Weighing device for plant transpiration experiment

Abstract

The utility model discloses a weighing device for a plant transpiration experiment, which comprises two supports arranged in an opposite supporting manner, self-locking travelling wheels mounted at the lower ends of the supports, a cross beam of which the two ends are fixedly connected with the upper parts of the two supports respectively, a chain block fixedly connected to the cross beam, a crane scale fixedly connected to an object lifting chain of the chain block, and a lifting rope hung on a lifting hook of the crane scale, the upper end of the first clamping rod is fixedly connected with one end of the lifting rope, the upper end of the second clamping rod is fixedly connected with the other end of the crane scale, the first clamping strip is fixedly connected to the lower portion of the first clamping rod, the inner side of the first clamping strip is consistent with the outer wall of the planting pot in shape, and the second clamping strip is fixedly connected to the lower portion of the second clamping rod, and the inner side of the second clamping strip is consistent with the outer wall of the planting pot in shape. The rod portion of the first clamping rod is hinged to the rod portion of the second clamping rod to form a clamp shape. The plant transpiration weighing device has the advantages that when the plant transpiration weighing device is used for plant transpiration weighing, the planting pot does not need to be carried back and forth, even women can operate the plant transpiration weighing device, and the labor intensity during plant transpiration weighing can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of weighing equipment, in particular to a weighing device for plant transpiration experiments. Background Art

[0002] Transpiration is an important physiological process in plants, which refers to the process of water radiating from the plant body into the atmosphere in the form of water vapor. Water is one of the main environmental resources that determines the growth and yield of crops, and its efficient use is an important guarantee for increasing and stabilizing crop yields. The water utilization capacity of crops is mainly reflected in the amount of water absorbed by crops. Since more than 99% of the water absorbed by plants is lost through transpiration, the transpiration amount represents the amount of water absorbed by crops to a certain extent. Therefore, measuring the transpiration of crops is of great significance for evaluating the water utilization capacity of crops and studying the mechanism of efficient water utilization of crops.

[0003] Regarding how to measure crop transpiration, most current studies are conducted from the perspective of total field transpiration water, without separating crop transpiration from soil evaporation. Although there are a few studies based on crop transpiration water, these studies are mostly based on estimation of crop transpiration using stem flow meters rather than actual measurements. Overall, the best way to measure crop transpiration is still the weighing method, which is to weigh the entire plant system (including impermeable containers, evaporation-proof covers with growth holes, soil and other cultivation media, water, and plants) every 24 hours, and the difference between the two weighing values ​​is the daily crop transpiration.

[0004] When the weighing method is used to measure the transpiration of crops, the weighing instrument generally used is a ground scale, which has two difficulties in practice. First, if the ground scale is not moved, all participating plant systems need to be moved to the location of the ground scale, but the weight of the entire plant system is often more than 20kg, which causes great pressure on the handling of scientific researchers, especially female scientific researchers. Second, if the plant system is not moved, the ground scale needs to be moved to the location of the plant system, but the ground scale needs to be adjusted to the level for accurate weighing, and the agricultural test site is often not flat enough, which results in the need to adjust the level every time the weighing is carried out, which is very cumbersome. If the ground scale is not used, but the plant system is weighed based on the hanging scale, the plant system is heavy, and it is difficult for scientific researchers, especially female scientific researchers, to lift the entire plant system into the air. Therefore, based on practice, front-line researchers have improved the existing weighing instruments and designed a potted plant weighing instrument that does not require leveling and saves effort. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a weighing device for plant transpiration experiments.

[0006] In order to solve the above technical problems, the technical solution of the utility model is:

[0007] A weighing device for plant transpiration experiments, comprising two pairs of brackets, self-locking walking wheels installed at the lower ends of the brackets, crossbeams with two ends respectively connected to the upper parts of the two brackets, a hand chain hoist connected to the crossbeam, a hanging scale connected to the hanging chain of the hand chain hoist, a hanging rope hung on the hook of the hanging scale, a clamping rod 1 whose upper end is connected to one end of the hanging rope, a clamping rod 2 whose upper end is connected to the other end of the hanging scale, a clamping strip 1 fixed to a lower part of the clamping rod and whose inner side has the same shape as the outer wall of a planting pot, and a clamping strip 2 fixed to a lower part of the clamping rod and whose inner side has the same shape as the outer wall of the planting pot; the rod portion of the clamping rod 1 is hinged with the rod portion of the clamping rod 2 to form a clamp shape.

[0008] Preferably, a sliding seat is fixedly connected to the hand chain hoist, and the sliding seat is slidably connected to the crossbeam.

