Control valve for irrigation pipeline

Abstract

The control valve for the irrigation pipeline comprises a valve body, water inlets and water outlets, the water inlets are formed in the two sides of the valve body, the water outlets are formed in the side, away from the water inlets, of the valve body, a partition plate is installed in the middle of the interior of the valve body, and water distribution openings are formed in the partition plate. A second sealing block is installed at the top end of the valve body, a fixing rod penetrating through the water distribution opening is arranged in the second sealing block, a limiting mechanism used for adjusting the height of the fixing rod is arranged in the second sealing block, and arc-shaped sealing grooves are formed in the valve body and the partition plate correspondingly. According to the device, the fixing rod drives the second sealing block to move downwards, so that water entering the water inlet can flow to the water outlet from the water distribution port to be discharged, the flowing speed of the water distribution port is higher due to the fact that the second sealing block faces downwards, the structure is easy to operate, and the opening can be conveniently adjusted to be opened.

Description

Technical Field

[0001] The utility model relates to the technical field of irrigation pipelines, in particular to a control valve used for irrigation pipelines. Background Art

[0002] Agricultural irrigation mainly refers to irrigation operations in agricultural cultivation areas. Agricultural irrigation methods can generally be divided into traditional surface irrigation, ordinary sprinkler irrigation and micro-irrigation. The pipelines of agricultural irrigation systems are closed pipes. In some places in the pipeline journey, due to differences in pipeline shape and water level, some pipeline nodes will accumulate a small or large amount of air during the drainage process, and in severe cases, a vacuum will be formed, resulting in poor drainage of the pipeline.

[0003] However, the existing control valves for irrigation pipes have the following problems during use: in the traditional drainage process, the valve body has poor waterproof performance, and the exhaust valve is internally adjusted and the flow rate is inconvenient to adjust, making it not practical. Utility Model Content

[0004] The purpose of the utility model is to provide a control valve for an irrigation pipeline to solve the related problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a control valve for an irrigation pipe, comprising a valve body, a water inlet and a water outlet, wherein water inlets are provided on both sides of the valve body, and a water outlet is provided on a side of the valve body away from the water inlet, a partition plate is installed at a middle position inside the valve body, and a water diversion port is provided inside the partition plate, a second sealing block is installed at the top end of the valve body, and a fixing rod passing through the water diversion port is provided inside the second sealing block, a limiting mechanism for adjusting the height of the fixing rod is provided inside the second sealing block, arc-shaped sealing grooves are provided at both the valve body and the partition plate, and a synchronous sealing mechanism for sealing is installed on the outer wall of the fixing rod.

[0006] The technical solution provides a control valve for an irrigation pipe, wherein the limiting mechanism includes a fixed shaft and a gear, a plurality of tooth blocks are installed on the outer wall of the fixed rod, a gear meshing with the outer wall of the tooth block is installed on the outer wall of the fixed shaft, a plurality of limiting grooves are provided on the outer wall of the fixed shaft, a movable groove is provided inside the second sealing block, and an I-shaped limiting frame inserted into the limiting groove is provided inside the movable groove.

[0007] The technical solution provides a control valve for an irrigation pipeline, wherein the outer wall of the I-shaped limit frame is sleeved with a spring, and one end of the spring is connected to the inner wall of the movable groove.

[0008] The technical solution provides a control valve for an irrigation pipeline, wherein a knob is installed on one side of the fixed shaft, and an outer wall of the knob is provided with anti-slip grooves.

[0009] The technical solution provides a control valve for an irrigation pipe, wherein the synchronous sealing mechanism includes a first sealing block and a second sealing block, the first sealing block is installed on the outer wall of the fixed rod, the second sealing block is installed on the bottom end of the fixed rod, and the outer walls of the second sealing block and the first sealing block are both installed with arc sleeves, and the outer wall of the arc sleeve is adapted to the inner wall of the arc sealing groove.

