Plant leaf growth measuring instrument

Abstract

The utility model relates to the technical field of plant measuring equipment, specifically to a plant leaf growth measuring instrument, comprising a measuring instrument main body and a clamping plate installed on the measuring instrument main body, and also comprising: a guiding mechanism, wherein the guiding mechanism is installed on the clamping plate and connected to the measuring instrument main body, wherein the guiding mechanism enables the clamping plate to be lifted and lowered longitudinally, and a surveyor only needs to slide a slider, and the clamping plate will move downward, thereby reducing the distance between the clamping plate and the measuring instrument main body and reducing the degree of bending of the leaf surface; and when the slider is slid, the existence of a pressure valve greatly increases the resistance encountered when the slider is slid, and since the leaf is generally thin, the increase in resistance is conducive to more accurate adjustment; and while the slider is sliding, a distance sensor on the slider and a receiver on a slide groove approach each other, and data is sent to the measuring instrument main body, and the distance between the clamping plate and the measuring instrument main body is displayed in real time, thereby assisting the operator in making adjustments.

Description

Technical Field

[0001] The utility model relates to the technical field of plant measuring equipment, in particular to a plant leaf growth measuring instrument. Background Art

[0002] The blade is the main part of the leaf, usually a very thin flat body, which is conducive to the penetration of light into the leaf tissue and the absorption of light and carbon dioxide over the largest area for photosynthesis.

[0003] The measurement of plant leaf area plays an important role in scientific research experiments. The existing handheld leaf area meter greatly facilitates the detection of living leaves. The operation process is: pass the leaf to be detected through the clamping part of the measuring piece, so that the petiole part corresponds to the scanning part, and then pull the measuring rope and the petiole at the same time, and gently drag the leaf from the head to the tail to gradually pass through the scanning area. Since there is a certain gap in the clamping part, this process will not cause damage to the leaf. However, it is found in the process of use that most leaves have a certain curling condition. When passing through the gap in the clamping part, the leaf still presents an arc shape, which leads to a certain error in the detection result (the value is too small). For this reason, we propose a plant leaf growth measuring instrument. Utility Model Content

[0004] The purpose of the utility model is to provide a plant leaf growth measuring instrument to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plant leaf growth measuring instrument, comprising a measuring instrument body and a clamping plate installed on the measuring instrument body, and also comprising:

[0006] A guide mechanism, which is mounted on the clamping plate and connected to the measuring instrument body, and enables the clamping plate to be lifted and lowered longitudinally;

[0007] A slide groove, wherein the slide groove is provided on the measuring instrument body and a sliding block is installed inside the slide groove;

[0008] The transmission mechanism is installed on the measuring instrument body and is connected with the guide mechanism and the slide block. The transmission mechanism can realize the lifting and lowering of the clamping plate by sliding the slide block.

[0009] In some embodiments, the guiding mechanism includes a fixed plate fixed on the measuring instrument body. There are two fixed plates, which are respectively located on both sides of the clamping plate. Plate 2 is relatively fixed on the clamping plate. Plate 2 has two groups and both plates are provided with inclined grooves.

[0010] In some embodiments, the transmission mechanism includes a groove opened on the bottom of the measuring instrument body, and extension plates are installed on both sides of the measuring instrument body. A connecting plate is fixed between the extension plates and is located in the groove. One side of the extension plate is fixed to the slider, and shaft bodies are installed on the extension plates. The shaft bodies penetrate the inclined grooves, and one side of the extension plate is provided with a strip hole;

[0011] A resistance increasing mechanism is installed on the measuring instrument body, and the resistance increasing mechanism increases the resistance when the sliding block is sliding.

[0012] In some embodiments, the resistance increasing mechanism includes an air cylinder fixed on the measuring instrument body, a rod 2 is installed on the slider, a piston is installed on the top of the rod 2, the piston passes through the air cylinder, and a pressure valve is installed on the air cylinder.

[0013] In some embodiments, a distance sensor and a receiver are installed in the slider and the slide groove respectively, and the distance sensor is electrically connected to the measuring instrument body.

