Plant height measuring instrument

Abstract

The utility model discloses a plant height measuring instrument which comprises a telescopic sleeve, the telescopic sleeve is composed of an outer pipe and an inner pipe which are connected in a sliding mode, a base is installed at the bottom end of the outer pipe, and the side portion of the top end of the inner pipe is fixedly connected with a sliding rod through a connecting plate. The sliding rod and the telescopic sleeve are arranged in parallel, the bottom end and the top end of the side, away from the telescopic sleeve, of the sliding rod are each provided with a swing seat, and each swing seat is provided with a measuring rod; a laser head is arranged at the bottom of an inner cavity of the outer pipe and fixedly installed above the base, and a reflector is fixedly installed at the bottom end of the inner pipe and located over the emergent end of the laser head. The plant height measuring instrument provided by the utility model has two measuring modes, can measure the plant height of a shorter or higher plant, improves the application range of the measuring instrument, and can ensure the accuracy of plant height measurement through laser ranging.

Description

Technical Field

[0001] The utility model relates to a plant height measuring instrument, belonging to the technical field of plant height measurement. Background Art

[0002] Plant height refers to the distance from the root collar to the top of the plant. Specifically, plant height is the vertical distance from the root collar to the top of the main stem. In botany, plant height is an important parameter often used to describe the growth and morphological characteristics of plants.

[0003] Plant height is typically measured using a tape measure, a tower ruler, or a plant height meter, measuring the vertical distance from the root collar of the plant to the top of the main stem. Patent No. CN201820041650.4 discloses a portable plant height meter, which includes a fixed support, a height measuring rod equipped with a crop plant height measurement device, and a horizontal calibration rod aligned with the top of the plant. The fixed support is detachably connected to the height measuring rod, and the horizontal calibration rod is detachably mounted on the end of the height measuring rod facing away from the fixed support.

[0004] With respect to the technical solutions disclosed in the above patent documents, it is believed that the following technical problems still exist in practice:

[0005] 1. Plants vary in height. The measuring instrument disclosed in the above patent is limited by the fixed support and the height measuring rod structure and cannot measure the height of shorter plants, resulting in a limited scope of application.

[0006] 2. Manual reading is prone to errors, including misreading, miscalculation and parallax, which affect the accuracy of plant height measurement.

[0007] In summary, the existing technology has obvious inconveniences and defects in actual use, so it is necessary to improve it. Utility Model Content

[0008] In response to the deficiencies in the background technology, the utility model provides a plant height measuring instrument with two measurement modes, which can measure the height of shorter or taller plants, thereby improving the applicability of the measuring instrument and ensuring the accuracy of plant height measurement through laser ranging.

[0009] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0010] The plant height measuring instrument includes a telescopic sleeve, which consists of an outer tube and an inner tube connected in a sliding manner. A base is installed at the bottom end of the outer tube, and the top side of the inner tube is fixedly connected to the sliding rod through a connecting plate; pendulum seats are installed on the bottom and top ends of the sliding rod away from the telescopic sleeve, and a measuring rod is installed on the pendulum seats; a laser head is provided at the bottom of the inner cavity of the outer tube, and a reflector is fixedly installed at the bottom end of the inner tube.

[0011] Furthermore, the laser head is fixedly installed above the base.

[0012] Furthermore, the reflective sheet is located directly above the output end of the laser head.

[0013] Furthermore, the sliding rod is arranged parallel to the telescopic sleeve.

[0014] Furthermore, a damping structure is installed inside the pendulum seat.

[0015] Furthermore, a power supply box is fixedly installed on the outer side of the connection between the outer tube and the base, and the power supply box supplies power to the laser head.

[0016] Furthermore, a control switch is provided on the top of the power supply box and a USB charging port is provided on the side.

[0017] Furthermore, a limiting hole is provided at a position near the top of the outer tube.

[0018] Furthermore, a limiting post is installed near the bottom end of the inner tube, and the limiting post cooperates with the limiting hole to limit the telescopic stroke of the inner tube.

[0019] Compared with the prior art, the present invention has the following advantages after adopting the above technical solution:

[0020] The utility model has two measurement modes. When the plants to be measured are shorter, the first measuring rod is used for measurement. When the plants to be measured are taller, the second measuring rod is used for measurement. This significantly improves the applicable range of the measuring instrument.

[0021] The utility model utilizes a laser head and a reflective sheet to realize laser distance measurement to obtain plant height, which can ensure the accuracy of plant height measurement and avoid the problem of error easily occurring in manual reading in the prior art.

[0022] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural stereogram of the utility model;

[0024] Figure 2 It is a structural stereogram of the utility model along another direction;

[0025] Figure 3 This is the structural front view of the utility model;

[0026] Figure 4 yes Figure 3 The right side view of the structure;

[0027] Figure 5 This is a schematic diagram of the installation of the laser head and reflective sheet.

[0028] In the figure, 1-outer tube, 2-inner tube, 3-limiting hole, 4-limiting column, 5-base, 6-sliding rod, 7-connecting plate, 8-first pendulum seat, 9-first measuring rod, 10-second pendulum seat, 11-second measuring rod, 12-laser head, 13-reflective sheet, 14-power supply box. DETAILED DESCRIPTION

[0029] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described with reference to the accompanying drawings.

[0030] like Figure 1-Figure 5 As shown together, the utility model provides a plant height measuring instrument, including a telescopic sleeve, which is composed of an outer tube 1 and an inner tube 2 that are slidably connected, and the inner tube 2 can be pulled out from the top of the outer tube 1.

