Portable alfalfa cradling height positioning ruler

Abstract

The utility model relates to the technical field of measuring tools, in particular to a portable alfalfa cradling height positioning ruler, which comprises a base, two groups of first measuring rulers are fixedly connected to the top of the base, a first connecting block is fixedly mounted between the two groups of first measuring rulers, and two groups of second measuring rulers are rotatably sleeved on the first connecting block. A second connecting block is fixedly installed between the two sets of second measuring rulers, the second connecting block is rotationally sleeved with two sets of third measuring rulers, a third connecting block is fixedly installed between the two sets of third measuring rulers, and the first measuring ruler, the second measuring rulers and the third measuring rulers are all provided with scale marks. When measurement is needed, the first measuring ruler, the second measuring ruler and the third measuring ruler are unfolded, the length requirement for the ruler can be met when the height of alfalfa is measured, the ruler is folded after measurement is completed, the occupied space can be reduced, a worker can carry the ruler conveniently, the ruler is not prone to being damaged due to collision, and it is guaranteed that alfalfa cradling height positioning is conducted smoothly.

Description

Technical Field

[0001] This utility model relates to the field of measuring tools, specifically a portable alfalfa cutting height positioning ruler. Background Technology

[0002] Alfalfa, due to its extremely high nutritional value, has become a major source of feed for livestock and occupies an important position in my country's agriculture and animal husbandry. For a long time, the initial flowering stage has been the standard for alfalfa harvesting. However, the determination of the initial flowering stage lacks clear and absolute quantitative indicators, and the judgment by different people is highly subjective, often resulting in missing the optimal time for alfalfa harvesting, which in turn affects the nutritional value and yield of alfalfa.

[0003] As research has deepened, a close and corresponding relationship has been found between the nutrient content of alfalfa and its growth height. Determining the required nutrient content to accurately judge the alfalfa cutting height and thus identify the optimal cutting time has become a scientifically effective method. In practice, a measuring ruler is typically used to measure alfalfa height. However, since alfalfa can sometimes grow to a height of 1 meter or even more, the measuring ruler needs to be quite long. This long measuring ruler is inconvenient to carry, occupies a lot of space, and increases the burden on workers. Moreover, during frequent transport and measurement operations in complex field environments, the measuring ruler is easily damaged by collisions and bending, which not only reduces the tool's lifespan and increases costs but also affects the smooth progress of the measurement work, failing to meet the need for efficient and accurate measurement of alfalfa cutting height. To reduce the space occupied by the measuring ruler, making it easy to carry and less prone to damage, thereby enabling efficient and accurate measurement of alfalfa cutting height, we propose a portable alfalfa cutting height positioning ruler. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a portable alfalfa cutting height positioning ruler, which reduces the space occupied by the measuring ruler, making it easy to carry and less prone to damage, thereby efficiently and accurately measuring the alfalfa cutting height.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A portable alfalfa cutting height positioning ruler includes a base. Two sets of first measuring rulers are fixedly connected to the top of the base. A first connecting block is fixedly installed between the two sets of first measuring rulers. Two sets of second measuring rulers are rotatably sleeved on the first connecting block. A second connecting block is fixedly installed between the two sets of second measuring rulers. Two sets of third measuring rulers are rotatably sleeved on the second connecting block. A third connecting block is fixedly installed between the two sets of third measuring rulers. Each of the first, second, and third measuring rulers has a scale line.

[0007] Preferably, the first measuring ruler is slidably fitted with several sets of limiting frames, and rotating blocks are threaded through the limiting frames. Two sets of first sliders are fixedly connected to the inner wall of the limiting frames. The sides of the two sets of first measuring rulers that are close to each other are slidably connected to the first sliders. The sides of the two sets of first sliders that are close to each other are fixedly connected to the second sliders. The sides of the two sets of second measuring rulers that are close to each other are slidably connected to the second sliders. The sides of the two sets of second sliders that are close to each other are fixedly connected to the third sliders. The sides of the two sets of third measuring rulers that are close to each other are slidably connected to the third sliders.

[0008] Preferably, a scale is provided on the left side of the first measuring ruler, a connecting plate is fixedly connected to the right side of the scale, a first mounting block is fixedly connected to the left side of the limiting frame, and a first slot matching the connecting plate is provided on the first mounting block.

[0009] Preferably, a second mounting block is fixedly connected between the two sets of third measuring rulers, and the second mounting block has a second slot that matches the connecting plate.

[0010] Preferably, a number of sets of insert rods are slidably passed through the base, and a number of sets of sliders are fixedly connected to the inner wall of the base. The insert rods are provided with grooves that match the sliders, and the sliders are slidably connected to the grooves.

[0011] Preferably, a plurality of nuts are rotatably mounted on the bottom of the base, and the insertion rod is provided with threads, the nuts being threadedly connected to the insertion rod.

