Bidirectional measuring caliper for trunk

Abstract

The utility model relates to the technical field of measuring tools, in particular to a trunk bidirectional measuring caliper, which comprises a main ruler, scale marks are arranged on the main ruler, an auxiliary vernier is fixedly mounted at one end of the main ruler, and a main vernier is sleeved on the periphery of the main ruler in a sliding manner; the first measuring jaw is provided with scale marks, and the first measuring jaw is installed at one end of the main ruler through an auxiliary vernier; the second measuring jaw is provided with scale marks, and the second measuring jaw is connected with the main ruler through the main vernier; the linkage rod is fixedly connected with the end part of the first measuring jaw, and the linkage rod is in sliding connection with the end part of the second measuring jaw; according to the utility model, through the bidirectional sliding design of the main ruler and the double measuring jaws and the combination of the synchronization mechanism of the linkage rod, the linkage operation of depth positioning and width measurement is realized in a single device. A user can synchronously obtain width data at a specific depth only through one-time positioning, the tedious process that a traditional tool needs to be disassembled or marked for multiple times is avoided, and the measurement efficiency is remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to measuring tool technical field, concretely is a kind of tree trunk bidirectional measurement caliper. BACKGROUND

[0002] In forestry resource investigation, timber processing and ancient tree protection and other fields, accurate measurement of the width of different depths of tree trunk is crucial for analyzing tree growth conditions, internal structural defects (such as hollow, corrosion) and annual ring distribution.

[0003] In the prior art, traditional measuring tools such as vernier caliper and outside diameter gauge are mainly used for linear size measurement of industrial standardized parts, and the design is mainly one-way sliding, which can only obtain the outer diameter or depth data of the object, and cannot adapt to the multi-dimensional measurement demand of irregular natural objects such as tree trunk, and needs to be disassembled or assisted marking multiple times in the operation process, resulting in error accumulation. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a kind of tree trunk bidirectional measurement caliper to solve the problems raised in the above background.

[0005] The purpose of the utility model can be realized by the following technical solutions:

[0006] A kind of tree trunk bidirectional measurement caliper, comprising:

[0007] Main ruler, scale line is provided on the main ruler, one end of main ruler is fixedly installed with vice vernier, main vernier is slidably sleeved on the periphery of main ruler;

[0008] First measuring claw, scale line is provided on the first measuring claw, first measuring claw is vertically installed on one end of main ruler by the vice vernier, and first measuring claw is perpendicular to main ruler;

[0009] Second measuring claw, scale line is provided on the second measuring claw, second measuring claw is connected with main ruler by the main vernier and can slide longitudinally and transversely;

[0010] Linkage rod, the linkage rod is arranged in parallel with main ruler, the end of linkage rod is fixedly connected with first measuring claw, and the end of linkage rod is slidably connected with second measuring claw, and linkage rod is used to keep first measuring claw and second measuring claw synchronous when sliding longitudinally.

[0011] Further, the bottom surface of the main vernier is fixedly installed with a clamping groove slidably sleeved on the periphery of the second measuring claw.

[0012] Further, one end of the second measuring claw close to the linkage rod is fixedly installed with a sliding block one slidably installed with the linkage rod, and one end of the sliding block one away from the second measuring claw is threadedly installed with a bolt one for limiting the sliding between the sliding block one and the linkage rod.

[0013] Furthermore, a bolt 2 is threaded through the side of the secondary vernier away from the main scale to limit the sliding between the secondary vernier and the first measuring jaw.

[0014] Furthermore, both the secondary and primary verniers integrate capacitive sensors, and the secondary vernier is equipped with screen one, while the primary vernier is equipped with screen two.

[0015] Furthermore, both the first measuring jaw and the main scale are provided with embedded electrode grids for use with the capacitive sensor to achieve displacement detection.

[0016] The beneficial effects of this utility model are:

[0017] 1. This utility model, through the bidirectional sliding design of the main scale and dual measuring jaws, combined with the rigid synchronization mechanism of the linkage rod, achieves for the first time a single device the linked operation of depth positioning and width measurement. Users only need to perform a single positioning to simultaneously obtain width data at a specific depth, avoiding the cumbersome process of multiple disassembly and marking required by traditional tools, and significantly improving measurement efficiency.