[0009] Preferably, a stepped step is provided at the inner side of the upper end of the clamping bar 1, and the clamping bar 2 has the same structure as the clamping bar 1.

[0010] Preferably, portions of the first clamping strip and the second clamping strip in contact with the planting pot are provided with a cushion layer.

[0011] Preferably, the bracket includes a cross bar, the lower end of which is fixedly connected to a vertical bar in the middle of the cross bar, and two pairs of diagonal braces, the two ends of which are respectively fixedly connected to the vertical bar portion and the end of the cross bar.

[0012] Preferably, a reinforcing plate is fixedly connected at the connection between the cross beam and the bracket.

[0013] The above technical solution has the following advantages:

[0014] When the utility model is used for plant transpiration weighing, the weighing device does not need to carry the planting pot back and forth, and even women can operate it, which can effectively reduce the labor intensity when weighing the plant transpiration. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view of an embodiment of the utility model;

[0016] Figure 2 for Figure 1 A top view of

[0017] Figure 3 for Figure 1 Left view of

[0018] Figure 4 for Figure 1 Stereoscopic image of

[0019] Figure 5 for Figure 4 A magnified view of part A;

[0020] In the figure, 1- bracket, 2- self-locking walking wheel, 3- crossbeam, 4- hand chain hoist, 5- crane scale, 6- lifting rope, 7- clamping rod one, 8- clamping rod two, 9- clamping bar one, 10- clamping bar two, 11- sliding seat, 12- step, 13- cross bar, 14- vertical bar, 15- diagonal support rod, 16- reinforcing plate. DETAILED DESCRIPTION

[0021] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0022] As shown in the accompanying drawings, a weighing device for plant transpiration experiment includes two pairs of brackets 1, self-locking walking wheels 2 installed at the lower ends of the brackets 1, a crossbeam 3 with two ends respectively connected to the upper parts of the two brackets 1, a hand winch 4 connected to the crossbeam 3, a hanging scale 5 connected to the hanging chain of the hand winch 4, a hanging rope 6 hung on the hook of the hanging scale 5, a clamping rod 7 connected to one end of the hanging rope 6 at the upper end, a clamping rod 8 connected to the other end of the hanging scale 5 at the upper end, a clamping strip 9 connected to the lower part of the clamping rod 7 and having an inner side consistent with the shape of the outer wall of the planting pot, and a clamping strip 10 connected to the lower part of the clamping rod 8 and having an inner side consistent with the shape of the outer wall of the planting pot; the rod portion of the clamping rod 7 is hinged with the rod portion of the clamping rod 8 to form a clamp shape.

[0023] As a further improved technical solution of this embodiment, a sliding seat 11 is fixedly connected to the hand chain hoist 4, and the sliding seat 11 is slidably connected to the cross beam 3, which can adopt friction contact sliding, such as the form of a dovetail groove and a slider, or rolling sliding, such as other existing forms such as an I-beam and a walking wheel. Through the sliding seat 11, the hand chain hoist 4 can slide along the cross beam 3 to improve the convenience of use.

[0024] As a further improved technical solution of this embodiment, a stepped step 12 is provided at the inner side of the upper end of the clamping strip 1 9, and the clamping strip 2 10 has the same structure as the clamping strip 1 9. This structure can better fit the upper edge of the planting pot and has a more stable contact.

[0025] As a technical solution to further improve this embodiment, the parts of the clamping strips 1 9 and 10 that are in contact with the planting pot are provided with a cushion layer (not shown in the figure). The cushion layer can be made of rubber or plastic and is connected to the clamping strips 1 9 and 10 by bonding.

[0026] As a specific technical solution of this embodiment, the bracket 1 includes a crossbar 13, a vertical bar 14 whose lower end is fixedly connected to the middle of the crossbar 13, and two pairs of diagonal braces 15 whose ends are respectively fixedly connected to the rod portion of the vertical bar 14 and the end of the crossbar 13. Obviously, other applicable bracket structures can also be used.

[0027] As a further improved technical solution of this embodiment, a reinforcing plate 16 is fixedly connected to the connection between the cross beam 3 and the bracket 1. The reinforcing plate 16 is respectively fixedly connected to the cross beam 3 and the bracket 1 by bolts to increase the strength of the connection and increase the service life of the device.

[0028] The hand chain hoist 4 and the hanging scale 5 in the utility model are both existing equipment. The hand chain hoist 4 can be a small hand chain hoist with a rated working weight of 150kg, and the hanging scale 5 can be a direct display hanging scale, a wireless hanging scale or a dial hanging scale.

