Auxiliary device for measuring plant height of high-stem crops in combination with measuring tape

Abstract

The utility model discloses an auxiliary device for measuring the plant height of a high-stem crop by combining a tape measure, which comprises a telescopic supporting rod, a ground claw, a cross rod, a gradienter and a balancing weight, the cross rod is arranged at one end of the telescopic supporting rod, the cross rod is arranged perpendicular to the telescopic supporting rod, a clamping groove used for being hooked by a tape hook of the tape measure is arranged on the cross rod, the gradienter is arranged in the middle of the telescopic supporting rod, and the balancing weight is arranged on the ground claw. The ground claw is installed at the other end of the telescopic supporting rod, the balancing weight is used for being installed on a shell of the measuring tape, and a tip is arranged on the lower surface of the balancing weight. The measuring tape can be matched with the measuring tape to assist an operator in accurately acquiring the plant height of high-stem crops in the field, and the telescopic supporting rod is arranged, so that the measuring tape is convenient to carry and suitable for measuring the plant height of the high-stem crops such as corn and sorghum; the balancing weight is arranged, so that the shell of the measuring tape freely falls under the gravity effect of the balancing weight, the falling point position of the balancing weight is marked through the tip end, and therefore the measuring tape can measure the plant height of crops conveniently.

Description

Technical Field

[0001] This utility model relates to the field of canopy height measurement technology, and more specifically, to an auxiliary device for measuring the height of tall crops using a measuring tape. Background Technology

[0002] Plant height is a crucial growth parameter for crops. It allows us to assess crop health and growth status, facilitating real-time monitoring of crop growth, which is essential for field management in precision agriculture. Timely and accurate plant height data provides critical guidance for lodging monitoring, yield estimation, aboveground biomass prediction, water and fertilizer decisions, and pesticide application.

[0003] Tall crops like corn and sorghum typically reach a height of 3-4 meters in their later growth stages. When manually measuring these plants using tools like measuring tapes, the visual estimation often suffers from inconsistencies due to tilted angles compared to level measurements. Furthermore, in densely planted fields, workers' movement is hindered, making it inconvenient to manipulate the measuring device and thus impacting efficiency. In addition, measuring tapes, a common tool for measuring the height of short crops, come in various lengths. Designing an auxiliary device that can be integrated with measuring tapes would undoubtedly facilitate the rapid and accurate acquisition of the plant height of tall crops at different growth stages. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an auxiliary device for measuring the height of tall crops using a measuring tape.

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

[0006] An auxiliary device for measuring the height of tall crops using a measuring tape includes a telescopic support rod, a ground claw, a crossbar, a level, and a counterweight. The crossbar is installed at one end of the telescopic support rod and is perpendicular to the telescopic support rod. The crossbar has a groove for being hooked by the measuring tape hook. The level is installed in the middle of the telescopic support rod. The ground claw is installed at the other end of the telescopic support rod. The counterweight is installed on the outer shell of the measuring tape and is located on the side of the outer shell away from the hook. The lower surface of the counterweight has a pointed tip.

[0007] Furthermore, a rubber handle is installed in the middle of the telescopic strut.

[0008] Furthermore, a self-locking hinge is installed on the crossbar and connected to the telescopic strut via the self-locking hinge.

[0009] Furthermore, at least one calibration rod is movably mounted on the telescopic strut.

[0010] Furthermore, a clamp is installed at the end of the calibration rod, and the calibration rod is connected to the telescopic support rod through the clamp.

[0011] The beneficial effects of this utility model are:

[0012] 1. This utility model can be used with a measuring tape to help workers accurately obtain the plant height of tall crops in the field.

[0013] 2. In this utility model, by setting a telescopic support rod, it is convenient to carry and suitable for measuring the height of tall crops such as corn and sorghum; by setting a level, it is ensured that the telescopic support rod is perpendicular to the ground; by setting a counterweight, the measuring tape is allowed to fall freely under the weight of the counterweight until the tip of the lower surface of the counterweight contacts the ground, and the landing point of the counterweight is marked by the tip, thus facilitating the measurement of crop height. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of an auxiliary device for measuring the height of tall crops using a measuring tape in this embodiment;

[0015] Figure 2 for Figure 1 Enlarged view of part A in the middle.