[0010] Compared with the prior art, the utility model provides a control valve for irrigation pipes, which has the following beneficial effects:

[0011] The utility model compresses the spring position by pulling the I-shaped limit frame upwards, so that the spring position is tightened, and then the knob is turned to drive the gear to rotate, and then the gear is engaged with the outer wall of the second sealing block, so that the fixed rod drives the second sealing block to move downward, so that water at the water inlet can flow from the water diversion port to be discharged at the water outlet. Since the further the second sealing block is downward, the greater the flow rate at the water diversion port position, the structure is simple to operate and is convenient for adjusting the opening.

[0012] The utility model drives the first sealing block and the second sealing block to move downwards and drives the arc sleeve to be inserted into the arc sealing groove, thereby synchronously sealing the position above the fixed rod and the water diversion port. This structure is convenient for increasing the synchronous sealing of the position inside the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0014] Figure 2 For the utility model Figure 1 A schematic diagram of the enlarged structure at point A;

[0015] Figure 3 It is a schematic diagram of the main structure of the utility model.

[0016] In the figure: 1. valve body; 2. water inlet; 3. partition plate; 4. water outlet; 5. water diversion port; 6. fixing rod; 7. first sealing block; 8. second sealing block; 9. arc-shaped sealing groove; 10. arc-shaped sleeve; 11. fixed shaft; 12. gear; 13. movable groove; 14. I-shaped limit frame; 15. limit groove; 16. spring; 17. knob; 18. gear block. DETAILED DESCRIPTION

[0017] 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.

[0018] Embodiment 1, as Figure 1-2 As shown, the utility model provides a technical solution: a control valve for an irrigation pipeline, comprising a valve body 1, a water inlet 2 and a water outlet 4, the water inlets 2 are provided on both sides of the valve body 1, and the water outlet 4 is provided on the side of the valve body 1 away from the water inlet 2, a partition plate 3 is installed at the middle position inside the valve body 1, and a water diversion port 5 is provided inside the partition plate 3, a second sealing block 8 is installed at the top of the valve body 1, and a fixing rod 6 penetrating the water diversion port 5 is provided inside the second sealing block 8, a limiting mechanism for adjusting the height of the fixing rod 6 is provided inside the second sealing block 8, the limiting mechanism comprises a fixed shaft 11 and a gear 12, a plurality of tooth blocks 18 are installed on the outer wall of the fixing rod 6, a gear 12 meshing with the outer wall of the tooth block 18 is installed on the outer wall of the fixing shaft 11, a plurality of limiting grooves 15 are provided on the outer wall of the fixing shaft 11, and the second sealing block 8 is provided with a movable groove 13, and the movable groove 13 is provided with a type limit frame 14 inserted into the limit groove 15. The outer wall of the type limit frame 14 is sleeved with a spring 16, and one end of the spring 16 is connected to the inner wall of the movable groove 13. A knob 17 is installed on one side of the fixed shaft 11, and the outer wall of the knob 17 is provided with anti-slip grooves. By pulling the type limit frame 14 upward to squeeze the position of the spring 16, the position of the spring 16 is tightened, and then the knob 17 is turned to drive the gear 12 to rotate, and then the gear 12 is engaged with the outer wall of the second sealing block 8, so that the fixed rod 6 drives the second sealing block 8 to move downward, so that the water at the water inlet 2 can flow from the water diversion port 5 to the water outlet 4 for discharge. Since the more downward the second sealing block 8 is, the greater the flow rate at the water diversion port 5 is, the structure is simple to operate and convenient for adjusting the opening.

