) is used to press down the control diaphragm (41) to close the corresponding fluid pipeline.

2. The automatic control device for switching on and off an irrigation valve according to claim 1, characterized in that: The swing control (35) is provided with two driving springs (38). One end of the two driving springs (38) abuts against the swing control (35), and the other end of the two driving springs (38) abuts against the eccentric shaft (341) in the eccentric rotating shaft (34).

3. The automatic control device for switching on and off an irrigation valve according to claim 2, characterized in that: The gear disk (33) is provided with an arc-shaped groove (331), and the eccentric rotating shaft (34) is provided with a rotating shaft (342) connected to the eccentric shaft (341). The rotating shaft (342) is sleeved in the arc-shaped groove (331). The gear disk (33) drives the eccentric rotating shaft (34) to swing, thereby driving the swing control (35) to swing back and forth.

4. The automatic control device for switching on and off an irrigation valve according to claim 2, characterized in that: The eccentric shaft (341) is rotatably supported in the mounting base box (1) via the central shaft (39).

5. An automatic control device for switching on and off an irrigation valve according to claim 1 or 2, characterized in that: The upper part of the swing control (35) is provided with a control groove (351), and an eccentric control rod (5) is connected in the control groove (351). The eccentric control rod (5) is rotatably installed in the outer shell (2). The lower end of the eccentric control rod (5) is provided with a switching control lever (51). When the switching control lever (51) rotates to the center of the control groove (351), the motor (31) can drive the swing control (35) to swing automatically back and forth through the active gear (32), the gear disk (33) and the eccentric rotating shaft (34). When the switching control lever (51) rotates to one side of the control groove (351), the switching control lever (51) directly pushes the swing control (35) to swing to the left or right.

6. The automatic control device for switching on and off an irrigation valve according to claim 5, characterized in that: The upper end of the eccentric control rod (5) is provided with a position indicator (52), and an operation knob (6) is provided outside the position indicator (52).

7. The automatic control device for switching on and off an irrigation valve according to claim 1, characterized in that: The swing control (35) has protrusions (352) on both sides for pushing the drive rod (37).

8. The automatic control device for switching on and off an irrigation valve according to claim 1, characterized in that: The mounting box (1) is equipped with a circuit module that is connected to the motor (31) for control.

9. The automatic control device for switching on and off an irrigation valve according to claim 1, characterized in that: The two ends of the gear disk (33) are rotatably supported in the mounting base box (1), and the gear disk (33) is provided with internal teeth that mesh with the driving teeth (32).

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