A siphon type measuring and controlling gate valve for irrigation

Abstract

The utility model discloses a siphon type measuring and controlling gate valve for irrigation, comprising a siphon tube, a flow control mechanism and a sealing mechanism; the middle part of the siphon tube is connected to a valve body through a flange, the upper end of the outer surface of the valve body is fixedly connected to a fixing column, and the top end of the fixing column is fixedly connected to a shell; the flow control mechanism comprises a rotating shaft, a valve core 1 and a valve core 2, the rotating shaft is respectively rotatably connected to the front and rear ends of the top wall of the shell, the bottom ends of the rotating shaft extend to the inside of the valve body, the middle part of the rotating shaft at the front end is fixedly sleeved with an angle sensor, and the outer surface of the rotating shaft located in the valve body is respectively fixedly connected to the valve core 1 and the valve core 2. The utility model can ensure that the flow rate of water flow during irrigation reaches the required target, realize the accuracy and stability of flow control, and at the same time can effectively improve the sealing between the two valve cores in the siphon type measuring and controlling gate valve for irrigation when it is stationary.

Description

Technical Field

[0001] The utility model relates to the technical field of gate valves, in particular to a siphon type measuring and controlling gate valve for irrigation. Background Art

[0002] With the development of science and technology, irrigation systems have gradually realized automated control. Automated irrigation systems can be intelligently adjusted according to parameters such as soil moisture, climate conditions, and crop water requirements to achieve precise irrigation management. Siphon-type measurement and control gate valves, as an important component of automated irrigation systems, can achieve precise control of water flow and improve irrigation efficiency.

[0003] The traditional siphon type measuring and controlling gate valve for irrigation uses a single chip microcomputer to control the operation of the motor, and then the motor output shaft drives the valve core to rotate a certain angle, so that the valve is gradually opened or closed; the traditional siphon type measuring and controlling gate valve for irrigation has the following problems: the method of controlling the water flow by a single valve core rotation angle may not provide sufficient accuracy, resulting in poor stability of the water flow and poor sealing after closing. Therefore, a siphon type measuring and controlling gate valve for irrigation is proposed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a siphon type measuring and controlling gate valve for irrigation, which can ensure that the flow rate of water during irrigation reaches the required target and achieve the accuracy and stability of flow control. At the same time, it can effectively improve the sealing between the two valve cores in the siphon type measuring and controlling gate valve for irrigation when it is stationary, and can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a siphon type measuring and controlling gate valve for irrigation, comprising a siphon tube, a flow control mechanism and a sealing mechanism;

[0006] The middle part of the siphon tube is connected to a valve body through a flange, the upper end of the outer surface of the valve body is fixedly connected to a fixing column, and the top end of the fixing column is fixedly connected to a housing;

[0007] The flow control mechanism comprises a rotating shaft, a valve core 1 and a valve core 2, wherein the rotating shaft is rotatably connected to the front and rear ends of the top wall of the housing respectively, the bottom ends of the rotating shafts extend to the inside of the valve body, an angle sensor is fixedly sleeved in the middle of the rotating shaft at the front end, and the valve core 1 and the valve core 2 are fixedly connected to the outer surface of the rotating shaft in the valve body respectively;

[0008] The sealing mechanism is arranged between the valve core 1 and the valve core 2;

[0009] Among them: it also includes a single-chip microcomputer, which is arranged on the right side of the bottom wall of the shell. The single-chip microcomputer is bidirectionally electrically connected with the angle sensor, which can ensure that the flow rate of water during irrigation reaches the required target and achieve the accuracy and stability of flow control. At the same time, it can effectively improve the sealing between the two valve cores in the siphon-type measurement and control gate valve for irrigation when it is stationary.

[0010] Furthermore, it also includes a pillar, which is fixedly connected to the right side of the top end of the outer surface of the valve body. A flow sensor is provided at the top end of the pillar. The detection probe of the flow sensor extends to the interior of the valve body. The flow sensor is bidirectionally electrically connected to the single-chip microcomputer to ensure that the water flow in the irrigation system is within an appropriate range.

[0011] Furthermore, the flow control mechanism also includes a small-diameter pulley and a large-diameter pulley. The small-diameter pulley is fixedly mounted on the upper end of the rotating shaft on the rear side, and the large-diameter pulley is fixedly mounted on the upper end of the rotating shaft on the front side. The small-diameter pulley and the large-diameter pulley are connected by a belt drive to provide a transmission assembly.