[0019] Embodiment 2, as Figure 1-3As shown, the utility model provides a technical solution: a control valve for irrigation pipelines, including a valve body 1 and a partition plate 3, both of which are provided with an arc-shaped sealing groove 9, and the outer wall of the fixed rod 6 is installed with a synchronous sealing mechanism for sealing, the synchronous sealing mechanism includes a first sealing block 7 and a second sealing block 8, the outer wall of the fixed rod 6 is installed with the first sealing block 7, the bottom end of the fixed rod 6 is installed with the second sealing block 8, and the outer walls of the second sealing block 8 and the first sealing block 7 are both installed with an arc-shaped sleeve 10, the outer wall of the arc-shaped sleeve 10 is adapted to the inner wall of the arc-shaped sealing groove 9, and the second sealing block 8 is driven downward by the second sealing block 8 at the same time, and the arc-shaped sleeve 10 is driven to insert into the arc-shaped sealing groove 9, thereby synchronously sealing the position above the fixed rod 6 and the position of the water diversion port 5, and this structure is convenient for increasing the synchronous sealing of the position inside the valve body 1.

[0020] Working principle: First, turn on the external power supply, and the operator pulls up the industrial limit frame 14 to squeeze the position of the spring 16, so that the position of the spring 16 is tightened, and then the knob 17 is turned to drive the gear 12 to rotate, and then the gear 12 is engaged with the outer wall of the second sealing block 8, so that the fixed rod 6 drives the second sealing block 8 to move downward, so that the water at the water inlet 2 can flow from the water diversion port 5 to the water outlet 4 for discharge. Since the more the second sealing block 8 is moved downward, the greater the flow rate at the water diversion port 5, the structure is simple to operate and easy to adjust the opening. At the same time, the second sealing block 8 is driven downward to drive the first sealing block 7 and the second sealing block 8 to drive the arc sleeve 10 to insert into the arc sealing groove 9, thereby synchronously sealing the position above the fixed rod 6 and the seal of the water diversion port 5. This structure is convenient for increasing the synchronous sealing of the position inside the valve body 1.

[0021] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Simple modifications or equivalent substitutions of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. A control valve for an irrigation pipeline, comprising a valve body (1), a water inlet (2) and a water outlet (4), characterized in that: Water inlets (2) are provided on both sides of the valve body (1), and a water outlet (4) is provided on a side of the valve body (1) away from the water inlet (2); a partition plate (3) is installed at a middle position inside the valve body (1), and a water outlet (5) is provided inside the partition plate (3); a second sealing block (8) is installed at the top end of the valve body (1), and a fixing rod (6) penetrating the water outlet (5) is provided inside the second sealing block (8); a limiting mechanism for adjusting the height of the fixing rod (6) is provided inside the second sealing block (8); arc-shaped sealing grooves (9) are provided on both the valve body (1) and the partition plate (3), and a synchronous sealing mechanism for sealing is installed on the outer wall of the fixing rod (6).

2. A control valve for an irrigation pipeline according to claim 1, characterized in that: The limiting mechanism comprises a fixed shaft (11) and a gear (12); a plurality of tooth blocks (18) are mounted on the outer wall of the fixed rod (6); a gear (12) meshing with the outer wall of the tooth block (18) is mounted on the outer wall of the fixed shaft (11); a plurality of limiting grooves (15) are provided on the outer wall of the fixed shaft (11); a movable groove (13) is provided inside the second sealing block (8); and an I-shaped limiting frame (14) is provided inside the movable groove (13) and is inserted into the limiting groove (15).

3. A control valve for an irrigation pipeline according to claim 2, characterized in that: The outer wall of the I-shaped limiting frame (14) is sleeved with a spring (16), and one end of the spring (16) is connected to the inner wall of the movable groove (13).

4. A control valve for an irrigation pipeline according to claim 2, characterized in that: A rotating knob (17) is installed on one side of the fixed shaft (11), and an outer wall of the rotating knob (17) is provided with anti-slip grooves.

5. A control valve for an irrigation pipeline according to claim 1, characterized in that: The synchronous sealing mechanism comprises a first sealing block (7) and a second sealing block (8), the first sealing block (7) being mounted on the outer wall of the fixed rod (6), the second sealing block (8) being mounted on the bottom end of the fixed rod (6), and the outer walls of the second sealing block (8) and the first sealing block (7) being both mounted with an arc-shaped sleeve (10), the outer wall of the arc-shaped sleeve (10) being adapted to the inner wall of the arc-shaped sealing groove (9).

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