Fixed water level monitoring pointer

Abstract

The utility model belongs to the technical field of paddy field irrigation, and discloses a fixed water level monitoring pointer which comprises a positioning rod, a plurality of positioning rings for indicating the water level are movably arranged on the positioning rod, and the positioning rings are arranged corresponding to scale marks arranged on the positioning rod. The positioning ring comprises a first semi-ring and a second semi-ring which are detachably connected, the first semi-ring and the second semi-ring are arranged around the positioning rod, and a plurality of locking buckles used for locking are arranged between the first semi-ring and the second semi-ring; the locking buckle comprises a locking plate rotationally connected to the first half ring, a fixing locking plate corresponding to the locking plate is arranged on the second half ring, and the locking plate and the fixing locking plate are arranged in a locking mode. The saline-alkali paddy field water level monitoring device is simple in structure and convenient to use, the overall design is optimized, the water level in the saline-alkali paddy field can be accurately monitored, the flexibility and the adjustability are high, the structural stability and the durability of the whole device are enhanced, recycling is conveniently achieved, and follow-up planting is not affected.

Description

Technical Field

[0001] This utility model belongs to the field of paddy field irrigation technology, and in particular relates to a fixed water level monitoring pointer. Background Technology

[0002] In rice cultivation on saline-alkali land, there are inevitably micro-topography within the saline-alkali land. During the irrigation management of paddy fields, the insufficient precision of water level control due to micro-topography can affect the growth of rice. Therefore, accurate water level monitoring is crucial for ensuring the irrigation effect of saline-alkali paddy fields with high soil salinity and for conserving water resources.

[0003] Current irrigation management of saline-alkali paddy fields has recognized the importance of accurate water level monitoring in preventing salt accumulation in micro-topography. Sensors for real-time water level monitoring are available on the market, but these water level gauges are expensive and require significant maintenance. Equipping each paddy field with a water level gauge is clearly impractical in terms of cost and maintenance. Furthermore, real-time water level monitoring cannot indicate whether the current water level is reasonable. In the early stages of rice growth, when the water level in the field is clearly visible, farmers can directly estimate whether the water level is reasonable through visual observation. However, this method is not very accurate. As the rice tillers and grows, it becomes impossible to visually observe the overall water level in the field. Farmers can only rely on experience and intuition to judge whether the water level is reasonable and manage irrigation and drainage accordingly. This can easily lead to water levels that are too low, exacerbating the salinity stress on the rice, or water levels that are too high, wasting water resources and increasing the risk of erosion of the paddy field embankments.

[0004] Therefore, this application designs a fixed water level monitoring pointer to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model proposes a fixed water level monitoring pointer, which solves the problems of high cost and maintenance cost of water level gauges, and the inability to indicate the key water level for reasonable irrigation of saline-alkali paddy fields and whether the current water level is reasonable.

[0006] To achieve the above objectives, this utility model provides a fixed water level monitoring pointer, including a positioning rod, on which a plurality of positioning rings indicating the water level are movably disposed, and the positioning rings are corresponding to the scale lines disposed on the positioning rod;

[0007] The positioning ring includes a detachably connected first half-ring and a second half-ring, which surround the positioning rod. A plurality of locking buckles for locking are provided between the first half-ring and the second half-ring.

[0008] The locking buckle includes a locking plate rotatably connected to the first half-ring, and a fixed locking plate corresponding to the locking plate is provided on the second half-ring, and the locking plate and the fixed locking plate are locked together.

[0009] Preferably, a first mounting seat is provided on the first half ring, and a second mounting seat is fixedly connected to the end of the locking plate. The second mounting seat is rotatably connected to the first mounting seat through a locking shaft.

[0010] Preferably, the bottom end of the locking plate is provided with a movable locking plate corresponding to the fixed locking plate, and the movable locking plate is engaged with the fixed locking plate.

[0011] Preferably, the fixed locking plate has a plurality of locking tooth grooves arranged side by side on the side away from the first semi-ring, and the movable locking plate has a locking rack adapted to the locking tooth grooves on its side wall, and the locking rack is engaged in the locking tooth grooves.