[0012] Furthermore, the flow control mechanism also includes a worm, a worm wheel and a rotating shaft. The rotating shaft is rotatably connected between the left and right inner walls of the outer shell. The middle part of the rotating shaft is fixedly connected with a worm. The worm wheel is fixedly sleeved on the upper end of the rotating shaft on the rear side. The worm wheel is meshingly connected with the worm, providing high-precision rotational motion, so that the rotation of the valve core can be controlled very accurately.

[0013] Furthermore, the flow control mechanism also includes a motor, which is installed on the left side of the shell by bolts, the right end of the output shaft of the motor is fixedly connected to the left end of the rotating shaft, and the input end of the motor is electrically connected to the output end of the single-chip microcomputer to drive the flow control mechanism to operate.

[0014] Furthermore, the sealing mechanism includes a card slot one, a card slot two mounting slot, an extrusion block, a sliding column and a rubber strip. The card slot two is opened on the right side of the valve core two, and a rubber strip is provided on the right side of the card slot two. The card slot one is opened on the left side of the valve core one, and a mounting slot is opened on the right inner wall of the card slot one. The sliding holes on the front and rear inner walls of the mounting slot are slidably connected to sliding columns evenly distributed, and one end of the sliding column close to the center of the mounting slot is fixedly connected to an extrusion block, and the inner side surface of the extrusion block is clamped with the outer surface of a rubber strip, which can effectively improve the sealing between the two valve cores.

[0015] Furthermore, the sealing mechanism also includes a spring, which is fixedly connected between one end of the extrusion block away from the center of the installation groove and the adjacent installation groove. The springs are sleeved on the outer surface of the sliding column to ensure a tight connection between the rubber strip and the extrusion block.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The operation of the motor is controlled by the single-chip microcomputer. The output shaft of the motor drives the rotating shaft to rotate, and the rotating shaft drives the worm to rotate. The meshing between the worm and the worm wheel causes the worm wheel to start rotating. The rotation of the worm wheel drives the rotating shaft on the rear side to start rotating. The rotating shaft on the rear side rotates a certain angle, and then drives the valve core 1 to rotate a certain angle. However, while the rotating shaft on the rear side rotates, it drives the small-diameter pulley to start rotating. The rotation of the small-diameter pulley is transmitted to the large-diameter pulley through the belt. The rotation of the large-diameter pulley will drive the rotating shaft on the front side to rotate. The rotation of the rotating shaft on the front side will drive the valve core 2 to rotate, and at the same time drive the rotation of the valve core 1 and the valve core 2. When the valve core 1 and the valve core 2 rotate to the angle threshold of the angle sensor, the signal is transmitted to the single-chip microcomputer. After the single-chip microcomputer makes a judgment, it stops the operation of the motor, and then the water flow can freely pass through the valve body to perform the irrigation task, thereby realizing an automated control system and automatically adjusting the rotation angle of the valve core, which can ensure that the flow rate of water during irrigation reaches the required target and achieve the accuracy and stability of flow control;

[0018] 2. After irrigation is completed, the motor operation is controlled by the single-chip microcomputer to drive the rotating shaft to rotate in the opposite direction, and then the transmission component in the flow control mechanism drives the slots 1 and 2 on the valve core 1 and valve core 2 to gradually approach each other until the rubber strip contacts the chamfered surface of the extrusion block. At this stage, the rubber strip will be continuously compressed to ensure that it is tightly connected with the extrusion block, and then the rotating shaft is continuously rotated to drive the rotating shaft and the valve core 1 and valve core 2 to continue to approach each other until the rubber strip is clamped with the extrusion block. At the same time, when the extrusion block is subjected to the extrusion force, the extrusion block and the sliding column are driven to slide into the sliding hole through the expansion and contraction of the spring, making room for the rubber strip, ensuring the tight connection between the rubber strip and the extrusion block. When the valve core 1 and the valve core 2 are horizontal, the rubber strip is tightly connected to the extrusion block at this time, thereby effectively improving the sealing between the two valve cores in the siphon type measurement and control gate valve for irrigation when it is stationary. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 It is a schematic structural diagram of the right side section of the utility model;

[0021] Figure 3 It is a schematic diagram of the structure of the utility model enlarged at A;

[0022] Figure 4 It is a partial cross-sectional structural schematic diagram of the valve body of the utility model;

[0023] Figure 5 It is a schematic diagram of the structure enlarged at B of the utility model.

