Portable tree diameter measuring caliper

Abstract

The utility model relates to the technical field of measuring tools, in particular to a portable tree diameter measuring caliper which comprises a main ruler, a sliding block is slidably sleeved on the main ruler, a straight rod is arranged at the center of the bottom end of the inner side wall of the sliding block, a storage box is welded and fixed on the top surface of the main ruler, and a right clamping jaw and a left clamping jaw which are mutually clamped are slidably connected in the storage box. The right clamping jaw and the left clamping jaw are hinged through a hinge column arranged at the front end of the storage box. According to the portable tree diameter measuring caliper, trees with large diameters can be measured through the left clamping jaw, the right clamping jaw and the straight rod, meanwhile, the left clamping jaw and the right clamping jaw can be stored through the storage box, the long-strip sliding hole and the hinge column, and the portable tree diameter measuring caliper is convenient to carry.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring tools, and more specifically, to a portable tree diameter measuring caliper. Background Art

[0002] In the fields of forestry, gardening, etc., in order to understand the growth status of trees, the staff of forestry departments need to often measure the diameter of trees. Traditional measurement methods usually use a tape measure or a straight ruler, but these tools have some inconveniences when measuring the diameter of trees.

[0003] The utility model patent with the authorization announcement number CN216205905U discloses a nursery stock breast diameter measuring caliper, the structure of which includes a main scale and a vernier scale. A right clamping member is fixedly arranged on the vernier scale. The right clamping member includes a semi-circular right arc rod and a right straight rod connecting one end of the right arc rod. The right straight rod extends towards the outside of the caliper for clamping on one side of the nursery stock breast diameter. A left clamping member is arranged at the starting end of the scale of the main scale. The left clamping member includes a left straight rod fixed on the starting end of the main scale and a semi-circular left arc rod fixed on the left straight rod. One end of the left straight rod is vertically intersected with the main scale, and the other end of the left straight rod is used for clamping on the other side of the nursery stock breast diameter. When the vernier scale indicates the initial value of the scale of the main scale, the rod surfaces of the right straight rod of the right clamping member and the left straight rod of the left clamping member are mutually attached left and right, and the right arc rod of the right clamping member and the left arc rod of the left clamping member are combined into a ring.

[0004] Although in this technical solution, when the vernier scale is in the initial position, the arc-shaped rods on the left clamping member and the right clamping member can be combined into a ring, which is not only beautiful but also convenient to grip and convenient for the staff to use. In addition, in the utility model, extension rods are arranged at the free end of the right straight rod of the right clamping member and the end of the left straight rod to increase the measurement range of the nursery stock breast diameter of the utility model. However, this technical solution can only be used to measure the diameter of trees with relatively small sizes, and at the same time, the size of the measuring caliper is relatively large and not convenient to carry. In view of this, we propose a portable tree diameter measuring caliper. Summary of the Utility Model

[0005] In view of the above defects or deficiencies in the prior art, it is desirable to provide a portable tree diameter measuring caliper.

[0006] In a first aspect, the present application provides a portable tree diameter measuring caliper, including a main scale, a slider is slidably sleeved on the main scale, a straight rod is arranged at the center of the bottom end of the inner side wall of the slider, a storage box is fixedly welded on the top surface of the main scale, a right claw and a left claw that are mutually engaged are slidably connected in the storage box, and the right claw and the left claw are hinged through a hinge column arranged at the front end of the storage box.

[0007] According to the technical solution provided by the embodiment of the present application, scale lines are arranged at the edge of the top surface of the main scale, and a chute adapted to the straight rod is opened at the center of the bottom surface of the main scale.

[0008] According to the technical solution provided by the embodiment of the present application, a cushion block is adhesively fixed to one end of the straight rod away from the slider, and the end of the straight rod close to the slider is fixedly welded thereto.

[0009] According to the technical solution provided by the embodiment of the present application, threaded holes are provided on both sides of the top side wall of the storage box near the opening end, and fastening bolts are threadedly connected in the threaded holes.