[0012] Preferably, a guide rod is fixedly connected to the end of the first half-ring, and a guide groove adapted to the guide rod is opened on the end of the second half-ring facing the first half-ring. The guide rod is inserted into the guide groove and slidably connected to the guide groove.

[0013] Preferably, a limiting groove is provided at the bottom of the inner cavity of the guide groove (16), a limiting plate is slidably connected in the limiting groove, and the guide rod extends into the limiting groove and is fixedly connected to the limiting plate.

[0014] Preferably, a return spring is fixedly connected to the bottom end of the limiting groove, and the return spring is fixedly connected to the limiting plate.

[0015] Preferably, the positioning rod includes a rod body, the scale lines are formed on the rod body, and the first half-ring and the second half-ring slide on the rod body.

[0016] Preferably, the positioning rod further includes a top plate and a rod head, the top plate being detachably connected to the top end of the rod body, and the pyramidal rod head being detachably connected to the bottom end of the rod body.

[0017] Preferably, the major diameter of the top of the rod head is greater than the outer diameter of the rod body.

[0018] Compared with the prior art, this utility model has the following advantages and technical effects: This utility model discloses a fixed water level monitoring pointer that can be temporarily inserted into the field to monitor the water level in saline-alkali paddy fields; by using several positioning rings that indicate the water level movablely on the positioning rod, combined with the scale lines, the water level indication position can be easily adjusted according to actual needs, with strong adaptability and high positioning accuracy; the positioning rings are designed as a detachable first half-ring and a second half-ring, enhancing the flexibility of use and adjustment; the locking buckle is designed between the first half-ring and the second half-ring. However, the first and second half-rings can be loosened and locked. When loosened, they can be flexibly adjusted, while when locked, they are firmly locked onto the positioning rod, ensuring the positioning ring is securely locked on the positioning rod and preventing the indicated position from shifting due to water flow impact or other environmental factors. The locking buckle includes a locking plate, a fixed locking plate, and a movable locking plate, which can easily lock and loosen the locking buckle, making it flexible and convenient, and simplifying the installation and maintenance process. The positioning ring is set to correspond with the scale lines on the positioning rod, allowing users to read water level information more accurately.

[0019] This utility model has a simple structure, low cost, and is easy to use. It has optimized the overall design and can achieve accurate monitoring of water levels in saline-alkali paddy fields. It can also indicate the key water level for reasonable irrigation of saline-alkali paddy fields and whether the current water level is reasonable. It is not affected by the obstruction of vision by rice growth, has high flexibility and adjustability, and the entire device is stable, durable, and easy to reuse without affecting subsequent planting. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0021] Figure 1 This is an axial view of the fixed water level monitoring pointer of this utility model;

[0022] Figure 2 This utility model Figure 1 A magnified view of part A in the image;

[0023] Figure 3 This is a schematic diagram of the locking buckle structure of this utility model;

[0024] Figure 4 This utility model Figure 2 A magnified view of part B in the image;

[0025] In the diagram: 1. Positioning rod; 2. Positioning ring; 3. Scale line; 4. First half ring; 5. Second half ring; 6. Locking buckle; 7. Locking plate; 8. Fixed locking plate; 9. First mounting base; 10. Second mounting base; 11. Locking shaft; 12. Movable locking plate; 13. Locking tooth groove; 14. Locking rack; 15. Guide rod; 16. Guide groove; 17. Limiting groove; 18. Limiting plate; 19. Return spring; 20. Rod body; 21. Top plate; 22. Rod head. Detailed Implementation

[0026] In existing technologies, even with high-level irrigation and drainage management, rice plants still experience some degree of salinity stress due to soil salt content. In the presence of micro-topography—where the field surface is not perfectly level but exhibits gentle undulations—based on the fundamental principle of water-salt transport ("salt follows water"), at relatively high locations, if irrigation fails to maintain continuous waterlogging and the soil remains exposed above the water surface for an extended period, salt will rapidly accumulate in the exposed soil due to intense surface evaporation. This leads to even more severe salinity stress on the rice plants, hindering their growth and potentially causing them to wither. The main reason for this undulating micro-topography is that mechanical leveling before transplanting cannot achieve a perfectly level surface due to the precision required. Furthermore, with increasing demands for automated farming, paddy fields are evolving into larger plots; the larger the plot, the more difficult mechanical leveling becomes, resulting in more pronounced undulations. Therefore, irrigation and drainage management in saline-alkali paddy fields must pay close attention to addressing the negative impacts of undulating micro-topography to avoid yield reductions due to improper water level management.

