Sensor for measuring crop stem flow

Abstract

The utility model relates to the technical field of stem flow sensors, and discloses a sensor for measuring stem flow of crops. The sensor for measuring the crop stem flow comprises a main body, a probe and a protective shell, the main body is connected with one end of a connecting column through a circuit, the end, away from the circuit, of the connecting column is fixedly connected with the probe, the protective shell is arranged outside the connecting column, and heat insulation cotton is fixedly connected to the inner wall of the protective shell. Then a linkage column is pushed through a pushing plate, the linkage column moves to drive a probe to move so that the probe can be inserted into the crop, the pushing plate is loosened, the elastic piece pushes one end, provided with a rubber pad, of a protective shell to be always attached to the crop through a telescopic column through resilience force of the elastic piece, and the protective shell and heat insulation cotton conduct heat insulation on the probe; and a user does not need to independently wrap the probe by using a thermal insulation material, so that time and labor are saved, the working efficiency is improved, and the practicability of the device is embodied.

Description

Technical Field

[0001] The utility model relates to the technical field of stem flow sensors, in particular to a sensor for measuring crop stem flow. Background Art

[0002] The crop stem flow sensor is an analytical instrument used in the fields of environmental science and technology and resource science and technology.

[0003] When the stem flow of crops needs to be measured, a crop stem flow sensor is needed. The stem flow of crops is measured by inserting the probe of the crop stem flow sensor into the inside of the crop to be measured.

[0004] However, after the existing probe is inserted into the inside of the crop, the probe needs to be insulated to protect the probe. The existing method of insulating the probe is to wrap an insulating material around the outside of the probe. The method of wrapping the insulating material is troublesome and cumbersome, which is time-consuming and labor-intensive and reduces work efficiency.

[0005] Moreover, when the existing probe is inserted into the interior of the crop, if the interior of the crop is hard, it is easy to cause the probe to bend if it is directly inserted. At the same time, the probe cannot be supported when inserted into the interior of the crop for a long time, and the external circuit will press the probe to cause the probe to bend and reduce its service life. Utility Model Content

[0006] The utility model aims to provide a sensor for measuring crop stem flow to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a sensor for measuring crop stem flow, comprising a main body, a probe and a protective shell, the main body being connected to one end of a connecting column through a line, the end of the connecting column away from the line is fixedly connected to the probe, the protective shell is provided on the outside of the connecting column, the inner wall of the protective shell is fixedly connected to a heat insulation cotton, the outside of the connecting column is fixedly connected to a supporting column, one end of the support column is connected to one end of a telescopic column in an embedded form, the end of the telescopic column away from the support column is fixedly connected to the outer wall of the protective shell, a rubber pad is fixedly connected to the bottom of the protective shell, and a side bracket is provided on the protective shell, and the side bracket is mirror-imaged on the protective shell.

[0008] Preferably, an elastic member is provided inside the support column, one end of the elastic member is connected to the support column via a fastener, and the end of the elastic member away from the support column is connected to the end of the telescopic column away from the protective shell via a fastener.

[0009] Preferably, the connecting column is connected to the inner wall of the protective shell in a sliding manner, and a push plate is provided on the outer side of the connecting column, and the push plate is fixedly connected to the connecting column.

[0010] Preferably, the outer wall of the protective shell is connected to a fixed block via a fastener, the other end of the fixed block is connected to two ends of a rotating column via a rotating shaft, and the rotating column is fixedly connected to the extension bracket.

[0011] Preferably, the extension bracket is connected to the inside of the side bracket by embedding, the side bracket is connected to the bolt by threading, and one end of the bolt is connected to the extension bracket by extrusion.

[0012] Preferably, one end of the circuit is connected to the main body in an embedded form, and one end of the circuit away from the main body is fixedly connected to one end of the connecting column away from the probe.

[0013] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0014] First, the utility model can seal and insulate the probe by providing a protective shell and a rubber pad. When it is necessary to measure the stem flow of the plant, the rubber pad at one end of the mobile protective shell is fitted on the crop. The rubber pad adapts to the irregular shape of the outside of the crop, and then the connecting column is pushed by the pushing plate. The movement of the connecting column drives the probe to move so that the probe is inserted into the interior of the crop. The pushing plate is released and the elastic member pushes the end of the protective shell with the rubber pad to always fit on the crop through the elastic force of the elastic member through the telescopic column. The protective shell and the insulation cotton insulate the probe, and the user does not need to wrap the probe with insulation materials separately, which saves time and effort, improves work efficiency, and reflects the practicality of the device.

