Plant height measuring device

Abstract

The utility model relates to the technical field of detection devices, and discloses a plant height measuring device. The plant height measuring device comprises a measuring unit and a supporting unit, the measuring unit comprises a measuring body, a plant height measuring rod and a pitch measuring rod, the plant height measuring rod is slidably arranged on the measuring body in the vertical direction and used for measuring the plant height of a plant, and the pitch measuring rod is slidably arranged on the plant height measuring rod in the vertical direction and used for detecting the pitch of the plant; the supporting unit comprises a supporting bottom plate and three or more supporting assemblies, the measuring body is arranged on the supporting bottom plate, and the three or more supporting assemblies are in transmission connection with the supporting bottom plate so that the three or more supporting assemblies can synchronously get close to the supporting bottom plate to be stored or synchronously get away from the supporting bottom plate to be used for supporting the supporting bottom plate. The plant height measuring device not only can measure the plant height, but also can measure the pitch, and is more stable in supporting.

Description

Technical Field

[0001] This utility model relates to the field of detection device technology, and in particular to a plant height measuring device. Background Technology

[0002] In tobacco cultivation, accurately measuring plant height and internode spacing is crucial for assessing plant growth and developing scientific planting management measures. The measurement data for plant height and internode spacing reflects important information such as the plant's growth rate, nutritional status, and the suitability of its growing environment, providing significant guidance for optimizing planting density, rational fertilization and irrigation, and pest and disease control. With the continuous development of tobacco cultivation technology and increasingly stringent quality requirements, greater challenges have been placed on the accuracy, convenience, and stability of plant height and internode spacing measurements.

[0003] Currently, the existing measuring devices have some shortcomings: they measure plant height and internode spacing separately using different devices; and the support structure of the existing devices is not stable enough, making them susceptible to interference from external factors such as wind and terrain during the measurement process, causing the measuring devices to shake and affecting the accuracy of the measurements. In addition, they require professional personnel to operate, which is inconvenient for the majority of tobacco farmers to use.

[0004] Therefore, there is an urgent need for a plant height measuring device to solve the above problems. Utility Model Content

[0005] Based on the above, the purpose of this utility model is to provide a plant height measuring device that can measure both plant height and internode spacing, and provides more stable support.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Plant height measuring device, including:

[0008] The measuring unit includes a measuring body, a plant height measuring rod, and a pitch measuring rod. The plant height measuring rod is slidably mounted on the measuring body in the vertical direction and is used to measure the plant height. The pitch measuring rod is slidably mounted on the plant height measuring rod in the vertical direction and is used to detect the pitch of the plant.

[0009] The support unit includes a support base plate and three or more support components. The measuring body is disposed on the support base plate, and the three or more support components are tractively connected to the support base plate so that the three or more support components can simultaneously move closer to the support base plate for storage or simultaneously move away from the support base plate for supporting the support base plate.

[0010] As a preferred embodiment of the plant height measuring device, the support unit is further provided with a drive module, the drive module comprising:

[0011] A drive turntable is provided with a first drive groove corresponding to each of the support components. The first drive groove is set at an angle to the radial direction of the drive turntable. The support base plate is provided with guide grooves corresponding to each of the drive grooves.

[0012] A transmission component is rotatably mounted on the support base plate. One end is connected to the support component, and the other end is provided with a drive column that can be placed in the first drive groove and the guide groove. The drive turntable rotates to drive three or more support components to move synchronously closer to or away from the support base plate.

[0013] As a preferred embodiment of the plant height measuring device, a drive sleeve is coaxially arranged on the drive turntable, and a spiral second drive groove is provided on the inner wall of the drive sleeve. The drive module also includes a drive protrusion disposed on the plant height measuring rod. The drive protrusion can be placed in the second drive groove to drive the drive turntable to rotate when the plant height measuring rod moves away from the support base plate.

[0014] As a preferred embodiment of the plant height measuring device, the support unit is further provided with a retaining member coaxially arranged with the drive sleeve, the retaining member having a tendency to cause the drive sleeve to drive the support assembly away from the support base plate.

[0015] As a preferred embodiment of the plant height measuring device, the transmission assembly includes:

[0016] The first transmission rod, wherein the drive column is disposed at one end of the first transmission rod;

[0017] The second transmission rod has one end rotatably mounted on the support base plate, and the support assembly is mounted on the other end of the second transmission rod. The other end of the first transmission rod is rotatably connected to the side of the second transmission rod near the support assembly.