[0012] This invention provides a portable alfalfa cutting height positioning ruler. Compared with the prior art, it has the following advantages:

[0013] This portable alfalfa cutting height positioning ruler incorporates a foldable third measuring ruler, a second measuring ruler, and a first measuring ruler. When measurement is required, the first, second, and third measuring rulers are unfolded and combined into a long measuring ruler, which meets the length requirements for measuring alfalfa height. After measurement, the first, second, and third measuring rulers are folded, significantly reducing the space occupied and making it easy for staff to carry. Furthermore, the risk of collision with other items is reduced after folding, making it less prone to damage and ensuring the smooth positioning of alfalfa cutting height. Attached Figure Description

[0014] Figure 1 This is a front view structural diagram of the main body of this utility model;

[0015] Figure 2 This is a schematic diagram of the main body of this utility model in a folded state.

[0016] Figure 3 This is a schematic diagram of the connection structure between the first measuring ruler and the first connecting block of this utility model;

[0017] Figure 4 This is a schematic diagram of the limiting frame structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the connection structure between the insert rod and the nut of this utility model;

[0019] Figure 6 For the present utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0020] In the diagram: 1. Base; 2. Insert rod; 3. First measuring ruler; 4. Second measuring ruler; 5. Third measuring ruler; 6. Limiting frame; 7. Scale; 8. First mounting block; 9. Rotating block; 10. First slider; 11. Second slider; 12. Third slider; 13. Nut; 14. Second mounting block; 15. Connecting plate; 16. First connecting block; 17. Second connecting block; 18. Third connecting block. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-6 This utility model provides a technical solution: a portable alfalfa cutting height positioning ruler, including a base 1, two sets of first measuring rulers 3 are fixedly connected to the top of the base 1, a first connecting block 16 is fixedly installed between the two sets of first measuring rulers 3, two sets of second measuring rulers 4 are rotatably sleeved on the first connecting block 16, a second connecting block 17 is fixedly installed between the two sets of second measuring rulers 4, two sets of third measuring rulers 5 are rotatably sleeved on the second connecting block 17, a third connecting block 18 is fixedly installed between the two sets of third measuring rulers 5, and scale lines are provided on the first measuring rulers 3, second measuring rulers 4, and third measuring rulers 5.

[0023] The third measuring ruler 5 can be folded into the second measuring ruler 4, and the second measuring ruler 4 can be folded into the first measuring ruler 3. When measurement is needed, the first measuring ruler 3, the second measuring ruler 4, and the third measuring ruler 5 are unfolded and combined into a long measuring ruler, which can meet the length requirements of the ruler when measuring the height of alfalfa. After the measurement is completed, the third measuring ruler 5 is folded into the space between the two sets of second measuring rulers 4, and then the second measuring ruler 4 and the third measuring ruler 5 are folded together into the space between the two sets of first measuring rulers 3. This can greatly reduce the space occupied, make it easier for staff to carry, and reduce the risk of collision with other items after folding, making it less likely to be damaged, and ensuring the smooth positioning of alfalfa cutting height.

[0024] The first measuring ruler 3 is slidably fitted with several sets of limiting frames 6. A rotating block 9 is threaded through the limiting frame 6. Two sets of first sliders 10 are fixedly connected to the inner wall of the limiting frame 6. The sides of the two sets of first measuring rulers 3 that are close to each other are slidably connected to the first sliders 10. The sides of the two sets of first sliders 10 that are close to each other are fixedly connected to the second sliders 11. The sides of the two sets of second measuring rulers 4 that are close to each other are slidably connected to the second sliders 11. The sides of the two sets of second sliders 11 that are close to each other are fixedly connected to the third sliders 12. The sides of the two sets of third measuring rulers 5 that are close to each other are slidably connected to the third sliders 12.

[0025] By setting the first slider 10, the second slider 11, and the third slider 12, the limiting frame 6 can slide freely on the first measuring ruler 3, the second measuring ruler 4, and the third measuring ruler 5. When measurement is required, the limiting frame 6 is moved to the height corresponding to the first connecting block 16 and the second connecting block 17, and then the rotating block 9 is rotated to fix the position of the limiting frame 6. This limits the second measuring ruler 4 and the third measuring ruler 5, preventing them from rotating during the measurement process and ensuring the accuracy of the measurement data.

[0026] A scale 7 is provided on the left side of the first measuring ruler 3, and a connecting plate 15 is fixedly connected to the right side of the scale 7. A first mounting block 8 is fixedly connected to the left side of the limiting frame 6, and a first slot matching the connecting plate 15 is provided on the first mounting block 8.

[0027] During measurement, insert the connecting plate 15 into the first mounting block 8, adjust the position of the limiting frame 6 so that the scale 7 is aligned with the alfalfa, and use the pointing function of the scale 7 to make it easier for the staff to read the measurement value.

[0028] A second mounting block 14 is fixedly connected between the two sets of third measuring rulers 5. The second mounting block 14 has a second slot that matches the connecting plate 15.

[0029] After the measurement is completed, insert the connecting plate 15 into the second mounting block 14, and the scale 7 can be stored between the two sets of third measuring scales 5, reducing the space occupied and making it less likely to be lost.

