Forestry surveying ruler

Abstract

The utility model belongs to the technical field of surveying rulers, and particularly relates to a forestry surveying ruler which comprises a measuring outer rod, a containing cavity is formed in the measuring outer rod, a measuring inner rod is installed in the containing cavity in a sliding mode, and one end of the measuring inner rod penetrates through one end of the measuring outer rod and is connected with the measuring outer rod in a sliding mode. A limiting plate is fixedly arranged at one end of the inner measuring rod, a plurality of first limiting clamping grooves are formed in the bottom end of the outer measuring rod at equal intervals, second limiting clamping grooves are formed in the bottom end of a connecting plate, the first limiting clamping grooves and the second limiting clamping grooves are connected with a limiting assembly, and the limiting assembly is arranged in the movable seat. The movable seat is fixedly arranged at the top end of the second clamping rod, a first clamping rod is arranged at the bottom end of the outer measuring rod, and length adjusting assemblies are arranged in the first clamping rod and the second clamping rod. And clamping measurement cannot be carried out on the tree.

Description

Technical Field

[0001] The utility model belongs to the technical field of surveying rulers, and in particular relates to a forestry surveying ruler. Background Art

[0002] Forestry refers to protecting the ecological environment and maintaining ecological balance. In forestry protection surveys, trees need to be measured and surveyed, and a forestry survey ruler is needed during the survey process.

[0003] When measuring the diameter of thicker trees, the existing forestry surveying and measuring rulers have insufficient length of the clamping rod on the surface of the caliper, and cannot perform clamping measurement on the trees, and other measuring tools are required for measurement. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a forestry surveying ruler to solve the problem that when the existing forestry surveying measuring ruler is used to measure the diameter of thicker trees, the length of the caliper rod on the caliper surface is not enough, and the tree cannot be measured by caliper, and other measuring tools need to be used for measurement.

[0005] To achieve the above purpose, the utility model adopts the following technical solution: a forestry survey ruler, comprising a measuring outer rod, a storage cavity is provided inside the measuring outer rod, and a measuring inner rod is slidably installed in the storage cavity, one end of the measuring inner rod passes through one end of the measuring outer rod and is slidably connected thereto, a limit plate is fixedly installed at one end of the measuring inner rod, and a connecting plate is fixedly installed on one side of the limit plate, the connecting plate is slidably connected to one side of the bottom end of the measuring outer rod, and a plurality of limit slots are equidistantly provided at the bottom end of the measuring outer rod. , and a limit slot 2 is provided at the bottom end of the connecting plate, the limit slot 1 and the limit slot 2 are connected to the limit component, the limit component is arranged inside the movable seat, and a telescopic rod is installed through the center of the movable seat and is slidably connected with it, the two ends of the telescopic rod are respectively fixedly connected to the inner wall of one side of the bottom end of the measuring outer rod and one side of the limit plate, the movable seat is fixedly installed at the top end of the locking rod 2, and a locking rod 1 is installed at the bottom end of the measuring outer rod, and a length adjustment component is installed inside the locking rod 1 and the locking rod 2.

[0006] The beneficial effects of the utility model are:

[0007] When using this device, the position of the second engaging rod can be moved according to the thickness of the tree. The movable plate can be slid downward to drive the card block to slide into the telescopic cavity. At this time, the spring is in an elastic contraction state, and the movable seat is slid on the outside of the telescopic rod. When the movable seat slides and drives the second engaging rod to a suitable position, the movable plate can be released. At this time, the spring has no external force to squeeze it, and its elastic potential energy can make the card block move upward and slide to fit into the limiting card slot one or the limiting card slot two.

[0008] The user can rotate the rotating block to drive the bevel gear 1 to rotate. At this time, the bevel gear 2 meshing with it can make the screw rotate in the movable cavity. The rotating screw makes the movable rod threadably connected to it slide downward. The sliding movable rod can be used to measure trees with thicker diameters.

[0009] To hand carry the device:

[0010] As a further improvement of the above technical solution: a handle is fixedly mounted on the other end of the measuring outer rod.

[0011] The beneficial effect of this improvement is that the user can carry the device by hand by providing a handle.

[0012] To facilitate forestry workers to open the road:

[0013] As a further improvement of the above technical solution: a blade is fixedly mounted on the top end of the measuring outer rod.

[0014] The beneficial effect of this improvement is that the provision of the blade can make it easier for forestry workers to clear a path when encountering obstacles.

[0015] To limit the measuring inner rod:

[0016] As a further improvement of the above technical solution: a bolt is threadedly installed on the upper end of the upper end of the measuring outer rod that passes through the storage cavity, and an extrusion plate is rotatably installed on the bottom end of the bolt.