[0018] As a preferred embodiment of the plant height measuring device, the support assembly includes a support sleeve and support feet. The support sleeve is connected to the transmission assembly, and the support feet are adjusted vertically within the support sleeve.

[0019] As a preferred embodiment of the plant height measuring device, the support assembly further includes a support frame, which is adjustablely inserted into the support sleeve, and the support feet are threadedly connected to the inner wall of the support frame.

[0020] As a preferred embodiment of the plant height measuring device, one of the measuring body and the plant height measuring rod is provided with a plurality of locking holes spaced apart in the vertical direction, and the other is provided with a locking protrusion. The locking protrusion can be selectively locked into the locking hole, and / or the plant height measuring rod is provided with a positioning hole, and a positioning bolt is threaded into the positioning hole. The positioning bolt can abut against the pitch measuring rod.

[0021] As a preferred embodiment of the plant height measuring device, a measuring head is provided on both the side of the plant height measuring rod away from the supporting base plate and the side of the pitch measuring rod close to the supporting base plate. The measuring head can be unfolded relative to the pitch measuring rod or snapped onto the pitch measuring rod.

[0022] As a preferred embodiment of the plant height measuring device, a locking element is provided at the end of the measuring head away from the pitch measuring rod, and a locking hole is provided on the pitch measuring rod. When the measuring head is fastened to the pitch measuring rod, the locking element can be placed in the locking hole. The measuring head is also provided with an elastic element, which is used to make the measuring head tend to unfold relative to the pitch measuring rod.

[0023] The beneficial effects of this utility model are as follows:

[0024] This invention features a support unit to support a measuring unit for measuring plant height and internode length. The measuring unit includes a measuring body and a height measuring rod slidably mounted on the measuring body. The height measuring rod is used to detect plant height. Simultaneously, the measuring unit includes an internode measuring rod slidably mounted on the height measuring rod. The internode measuring rod, in conjunction with the height measuring rod, can measure the plant's internode length, allowing the plant height measuring device to measure both plant height and internode length. Furthermore, the support unit includes a support base plate and support components. The measuring unit is mounted on the support base plate, and the support components can be retracted or moved away from the support base plate. When the support components are moved away from the support base plate, the stability of the support for the base plate is improved, reducing the problem of the measuring device shaking due to external factors (such as wind and terrain) during measurement, thus improving measurement accuracy. Simultaneously, the synchronous movement of three or more support components ensures high adjustment efficiency and convenient modification. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the plant height measuring device provided in a specific embodiment of this utility model when it is stored.

[0027] Figure 2 This is a schematic diagram of the plant height measuring device provided in a specific embodiment of this utility model during the unfolding and measurement process;

[0028] Figure 3 This is a partial sectional view of the plant height measuring rod of the plant height measuring device provided in a specific embodiment of this utility model;

[0029] Figure 4 This is a schematic diagram of the support unit of the plant height measuring device provided in a specific embodiment of this utility model;

[0030] Figure 5 This is a partial sectional view of the support unit of the plant height measuring device provided in a specific embodiment of this utility model;

[0031] Figure 6 This is an exploded and sectional view of the support component of the plant height measuring device provided in a specific embodiment of this utility model;

[0032] Figure 7 This is a partial exploded view of the measuring unit of the plant height measuring device provided in a specific embodiment of this utility model;

[0033] Figure 8 This is a partial cross-sectional view of the measuring unit of the plant height measuring device provided in a specific embodiment of this utility model.

[0034] In the picture:

[0035] 100. Measuring unit; 110. Measuring body; 111. Snap-fit ​​hole; 120. Plant height measuring rod; 121. Drive protrusion; 122. Snap-fit ​​protrusion; 123. Snap-fit ​​reset component; 130. Pitch measuring rod; 131. Positioning hole; 132. Positioning bolt; 133. Locking hole; 140. Measuring head; 141. Locking component; 142. Elastic component; 143. Second locking reset component;

[0036] 200, Support unit; 210, Support base plate; 211, Guide groove; 220, Support assembly; 221, Support sleeve; 2211, Adjusting block; 2212, First locking reset component; 222, Support foot; 223, Support frame; 2231, Adjusting hole; 224, Support platform; 230, Drive module; 231, Drive turntable; 2311, First drive groove; 2312, Drive sleeve; 2313, Second drive groove; 240, Transmission assembly; 241, First transmission rod; 2411, Drive column; 242, Second transmission rod; 250, Retaining component. Detailed Implementation