[0018] 2. The main scale and measuring jaws of this invention can slide freely in the horizontal and vertical directions respectively, and the depth of the two measuring endpoints is synchronized through a linkage rod, ensuring that no errors are caused by positional offset when measuring the left and right widths of the same depth section. This solves the core problem that traditional calipers cannot measure structural widths at different depth positions, and is especially suitable for irregular objects such as tree trunks, logs, and irregularly shaped columns.

[0019] 3. This utility model significantly reduces manufacturing costs by combining mechanical structure innovation with basic electronic components, achieving a low-cost, high-precision, and field-usable two-dimensional measurement method. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0023] Figure 3 yes Figure 2 Enlarged view of section A;

[0024] Figure 4 yes Figure 2A three-dimensional diagram from another angle;

[0025] Figure 5 yes Figure 4 Enlarged view of section B;

[0026] The accompanying figure is labeled as follows:

[0027] 1-Main scale, 2-Linkage rod, 3-Slider 1, 4-Bolt 1, 5-Secondary vernier, 6-Bolt 2, 7-Screen 1, 8-First measuring jaw, 10-Scale line, 11-Main vernier, 12-Slot, 13-Second measuring jaw, 14-Screen 2. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example 1:

[0030] Please see Figures 1-5 In this embodiment of the utility model, a bidirectional tree trunk measuring caliper includes:

[0031] Main scale 1, with scale lines 10 on it, a secondary vernier 5 fixedly installed at one end of the main scale 1, and a main vernier 11 slidingly fitted around the outer periphery of the main scale 1;

[0032] The first measuring jaw 8 is provided with a scale line 10. The first measuring jaw 8 is mounted on one end of the main scale 1 and can slide longitudinally through the secondary vernier 5. The first measuring jaw 8 is perpendicular to the main scale 1.

[0033] The second measuring jaw 13 is provided with a scale line 10. The second measuring jaw 13 is connected to the main scale 1 through the main vernier 11, which can slide longitudinally and laterally.

[0034] Linkage rod 2 is arranged parallel to and aligned with main scale 1. Linkage rod 2 is fixedly connected to the end of first measuring jaw 8 and slidably connected to the end of second measuring jaw 13. Linkage rod 2 is used to keep the first measuring jaw 8 and the second measuring jaw 13 synchronized when sliding longitudinally.

[0035] The bottom surface of the main vernier 11 is fixedly equipped with a slot 12 that is slidably sleeved around the second measuring jaw 13.

[0036] Among them, the end of the second measuring jaw 13 near the linkage rod 2 is fixedly installed with a slider 3 that is slidably installed with the linkage rod 2, and the end of the slider 3 away from the second measuring jaw 13 is threaded with a bolt 4 for limiting the sliding between the slider 3 and the linkage rod 2.

[0037] Among them, the side of the secondary vernier 5 away from the main scale 1 is threaded with a bolt 6 to limit the sliding between the secondary vernier 5 and the first measuring jaw 8.

[0038] When using this utility model:

[0039] 1. Depth Positioning: The user first places the graduated side of the main scale 1 against the edge of the tree trunk, loosens the bolt 2 6, and manually operates the first measuring jaw 8 to slide longitudinally to the target depth (e.g., 10cm from the edge of the tree trunk). At the same time, under the action of the linkage rod 2, the second measuring jaw 13 will also slide synchronously to the same depth. The two measuring jaw probes are on the same horizontal line to ensure measurement accuracy.

[0040] II. Width Measurement: Loosen bolt 4. The second measuring jaw 13 slides laterally on the main scale 1 via the main vernier 11 until the measuring point and the first measuring jaw 8 clamp the tree trunk, thus obtaining the tree trunk width reading at that depth. At this point, the tree trunk width value corresponding to that depth can be obtained through the scale on the main scale 1.

[0041] 3. Record multiple sets of data: Repeat the above operation, slide and measure multiple times at different depth positions to obtain a series of "depth-width" corresponding data points, which can be used to analyze the internal structure of the tree trunk, annual ring development, health status, etc.