[0017] The beneficial effect of this improvement is that the user can slide the measuring inner rod out of the storage cavity according to needs, and after the sliding measuring inner rod reaches a suitable length, the bolt can be turned to make the extrusion plate press against the measuring inner rod to limit the measuring inner rod.

[0018] In order to move the position of the second locking rod according to the thickness of the tree:

[0019] As a further improvement of the above technical solution: the limiting assembly is composed of a card block, a sliding window, and a telescopic cavity. The movable seat is provided with a telescopic cavity inside, and a spring is fixedly installed inside the telescopic cavity. One end of the spring is fixedly connected to one end of the card block, and the other end of the card block passes through the top of the movable seat and is slidably connected thereto. A sliding window is provided on the front side of the telescopic cavity that passes through the front side of the movable seat, and a movable plate is slidably installed in the sliding window, and one end of the movable plate is connected to the card block.

[0020] The beneficial effect of this improvement is that when using this device, the position of the second engaging rod can be moved according to the thickness of the tree, and the movable plate can be slid downward to drive the card block to slide into the telescopic cavity. At this time, the spring is in an elastic contraction state, and the movable seat is slid on the outside of the telescopic rod. When the movable seat slides and drives the second engaging rod to a suitable position, the movable plate can be released. At this time, the spring is not squeezed by external force, and its elastic potential energy can make the card block move upward and slide to fit into the limiting card slot one or the limiting card slot two.

[0021] To make this device suitable for measuring trees with larger diameters:

[0022] As a further improvement of the above technical solution: the length adjustment assembly consists of a bevel gear 1, a bevel gear 2, and an installation cavity, the inner top ends of the engaging rod 1 and the engaging rod 2 are both provided with installation cavities, and a movable cavity is provided below the installation cavity, a bevel gear 1 is rotatably installed on the inner wall of one side of the installation cavity, and a rotating rod is fixedly installed on one end of the bevel gear 1, the rotating rod passes through one side of the top end of the engaging rod 1 and the engaging rod 2 and is rotatably connected thereto, and a rotating block is fixedly installed on one end of the rotating rod, a bevel gear 2 is meshingly installed on one side of the bevel gear 1, and the bevel gear 2 is rotatably installed at the bottom end of the installation cavity, the bottom end of the bevel gear 2 is fixedly installed by a screw, and the screw passes through the top end of the movable cavity and is rotatably connected thereto, the bottom end of the screw passes through the inside of one end of the movable rod and is threadedly connected thereto, and the movable rod is slidably installed in the movable cavity, and a fitting block is fixedly installed at the bottom end of the movable rod.

[0023] The beneficial effect of the present improvement is that the user can rotate the rotating block to drive the bevel gear 1 to rotate, and the bevel gear 2 meshing with it can make the screw rotate in the movable chamber, and the rotating screw makes the movable rod threadably connected to it slide downward, and the sliding movable rod can be used to measure trees with thicker diameters.

[0024] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the utility model;

[0026] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the second engaging rod of the utility model;

[0028] Figure 4 It is a schematic diagram of the cross-sectional structure of the storage cavity of the utility model;

[0029] Figure 5This is a schematic diagram of the installation cavity structure of the utility model;

[0030] Figure 6 This is a schematic diagram of the telescopic cavity structure of the utility model;

[0031] In the figure: 1. measuring outer rod; 2. handle; 3. measuring inner rod; 4. bolt; 5. limit plate; 6. connecting plate; 7. telescopic rod; 8. snap-fit ​​rod 1; 9. snap-fit ​​rod 2; 10. movable seat; 11. clamping block; 12. sliding window; 13. rotating block; 14. fitting block; 15. movable rod; 16. limit slot 1; 17. limit slot 2; 18. screw; 19. storage chamber; 20. extrusion plate; 21. telescopic chamber; 22. bevel gear 1; 23. bevel gear 2; 24. installation chamber. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.

[0033] like Figure 1-6 As shown, a forestry survey ruler comprises a measuring outer rod 1, a storage cavity 19 is provided inside the measuring outer rod 1, and a measuring inner rod 3 is slidably installed in the storage cavity 19, one end of the measuring inner rod 3 passes through one end of the measuring outer rod 1 and is slidably connected thereto, a limiting plate 5 is fixedly installed at one end of the measuring inner rod 3, and a connecting plate 6 is fixedly installed on one side of the limiting plate 5, and the connecting plate 6 is slidably connected to one side of the bottom end of the measuring outer rod 1, a plurality of limiting card slots 16 are equidistantly provided at the bottom end of the measuring outer rod 1, and a limiting card slot 16 is provided at the bottom end of the connecting plate 6 There is a limiting card slot 17, the limiting card slot 16 and the limiting card slot 2 17 are connected to the limiting component, the limiting component is arranged inside the movable seat 10, and a telescopic rod 7 is installed through the center of the movable seat 10 and is slidably connected thereto, the two ends of the telescopic rod 7 are respectively fixedly connected to the inner wall of one side of the bottom end of the measuring outer rod 1 and one side of the limiting plate 5, the movable seat 10 is fixedly installed on the top of the engaging rod 2 9, and the engaging rod 1 8 is installed at the bottom end of the measuring outer rod 1, and the length adjustment components are installed inside the engaging rod 1 8 and the engaging rod 2 9.