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Reference Figures 1-4 As shown, this embodiment provides a fixed water level monitoring pointer, including a positioning rod 1, on which a plurality of positioning rings 2 indicating water level are movably disposed, and the positioning rings 2 are correspondingly disposed with scale lines 3 disposed on the positioning rod 1;

[0030] The positioning ring 2 includes a first half ring 4 and a second half ring 5 that are detachably connected. The first half ring 4 and the second half ring 5 are arranged around the positioning rod 1, and a plurality of locking buckles 6 for locking are provided between the first half ring 4 and the second half ring 5.

[0031] The locking buckle 6 includes a locking plate 7 rotatably connected to the first half ring 4, and a fixed locking plate 8 corresponding to the locking plate 7 is provided on the second half ring 5. The locking plate 7 and the fixed locking plate 8 are locked together.

[0032] This utility model discloses a fixed water level monitoring pointer that can be temporarily inserted into fields to monitor the water level in saline-alkali paddy fields. Several positioning rings 2, movable on the positioning rod 1, combined with scale lines 3, allow for convenient adjustment of the water level indicator position according to actual needs, offering strong adaptability and high positioning accuracy. The positioning rings 2 are designed as a detachable first half-ring 4 and a second half-ring 5, enhancing the flexibility of use and adjustment. The locking buckle 6 is designed between the first half-ring 4 and the second half-ring 5. The device can be loosened and locked. When loosened, it allows for flexible adjustment, while when locked, the first half-ring 4 and the second half-ring 5 are securely locked onto the positioning rod 1, ensuring the positioning ring 2 is firmly locked on the positioning rod 1 and preventing positional deviation due to water flow impact or other environmental factors. The locking buckle 6 includes a locking plate 7, a fixed locking plate 8, and a movable locking plate 12, allowing for easy locking and loosening. This flexibility makes installation and maintenance simpler and faster. The positioning ring 2 corresponds to the scale line 3 on the positioning rod 1, enabling users to read water level information more accurately. This utility model has a simple structure, low cost, and is easy to use. The optimized overall design allows for precise monitoring of water levels in saline-alkali paddy fields. It can also indicate the key water level for reasonable irrigation and whether the current water level is reasonable. It is unaffected by the obstruction of view by rice growth, offering high flexibility and adjustability. The entire device is stable, durable, and easily reusable without affecting subsequent planting.

[0033] In one embodiment of this application, the scale line 3 is set on the outer wall of the positioning rod 1, and the reading can be made through the locked positioning ring 2, so as to accurately adjust the distance between adjacent positioning rings 2 and make it more adaptable.

[0034] In one embodiment of this application, the number of positioning rings 2 on the positioning rod 1 is not less than four. The lowest positioning ring 2 can indicate the depth position of this utility model. Its low end is in contact with the ground, which can accurately indicate the depth of the positioning rod 1 inserted into the ground. This can facilitate the repeated positioning of the positioning rod 1 during subsequent monitoring. The two middle positioning rings 2 respectively indicate the low-end suitable water level and the high-end suitable water level for tracking the irrigation process, while the highest positioning ring 2 is used to indicate the maximum allowable water level of the field. When the water level reaches the highest positioning ring 2, drainage is required.

[0035] Through years of practical experience, our research team has analyzed three key water levels for irrigation management of saline-alkali paddy fields:

[0036] 1. The appropriate water level at the lower end corresponds to the second positioning ring 2 from bottom to top, indicating the water level at which the highest point in the field is just covered by water;

[0037] 2. The high-end suitable water level corresponds to the third positioning ring 2 from bottom to top. This water level is based on the low-end suitable water level, plus the design flooding depth of the highest point in the field. The latter is related to the water depth required for the rice growth stage and effective salt suppression, and is generally 3-8cm.