[0037] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0038] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0039] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and connections within two components or interactions between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0042] like Figures 1-8 As shown, this embodiment provides a plant height measuring device, which includes a measuring unit 100 and a support unit 200. The measuring unit 100 includes a measuring body 110, a plant height measuring rod 120, and a pitch measuring rod 130. The plant height measuring rod 120 is slidably disposed on the measuring body 110 in the vertical direction for measuring the plant height, and the pitch measuring rod 130 is slidably disposed on the plant height measuring rod 120 in the vertical direction for detecting the plant pitch. The support unit 200 includes a support base plate 210 and three or more support components 220. The measuring body 110 is disposed on the support base plate 210, and the three or more support components 220 are tractively connected to the support base plate 210 so that the three or more support components 220 can simultaneously approach the support base plate 210 for housing or simultaneously move away from the support base plate 210 for supporting the support base plate 210.

[0043] A support unit 200 is provided to support the measuring unit 100 for measuring the plant height and internode distance. The measuring unit 100 includes a measuring body 110 and a plant height measuring rod 120 slidably disposed on the measuring body 110. The plant height is detected by sliding the plant height measuring rod 120. The detection unit also includes an internode measuring rod 130 slidably disposed on the plant height measuring rod 120. The internode measuring rod 130, together with the plant height measuring rod 120, can be used to measure the internode distance of the plant, so that the plant height measuring device can measure both plant height and internode distance. In addition, the support unit 200 includes a support base plate 210 and a support component 220. The measuring unit 100 is disposed on the support base plate 210. The support component 220 can be stored or moved away from the support base plate 210. When the support component 220 is moved away from the support base plate 210, the stability of the support for the support base plate 210 can be improved, reducing the problem of the measuring device shaking due to interference from external factors (such as wind and terrain) during the measurement process, which affects the accuracy of the measurement, thereby improving the detection accuracy. At the same time, three or more support components 220 move synchronously, which has high adjustment efficiency and is convenient for adjustment and modification.

[0044] Specifically, the support unit 200 is further provided with a drive module 230, which includes a drive turntable 231 and a transmission assembly 240. The drive turntable 231 is provided with first drive grooves 2311 corresponding to the support assemblies 220. The first drive grooves 2311 are arranged at an angle to the radial direction of the drive turntable 231. The support base plate 210 is provided with guide grooves 211 corresponding to the first drive grooves 2311. For example, there are four support assemblies 220, and correspondingly, there are four first drive grooves 2311 and four guide grooves 211. The transmission assembly 240 is rotatably mounted on the support base plate 210, with one end connected to the support assembly 220 and the other end provided with a drive column 2411 that can be placed in the first drive groove 2311. When adjusting the support assembly 220, the drive turntable 231 rotates, so that the drive column 2411 moves along the first drive groove 2311 under the guidance of the guide groove 211, thereby driving the transmission assembly 240 to move accordingly, so that the support assembly 220 connected to the transmission assembly 240 moves closer to or further away from the support base plate 210 in a synchronous manner.

[0045] Furthermore, to enable the drive turntable 231 to rotate, a drive sleeve 2312 is coaxially provided on the drive turntable 231. The inner wall of the drive sleeve 2312 is provided with a spiral second drive groove 2313. The drive module 230 also includes a drive protrusion 121 provided on the plant height measuring rod 120. The drive protrusion 121 can be placed in the second drive groove 2313. When the plant height measuring rod 120 slides away from the support base plate 210, the drive protrusion 121 slides along the second drive groove 2313. Since the second drive groove 2313 is spirally arranged, the drive turntable 231 rotates as the plant height measuring rod 120 rises, thereby driving multiple transmission components 240 to expand synchronously in the circumferential direction of the rotation axis of the drive turntable 231.

[0046] In this embodiment, the support unit 200 is further provided with a retaining member 250 coaxially arranged with the drive sleeve 2312. By providing the retaining member 250, the drive sleeve 2312 tends to drive the support assembly 220 away from the support base plate 210. This avoids the support assembly 220 from moving in the direction closer to the support base plate 210 after the drive column 2411 disengages from the drive groove, and also ensures the reliability of the support assembly 220. Optionally, the retaining member 250 is a spiral spring.