[0034] A handle 2 is fixedly mounted on the other end of the measuring outer rod 1; the handle 2 is provided so that the user can carry the device by hand.

[0035] A blade is fixedly mounted on the top of the measuring outer rod 1; the blade can make it easier for forestry workers to clear a path when encountering obstacles.

[0036] The upper end of the measuring outer rod 1 passes through the storage chamber 19 and a bolt 4 is threadedly installed on the upper end. The bottom end of the bolt 4 is rotatably installed with an extrusion plate 20. The user can slide the measuring inner rod 3 out of the storage chamber 19 according to needs, and after the slid measuring inner rod 3 reaches a suitable length, the bolt 4 can be rotated to make the extrusion plate 20 press against the measuring inner rod 3 to limit the measuring inner rod 3.

[0037] The limit assembly is composed of a block 11, a sliding window 12, and a telescopic cavity 21. The movable seat 10 is provided with a telescopic cavity 21, and a spring is fixedly installed inside the telescopic cavity 21. One end of the spring is fixedly connected to one end of the block 11, and the other end of the block 11 passes through the top of the movable seat 10 and is slidably connected thereto. The front side of the telescopic cavity 21 passes through the front side of the movable seat 10 and is provided with a sliding window 12, and a movable plate is slidably installed in the sliding window 12, and one end of the movable plate is connected to the block 11. When using the device, the position of the engaging rod 29 can be moved according to the thickness of the tree. The movable plate can be slid downward to drive the block 11 to slide into the telescopic cavity 21. At this time, the spring is in an elastic contraction state, and the movable seat 10 is slid on the outside of the telescopic rod 7. When the movable seat 10 slides and drives the engaging rod 29 to move to a suitable position, the movable plate can be released. At this time, the spring is not squeezed by external force, and its elastic potential energy can make the block 11 move upward and slide to fit into the limit slot 1 16 or the limit slot 2 17.

[0038] The length adjustment assembly is composed of a bevel gear 1 22, a bevel gear 23, and an installation cavity 24. The inner tops of the engaging rods 1 8 and 2 9 are provided with installation cavities 24, and a movable cavity is provided below the installation cavity 24. A bevel gear 1 22 is rotatably installed on the inner wall of one side of the installation cavity 24, and a rotating rod is fixedly installed at one end of the bevel gear 1 22. The rotating rod passes through one side of the top of the engaging rods 1 8 and 2 9 and is rotatably connected thereto, and a rotating block 13 is fixedly installed at one end of the rotating rod, a bevel gear 23 is meshingly installed on one side of the bevel gear 1 22, and the bevel gear 23 is rotatably installed at the bottom of the installation cavity 24, and the bevel gear 23 is rotatably installed at the bottom of the installation cavity 24. The bottom end of the bevel gear 23 is fixedly installed by a screw 18, and the screw 18 passes through the top of the movable cavity and is rotatably connected thereto, the bottom end of the screw 18 passes through one end of the movable rod 15 and is threadedly connected thereto, and the movable rod 15 is slidably installed in the movable cavity, and the bottom end of the movable rod 15 is fixedly installed with a fitting block 14; the user can rotate the rotating block 13 to drive the bevel gear 22 to rotate, and the bevel gear 23 meshing with it can make the screw 18 rotate in the movable cavity, and the rotating screw 18 makes the movable rod 15 threadably connected thereto slide downward, and the sliding movable rod 15 can be used to measure trees with thicker diameters.