[0042] This invention, through the bidirectional sliding design of the main scale 1 and the double measuring jaws, combined with the rigid synchronization mechanism of the linkage rod 2, achieves for the first time a single device the linked operation of depth positioning and width measurement. Users only need to perform a single positioning to simultaneously obtain width data at a specific depth, avoiding the cumbersome process of multiple disassemblies or markings required by traditional tools, thus significantly improving measurement efficiency.

[0043] This invention, through the coordinated design of multiple mechanisms including the main scale 1, double measuring jaws, a linkage slider, and a linkage rod 2, successfully achieves simultaneous measurement and precise positioning of large-diameter, irregular objects in two dimensions (depth-width). Significant achievements and technological breakthroughs have been made in practical use. The main scale 1 and measuring jaws can slide freely in the horizontal and vertical directions respectively, and the linkage rod 2 ensures synchronized depth measurement of the two measuring endpoints, preventing errors caused by positional shifts when measuring the left and right widths of the same depth section. This solves the core problem of traditional calipers' inability to measure structural widths at different depths, making it particularly suitable for irregular objects such as tree trunks, logs, and irregularly shaped columns.

[0044] Example 2:

[0045] Please see Figure 1 Based on Example 1, both the secondary vernier 5 and the primary vernier 11 are equipped with capacitive sensors, and the secondary vernier 5 is equipped with a screen 7, while the primary vernier 11 is equipped with a screen 14.

[0046] Both the first measuring jaw 8 and the main scale 1 are equipped with embedded electrode grids for use with capacitive sensors to achieve displacement detection.

[0047] By employing a digital reading system combining an embedded electrode grid and a capacitive sensor, along with dual calibration using a longitudinal scale on a dual-jaw chuck, this invention achieves a measurement accuracy of ±0.5 mm in practical tests. Compared to the manual measuring tape method, this significantly improves measurement accuracy and reduces repeatability errors, making it particularly suitable for scenarios with high data consistency requirements, such as forestry surveys and tree-ring analysis.

[0048] This invention significantly reduces manufacturing costs by combining innovative mechanical structures with basic electronic components, achieving a low-cost, high-precision, and field-usable two-dimensional measurement method.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A bidirectional caliper for measuring tree trunks, characterized in that, include: Main scale (1), the main scale (1) is provided with scale lines (10), a secondary vernier (5) is fixedly installed at one end of the main scale (1), and a main vernier (11) is slidably sleeved on the outer periphery of the main scale (1). The first measuring jaw (8) is provided with a scale line (10). The first measuring jaw (8) is mounted on one end of the main scale (1) through the secondary vernier (5) and is perpendicular to the main scale (1). The second measuring jaw (13) is provided with a scale line (10). The second measuring jaw (13) is connected to the main scale (1) in a longitudinal and lateral sliding manner through the main vernier (11). Linkage rod (2), which is parallel and aligned with the main scale (1), is fixedly connected to the end of the first measuring jaw (8), and is slidably connected to the end of the second measuring jaw (13). The linkage rod (2) is used to keep the first measuring jaw (8) and the second measuring jaw (13) synchronized when sliding longitudinally.

2. The bidirectional tree trunk measuring caliper according to claim 1, characterized in that, The bottom surface of the main vernier (11) is fixedly fitted with a slot (12) that is slidably sleeved around the second measuring jaw (13).

3. A bidirectional tree trunk measuring caliper according to claim 1, characterized in that, The second measuring jaw (13) is fixedly installed with a slider (3) that is slidably installed with the linkage rod (2) at one end. The slider (3) is threaded through with a bolt (4) for limiting the sliding between the slider (3) and the linkage rod (2) at the other end away from the second measuring jaw (13).

4. A bidirectional tree trunk measuring caliper according to claim 1, characterized in that, The secondary vernier (5) is threaded with a bolt 2 (6) on the side away from the main scale (1) to limit the sliding between the secondary vernier (5) and the first measuring jaw (8).

5. A bidirectional tree trunk measuring caliper according to claim 1, characterized in that, Both the secondary vernier (5) and the primary vernier (11) are equipped with capacitive sensors, and the secondary vernier (5) is equipped with screen one (7), while the primary vernier (11) is equipped with screen two (14).

6. A bidirectional tree trunk measuring caliper according to claim 5, characterized in that, Both the first measuring jaw (8) and the main scale (1) are provided with embedded electrode grids that work in conjunction with the capacitive sensor to achieve displacement detection.

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