[0031] A base 5 is installed at the bottom end of the outer tube 1.

[0032] The top side of the inner tube 2 is fixedly connected to the slide bar 6 via a connecting plate 7. The slide bar 6 is arranged parallel to the telescopic sleeve. The inner tube 2 drives the slide bar 6 to move synchronously during the telescopic process.

[0033] A first pendulum seat 8 is mounted on the bottom end of the slide bar 6 away from the telescopic sleeve, and a first measuring rod 9 is mounted on the first pendulum seat 8. The first measuring rod 9 can rotate and swing with the first pendulum seat 8, and the first measuring rod 9 can be arranged parallel to the slide bar 6 or perpendicular to the slide bar 6.

[0034] A second pendulum seat 10 is mounted on the top of the slide bar 6 away from the telescopic sleeve, and a second measuring rod 11 is mounted on the second pendulum seat 10. The second measuring rod 11 can rotate and swing with the second pendulum seat 10, and the second measuring rod 11 can be arranged parallel to the slide bar 6 or perpendicular to the slide bar 6.

[0035] Damping structures are installed inside the first pendulum seat 8 and the second pendulum seat 10, which ensure that the pendulum seat and the measuring rod can swing smoothly and slowly.

[0036] A laser head 12 is provided at the bottom of the inner cavity of the outer tube 1 . The laser head 12 is fixedly mounted above the base 5 , and emits a light beam upward.

[0037] A reflective sheet 13 is fixedly mounted on the bottom end of the inner tube 2, and the reflective sheet 13 is located just above the emission end of the laser head 12. The laser head 12 and the reflective sheet 13 cooperate to realize laser ranging.

[0038] The laser head 12 can measure the displacement length of the inner tube 2 in real time. The displacement length of the inner tube 2 is the displacement length of the measuring rod.

[0039] A power supply box 14 is fixedly installed on the outer side of the connection between the outer tube 1 and the base 5. The power supply box 14 supplies power to the laser head 12. A control switch is provided on the top of the power supply box 14, and a USB charging port is provided on the side.

[0040] The outer tube 1 is provided with a limiting hole 3 near its top end, and the inner tube 2 is provided with a limiting post 4 near its bottom end. The limiting post 4 cooperates with the limiting hole 3 to limit the extension and contraction stroke of the inner tube 2, preventing the inner tube 2 from being withdrawn from the top end of the outer tube 1. During the withdrawal and extension process of the inner tube 2, the limiting post 4 presses against the inner wall of the outer tube 1, providing a damping function, allowing the inner tube 2 to be withdrawn smoothly and slowly.

[0041] The specific working principle of this utility model:

[0042] The present invention utilizes a laser head 12 and a reflective sheet 13 to achieve laser ranging. The laser head 12 can measure the displacement length of the inner tube 2 in real time. The displacement length of the inner tube 2 is the displacement length of the measuring rod. The measurement data can be transmitted to a mobile phone for display and reading.

[0043] The utility model has two measurement modes: when the plant to be measured is shorter, the first measuring rod 9 is used for measurement. During measurement, the first measuring rod 9 is vertically arranged to the sliding rod 6, and the moving height of the first measuring rod 9 can be obtained by laser ranging; when the plant to be measured is taller, the second measuring rod 11 is used for measurement. During measurement, the second measuring rod 11 is vertically arranged to the sliding rod 6, and the moving height of the second measuring rod 11 can be obtained by laser ranging. The plant height is converted and transmitted to the mobile phone for display and reading.

[0044] The above description is merely an example of the preferred embodiment of the present invention. Any details not described in detail are common knowledge within the art. The scope of protection of the present invention is determined by the claims. Any equivalent modifications based on the technical teachings of the present invention are also within the scope of protection of the present invention.

Claims

1. Plant height measuring instrument, characterized by: The telescopic sleeve comprises an outer tube (1) and an inner tube (2) connected in a sliding manner. The bottom end of the outer tube (1) is provided with a base (5). The top side of the inner tube (2) is fixedly connected to the slide rod (6) via a connecting plate (7). The bottom end and the top end of the slide rod (6) away from the telescopic sleeve are both provided with a pendulum seat, and the pendulum seat is provided with a measuring rod. The bottom of the inner cavity of the outer tube (1) is provided with a laser head (12), and the bottom end of the inner tube (2) is fixedly provided with a reflective sheet (13).

2. The plant height measuring instrument according to claim 1, wherein: The laser head (12) is fixedly mounted above the base (5).

3. The plant height measuring instrument according to claim 2, wherein: The reflective sheet (13) is located directly above the emission end of the laser head (12).

4. The plant height measuring instrument according to claim 1, wherein: The sliding rod (6) is arranged parallel to the telescopic sleeve.

5. The plant height measuring instrument according to claim 1, wherein: A damping structure is installed inside the pendulum seat.

6. The plant height measuring instrument according to claim 1, wherein: A power supply box (14) is fixedly mounted on the outer side of the connection between the outer tube (1) and the base (5), and the power supply box (14) supplies power to the laser head (12).

7. The plant height measuring instrument according to claim 6, wherein: The power supply box (14) is provided with a control switch on the top and a USB charging port on the side.

8. The plant height measuring instrument according to claim 1, wherein: The outer tube (1) is provided with a limiting hole (3) near its top end.

9. The plant height measuring instrument according to claim 8, wherein: A limiting column (4) is installed near the bottom end of the inner tube (2), and the limiting column (4) cooperates with the limiting hole (3) to limit the telescopic stroke of the inner tube (2).

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