[0039] The working principle and use process of the utility model are as follows: the user can make the measuring inner rod 3 slide out from the storage chamber 19 according to the needs, and after the sliding measuring inner rod 3 reaches a suitable length, the bolt 4 can be rotated to make the extrusion plate 20 press against the measuring inner rod 3 to limit the measuring inner rod 3, and the position of the clamping rod 29 can be moved according to the thickness of the tree, and the movable plate can be slid downward to drive the clamping block 11 to slide into the telescopic chamber 21. At this time, the spring is in an elastic contraction state, and the movable seat 10 slides on the outside of the telescopic rod 7, and when the movable seat 10 slides After driving the engaging rod 2 9 to move to a suitable position, the movable plate can be loosened. At this time, the spring is not squeezed by external force, and its elastic potential energy can make the clamping block 11 move upward and slide to be embedded in the limiting clamping groove 1 16 or the limiting clamping groove 2 17. The rotating block 13 is rotated to drive the bevel gear 1 22 to rotate. At this time, the bevel gear 23 meshing with it can make the screw 18 rotate in the movable cavity. The rotating screw 18 makes the movable rod 15 threadedly connected to it slide downward, and the sliding movable rod 15 can be used to measure trees with thicker diameters.

Claims

1. A forestry surveying ruler, characterized in that: The invention comprises a measuring outer rod (1), wherein a storage cavity (19) is provided inside the measuring outer rod (1), and a measuring inner rod (3) is slidably installed in the storage cavity (19), one end of the measuring inner rod (3) passes through one end of the measuring outer rod (1) and is slidably connected thereto, a limiting plate (5) is fixedly installed on one end of the measuring inner rod (3), and a connecting plate (6) is fixedly installed on one side of the limiting plate (5), and the connecting plate (6) is slidably connected to one side of the bottom end of the measuring outer rod (1), and a plurality of limiting slots (16) are equidistantly provided at the bottom end of the measuring outer rod (1), and a limiting slot is provided at the bottom end of the connecting plate (6). The first limit slot (16) and the second limit slot (17) are connected to a limit assembly, the limit assembly is arranged inside the movable seat (10), and a telescopic rod (7) is installed through the center of the movable seat (10) and is slidably connected thereto, the two ends of the telescopic rod (7) are respectively fixedly connected to the inner wall of the bottom end of the measuring outer rod (1) and one side of the limit plate (5), the movable seat (10) is fixedly arranged on the top of the second clamping rod (9), and the bottom end of the measuring outer rod (1) is provided with a first clamping rod (8), and the insides of the first clamping rod (8) and the second clamping rod (9) are both provided with length adjustment assemblies.

2. A forestry surveying ruler according to claim 1, characterized in that: A handle (2) is fixedly mounted on the other end of the measuring outer rod (1).

3. A forestry surveying ruler according to claim 1, characterized in that: A blade is fixedly mounted on the top end of the measuring outer rod (1).

4. A forestry surveying ruler according to claim 1, characterized in that: A bolt (4) is threadedly mounted on the upper end of the measuring outer rod (1) that passes through the receiving cavity (19), and a pressing plate (20) is rotatably mounted on the lower end of the bolt (4).

5. The forestry surveying ruler according to claim 1, characterized in that: The limit assembly is composed of a clamping block (11), a sliding window (12), and a telescopic cavity (21); the movable seat (10) is provided with a telescopic cavity (21), and a spring is fixedly installed inside the telescopic cavity (21); one end of the spring is fixedly connected to one end of the clamping block (11), and the other end of the clamping block (11) passes through the top of the movable seat (10) and is slidably connected thereto; the front side of the telescopic cavity (21) is provided with a sliding window (12) that passes through the front side of the movable seat (10), and a movable plate is slidably installed in the sliding window (12), and one end of the movable plate is connected to the clamping block (11).

6. The forestry surveying ruler according to claim 1, characterized in that: The length adjustment assembly is composed of a bevel gear 1 (22), a bevel gear 2 (23), and a mounting cavity (24). The top ends of the locking rod 1 (8) and the locking rod 2 (9) are both provided with a mounting cavity (24), and a movable cavity is provided below the mounting cavity (24). The inner wall of one side of the mounting cavity (24) is rotatably mounted with a bevel gear 1 (22), and one end of the bevel gear 1 (22) is fixedly mounted with a rotating rod, the rotating rod passes through one side of the top ends of the locking rod 1 (8) and the locking rod 2 (9) and is rotatably connected thereto, and one end of the rotating rod is fixedly mounted with a rotating rod. A movable block (13), one side of the bevel gear one (22) is meshed with a bevel gear two (23), and the bevel gear two (23) is rotatably mounted at the bottom end of the mounting cavity (24), the bottom end of the bevel gear two (23) is fixedly mounted by a screw rod (18), and the screw rod (18) passes through the top of the movable cavity and is rotatably connected thereto, the bottom end of the screw rod (18) passes through the interior of one end of a movable rod (15) and is threadedly connected thereto, and the movable rod (15) is slidably mounted in the movable cavity, and the bottom end of the movable rod (15) is fixedly mounted with a fitting block (14).

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