[0015] Second, the utility model can support the probe by providing a side bracket and an extension bracket to prevent the probe from bending. Before inserting the probe into the crop, one end of the protective shell is fitted on the crop, and then the bolt is turned so that the bolt no longer squeezes the extension bracket. The side bracket and the extension bracket are rotated by rotating the column, and then the side bracket is pulled so that one end of the side bracket is supported on the crop. Then the bolt is turned again, and the bolt moves on the side bracket through the thread to squeeze and limit the extension bracket. Then the side bracket and the extension bracket at the other end are pulled out in the same way. The extension bracket and the side bracket support the probe through the protective shell, which prevents the probe from bending when the probe is inserted, thereby reducing its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a cross-sectional view of the protective shell of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the connecting column and the probe of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the heat insulation cotton and rubber block of the utility model;

[0020] Figure 5 It is a schematic diagram of the side bracket and the extension bracket structure of the utility model.

[0021] Among them: 1. Main body; 2. Circuit; 3. Protective shell; 4. Connecting column; 5. Support column; 6. Telescopic column; 7. Side bracket; 8. Elastic part; 9. Probe; 10. Insulation cotton; 11. Rubber pad; 12. Extension bracket; 13. Fixed block; 14. Push plate; 15. Bolt; 16. Rotating column. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-5 A sensor for measuring crop stem flow includes a main body 1, a probe 9 and a protective shell 3. The main body 1 is connected to one end of a connecting column 4 through a line 2. The end of the connecting column 4 away from the line 2 is fixedly connected to the probe 9. A protective shell 3 is arranged outside the connecting column 4. The inner wall of the protective shell 3 is fixedly connected to a heat insulating cotton 10. The connecting column 4 is fixedly connected to a supporting column 5 outside. One end of the supporting column 5 is connected to one end of a telescopic column 6 in an embedded form. The end of the telescopic column 6 away from the supporting column 5 is fixedly connected to the outer wall of the protective shell 3. A rubber pad 11 is fixedly connected to the bottom of the protective shell 3. A side bracket 7 is arranged on the protective shell 3. The side bracket 7 is distributed in a mirror image on the protective shell 3. When it is necessary to When measuring the plant stem flow, the rubber pad 11 at one end of the mobile protective shell 3 is attached to the crop, and the rubber pad 11 adapts to the irregular shape of the outside of the crop. Then, the connecting column 4 is pushed by the pushing plate 14. The connecting column 4 moves to drive the probe 9 to move so that the probe 9 is inserted into the interior of the crop. The pushing plate 14 is released, and through the rebound force of the elastic member 8, the elastic member 8 pushes the protective shell 3 through the telescopic column 6. One end of the rubber pad 11 is always attached to the crop. The protective shell 3 and the insulation cotton 10 insulate the probe 9. There is no need for the user to wrap the probe 9 with insulation material alone, which saves time and effort, improves work efficiency, and reflects the practicality of this device.

[0024] Specifically, an elastic member 8 is provided inside the support column 5 , one end of the elastic member 8 is connected to the support column 5 via a fastener, and the end of the elastic member 8 away from the support column 5 is connected to the end of the telescopic column 6 away from the protective shell 3 via a fastener.

[0025] Through the above technical solution, the elastic member 8 is used to push one end of the protective shell 3 to always fit on the surface of the crop, thereby insulating and protecting the probe 9 inside the shell, and the insulation surface is made of glass fiber material.

[0026] Specifically, the connecting column 4 is connected to the inner wall of the protective shell 3 in a sliding manner, and a push plate 14 is provided on the outer side of the connecting column 4 , and the push plate 14 is fixedly connected to the connecting column 4 .

[0027] Through the above technical solution, the connecting column 4 is used to drive the probe 9 to move, and the pushing plate 14 is used by the staff to push the connecting column 4 to move inside the protective shell 3 through the pushing plate 14. The rubber pad 11 is made of rubber material, and the rubber material is relatively soft, which makes it easy for one end of the protective shell 3 to adapt to the surface of irregular crops.

[0028] Specifically, the outer wall of the protective shell 3 is connected to the fixed block 13 through a fastener, and the other end of the fixed block 13 is connected to two ends of the rotating column 16 through a rotating shaft, and the rotating column 16 is fixedly connected to the extension bracket 12.

[0029] Through the above technical solution, both ends of the rotating column 16 can rotate on the fixed block 13, so that the side bracket 7 and the extension bracket 12 can adapt to the surface of irregular crops and support the probes 9 at different angles.