[0029] When used for plant transpiration weighing, open the self-locking walking wheel, push the weighing device to the planting pot site and adjust it to a suitable position, then close the self-locking walking wheel, and then operate the hand chain hoist to lower the hanging end, then place the clamping bar 1 and the clamping bar 2 at the lower end of the planting pot edge, and the clamping bar 1 and the clamping bar 2 fit the outer wall of the planting pot under the action of their own weight, and then operate the hand chain hoist to raise the hanging end, pay attention to observe the contact between the clamping bar 1 and the clamping bar 2 and the planting pot. When the lifting rope is tensioned, the upper ends of the clamping rod 1 and the clamping rod 2 move closer to each other under the action of upward pulling force, and the lower ends also move closer to each other, driving the clamping bar 1 and the clamping bar 2 to clamp the planting pot, and the upper end of the clamping bar 1 and the upper end of the clamping bar 2 support the upper edge of the planting pot, driving the planting pot to move upward. When the planting pot is off the ground, the weight of the planting pot can be read through the hanging scale, and then the hand chain hoist is operated in the reverse direction to lower the planting pot back to its position. The weighing device does not require carrying the planting pots back and forth, and can be operated even by women, which can effectively reduce the labor intensity when weighing plant transpiration.

[0030] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A weighing device for plant transpiration experiment, characterized in that: The invention comprises two pairs of brackets (1), self-locking walking wheels (2) installed at the lower ends of the brackets (1), a crossbeam (3) whose two ends are respectively fixed to the upper parts of the two brackets (1), a hand chain hoist (4) fixed to the crossbeam (3), a hanging scale (5) fixed to the hanging chain of the hand chain hoist (4), a hanging rope (6) hung on the hook of the hanging scale (5), a clamping rod (7) whose upper end is fixed to one end of the hanging rope (6), a clamping rod (8) whose upper end is fixed to the other end of the hanging scale (5), a clamping strip (9) fixed to the lower part of the clamping rod (7) and whose inner side has the same shape as the outer wall of the planting pot, and a clamping strip (10) fixed to the lower part of the clamping rod (8) and whose inner side has the same shape as the outer wall of the planting pot; the rod part of the clamping rod (7) is hinged with the rod part of the clamping rod (8) to form a clamp shape.

2. The weighing device for plant transpiration experiment according to claim 1, characterized in that: A sliding seat (11) is fixedly connected to the hand chain hoist (4), and the sliding seat (11) is slidably connected to the crossbeam (3).

3. The weighing device for plant transpiration experiment according to claim 1 or 2, characterized in that: A stepped step (12) is provided on the inner side of the upper end of the clamping strip 1 (9), and the clamping strip 2 (10) has the same structure as the clamping strip 1 (9).

4. The weighing device for plant transpiration experiment according to claim 1 or 2, characterized in that: The portions of the clamping strip 1 (9) and the clamping strip 2 (10) that are in contact with the planting pot are provided with a cushioning layer.

5. The weighing device for plant transpiration experiment according to claim 3, characterized in that: The portions of the clamping strip 1 (9) and the clamping strip 2 (10) that are in contact with the planting pot are provided with a cushioning layer.

6. The weighing device for plant transpiration experiment according to claim 1 or 2, characterized in that: The bracket (1) comprises a crossbar (13), a vertical bar (14) whose lower end is fixedly connected to the middle of the crossbar (13), and two pairs of diagonal bracing bars (15) whose ends are respectively fixedly connected to the rod portion of the vertical bar (14) and the end of the crossbar (13).

7. The weighing device for plant transpiration experiment according to claim 3, characterized in that: The bracket (1) comprises a crossbar (13), a vertical bar (14) whose lower end is fixedly connected to the middle of the crossbar (13), and two pairs of diagonal bracing bars (15) whose ends are respectively fixedly connected to the rod portion of the vertical bar (14) and the end of the crossbar (13).

8. The weighing device for plant transpiration experiment according to claim 4, characterized in that: The bracket (1) comprises a crossbar (13), a vertical bar (14) whose lower end is fixedly connected to the middle of the crossbar (13), and two pairs of diagonal bracing bars (15) whose ends are respectively fixedly connected to the rod portion of the vertical bar (14) and the end of the crossbar (13).

9. The weighing device for plant transpiration experiment according to claim 1 or 2, characterized in that: A reinforcing plate (16) is fixedly connected at the connection between the crossbeam (3) and the bracket (1).

10. The weighing device for plant transpiration experiment according to claim 3, characterized in that: A reinforcing plate (16) is fixedly connected at the connection between the cross beam (3) and the bracket (1).

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