A device for automatically measuring the diameter at breast height of trees

Abstract

A device for automatically measuring the diameter of a tree at breast height, wherein a motor is fixedly installed on the lower end surface of a limit groove, a shaft of the motor is fixedly connected to a shaft of a lead screw, the lead screw is rotatably installed in the limit groove, and the upper end of the lead screw of a moving lead screw mechanism A is not provided with a thread; a moving lead screw mechanism B is installed inside the moving lead screw mechanism A, and the moving lead screw mechanism B comprises: a lead screw, a sliding block, a moving frame, and a clamping block; the lead screw of the moving lead screw mechanism B is rotatably installed inside the lead screw of the moving lead screw mechanism A, and a threaded hole is provided on the moving frame of the moving lead screw mechanism B, and the threaded hole is matched with the lead screw thread of the moving lead screw mechanism A; a cylindrical gear E rotates one circle, thereby driving an eccentric circle to rotate one circle, so that the eccentric circle drives the moving round rod to extend and retract, thereby driving a ratchet A to swing, and then driving a tens counting disk to rotate, and the number of turns of the coil can be seen according to the numbers on the ones counting disk and the tens counting disk, so that the tree diameter at breast height can be calculated.

Description

Technical Field

[0001] The invention relates to the technical field of manual tools, in particular to a device for automatically measuring the diameter at breast height of a tree. Background Art

[0002] Measuring the tree diameter at breast height is an important part of forest survey. Forest survey is a basic technical work for obtaining forest resource information and conducting various forestry analysis and decision-making. The forest volume obtained by different survey methods is different. However, at present, the common method in field measurement is to manually measure with a breast diameter ruler or install a breast diameter measuring ring and read them manually one by one at a fixed time, which is time-consuming and labor-intensive, and the accuracy is very low. Therefore, it is necessary to invent a device for automatically measuring the breast diameter of trees, which can not only improve work efficiency, but also retain the data of the breast diameter of the same tree at different heights, which is convenient and practical. Summary of the invention

[0003] In view of the above technical problems, the present invention provides a device for automatically measuring the diameter at breast height of trees, which is not only small, convenient and easy to carry, but also can measure the diameter at breast height of three different positions of the same tree, which is convenient and fast.

[0004] The technical solution used in the present invention is: a device for automatically measuring the diameter at breast height of a tree, comprising: a manual control button, a moving screw mechanism A, a moving screw mechanism B, a moving screw mechanism C, a square housing A, and a square housing B;

[0005] The manual control button is installed on the side of the moving screw mechanism A; the moving screw mechanism A needs to be manually held, and the moving screw mechanism A includes: a screw, a motor, and a limit groove; the motor is fixedly installed on the lower end surface of the limit groove, the shaft of the motor is fixedly connected to the shaft of the screw, the screw is rotatably installed in the limit groove, and the upper end of the screw of the moving screw mechanism A is not provided with a thread; the moving screw mechanism B is installed inside the moving screw mechanism A, and the moving screw mechanism B includes: a screw, a sliding block, a moving frame, and a clamping block; the screw of the moving screw mechanism B is rotatably installed on the moving screw A threaded hole is provided inside the lead screw of the lever mechanism A and on the moving frame of the moving lead screw mechanism B, and the threaded hole matches with the lead screw thread of the moving lead screw mechanism A, and the sliding block of the moving lead screw mechanism B matches with the lead screw thread of the moving lead screw mechanism B, and a square block is fixedly installed on the upper end of the sliding block, and the clamping block of the moving lead screw mechanism B is fixedly installed on the inner side of the lower end of the moving frame of the moving lead screw mechanism B. When the moving frame of the moving lead screw mechanism B moves the upper end of the moving lead screw mechanism A, the clamping block of the moving lead screw mechanism B locks the lead screw of the moving lead screw mechanism A with the lead screw of the moving lead screw mechanism B;

[0006] An automatic device for measuring the diameter at breast height of a tree also includes: a gear transmission mechanism, an irregular bracket, a fan-shaped slide rail A, a telescopic spring, a fan-shaped slide rail B, a fan-shaped slide rail C, a fan-shaped slide rail D, and a rolling wheel;

[0007] The gear transmission mechanism includes gears, belts, pulleys, and a motor; there are four gears, which are rotatably mounted on the irregular brackets, and the four gears are connected by belts and pulleys, respectively. The shaft of one of the gears is fixedly connected to the shaft of the motor fixedly mounted on the irregular bracket; the irregular bracket is fixedly mounted in a square housing B; a fan-shaped slide rail A is fixedly mounted inside the square housing B, and a fan-shaped slide rail B is slidably mounted in the slide groove of the fan-shaped slide rail A, and the teeth on the side of the fan-shaped slide rail B are aligned with the gears of the gear transmission mechanism. The fan-shaped slide rails A, B and C are meshed with each other. The teeth on the side of the fan-shaped slide rail C mesh with the gears of the gear transmission mechanism. The slider on the lower end surface of the fan-shaped slide rail D is slidably installed in the slide groove of the fan-shaped slide rail C. The side of the fan-shaped slide rail D is provided with gear teeth, which mesh with the gears of the gear transmission mechanism. A baffle is provided at one end of the fan-shaped slide rails A, B and C to prevent sliding out. A telescopic spring is fixedly installed on the inner side of the fan-shaped slide rail D, and the telescopic rod end of the telescopic spring is fixedly connected to the rolling wheel.