[0030] Specifically, the extension bracket 12 is connected to the inside of the side bracket 7 by embedding, and the side bracket 7 is connected to the bolt 15 by threading, and one end of the bolt 15 is connected to the extension bracket 12 by extrusion.

[0031] Through the above technical solution, the bolt 15 is used to limit the side bracket 7 and the extension bracket 12, so that the side bracket 7 can be positioned and fixed after it moves to a length that is convenient for supporting the protective shell 3.

[0032] Specifically, one end of the line 2 is connected to the main body 1 in an embedded manner, and the end of the line 2 away from the main body 1 is fixedly connected to the end of the connecting column 4 away from the probe 9 .

[0033] Through the above technical solution, the line 2 is used to connect the probe 9 and the main body 1, one end of the line 2 can be removed from the main body 1, the probe 9 is a thermocouple probe 9, and the main body 1 is a plant stem flow meter.

[0034] When in use, before inserting the probe 9 into the crop, first, one end of the protective shell 3 is attached to the crop, and then the bolt 15 is rotated so that the bolt 15 no longer squeezes the extension bracket 12, and the side bracket 7 and the extension bracket 12 are rotated by the rotating column 16, and then the side bracket 7 is pulled so that one end of the side bracket 7 is supported on the crop, and then the bolt 15 is rotated again, and the bolt 15 moves on the side bracket 7 through the thread to squeeze and limit the extension bracket 12, and then the side bracket 7 and the extension bracket 12 at the other end are pulled out in the same way, and the extension bracket 12 is extended. The frame 12 and the side bracket 7 support the probe 9 through the protective shell 3, and the rubber pad 11 at one end of the mobile protective shell 3 is attached to the crop. The rubber pad 11 adapts to the irregular shape of the outside of the crop, and then the connecting column 4 is pushed by the pushing plate 14. The connecting column 4 moves to drive the probe 9 to move so that the probe 9 is inserted into the interior of the crop. The pushing plate 14 is released, and the elastic member 8 pushes the protective shell 3 through the telescopic column 6 through the resilience of the elastic member 8. The end of the rubber pad 11 is always attached to the crop. The protective shell 3 and the insulation cotton 10 insulate the probe 9, and the work is completed.

[0035] 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.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A sensor for measuring crop stem flow, comprising a main body (1), a probe (9) and a protective shell (3), characterized in that: The main body (1) is connected to one end of a connecting column (4) through a line (2); the end of the connecting column (4) away from the line (2) is fixedly connected to the probe (9); the protective shell (3) is provided on the outside of the connecting column (4); the inner wall of the protective shell (3) is fixedly connected to a heat insulation cotton (10); the connecting column (4) is fixedly connected to a support column (5) on the outside; one end of the support column (5) is connected to one end of a telescopic column (6) in an embedded manner; the end of the telescopic column (6) away from the support column (5) is fixedly connected to the outer wall of the protective shell (3); a rubber pad (11) is fixedly connected to the bottom of the protective shell (3); a side bracket (7) is provided on the protective shell (3); and the side bracket (7) is distributed in a mirror image on the protective shell (3).

2. A sensor for measuring crop stem flow according to claim 1, characterized in that: An elastic member (8) is provided inside the support column (5), one end of the elastic member (8) is connected to the support column (5) via a fastener, and the end of the elastic member (8) away from the support column (5) is connected to the end of the telescopic column (6) away from the protective shell (3) via a fastener.

3. A sensor for measuring crop stem flow according to claim 1, characterized in that: The connecting column (4) is connected to the inner wall of the protective shell (3) in a sliding manner, and a push plate (14) is provided on the outer side of the connecting column (4), and the push plate (14) is fixedly connected to the connecting column (4).

4. A sensor for measuring crop stem flow according to claim 1, characterized in that: The outer wall of the protective shell (3) is connected to a fixed block (13) via a fastener, the other end of the fixed block (13) is connected to two ends of a rotating column (16) via a rotating shaft, and the rotating column (16) is fixedly connected to the extension bracket (12).

5. A sensor for measuring crop stem flow according to claim 4, characterized in that: The extension bracket (12) is connected to the inside of the side bracket (7) by embedding, and the side bracket (7) is connected to the bolt (15) by threading, and one end of the bolt (15) is connected to the extension bracket (12) by extrusion.

6. A sensor for measuring crop stem flow according to claim 1, characterized in that: One end of the line (2) is connected to the main body (1) in an embedded manner, and the end of the line (2) away from the main body (1) is fixedly connected to the end of the connecting column (4) away from the probe (9).

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