[0014] The utility model has at least the following beneficial effects: the surveyor only needs to slide the slider, and the clamping plate will move down, thereby reducing the distance between the clamping plate and the measuring instrument body and reducing the degree of bending of the blade surface;

[0015] When the slider is sliding, the presence of the pressure valve greatly increases the resistance encountered when the slider is sliding. Since the blades are generally thin, the increase in resistance is conducive to more precise adjustment.

[0016] While the slider is sliding, the distance sensor on the slider and the receiver on the slide slot approach each other, sending data to the measuring instrument body, displaying the distance between the clamping plate and the measuring instrument body in real time, and assisting the operator to make adjustments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the resistance increasing mechanism of the utility model;

[0020] Figure 4 For this utility model Figure 3 Schematic diagram of the structure at A in the middle;

[0021] Figure 5 It is a schematic diagram of the partial cross-section structure of the utility model;

[0022] Figure 6 For this utility model Figure 5 Schematic diagram of the structure at point B in the middle.

[0023] In the figure: 1- measuring instrument body; 11- clamping plate; 2- guiding mechanism; 21- fixing plate; 22- plate two; 23- inclined groove; 3- slide groove; 31- slider; 4- transmission mechanism; 41- groove; 42- extension plate; 43- connecting plate; 44- shaft body; 45- bar-shaped hole; 5- resistance increasing mechanism; 51- air cylinder; 52- rod two; 53- piston; 54- pressure valve; 61- pressure sensor; 62- receiver. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1

[0026] See also Figure 1-6 The utility model provides a technical solution: a plant leaf growth measuring instrument, comprising a measuring instrument body 1 and a clamping plate 11 installed on the measuring instrument body 1, and also comprising:

[0027] A guide mechanism 2, which is mounted on the clamping plate 11 and connected to the measuring instrument body 1, and enables the clamping plate 11 to be lifted and lowered longitudinally;

[0028] A slide groove 3, which is provided on the measuring instrument body 1 and has a sliding block 31 installed therein;

[0029] The transmission mechanism 4 is installed on the measuring instrument body 1 and connected with the guide mechanism 2 and the slider 31 . The transmission mechanism 4 can realize the lifting and lowering of the clamping plate 11 by sliding the slider 31 .

[0030] The guiding mechanism 2 comprises a fixing plate 21 fixed on the measuring instrument body 1. There are two fixing plates 21, which are respectively located on both sides of the clamping plate 11. A second plate 22 is relatively fixed on the clamping plate 11. There are two groups of the second plate 22, and the second plate 22 is provided with an inclined groove 23.

[0031] The two sides of the clamping plate 11 are restricted by the fixed plate 21 and can only move longitudinally. When the shaft body 44 slides in the inclined groove 23 on the plate 22, the plate 22 drives the clamping plate 11 to move downward, shortening the distance between the clamping plate 11 and the measuring instrument body 1 and reducing the degree of bending of the blade surface.

[0032] The transmission mechanism 4 includes a groove 41 formed on the bottom of the measuring instrument body 1, and extension plates 42 are installed on both sides of the measuring instrument body 1. A connecting plate 43 is fixed between the extension plates 42 and is located in the groove 41. One side of the extension plate 42 is fixed to the slider 31, and shafts 44 are installed on the extension plates 42. The shafts 44 penetrate the inclined groove 23, and one side of the extension plate 42 is provided with a strip hole 45;

[0033] A resistance increasing mechanism 5 is installed on the measuring instrument body 1 , and the resistance increasing mechanism 5 increases the resistance when the slider 31 slides.

[0034] The arrangement of the strip-shaped hole 45 ensures that the movement of the extension plate 42 will not affect the use of the measuring rope.

[0035] The resistance increasing mechanism 5 comprises an air cylinder 51 fixed on the measuring instrument body 1 , a rod 52 is mounted on the slider 31 , a piston 53 is mounted on the top of the rod 52 , the piston 53 penetrates the air cylinder 51 , and a pressure valve 54 is mounted on the air cylinder 51 .

[0036] When the slider 31 is slid, the slider 31 will simultaneously pull the piston 53 to move in the air cylinder 51 through the rod 2 52. The pressure valve 54 is bidirectional and requires a certain pressure to open. This is the prior art. The existence of the pressure valve 54 greatly increases the resistance encountered when the slider 31 is slid. Since the blades are generally thin, the increase in resistance is conducive to more precise adjustment.

