A portable tree measuring device for forestry

Abstract

The utility model relates to tree measuring technical field, and disclose a portable tree measuring device for forestry, including the measuring scale that has the scale on outer wall, two sliding sleeves are sleeved on the measuring scale and slide, two the clamping arm is installed on the sliding sleeve, the clamping arm rotatory mounting is in the sliding sleeve, and rotatory mounting has two holding positions on the sliding sleeve, two holding positions are perpendicular to the measuring scale and parallel to the measuring scale respectively. The portable tree measuring device for forestry, through rotatory mounting the clamping arm in the sliding sleeve, and setting two holding positions, make the clamping arm rotatable to parallel to the position of the measuring scale under the non - measuring state, to realize the folding of the clamping arm and store, significantly improved the portability of device, and the device is convenient to carry and store in the field.

Description

Technical Field

[0001] This utility model relates to the field of tree measurement technology, specifically a portable tree measurement device for forestry. Background Technology

[0002] In the investigation and management of forestry resources, the diameter of trees is one of the important growth indicators. In particular, in the work of forest stock volume statistics, growth estimation and pest and disease monitoring, it is often necessary to quickly measure the diameter of a large number of trees.

[0003] In existing technology, sliding calipers are commonly used to measure the diameter of trees. However, in practical use, we have found that existing calipers still have some problems:

[0004] Existing sliding calipers mostly have fixed measuring arms that cannot be folded and stored when not in use, resulting in a bulky size that makes them inconvenient to carry when walking, climbing, or traversing dense forests. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a portable tree measuring device for forestry, which has the advantages of being foldable, easy to store, and portable.

[0007] (II) Technical Solution

[0008] To achieve the aforementioned goals of foldable storage and portability, this utility model provides the following technical solution: a portable tree measuring device for forestry, comprising a measuring ruler with graduations on its outer wall, two sliding sleeves slidably mounted on the measuring ruler, and clamping arms installed on each of the two sliding sleeves.

[0009] The clamping arm is rotatably mounted on the sliding sleeve, and the rotatable mounting on the sliding sleeve has two retaining positions;

[0010] The two holding positions are perpendicular to the measuring scale and parallel to the measuring scale, respectively.

[0011] As a further extension of this solution, end caps are installed at both ends of the measuring ruler.

[0012] As a further extension of this solution, the end can be detachably mounted on the end of the measuring ruler via mounting bolts.

[0013] As a further extension of this solution, a locking bolt is screwed onto the top of the sliding sleeve, which is used to press against the measuring ruler to lock the position of the sliding sleeve.

[0014] As a further extension of this solution, the sliding sleeve is provided with a front opening for exposing the scale.

[0015] As a further extension of this solution, when the clamping arm is in the holding position perpendicular to the measuring scale, the side of the clamping arm coincides with the side of the sliding sleeve.

[0016] As a further extension of this solution, a positioning wheel is fixedly installed on the sliding sleeve, and the positioning wheel is rotatably installed in a rotating groove opened on the clamping arm;

[0017] The positioning wheel has a slot 1 and a slot 2 at a 90-degree angle on its side. A locking post is movably locked in the slot 1 and slot 2. The locking post is elastically telescopically set on the inner wall of the rotating groove.

[0018] As a further extension of this solution, a transition convex surface is formed between the first card slot and the second card slot;

[0019] The end of the locking pin is an arc-shaped surface.

[0020] As a further extension of this solution, the locking pin is slidably installed in a telescopic groove opened on the inner wall of the rotating groove and is supported by a support spring.

[0021] (III) Beneficial Effects

[0022] Compared with the prior art, this utility model provides a portable tree measuring device for forestry, which has the following beneficial effects:

[0023] 1. This portable tree measuring device for forestry uses a clamping arm that is rotated and mounted on a sliding sleeve, with two holding positions. This allows the clamping arm to be rotated to a position parallel to the measuring ruler when not measuring, thus enabling the clamping arm to be folded and stored. This significantly improves the portability of the device and makes it easy to carry and store in the field.

[0024] 2. This portable tree measuring device for forestry uses a locking mechanism consisting of positioning wheels, slots, and elastic locking pins between the sliding sleeve and the clamping arm. This mechanism enables stable positioning and automatic locking of the clamping arm in both vertical and parallel positions, effectively preventing accidental rotation during measurement and improving stability during measurement and storage.

[0025] 3. This portable tree measuring device for forestry uses a detachable end design, which not only prevents the sliding sleeve from detaching from the measuring ruler, but also facilitates the assembly and replacement of the sliding sleeve. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a rear view of the overall structure of this utility model;

[0028] Figure 3This is an exploded view of the sliding sleeve portion of this utility model;

[0029] Figure 4 This is a cross-sectional view of the clamping arm portion of this utility model;

[0030] Figure 5 This is a schematic diagram of the present invention when folded.

[0031] In the diagram: 1. Measuring ruler; 2. End; 3. Sliding sleeve; 4. Locking bolt; 5. Clamping arm; 6. Front opening; 7. Positioning wheel; 8. Rotating groove; 9. Slot 1; 10. Slot 2; 11. Transition convex surface; 12. Clamping post; 13. Telescopic groove; 14. Support spring. Detailed Implementation

[0032] 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.

[0033] Example:

[0034] Please see Figures 1-5 This embodiment discloses a portable tree measuring device for forestry, the main body of which is a measuring ruler 1 with graduations on its outer wall, such as... Figure 1 As shown, the measuring ruler 1 has two sliding sleeves 3, and each sliding sleeve 3 is equipped with a clamping arm 5. The two clamping arms 5 are clamped on both sides of the tree, and the diameter of the tree can be measured by reading the measuring ruler 1.