[0010] According to the technical solution provided by the embodiment of the present application, insertion blocks are integrally formed on the opposite surfaces of the right claw and the left claw, and grooves adapted to the size of the insertion blocks are provided on the opposite surfaces of the left claw and the right claw.

[0011] According to the technical solution provided by the embodiment of the present application, a handle is fixedly welded to the end of the right claw, and long strip sliding holes adapted to the hinge column are provided at the center of the insertion block and on the upper and lower side walls of the left claw in the groove.

[0012] According to the technical solution provided by the embodiment of the present application, when the right claw and the left claw extend outwards along the storage box and rotate relative to each other to the maximum hinge angle, the included angle between the right claw and the left claw is 60°.

[0013] In summary, the present technical solution specifically discloses a portable tree diameter measuring caliper, which includes a main scale, a slider is slidably sleeved on the main scale, a straight rod is provided at the center of the bottom end of the inner side wall of the slider, a storage box is fixedly welded to the top surface of the main scale, a right claw and a left claw that are mutually engaged are slidably connected in the storage box, and the right claw and the left claw are hinged through a hinge column provided at the front end of the storage box; the left claw, the right claw and the straight rod can be used to measure the diameter of a larger tree, and at the same time, the storage box, the long strip sliding holes and the hinge column can be used to store the left claw and the right claw, which is convenient to carry. Description of the Drawings

[0014] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, objects and advantages of the present application will become more obvious:

[0015] Figure 1 One of the overall structural schematic diagrams of the utility model;

[0016] Figure 2 Two of the overall structural schematic diagrams of the utility model;

[0017] Figure 3 The overall structural explosion diagram of the utility model;

[0018] Figure 4 The overall structural top view of the utility model;

[0019] In the figure:

[0020] 1. Main scale; 11. Scale line; 12. Slide groove;

[0021] 2. Slide block;

[0022] 3. Straight rod; 31. Spacer block;

[0023] 4. Storage box; 41. Threaded hole;

[0024] 5. Hinge column;

[0025] 6. Right jaw; 61. Insert block; 62. Handle;

[0026] 7. Left jaw; 71. Groove;

[0027] 8. Tightening bolt;

[0028] 9. Long strip slide hole. Detailed implementation mode

[0029] The following further details the present application in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only for explaining the relevant utility model and not for limiting the utility model. In addition, it should be noted that for the convenience of description, only the parts related to the utility model are shown in the drawings.

[0030] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will detail the present application with reference to the drawings and in conjunction with the embodiments.

[0031] Please refer to Figures 1 - 4 , a portable tree diameter measuring caliper, including a main scale 1, a slide block 2 is slidably sleeved on the main scale 1, a straight rod 3 is provided at the center of the bottom end of the inner side wall of the slide block 2, a storage box 4 is welded and fixed on the top surface of the main scale 1, a right jaw 6 and a left jaw 7 that are engaged with each other are slidably connected in the storage box 4, and the right jaw 6 and the left jaw 7 are hinged through a hinge column 5 provided at the front end of the storage box 4.

[0032] In this embodiment, scale lines 11 are provided at the edge of the top surface of the main scale 1, and a slide groove 12 adapted to the straight rod 3 is opened at the center of the bottom surface of the main scale 1; the scale lines 11 are used to mark the diameter of the tree, and the data of the scale lines 11 are correspondingly converted according to that twice the radius of the tree is equal to the sum of the distance that the straight rod 3 extends and the radius of the tree, and the slide groove 12 facilitates the back-and-forth sliding of the straight rod 3.

[0033] Furthermore, a spacer block 31 is adhesively fixed to the end of the straight rod 3 away from the slide block 2, and the straight rod 3 is welded and fixed to the end close to the slide block 2; the spacer block 31 is used to abut against the tree, and the welded fixation makes the connection between the straight rod 3 and the slide block 2 firm.

[0034] Secondly, threaded holes 41 are provided on both sides of the top side wall of the storage box 4 near the opening end, and fastening bolts 8 are threadedly connected in the threaded holes 41; the fastening bolts 8 are used to fix the right claw 6 and the left claw 7 when the right claw 6 and the left claw 7 extend outwards and rotate to the maximum hinge angle.