[0030] Several sets of insert rods 2 are slidably inserted on the base 1, and several sets of sliders are fixedly connected to the inner wall of the base 1. The insert rods 2 are provided with sliding grooves that match the sliders, and the sliders are slidably connected to the sliding grooves.

[0031] Place base 1 next to the alfalfa to be measured, insert the pole 2 into the ground, and fix the overall position.

[0032] Several sets of nuts 13 are rotatably installed on the bottom of the base 1, and the insertion rod 2 is threaded, with the nuts 13 threadedly connected to the insertion rod 2.

[0033] Rotating the nut 13 causes the insert rod 2 to rise, which can reduce the overall height and further reduce the area occupied.

[0034] Working principle: The third measuring ruler 5 can be folded into the second measuring ruler 4, and the second measuring ruler 4 can be folded into the first measuring ruler 3. When measurement is required, place the base 1 next to the alfalfa to be measured, insert the insertion rod 2 into the ground, and fix the overall position. Unfold the first measuring ruler 3, the second measuring ruler 4, and the third measuring ruler 5 to form a long measuring ruler, which can meet the length requirements of the ruler when measuring the height of alfalfa. Move the limiting frame 6 to the height corresponding to the first connecting block 16 and the second connecting block 17, and then rotate the rotating block 9 to fix the position of the limiting frame 6. This will limit the second measuring ruler 4 and the third measuring ruler 5, preventing them from rotating during the measurement process and ensuring the accuracy of the measurement data. Insert the connecting plate 15 into the first mounting block 8, and adjust the position of the limiting frame 6 so that the scale 7 is aligned with the alfalfa. The pointing action of the scale 7 makes it easy for the staff to read the measurement values. After measurement, move the limiting frame 6 to the bottom of the first measuring ruler 3, fold the third measuring ruler 5 between the two sets of second measuring rulers 4, and then fold the second measuring rulers 4 and the third measuring ruler 5 together between the two sets of first measuring rulers 3. This significantly reduces the space occupied. Turning the nut 13 causes the insert rod 2 to rise, which lowers the overall height and further reduces the area occupied, making it easier for staff to carry. The folded design also reduces the risk of collision with other items, making it less prone to damage and ensuring smooth height positioning for alfalfa cutting. Inserting the connecting plate 15 into the second mounting block 14 allows the ruler 7 to be stored between the two sets of third measuring rulers 5, reducing space occupation and preventing loss.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A portable alfalfa haying height positioning ruler comprising a base (1), characterized in that: The base (1) top fixedly connected with two groups of first measuring ruler (3), two groups of first measuring ruler (3) between fixedly installed with first connecting block (16), the first connecting block (16) is rotatably provided with two groups of second measuring ruler (4), two groups of second measuring ruler (4) between fixedly installed with second connecting block (17), the second connecting block (17) is rotatably provided with two groups of third measuring ruler (5), two groups of third measuring ruler (5) between fixedly installed with third connecting block (18), the first measuring ruler (3), second measuring ruler (4), third measuring ruler (5) are all provided with scale line.

2. A portable alfalfa haying height positioning ruler according to claim 1, characterized in that: The first measuring ruler (3) is slidably provided with a plurality of groups of limiting frame (6), the rotating block (9) is threadedly provided on the limiting frame (6), the limiting frame (6) inner wall is fixedly connected with two groups of first sliding block (10), two groups of first measuring ruler (3) are all slidably connected with first sliding block (10) on the side close to each other, two groups of first sliding block (10) are all fixedly connected with second sliding block (11) on the side close to each other, two groups of second measuring ruler (4) are all slidably connected with second sliding block (11) on the side close to each other, two groups of second sliding block (11) are all fixedly connected with third sliding block (12) on the side close to each other, two groups of third measuring ruler (5) are all slidably connected with third sliding block (12) on the side close to each other.

3. A portable alfalfa haying height positioning ruler according to claim 2, characterized in that: The first measuring ruler (3) left side is provided with scale (7), the scale (7) right side is fixedly connected with connecting plate (15), the limiting frame (6) left side is fixedly connected with first mounting block (8), the first mounting block (8) is provided with the first slot matched with connecting plate (15) on the left side.

4. A portable alfalfa haying height positioning ruler according to claim 3, characterized in that: Two groups of third measuring ruler (5) are fixedly connected with second mounting block (14), the second mounting block (14) is provided with the second slot matched with connecting plate (15) on the left side.

5. A portable alfalfa haying height positioning ruler according to claim 1, characterized in that: The base (1) is slidably provided with a plurality of groups of inserting rod (2), the base (1) inner wall is fixedly connected with a plurality of groups of sliding block, the inserting rod (2) is provided with the sliding slot matched with sliding block on the left side, and the sliding block is slidably connected with the sliding slot.

6. A portable alfalfa haying height positioning ruler according to claim 5, characterized in that: The base (1) bottom rotatably installed with a plurality of groups of nut (13), the inserting rod (2) is provided with a thread, and the nut (13) is threadedly connected with the inserting rod (2).

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