[0037] Example 2

[0038] See also Figure 6 Based on Example 1, this application further optimizes this solution:

[0039] A distance sensor 61 and a receiver 62 are installed in the slider 31 and the slide groove 3 respectively. The distance sensor 61 is electrically connected to the measuring instrument body 1 .

[0040] The working principle of the utility model is as follows: the leaf surface part of the plant is passed through the measuring instrument body 1, the measuring rope on the measuring instrument body 1 corresponds to the position of the petiole, and then the slider 31 is slid, and the slider 31 drives the extension plate 42 to move forward during the sliding process, and the shaft body 44 on the extension plate 42 moves forward synchronously. Since both sides of the clamping plate 11 are restricted by the fixed plate 21 and can only move longitudinally, when the shaft body 44 slides in the inclined groove 23 on the plate 22, the plate 22 drives the clamping plate 11 to move downward, shortening the distance between the clamping plate 11 and the measuring instrument body 1, reducing the degree of bending of the leaf surface, and when the sliding slider 31 is When the slider 31 is moved, the piston 53 is pulled by the rod 2 52 to move in the cylinder 51. The pressure valve 54 is bidirectional and requires a certain pressure to open. It is a prior art. The existence of the pressure valve 54 greatly increases the resistance encountered when the slider 31 is slid. Since the blades are generally thin, the increase in resistance is conducive to more precise adjustment. When the slider 31 slides in the slide groove 3, the distance sensor 61 on the slider 31 and the receiver 62 on the slide groove 3 approach each other and send data to the measuring instrument body 1, displaying the distance between the clamping plate 11 and the measuring instrument body 1 in real time, and assisting the operator to make adjustments.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plant leaf growth measuring instrument, comprising a measuring instrument body (1) and a clamping plate (11) mounted on the measuring instrument body (1), characterized in that: Also includes: A guide mechanism (2), the guide mechanism (2) being mounted on the clamping plate (11) and connected to the measuring instrument body (1), the guide mechanism (2) enabling the clamping plate (11) to be lifted and lowered longitudinally; A slide groove (3), wherein the slide groove (3) is provided on the measuring instrument body (1) and a sliding block (31) is installed inside the slide groove; A transmission mechanism (4) is installed on the measuring instrument body (1) and is connected to the guide mechanism (2) and the slider (31). The transmission mechanism (4) can realize the lifting and lowering of the clamping plate (11) by sliding the slider (31).

2. The plant leaf growth measuring instrument according to claim 1, characterized in that: The guiding mechanism (2) comprises a fixing plate (21) fixed on the measuring instrument body (1), wherein there are two fixing plates (21) respectively located on both sides of the clamping plate (11), a second plate (22) is relatively fixed on the clamping plate (11), the second plate (22) has two groups, and the second plate (22) is provided with an inclined groove (23).

3. The plant leaf growth measuring instrument according to claim 2, characterized in that: The transmission mechanism (4) comprises a groove (41) provided at the bottom of the measuring instrument body (1), extension plates (42) are installed on both sides of the measuring instrument body (1), a connecting plate (43) is fixed between the extension plates (42) and is located in the groove (41), the extension plate (42) on one side is fixed to the slider (31), a shaft (44) is installed on the extension plate (42), the shaft (44) passes through the inclined groove (23), and a strip hole (45) is opened on the extension plate (42) on one side; A resistance increasing mechanism (5) is installed on the measuring instrument body (1), and the resistance increasing mechanism (5) increases the resistance when the sliding block (31) is slid.

4. The plant leaf growth measuring instrument according to claim 3, characterized in that: The resistance increasing mechanism (5) comprises an air cylinder (51) fixed on the measuring instrument body (1), a rod 2 (52) is mounted on the slider (31), a piston (53) is mounted on the top of the rod 2 (52), the piston (53) penetrates the air cylinder (51), and a pressure valve (54) is mounted on the air cylinder (51).

5. The plant leaf growth measuring instrument according to claim 4, characterized in that: A distance sensor (61) and a receiver (62) are respectively installed in the slider (31) and the slide groove (3); the distance sensor (61) is electrically connected to the measuring instrument body (1).

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