[0035] Furthermore, inserting blocks 61 are integrally formed on the opposite surfaces of the right claw 6 and the left claw 7, and grooves 71 adapted to the size of the inserting blocks 61 are provided on the opposite surfaces of the left claw 7 and the right claw 6; the mutually adapted inserting blocks 61 and grooves 71 enable the left claw 7 and the right claw 6 to be engaged with each other.

[0036] Secondly, a handle 62 is fixedly welded to the end of the right claw 6, and long strip sliding holes 9 adapted to the hinge column 5 are provided at the center of the inserting block 61 and on the upper and lower side walls of the left claw 7 in the groove 71; the handle 62 facilitates pulling the right claw 6 and the left claw 7 out of the storage box 4.

[0037] Furthermore, when the right claw 6 and the left claw 7 extend outwards along the storage box 4 and rotate relative to each other to the maximum hinge angle, the included angle between the right claw 6 and the left claw 7 is 60°; the design of the 60° included angle enables an equilateral triangle to be formed among the right claw 6, the left claw 7 and the tree radius, which facilitates converting the extended length of the straight rod 3 into the tree diameter.

[0038] Working principle: When the portable tree diameter measuring caliper of the present utility model is in use, the user first pulls out the right claw 6 and the left claw 7 through the handle 62, then rotates the right claw 6 and the left claw 7 in opposite directions so that the included angle between them is 60°, then fixes them through the fastening bolts 8, then moves the caliper so that the tree is placed between the right claw 6 and the left claw 7 and is tangent to both of them, and finally slides the slider 2 so that the cushion block 31 abuts against the tree surface, and reads the converted diameter data corresponding to the scale line 11.

[0039] The above description is only the preferred embodiment of the present application and the explanation of the applied technical principle. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept of the utility model. For example, the technical solutions formed by mutually replacing the above features with the technical features disclosed in the present application but not limited to having similar functions.

Claims

1. Portable tree diameter measuring caliper, comprising a main scale (1), characterized in that: A slider (2) is slidably sleeved on the main ruler (1), a straight rod (3) is provided at the center of the bottom end of the inner wall of the slider (2), a storage box (4) is welded and fixed to the top surface of the main ruler (1), a right clamping claw (6) and a left clamping claw (7) that engage with each other are slidably connected in the storage box (4), and the right clamping claw (6) and the left clamping claw (7) are hingedly connected via a hinge column (5) provided at the front end of the storage box (4).

2. The portable tree diameter measuring caliper according to claim 1, characterized in that: A scale mark (11) is provided at the edge of the top surface of the main ruler (1), and a sliding groove (12) adapted to the straight rod (3) is provided at the center of the bottom surface of the main ruler (1).

3. The portable tree diameter measuring caliper according to claim 1, characterized in that: A pad (31) is adhesively fixed to one end of the straight rod (3) away from the slider (2), and an end of the straight rod (3) close to the slider (2) is welded and fixed to the slider (2).

4. The portable tree diameter measuring caliper according to claim 1, wherein: The top side wall of the storage box (4) is provided with threaded holes (41) on both sides close to the opening end, and the threaded holes (41) are internally threadedly connected with fastening bolts (8).

5. The portable tree diameter measuring caliper according to claim 1, characterized in that: An insert block (61) is integrally formed on the opposing surfaces of the right clamping claw (6) and the left clamping claw (7), and a groove (71) matching the size of the insert block (61) is provided on the opposing surfaces of the left clamping claw (7) and the right clamping claw (6).

6. The portable tree diameter measuring caliper according to claim 5, wherein: A handle (62) is welded and fixed to the end of the right clamping claw (6), and long sliding holes (9) adapted to the hinge column (5) are provided at the center of the insert block (61) and on the upper and lower side walls of the groove (71) of the left clamping claw (7).

7. The portable tree diameter measuring caliper according to claim 1, characterized in that: When the right clamping claw (6) and the left clamping claw (7) extend outwards along the storage box (4) and rotate relative to each other to the maximum hinge angle, the angle between the right clamping claw (6) and the left clamping claw (7) is 60°.

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