[0024] In the figure: 1 siphon, 2 flow control mechanism, 21 motor, 22 rotating shaft, 23 worm, 24 worm wheel, 25 small diameter pulley, 26 large diameter pulley, 27 rotating shaft, 28 valve core 1, 29 valve core 2, 3 housing, 4 flow sensor, 5 pillar, 6 fixed pillar, 7 single chip microcomputer, 8 angle sensor, 9 sealing mechanism, 91 slot 1, 92 slot 2, 93 mounting slot, 94 extrusion block, 95 sliding column, 96 spring, 97 rubber strip, 10 valve body. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-5 This embodiment provides a technical solution: a siphon type measuring and controlling gate valve for irrigation, including a siphon tube 1, a flow control mechanism 2 and a sealing mechanism 9; it also includes a single chip computer 7, which is arranged on the right side of the bottom wall of the shell 3, and the single chip computer 7 is bidirectionally electrically connected to the angle sensor 8.

[0027] The middle part of the siphon 1 is connected to a valve body 10 through a flange, the upper end of the outer surface of the valve body 10 is fixedly connected to a fixing column 6, the top of the fixing column 6 is fixedly connected to a housing 3, and also includes a support column 5, the support column 5 is fixedly connected to the right side of the top end of the outer surface of the valve body 10, and the top of the support column 5 is provided with a flow sensor 4, the detection probe of the flow sensor 4 extends to the inside of the valve body 10, the flow sensor 4 is bidirectionally electrically connected to the single-chip microcomputer 7, and then the flow rate of the water flow can be monitored in real time through the flow sensor 4 to ensure that the water flow in the irrigation system is within a suitable range;

[0028] Among them, the flow control mechanism 2 includes a rotating shaft 22, a valve core 1 28 and a valve core 29. The rotating shaft 22 is rotatably connected to the front and rear ends of the top wall of the shell 3 respectively. The bottom end of the rotating shaft 22 extends to the inside of the valve body 10. The middle part of the rotating shaft 22 at the front end is fixedly sleeved with an angle sensor 8. The outer surface of the rotating shaft 22 located in the valve body 10 is fixedly connected with the valve core 1 28 and the valve core 2 29 respectively; the flow control mechanism 2 also includes a small-diameter pulley 25 and a large-diameter pulley 26. The small-diameter pulley 25 is fixedly sleeved on the upper end of the rotating shaft 22 on the rear side, and the large-diameter pulley 26 is fixedly sleeved on the upper end of the rotating shaft 22 on the front side. The small-diameter pulley 25 is fixedly sleeved on the upper end of the rotating shaft 22 on the front side. The pulley 25 is connected to the large-diameter pulley 26 through a belt drive; the flow control mechanism 2 also includes a worm 23, a worm wheel 24 and a rotating shaft 27, the rotating shaft 27 is rotatably connected between the left and right inner walls of the outer shell 3, the middle part of the rotating shaft 27 is fixedly connected with the worm 23, the worm wheel 24 is fixedly sleeved on the upper end of the rotating shaft 22 on the rear side, and the worm wheel 24 is meshingly connected with the worm 23; the flow control mechanism 2 also includes a motor 21, the motor 21 is installed on the left side of the outer shell 3 by bolts, the right end of the output shaft of the motor 21 is fixedly connected to the left end of the rotating shaft 27, and the input end of the motor 21 is electrically connected to the output end of the single-chip computer 7.

[0029] Among them, the sealing mechanism 9 is arranged between the valve core 1 28 and the valve core 2 29, and the sealing mechanism 9 includes a card slot 1 91, a card slot 2 92 mounting slot 93, an extrusion block 94, a sliding column 95 and a rubber strip 97. The card slot 2 92 is arranged on the right side of the valve core 29, and a rubber strip 97 is arranged on the right side of the card slot 2 92. The card slot 1 91 is arranged on the left side of the valve core 1 28. The right inner wall of the card slot 1 91 is arranged with a mounting slot 93. The sliding holes of the front and rear inner walls of the mounting slot 93 are slidably connected with uniformly distributed sliding columns 95. The end of the sliding column 95 close to the center of the mounting slot 93 is fixedly connected with an extrusion block 94, and the inner side surface of the extrusion block 94 is clamped with the outer surface of a rubber strip 97; the sealing mechanism 9 also includes a spring 96, which is fixedly connected between the end of the extrusion block 94 away from the center of the mounting slot 93 and the adjacent mounting slot 93, and the spring 96 is sleeved on the outer surface of the sliding column 95.