[0038] 3. The maximum allowable water level, corresponding to the topmost positioning ring 2, indicates the highest water level that the paddy field ridges can effectively intercept and maintain. When the real-time water level exceeds this level, drainage must be carried out in a timely manner to prevent the paddy field ridges from being washed away. The reasonable water level for saline-alkali paddy fields should be between the lower suitable water level and the upper suitable water level, and should be kept as close as possible to the upper suitable water level.

[0039] In one embodiment of this application, the distance between adjacent positioning rings 2 can be adjusted according to planting needs and paddy field environment; during adjustment, the first half ring 4 and the second half ring 5 are loosened by locking buckle 6, and then the positioning ring 2 is adjusted into place and locked by locking buckle 6 to make the positioning ring be locked outside the positioning rod 1.

[0040] In a further optimized design, a first mounting base 9 is provided on the first half-ring 4, and a second mounting base 10 is fixedly connected to the end of the locking plate 7. The second mounting base 10 is rotatably connected to the first mounting base 9 via a locking shaft 11. A movable locking plate 12, corresponding to the fixed locking plate 8, is provided at the bottom of the locking plate 7, and the movable locking plate 12 is engaged with the fixed locking plate 8. The first mounting base 9 is mounted on the first half-ring 4, and the second locking plate 7 is rotatably connected to the first mounting base 9 via the locking shaft 11, allowing the locking plate 7 to rotate. When the locking plate 7 rotates, it can cause the movable locking plate 12 to be misaligned relative to the fixed locking plate 8, thereby achieving locking and loosening between the fixed locking plate 8 and the movable locking plate 12, and thus locking and loosening the first half-ring 4.

[0041] To further optimize the design, the fixed locking plate 8 has several parallel locking grooves 13 on the side away from the first half-ring 4, and the movable locking plate 12 has locking racks 14 on its side wall that are adapted to the locking grooves 13. The locking racks 14 are engaged within the locking grooves 13. The matching and engagement of the locking grooves 13 and the locking racks 14 increases the tightness of the lock between the fixed locking plate 8 and the movable locking plate 12, preventing the first half-ring 4 and the second half-ring 5 from loosening due to water flow impact.

[0042] In a further optimized design, a guide rod 15 is fixedly connected to the end of the first half-ring 4, and a guide groove 16 adapted to the guide rod 15 is opened on the end of the second half-ring 5 facing the first half-ring 4. The guide rod 15 is inserted into the guide groove 16 and slidably connected to it. The sliding of the guide rod 15 and the guide groove 16 between the first half-ring 4 and the second half-ring 5 positions them, ensuring the locking stability between them and effectively preventing them from loosening and falling off.

[0043] In a further optimized design, a limiting groove 17 is provided at the bottom of the inner cavity of the guide groove 16. A limiting plate 18 is slidably connected within the limiting groove 17. The guide rod 15 extends into the limiting groove 17 and is fixedly connected to the limiting plate 18. A return spring 19 is fixedly connected to the bottom of the limiting groove 17 and is also fixedly connected to the limiting plate 18. The limiting plate 18 slides within the limiting groove 17, and the return spring 19 can push the limiting plate 18 to slide. When the first half-ring 4 and the second half-ring 5 are locked, the return spring 19 is in a compressed state. When the locking buckle 6 is unlocked, the return spring 19 returns to its original position and pushes the limiting plate 18, thereby pushing the guide rod 15 to slide between the guide groove 16. This allows the first half-ring 4 and the second half-ring 5 to be loosened, facilitating the adjustment of the position of the positioning ring 2 on the positioning rod 1.

[0044] The design is further optimized so that the positioning rod 1 includes a rod body 20, with scale lines 3 on the rod body 20, and a first half-ring 4 and a second half-ring 5 slidingly connected to the rod body 20. The rod body 20 is prism-shaped, and the scale lines 3 are located on various sides of the rod body 20 to facilitate readings from various angles.