[0016] Attached reference numerals: 1. Telescopic strut; 2. Ground claw; 3. Crossbar; 301. Slot; 4. Level; 5. Counterweight; 501. Tip; 6. Rubber handle; 7. Self-locking hinge; 8. Calibration rod; 9. Clamp; 10. Measuring tape. Detailed Implementation

[0017] 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.

[0018] Example: An auxiliary device for measuring the height of tall crops using a measuring tape, such as... Figures 1-2 As shown, it includes a telescopic support rod 1, a ground claw 2, a crossbar 3, a level 4, and a counterweight 5. The crossbar 3 is installed at one end of the telescopic support rod 1 and is set perpendicular to the telescopic support rod 1. The crossbar 3 has a slot 301 for being hooked by the hook of the measuring tape 10. The level 4 is installed in the middle of the telescopic support rod 1. The ground claw 2 is installed at the other end of the telescopic support rod 1. The counterweight 5 is used to install on the outer shell of the measuring tape 10 and is located on the side of the outer shell of the measuring tape 10 away from the hook. The lower surface of the counterweight 5 has a pointed tip 501.

[0019] The telescopic support rod 1 can be multi-stage telescopic, allowing it to reach a longer height in the extended state to accommodate the height measurement of tall crops, and a shorter height in the retracted state for easy portability. For example, the telescopic support rod 1 has a length of 1.2m in the retracted state and 4.5m in the fully extended state. The telescopic support rod 1 can be an electric actuator for automatic telescopic extension and retraction. The level 4 can be a bubble level, which uses the buoyancy of bubbles in a liquid to determine the horizontal state, thereby determining the vertical state of the telescopic support rod 1. The level 4 can be located within the operator's line of sight for easy observation of the bubbles.

[0020] In use, the counterweight 5 is installed on the outer shell of the measuring tape 10, on the side of the outer shell away from the hook. Then, the hook of the measuring tape 10 is hooked into the slot 301 of the crossbar 3. Next, the telescopic support rod 1 is fixed by inserting the ground claw 2 into the soil. During the fixing of the telescopic support rod 1, the level 4 is used to ensure that the telescopic support rod 1 is perpendicular to the ground. Then, the height of the telescopic support rod 1 is adjusted so that the crossbar 3 is level with the top of the crop. During the adjustment of the height of the telescopic support rod 1, the outer shell of the measuring tape 10 is allowed to fall freely under the weight of the counterweight 5 until the tip 501 of the lower surface of the counterweight 5 contacts the ground. The landing point of the counterweight 5 is marked using the tip 501. Then, the landing point is measured using the measuring tape 10, and the crop height is obtained by reading the scale of the measuring tape 10.

[0021] Preferably, the slot 301 can be located at the end of the crossbar 3, specifically at the wider part of the crossbar 3, so that the size of the slot 301 matches the hook of the measuring tape 10. This facilitates the hook of the measuring tape 10 hooking onto the slot 301 and the smooth descent of the measuring tape 10's outer casing without interfering with the calibration rod 8. The distance between the upper edge of the slot 301 and the upper edge of the crossbar 3 is a fixed, known value. Simultaneously, the distance between the upper edge of the slot 301 and the upper edge of the crossbar 3 needs to be controlled to avoid excessive distance increasing the error in plant height measurement. Alternatively, this distance can be measured in advance so that it can be subtracted during plant height measurement, improving the accuracy of the measurement.

[0022] Preferably, a rubber grip 6 is installed in the middle of the telescopic strut 1; by setting the rubber grip 6, the friction is increased, making it easier for the operator to firmly insert the ground claw 2 into the soil, so that the telescopic strut 1 is stable.

[0023] Furthermore, a self-locking hinge 7 is installed on the crossbar 3 and connected to the telescopic support rod 1 via the self-locking hinge 7. The self-locking hinge 7 is existing technology, as disclosed in Chinese patents CN202221883456.3 and CN202121264237.2. One end of the self-locking hinge 7 is fixed to the crossbar 3, and the other end is fixed to the telescopic support rod 1. The self-locking hinge 7 has an unlocked state and a locked state. When the self-locking hinge 7 is in the unlocked state, the crossbar 3 can rotate around the telescopic support rod 1, that is, the crossbar 3 can rotate from a state perpendicular to the telescopic support rod 1 to a state parallel to the telescopic support rod 1, or from a state parallel to the telescopic support rod 1 to a state perpendicular to the telescopic support rod 1, thereby achieving the effect of storing and unfolding the crossbar 3.