[0047] Specifically, the transmission assembly 240 includes a first transmission rod 241 and a second transmission rod 242, wherein a drive column 2411 is rotatably disposed at one end of the first transmission rod 241; one end of the second transmission rod 242 is rotatably disposed on the support base plate 210, and a support assembly 220 is disposed at the other end of the second transmission rod 242, with the other end of the first transmission rod 241 rotatably disposed at the middle of the second transmission rod 242 near the support assembly 220. When the drive rod moves along the guide groove 211, it synchronously pushes the first transmission rod 241 to move, and the first transmission rod 241 then pushes the second transmission rod 242 to rotate around its hinged position with respect to the support base plate 210, thereby causing the support assembly 220 at the other end to unfold relative to the support base plate 210.

[0048] Preferably, to improve the reliability and adaptability of the support component 220, the support component 220 includes a support sleeve 221 and a support foot 222. The support sleeve 221 is connected to the transmission component 240, and the support foot 222 is adjusted in the vertical direction and inserted into the support sleeve 221. By adjusting the position of the support foot 222 in the vertical direction, it can adapt to uneven ground.

[0049] Furthermore, the support assembly 220 also includes a support frame 223, which is adjustablely inserted into the support sleeve 221. Support feet 222 are inserted into the support frame 223, supporting the ground and threadedly connected to the inner wall of the support frame 223. Height adjustment can be achieved by tightening the screws, making adjustment more convenient. In other words, the support frame 223 relative to the support sleeve 221 and the support feet 222 relative to the support frame 223 are both vertically adjustable. In actual use, adjustments can be made as needed, offering more adjustment methods and a wider adjustable range.

[0050] Specifically, the support frame 223 has multiple adjustment holes 2231 arranged vertically, and the support sleeve 221 has an adjustment block 2211, which can be placed at least within the adjustment holes 2231. Preferably, the adjustment block 2211 is set on the support sleeve 221 by a first locking reset member 2212. The first locking reset member 2212 is used to make the adjustment block 2211 tend to be placed within the adjustment hole 2231, so as to improve the reliability of the fit between the adjustment block 2211 and the adjustment hole 2231. When adjustment is needed, the adjustment block 2211 is pulled to overcome the deformation of the first locking reset member 2212, while the support frame 223 is adjusted to a suitable height. Then the adjustment block 2211 is released, and the adjustment block 2211 can be placed within the adjustment hole 2231 under the action of the elastic restoring force of the first locking reset member 2212, thus completing the adjustment. The first locking reset member 2212 is set as a spring. Optionally, a support platform 224 is provided below the support foot 222 to increase the support area of ​​the support foot 222 on the ground and improve the reliability of the support.

[0051] In this embodiment, in order to lock the relative position between the measuring body 110 and the plant height measuring rod 120, one of the measuring body 110 and the plant height measuring rod 120 is provided with a plurality of locking holes 111 spaced apart in the vertical direction, and the other is provided with a locking protrusion 122, which can be selectively locked into the locking hole 111. Optionally, the snap-fit ​​protrusion 122 is disposed on the plant height measuring rod 120 and connected to the plant height measuring rod 120 through the snap-fit ​​reset member 123. The snap-fit ​​reset member 123 makes the snap-fit ​​protrusion 122 tend to be placed in the snap-fit ​​hole 111. When it is necessary to adjust the position between the measuring body 110 and the plant height measuring rod 120, the operator can manually press the snap-fit ​​protrusion 122 to disengage the snap-fit ​​protrusion 122 from the snap-fit ​​hole 111. At this time, the snap-fit ​​reset member 123 becomes elastic, and the relative position between the measuring body 110 and the plant height measuring rod 120 is adjustable. After adjustment, it is only necessary to loosen the snap-fit ​​protrusion 122, which is placed in the snap-fit ​​hole 111 under the action of the elastic restoring force of the snap-fit ​​reset member 123, thus completing the adjustment. Preferably, the upper end of the snap-fit ​​protrusion 122 is arc-shaped, which facilitates its retraction into the snap-fit ​​hole 111 when pressed, and also facilitates its automatic reset when the snap-fit ​​protrusion 122 is released; the lower end of the snap-fit ​​protrusion 122 is flat, which is used to abut against the lower side wall of the snap-fit ​​hole 111 to support the plant height measuring rod 120.