[0030] The working principle of the utility model is as follows:

[0031] When the opening angles of valve core 1 28 and valve core 2 29 need to be precisely controlled during infusion, the angle sensor 8 and the single chip microcomputer 7 are first set with an angle threshold;

[0032] Then, the siphon tube 1 is inserted into the water source, and then the single chip microcomputer 7 is used to control the operation of the motor 21. The output shaft of the motor 21 drives the rotating shaft 27 to rotate, and the rotating shaft 27 drives the worm 23 to rotate. The meshing between the worm 23 and the worm wheel 24 causes the worm wheel 24 to start rotating. The rotation of the worm wheel 24 drives the rear rotating shaft 22 to start rotating. The rear rotating shaft 22 rotates a certain angle, and then drives the valve core 1 28 to rotate a certain angle. However, while the rear rotating shaft 22 rotates, the small diameter pulley 25 starts to rotate. The rotation of the small diameter pulley 25 is transmitted to the large diameter pulley 26 through the belt. The rotation of the large diameter pulley 26 will drive the front rotating shaft 22 to rotate. The rotation of the front rotating shaft 22 will drive the valve core 2 29 to rotate. At the same time, it drives the rotation of the valve core 1 28 and the valve core 2 29, so that the card slot 1 91 and the card slot 2 92 are gradually separated, thereby opening the flow channel and allowing water to flow through.

[0033] As the card slot 1 91 and the card slot 2 92 separate, the extrusion force between the rubber strip 97 and the extrusion block 94 is cancelled, and the extrusion block 94 and the slide column 95 begin to rebound under the action of the spring 96. As the valve core 1 28 and the valve core 29 continue to rotate, the card slot 1 91 and the card slot 2 92 are completely separated. When the valve core 1 28 and the valve core 29 rotate to the angle threshold of the angle sensor 8, the signal is transmitted to the single-chip microcomputer 7. After the single-chip microcomputer 7 makes a judgment, it stops the operation of the motor 21, and then the water flow can freely pass through the valve body 10 to perform the irrigation task, thereby realizing an automated control system, automatically adjusting the rotation angle of the valve core, ensuring that the flow rate of the water flow during irrigation reaches the required target, and realizing the accuracy and stability of the flow control;

[0034] Then, the flow rate of the water flow can be monitored in real time through the flow sensor 4 to ensure that the water flow in the irrigation system is within a suitable range. When the irrigation is completed, the motor 21 is controlled by the single chip microcomputer 7 to drive the rotating shaft 27 to rotate in the opposite direction, and then the transmission component in the flow control mechanism 2 drives the card slot 1 91 and the card slot 2 92 on the valve core 1 28 and the valve core 2 29 to gradually approach each other until the rubber strip 97 contacts the chamfered surface of the extrusion block 94. At this stage, the rubber strip 97 will be continuously compressed to ensure that it is tightly connected to the extrusion block 94, and then the rotating shaft 27 will be continuously rotated. The rotating shaft 22, valve core 1 28 and valve core 29 are driven to continue to approach each other until the rubber strip 97 is engaged with the extrusion block 94. At the same time, when the extrusion block 94 is subjected to the extrusion force, the spring 96 is extended and retracted to drive the extrusion block 94 and the sliding column 95 to slide into the sliding hole, thereby making room for the rubber strip 97 and ensuring the tight connection between the rubber strip 97 and the extrusion block 94. When the valve core 1 28 and valve core 29 are horizontal, the rubber strip 97 is tightly connected to the extrusion block 94, thereby effectively improving the sealing between the two valve cores in the siphon type measurement and control gate valve for irrigation when it is stationary.

[0035] It is worth noting that the specific model of the single chip microcomputer 7 disclosed in the above embodiment is S7-200, the motor 21 can be selected from D180M-0160030B-E, the flow sensor 4 can be selected from LCD-06ZAT, and the angle sensor 8 can be selected from P3022-V1-CW360. The single chip microcomputer 7 controls the motor 21, the flow sensor 4 and the angle sensor 8 using methods commonly used in the prior art.