[0035] In this embodiment, the clamping arm 5 is rotatably mounted on the sliding sleeve 3, and its rotatable mounting on the sliding sleeve 3 has two holding positions, which are perpendicular to the measuring scale 1 and parallel to the measuring scale 1, respectively. When the clamping arm 5 is in the holding position of "perpendicular to the measuring scale 1" ( Figure 1 (State), facilitating the measurement of tree diameter; when clamp arm 5 is in the "parallel to measuring ruler 1" holding position ( Figure 5 (State) It can fold and store the clamp arm 5, which significantly improves the portability of the device and makes it easy to carry and store in the field.

[0036] Specifically, such as Figure 3 and Figure 4As shown, a positioning wheel 7 is fixedly installed on the sliding sleeve 3. The positioning wheel 7 is rotatably installed in the rotating groove 8 opened on the clamping arm 5. The side of the positioning wheel 7 is provided with a first groove 9 and a second groove 10 at a 90-degree angle. The first groove 9 and the second groove 10 correspond to two working positions of the clamping arm 5, respectively. A locking post 12 is movably locked in the first groove 9 and the second groove 10. The locking post 12 is elastically telescopically set on the inner wall of the rotating groove 8. In this embodiment, the end of the locking post 12 is an arc-shaped surface, and a transition convex surface 11 is formed between the first groove 9 and the second groove 10.

[0037] When the locking pin 12 is engaged in the first slot 9, the clamping arm 5 is in the "perpendicular to the measuring ruler 1" holding position. When the locking pin 12 is engaged in the second slot 10, the clamping arm 5 is in the "parallel to the measuring ruler 1" holding position. During adjustment, simply rotate the clamping arm 5. Since the first slot 9 and the second slot 10 are connected by a transition convex surface 11, the locking pin 12 can slide from one slot to another under force, realizing smooth switching and automatic locking of the clamping arm 5 between the two holding positions.

[0038] In this embodiment, the locking pin 12 is slidably installed in the telescopic groove 13 opened on the inner wall of the rotating groove 8 and is supported by the support spring 14, thereby realizing elastic telescopic movement and ensuring that the locking pin 12 is always pressed against the positioning wheel 7, thus achieving a reliable positioning function.

[0039] like Figure 1 As shown, end heads 2 are also installed at both ends of the measuring ruler 1. The end heads 2 are detachably installed at the ends of the measuring ruler 1 by mounting bolts. The detachable design of the end heads 2 not only prevents the sliding sleeve 3 from falling off the measuring ruler 1, but also facilitates the assembly and replacement of the sliding sleeve 3.

[0040] like Figure 3 As shown, a locking bolt 4 is screwed onto the top of the sliding sleeve 3. The locking bolt 4 is used to press against the measuring ruler 1 to lock the position of the sliding sleeve 3, thereby maintaining a fixed distance between the two clamping arms 5 for easy reading.

[0041] To further facilitate reading and avoid the sliding sleeve 3 from obstructing the scale, in this embodiment, a front opening 6 for exposing the scale is also provided on the sliding sleeve 3.

[0042] In this embodiment, as Figure 1 As shown, when the clamping arm 5 is in the holding position perpendicular to the measuring ruler 1, the side of the clamping arm 5 coincides with the side of the sliding sleeve 3, which makes it easy to confirm the reading position corresponding to the clamping arm 5 (the reading on the side of the sliding sleeve 3 is the reading of the clamping arm 5).

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable tree measuring device for forestry, comprising a measuring ruler (1) with graduations on its outer wall, wherein two sliding sleeves (3) are slidably fitted on the measuring ruler (1), and each of the two sliding sleeves (3) is equipped with a clamping arm (5), characterized in that: The clamping arm (5) is rotatably mounted on the sliding sleeve (3), and the rotatable mounting on the sliding sleeve (3) has two holding positions; The two holding positions are perpendicular to the measuring scale (1) and parallel to the measuring scale (1).

2. The portable tree measuring device for forestry according to claim 1, characterized in that: Both ends of the measuring ruler (1) are equipped with end caps (2).

3. A portable tree measuring device for forestry according to claim 2, characterized in that: The end (2) is detachably mounted on the end of the measuring ruler (1) by means of mounting bolts.

4. A portable tree measuring device for forestry according to claim 1, characterized in that: The top of the sliding sleeve (3) is screwed with a locking bolt (4), which is used to press against the measuring ruler (1) to lock the position of the sliding sleeve (3).

5. A portable tree measuring device for forestry according to claim 1, characterized in that: The sliding sleeve (3) has a front opening (6) for exposing the scale.

6. A portable tree measuring device for forestry according to claim 1, characterized in that: When the clamping arm (5) is in the holding position perpendicular to the measuring ruler (1), the side of the clamping arm (5) coincides with the side of the sliding sleeve (3).

7. A portable tree measuring device for forestry according to claim 1, characterized in that: A positioning wheel (7) is fixedly installed on the sliding sleeve (3), and the positioning wheel (7) is rotatably installed in the rotating groove (8) opened on the clamping arm (5); The positioning wheel (7) has a 90-degree angled slot 1 (9) and slot 2 (10) on its side. A locking post (12) is movably locked in the slot 1 (9) and slot 2 (10). The locking post (12) is elastically telescopically set on the inner wall of the rotating groove (8).

8. A portable tree measuring device for forestry according to claim 7, characterized in that: A transition convex surface (11) is formed between the first slot (9) and the second slot (10); The end of the locking post (12) is an arc-shaped surface.

9. A portable tree measuring device for forestry according to claim 7, characterized in that: The locking pin (12) is slidably installed in the telescopic groove (13) opened on the inner wall of the rotating groove (8) and is supported by the support spring (14).

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