[0052] Furthermore, to lock the relative position between the plant height measuring rod 120 and the pitch measuring rod 130, the plant height measuring rod 120 is provided with a positioning hole 131, and a positioning bolt 132 is threaded into the positioning hole 131. After the pitch measuring rod 130 is adjusted to a suitable position, the positioning bolt 132 can be screwed on to make it abut against the pitch measuring rod 130, thereby preventing the pitch measuring rod 130 from sliding relative to the plant height measuring rod 120 and ensuring the accuracy of the measurement.

[0053] Optionally, a measuring head 140 is provided on the side of the plant height measuring rod 120 away from the supporting base plate 210 and on the side of the pitch measuring rod 130 close to the supporting base plate 210. The measuring head 140 can be unfolded relative to the pitch measuring rod 130 to facilitate observation and measurement by the operator, or it can be snapped onto the pitch measuring rod 130 to reduce its size and facilitate storage.

[0054] Preferably, the measuring head 140 located on the side of the plant height measuring rod 120 away from the supporting base plate 210 can be fastened to the pitch measuring rod 130 with the head facing downward, and the measuring head 140 located on the side of the pitch measuring rod 130 close to the supporting base plate 210 can be fastened to the pitch measuring rod 130 with the head facing upward, so as to avoid structural interference.

[0055] Specifically, to improve the reliability of the measuring head 140 engaging with the pitch measuring rod 130, a locking element 141 is provided at the end of the measuring head 140 away from the pitch measuring rod 130, and a locking hole 133 is provided on the pitch measuring rod 130. When the measuring head 140 is engaged with the pitch measuring rod 130, the locking element 141 can be placed in the locking hole 133. Optionally, the locking element 141 is provided on the measuring head 140 through a second locking reset element 143, which makes the locking element 141 tend to be placed in the locking hole 133. When it is necessary to unlock the measuring head 140 and the pitch measuring rod 130, the operator drives the locking element 141 to disengage from the locking hole 133. At this time, the second locking reset element 143 is compressed, and the measuring head 140 can rotate away from the pitch measuring rod 130 for measurement. When it is necessary to lock the measuring head 140 and the pitch measuring rod 130, the operator drives the locking member 141 to move to compress the second locking reset member 143, then rotates the measuring head 140 to bring it close to and engage with the pitch measuring rod 130, and finally releases the locking member 141. The second locking reset member 143 restores its elastic deformation, so that the locking member 141 is locked in the locking hole 133.

[0056] Furthermore, the measuring head 140 is also provided with an elastic element 142, which is used to give the measuring head 140 a tendency to unfold relative to the pitch measuring rod 130, so that after the operator unlocks the locking member 141, the measuring head 140 can unfold under the elastic restoring force of the elastic element 142, which is more time-saving and labor-saving. For example, the elastic element 142 is set as a spiral spring.

[0057] It is understood that the aforementioned plant height measuring device can be used to measure the height and internode length of tobacco plants. For ease of data reading, both the measuring body 110 and the plant height measuring rod 120 are provided with graduations. Exemplarily, the plant height measuring rod 120 is slidably disposed inside the measuring body 110, and the internode length measuring rod 130 is slidably disposed inside the plant height measuring rod 120. The graduations on the measuring body 110 are used to read data when measuring plant height, and the graduations on the plant height measuring rod 120 are used to read data when measuring internode length. Optionally, the fully extended height of the support measuring rod is two meters to accommodate the maximum height of the tobacco plant.

[0058] The above-mentioned plant height measuring device is used as follows: When measuring the height of tobacco plants, pull the plant height measuring rod 120 to slide and rise between it and the measuring body 110. During the rise of the plant height measuring rod 120, the arc surface of the locking protrusion 122 is squeezed by the inner wall of the locking hole 111 of the measuring body 110, compressing the locking reset piece 123. When it rises to a suitable height corresponding to the height of the tobacco plant, the locking protrusion 122 is reset under the action of the locking reset piece 123 and locks into the locking hole 111 of the measuring body 110, fixing the position of the plant height measuring rod 120. The rising height of the plant height measuring rod 120, i.e., the height of the tobacco plant, can be observed through the scale on the surface of the measuring body 110. At the same time, the rise of the plant height measuring rod 120 drives the drive protrusion 121 to rise. The drive protrusion 121 is in the drive sleeve 2312. The drive sleeve 2312 and drive turntable 231 rotate within the drive groove, causing the four sets of drive columns 2411 to move within their drive grooves and the guide grooves 211 of the support base plate 210. The first transmission rod 241 pushes the second transmission rod 242 to rotate and unfold around the hinge point, achieving automatic support and ensuring the stability of the plant height measuring device. At this time, the position of the drive turntable 231 is elastically supported by the retaining member 250, and the drive turntable 231 will not rotate without the influence of external force. At the same time, the drive protrusion 121 moves downward within the drive groove of the drive sleeve 2312, thereby causing the drive sleeve 2312 to rotate in the opposite direction, thereby causing the drive turntable 231 to rotate synchronously, so as to fold the four sets of second transmission rods 242 simultaneously.