[0036] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A siphon type measuring and controlling gate valve for irrigation, characterized in that: It comprises a siphon (1), a flow control mechanism (2) and a sealing mechanism (9); The middle part of the siphon tube (1) is connected to a valve body (10) via a flange, the upper end of the outer surface of the valve body (10) is fixedly connected to a fixing column (6), and the top end of the fixing column (6) is fixedly connected to the outer shell (3); The flow control mechanism (2) comprises a rotating shaft (22), a valve core 1 (28) and a valve core 2 (29); the rotating shaft (22) is rotatably connected to the front and rear ends of the top wall of the housing (3), the bottom end of the rotating shaft (22) extends to the inside of the valve body (10), the middle part of the rotating shaft (22) at the front end is fixedly sleeved with an angle sensor (8), and the outer surface of the rotating shaft (22) located in the valve body (10) is fixedly connected to the valve core 1 (28) and the valve core 2 (29); The sealing mechanism (9) is arranged between the valve core 1 (28) and the valve core 2 (29); The invention also includes a single chip microcomputer (7), which is arranged on the right side of the bottom wall of the housing (3), and the single chip microcomputer (7) is bidirectionally electrically connected to the angle sensor (8).

2. The siphon type measuring and controlling gate valve for irrigation according to claim 1, characterized in that: It also includes a support (5), which is fixedly connected to the right side of the top end of the outer surface of the valve body (10), and a flow sensor (4) is provided at the top end of the support (5). The detection probe of the flow sensor (4) extends into the interior of the valve body (10), and the flow sensor (4) is bidirectionally electrically connected to the single-chip computer (7).

3. The siphon type measuring and controlling gate valve for irrigation according to claim 1, characterized in that: The flow control mechanism (2) further comprises a small-diameter pulley (25) and a large-diameter pulley (26); the small-diameter pulley (25) is fixedly sleeved on the upper end of the rear rotating shaft (22); the large-diameter pulley (26) is fixedly sleeved on the upper end of the front rotating shaft (22); the small-diameter pulley (25) and the large-diameter pulley (26) are connected via a belt transmission.

4. The siphon type measuring and controlling gate valve for irrigation according to claim 1, characterized in that: The flow control mechanism (2) further comprises a worm (23), a worm wheel (24) and a rotating shaft (27); the rotating shaft (27) is rotatably connected between the left and right inner walls of the housing (3); the middle portion of the rotating shaft (27) is fixedly connected to the worm (23); the worm wheel (24) is fixedly sleeved on the upper end of the rear rotating shaft (22); and the worm wheel (24) is meshingly connected to the worm (23).

5. The siphon type measuring and controlling gate valve for irrigation according to claim 4, characterized in that: The flow control mechanism (2) further comprises a motor (21), which is mounted on the left side of the housing (3) by means of bolts, the right end of the output shaft of the motor (21) is fixedly connected to the left end of the rotating shaft (27), and the input end of the motor (21) is electrically connected to the output end of the single-chip computer (7).

6. The siphon type measuring and controlling gate valve for irrigation according to claim 1, characterized in that: The sealing mechanism (9) comprises a first card slot (91), a second card slot (92), a mounting slot (93), an extrusion block (94), a sliding column (95) and a rubber strip (97). The second card slot (92) is arranged on the right side of the second valve core (29). The right side of the second card slot (92) is provided with a rubber strip (97). The first card slot (91) is arranged on the left side of the first valve core (28). The right inner wall of the first card slot (91) is provided with a mounting slot (93). The sliding holes on the front and rear inner walls of the mounting slot (93) are slidably connected to the sliding columns (95) evenly distributed. One end of the sliding column (95) close to the center of the mounting slot (93) is fixedly connected to the extrusion block (94). The inner side surface of the extrusion block (94) is clamped with the outer surface of a rubber strip (97).

7. The siphon type measuring and controlling gate valve for irrigation according to claim 6, characterized in that: The sealing mechanism (9) further comprises a spring (96), wherein the spring (96) is fixedly connected between one end of the extrusion block (94) away from the center of the mounting groove (93) and an adjacent mounting groove (93), and the spring (96) is sleeved on the outer surface of the sliding column (95).

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