[0045] Further optimizing the design, the positioning rod 1 also includes a top plate 21 and a rod head 22. The top plate 21 is detachably connected to the top of the rod body 20, and the pyramidal rod head 22 is detachably connected to the bottom of the rod body 20. The top plate 21 is threaded to the top of the rod body 20, facilitating positioning and enhancing structural stability. Simultaneously, the enlarged area of ​​the top plate 21 facilitates the application of force to insert the positioning rod 1 into the ground to a specified depth. The rod head 22, either inserted or threaded to the bottom of the rod body 20, increases the insertion capacity of the rod body 20, making it easier to insert into the ground.

[0046] The design is further optimized so that the major diameter of the top of the club head 22 is larger than the outer diameter of the club body 20. The club head 22 is designed in a prism shape. The major diameter design of the top of the club head 22 helps to prevent the positioning ring 2 on the positioning rod 1 from slipping off the positioning rod 1, avoiding the loss of the positioning ring 2 during transfer and storage; and when it is necessary to remove the positioning ring 2, it can be easily installed and removed by removing the club head 22.

[0047] In one embodiment of this application, the materials of the device can be selected as needed, and no specific limitation is made here.

[0048] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0049] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A fixed water level monitoring pointer, characterized in that: Includes a positioning rod (1), on which a plurality of positioning rings (2) indicating water level are movably arranged, and the positioning rings (2) are corresponding to the scale lines (3) arranged on the positioning rod (1); The positioning ring (2) includes a first half ring (4) and a second half ring (5) that are detachably connected. The first half ring (4) and the second half ring (5) are arranged around the positioning rod (1). A plurality of locking buckles (6) for locking are provided between the first half ring (4) and the second half ring (5). The locking buckle (6) includes a locking plate (7) rotatably connected to the first half ring (4), and a fixed locking plate (8) corresponding to the locking plate (7) is provided on the second half ring (5). The locking plate (7) and the fixed locking plate (8) are locked together.

2. The fixed water level monitoring pointer according to claim 1, characterized in that: The first half ring (4) is provided with a first mounting seat (9), and the end of the locking plate (7) is fixedly connected to a second mounting seat (10). The second mounting seat (10) is rotatably connected to the first mounting seat (9) through a locking shaft (11).

3. The fixed water level monitoring pointer according to claim 1, characterized in that: The bottom end of the locking plate (7) is provided with a movable locking plate (12) corresponding to the fixed locking plate (8), and the movable locking plate (12) is engaged with the fixed locking plate (8).

4. The fixed water level monitoring pointer according to claim 3, characterized in that: The fixed locking plate (8) is provided with a plurality of locking tooth grooves (13) arranged side by side on the side away from the first half ring (4), and the side wall of the movable locking plate (12) is provided with a locking rack (14) that is adapted to the locking tooth groove (13), and the locking rack (14) is engaged in the locking tooth groove (13).

5. The fixed water level monitoring pointer according to claim 1, characterized in that: A guide rod (15) is fixedly connected to the end of the first half ring (4), and a guide groove (16) adapted to the guide rod (15) is opened on the end of the second half ring (5) facing the first half ring (4). The guide rod (15) is inserted into the guide groove (16) and slidably connected to the guide groove (16).

6. The fixed water level monitoring pointer according to claim 5, characterized in that: The bottom of the inner cavity of the guide groove (16) is provided with a limiting groove (17), and a limiting plate (18) is slidably connected in the limiting groove (17). The guide rod (15) extends into the limiting groove (17) and is fixedly connected to the limiting plate (18).

7. The fixed water level monitoring pointer according to claim 6, characterized in that: A reset spring (19) is fixedly connected to the bottom end of the limiting groove (17), and the reset spring (19) is fixedly connected to the limiting plate (18).

8. The fixed water level monitoring pointer according to claim 1, characterized in that: The positioning rod (1) includes a rod body (20), the scale line (3) is opened on the rod body (20), and the first half ring (4) and the second half ring (5) slide on the rod body (20).

9. The fixed water level monitoring pointer according to claim 8, characterized in that: The positioning rod (1) also includes a top plate (21) and a rod head (22). The top plate (21) is detachably connected to the top of the rod body (20), and the pyramidal rod head (22) is detachably connected to the bottom of the rod body (20).

10. The fixed water level monitoring pointer according to claim 9, characterized in that: The major diameter of the top of the rod head (22) is greater than the outer diameter of the rod body (20).

Images