[0059] When measuring the internode spacing of tobacco plants, pull the locking member 141 to disengage it from the locking hole 133. At this time, the second locking reset member 143 is compressed, and the measuring head 140 rotates away from the internode spacing measuring rod 130 under the drive of the second locking reset member 143. Correspondingly, the movement of the internode spacing measuring rod 130 relative to the plant height measuring rod 120 and the movement of the plant height measuring rod 120 relative to the measuring body 110 are adjusted to align the two measuring heads 140 with the upper and lower end faces of the internode to be measured. After adjustment, the internode spacing measuring rod 130 is locked by the positioning bolt 132 for easy reading of the scale readings on the internode spacing measuring rod 130. Of course, before measuring the plant height, the measuring head 140 set on the plant height measuring rod 120 can also be unfolded. The unfolding method will not be described in detail here.

[0060] When it is necessary to adjust the fit between the plant height measuring device and the ground at the tobacco planting location, pull the adjusting block 2211 to disengage it from the adjusting hole 2231 of the adjusting frame, move the adjusting frame to the appropriate position, release the adjusting block 2211, and the adjusting block 2211 will reset under the action of the first locking reset piece 2212 and be inserted into the adjusting hole 2231 of the adjusting frame to fix the position of the adjusting frame; and / or, rotate the support foot 222. Since the adjusting frame has an internal threaded groove and the support foot 222 has an external thread on its outer wall, rotating the support foot 222 will push the support platform 224 to descend synchronously, so that the support platform 224 fits against the ground at the tobacco planting location, ensuring the accuracy and stability of the plant height measurement.

[0061] In summary, the clear scale on the surface of the measuring body 110 of the plant height measuring device, along with the stable sliding connection between the plant height measuring rod 120 and the measuring body 110, and the fixing method of the snap-fit ​​protrusion 122, ensures accurate data reading when measuring plant height, avoiding measurement errors. The design of the pitch measuring rod 130 and the measuring head 140 allows the measuring head 140 to move by moving the pitch measuring rod 130 up and down. Combined with the measuring head 140 on the plant height measuring rod 120, it can accurately measure the internode spacing of tobacco plants. The scale on the surface of the pitch measuring ruler further ensures the accuracy of the measurement results. Meanwhile, the design of the support unit 200 allows the plant height measuring device to automatically deploy and stably support itself under different terrain conditions, without the need for additional auxiliary tools or complex adjustment operations. Furthermore, the flexible connection and adjustment methods between the components, such as the design of the support sleeve 221, support frame 223, support foot 222, and support platform 224, allow for fine-tuning according to different tobacco plant planting positions, ensuring measurement accuracy and stability and improving the applicability of the device. In addition, when measuring plant height, the height can be adjusted simply by pulling the plant height measuring rod 120, making the operation simple and quick. When measuring internode spacing, the measurement can be completed by moving the internode measuring rod 130 and the measuring head 140, without the need for complicated operating procedures. The design of the measuring head 140 and the locking piece 141 allows the measuring head 140 to be folded and fixed when not in use, making it convenient for storage and carrying of the device. Furthermore, the support unit 200 can be automatically folded when not in use by driving the turntable 231 to move in the opposite direction, reducing the space occupied by the device, improving the portability and ease of use of the device, reducing the labor intensity of tobacco farmers, and improving measurement efficiency.

[0062] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A plant height measuring device, characterized by, The utility model relates to a plant height and pitch measuring device, including: a measuring unit (100) comprising a measuring body (110), a plant height measuring rod (120) and a pitch measuring rod (130), the plant height measuring rod (120) is arranged in the vertical direction slidingly in the measuring body (110) and is used for measuring the plant height, the pitch measuring rod (130) is arranged in the vertical direction slidingly in the plant height measuring rod (120) and is used for detecting the pitch of the plant; a support unit (200) comprising a support base plate (210) and three or more support assemblies (220), the measuring body (110) is arranged on the support base plate (210), and three or more support assemblies (220) are drivingly connected to the support base plate (210) so that the three or more support assemblies (220) can be synchronously close to the support base plate (210) for storage or synchronously away from the support base plate (210) for supporting the support base plate (210).