[0024] Furthermore, at least one calibration rod 8 is movably installed on the telescopic support rod 1; the calibration rod 8 is used to calibrate the corn ear part, and the ear position value is obtained by changing the position of the calibration rod 8 on the telescopic support rod 1 to correspond to the corn ear.

[0025] Preferably, a clamp 9 is installed at the end of the calibration rod 8, and the calibration rod 8 is connected to the telescopic support rod 1 through the clamp 9. By setting the clamp 9, the calibration rod 8 and the telescopic support rod 1 can be movably connected, which makes it easy to change the position of the calibration rod 8 on the telescopic support rod 1, thereby making it easy for the calibration rod 8 to correspond to the position of the corn ear.

[0026] The process of using the above-mentioned auxiliary device is as follows:

[0027] Step S1: Select the plant to be measured;

[0028] Step S2: Install the counterweight 5 on the outer shell of the measuring tape 10 and place it on the side of the outer shell of the measuring tape 10 away from the hook. Then hook the hook of the measuring tape 10 onto the slot 301 of the crossbar 3, and the crossbar 3 is perpendicular to the telescopic support rod 1.

[0029] Step S3: The telescopic support rod 1 is fixed by inserting the ground claw 2 into the soil. During the fixing process of the telescopic support rod 1, the level 4 is used to ensure that the telescopic support rod 1 is perpendicular to the ground.

[0030] Step S4: Adjust the height of the telescopic support rod 1 so that the crossbar 3 is level with the top of the plant. During the adjustment of the height of the telescopic support rod 1, the measuring tape 10 is allowed to fall freely under the gravity of the counterweight 5 until the tip 501 of the lower surface of the counterweight 5 contacts the ground. The tip 501 is used to mark the landing position of the counterweight 5.

[0031] Step S5: Keep the telescopic support rod 1 perpendicular to the ground, use the measuring tape 10 to measure the landing point, and read the scale of the measuring tape 10 to obtain the plant height.

[0032] Step S6: If the plant is a corn plant or other plant with ears, and the ear height needs to be measured, the position of the calibration rod 8 on the telescopic support rod 1 is changed to correspond to the ear position, and the ear position value is obtained by measuring with a tape measure 10.

[0033] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An auxiliary device for measuring the height of high-stalk crop plants in combination with a tape measure, comprising a telescopic support rod (1), a ground claw (2), a crossbar (3), a level (4), and a counterweight (5), characterized in that, The crossbar (3) is installed at one end of the telescopic support rod (1). The crossbar (3) is set perpendicular to the telescopic support rod (1). The crossbar (3) has a slot (301) for being hooked by the hook of the measuring tape (10). The level (4) is installed in the middle of the telescopic support rod (1). The ground claw (2) is installed at the other end of the telescopic support rod (1). The counterweight (5) is used to be installed on the outer shell of the measuring tape (10) and is located on the side of the outer shell of the measuring tape (10) away from the hook. The lower surface of the counterweight (5) has a pointed tip (501). The slot (301) is provided at the end of the crossbar (3) and is located at the widest part of the crossbar (3). The distance between the upper edge of the slot (301) and the upper edge of the crossbar (3) is a fixed known value. The slot (301) is positioned such that when the hook of the measuring tape (10) is hooked on it, the outer shell of the measuring tape (10) and the counterweight (5) can fall freely under the action of gravity until the tip (501) touches the ground. Thus, by measuring the length of the measuring tape (10) from the slot (301) to the point where the tip (501) falls, the height of the crop can be obtained. A self-locking hinge (7) is installed on the crossbar (3) and is connected to the telescopic support rod (1) through the self-locking hinge (7).

2. The auxiliary device for measuring the height of high stalk crops in combination with a measuring tape according to claim 1, characterized in that, A rubber handle (6) is installed in the middle of the telescopic support rod (1).

3. The auxiliary device for measuring the height of high stalk crops in combination with a measuring tape according to claim 1, characterized in that, At least one calibration rod (8) is movably mounted on the telescopic support rod (1).

4. The auxiliary device for measuring the height of high-stalk crop plants in combination with a measuring tape according to claim 3, characterized in that, The end of the calibration rod (8) is fitted with a clamp (9), and the calibration rod (8) is connected to the telescopic support rod (1) through the clamp (9).

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