2. The plant height measuring device according to claim 1, characterized in that The support unit (200) is further provided with a driving module (230), and the driving module (230) comprises: a driving turntable (231) provided with a first driving groove (2311) corresponding to the support assembly (220) on the driving turntable (231), the first driving groove (2311) is arranged at an angle with the radial direction of the driving turntable (231), and the support base plate (210) is provided with a guide groove (211) corresponding to the driving groove; a transmission assembly (240) rotationally arranged on the support base plate (210), one end of the transmission assembly (240) is connected to the support assembly (220), and the other end of the transmission assembly (240) is provided with a driving column (2411) capable of being arranged in the first driving groove (2311) and the guide groove (211), and the driving turntable (231) is rotated to drive the three or more support assemblies (220) to be synchronously close to or away from the support base plate (210).

3. The plant height measuring apparatus according to claim 2, characterized by The driving turntable (231) is coaxially provided with a driving sleeve (2312), the inner wall of the driving sleeve (2312) is provided with a second driving groove (2313) in the form of a spiral, the driving module (230) further comprises a driving protrusion (121) arranged on the plant height measuring rod (120), and the driving protrusion (121) can be arranged in the second driving groove (2313) to drive the driving turntable (231) to rotate when the plant height measuring rod (120) is away from the support base plate (210).

4. The plant height measuring apparatus according to claim 3, characterized by The support unit (200) is further provided with a retaining member (250) coaxially arranged with the driving sleeve (2312), and the retaining member (250) has a tendency to drive the driving sleeve (2312) to drive the support assembly (220) to be away from the support base plate (210).

5. The plant height measuring apparatus according to claim 2, characterized by The transmission assembly (240) comprises: a first transmission rod (241), and the driving column (2411) is arranged at one end of the first transmission rod (241). A second transmission rod (242) is rotatably arranged at one end of the support bottom plate (210), and the support assembly (220) is arranged at the other end of the second transmission rod (242), and the other end of the first transmission rod (241) is rotatably connected to the side of the second transmission rod (242) close to the support assembly (220).

6. The plant height measuring apparatus according to claim 2, characterized by The support assembly (220) comprises a support sleeve (221) and a support foot (222), the support sleeve (221) is connected with the transmission assembly (240), and the support foot (222) is adjustably arranged in the support sleeve (221) in the vertical direction.

7. The plant height measuring apparatus according to claim 6, characterized by The support assembly (220) further comprises a support frame (223) which is adjustably arranged in the support sleeve (221), and the support foot (222) is threadedly connected with the inner wall of the support frame (223).

8. The plant height measuring device according to any one of claims 1 to 7, characterized in that Among the measuring body (110) and the plant height measuring rod (120), one is provided with a plurality of clamping holes (111) arranged in the vertical direction, and the other is provided with a clamping protrusion (122), the clamping protrusion (122) can be selectively clamped in the clamping hole (111), and / or the plant height measuring rod (120) is provided with a positioning hole (131), and a positioning bolt (132) is threadedly connected in the positioning hole (131), and the positioning bolt (132) can abut against the pitch measuring rod (130).

9. The plant height measuring device according to any one of claims 1 to 7, characterized in that The plant height measuring rod (120) is provided with a measuring head (140) away from the side of the support bottom plate (210), and the pitch measuring rod (130) is provided with a measuring head (140) close to the side of the support bottom plate (210), the measuring head (140) can be unfolded relative to the pitch measuring rod (130), or relative to the pitch measuring rod (130) buckling.

10. The plant height measuring apparatus according to claim 9, characterized by The measuring head (140) is provided with a locking member (141) away from the end of the pitch measuring rod (130), and the pitch measuring rod (130) is provided with a locking hole (133), when the measuring head (140) is buckled and arranged on the pitch measuring rod (130), the locking member (141) can be arranged in the locking hole (133); the measuring head (140) is further provided with an elastic member (142), and the elastic member (142) is used to make the measuring head (140) have the tendency of unfolding relative to the pitch measuring rod (130).

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