[0008] An automatic device for measuring the diameter at breast height of a tree also includes: a coil, a coil spring, a large ratchet wheel, a cylindrical gear A, a cylindrical gear B, a cylindrical gear C, a spur rack, a cylindrical gear D, and a special-shaped support frame;

[0009] Furthermore, the coil is rotatably mounted on the special-shaped support frame, the wire of the coil is connected to the axis of the rolling wheel, the axis of the coil is fixedly connected to the axis of the coil spring, one end of the coil spring is fixedly connected to the special-shaped support frame, and the special-shaped support frame is fixedly mounted inside the square shell B; the large ratchet wheel is rotatably mounted on the special-shaped support frame, the large ratchet wheel and the coil are connected by a belt and a pulley, the large ratchet wheel and the coil spring have the same diameter, the large ratchet wheel and the cylindrical gear A are meshed with each other, the large ratchet wheel and the cylindrical gear A have the same number of teeth, the cylindrical gear A is rotatably mounted on the special-shaped support frame, and the cylindrical gear Wheel A and cylindrical gear B mesh with each other, and cylindrical gear A and cylindrical gear B have the same number of teeth; cylindrical gear B is rotatably installed on a special-shaped support frame, a telescopic rod is fixedly installed on the axis of cylindrical gear B, one end of the telescopic rod is fixedly connected to cylindrical gear C, the telescopic rod is rotatably connected to the upper end of the spur rack, the spur rack and cylindrical gear D mesh with each other, cylindrical gear D is rotatably installed inside a square housing B, the axis of cylindrical gear D is fixedly connected to the axis of a motor fixedly installed inside the square housing B, and the motor inside the square housing B is controlled by a manual control button.

[0010] A device for automatically measuring the diameter at breast height of a tree also includes: a telescopic spring;

[0011] A spring is arranged on the outside of the telescopic spring, one end of the spring is connected to the rolling wheel, and the other end of the spring is fixedly connected to the inside of the fan-shaped slide rail D.

[0012] Furthermore, the movable screw mechanism C is fixedly mounted on the square block of the movable screw mechanism B, and the movable screw mechanism C includes: a screw, a limit rod, a motor, and a slider; the bracket is fixedly mounted on the sides of the square shell A and the square shell B, the thread direction of the screw is opposite from the middle to both sides, the screw is threadedly connected to the slider, the limit rod is slidingly connected to the hole on the slider, the motor is fixedly mounted on the side panel of the limit rod, and the shaft of the motor is fixedly connected to the shaft of the screw; the square shell A and the square shell B are respectively fixedly mounted on the slider of the movable screw mechanism C.

[0013] Furthermore, the device for automatically measuring the diameter at breast height of a tree also includes: a cylindrical gear E, an irregular frame, a movable round rod, an eccentric circle, a ratchet A, a ones-digit counting disk, a tens-digit counting disk, an irregular card block, and a ratchet B;

[0014] There are three cylindrical gears E, which are all rotatably mounted on a shaft. The bottom cylindrical gear E is always meshed with the cylindrical gear B. An electromagnetic buckle is installed in the bottom cylindrical gear E. The two upper cylindrical gears E are intermittently meshed with the cylindrical gear C respectively. The cylindrical gear E is rotatably mounted inside the square housing B. The shaft of the cylindrical gear E is fixedly connected to the shaft of the eccentric circle. The eccentric circle is rotatably mounted in the hole of the irregular frame. The irregular frame is fixedly mounted inside the square housing B. The eccentric circle contacts the moving rod. The moving rod is slidably mounted on In the hole of the irregular frame, one end of the moving round rod is fixedly connected to the spring, the other end of the spring is fixedly connected to the irregular frame, a rod is provided on the side of the moving round rod, and the rod is fixedly connected to the pawl A; the pawl A is rotatably installed on the irregular frame, the pawl A cooperates with the inner ratchet of the ones-digit counting disk, and the outer side of the ones-digit counting disk is provided with numbers; the tens-digit counting disk is rotatably installed on the irregular frame, and the tens-digit counting disk is provided with an inner ratchet; the irregular card block is fixedly installed on the side of the irregular frame; the pawl B is rotatably installed on the side of the ones-digit counting disk, and the pawl B cooperates indirectly with the teeth of the tens-digit counting disk.

[0015] Furthermore, the square shell A is made of stainless steel.

[0016] The beneficial effects of the present invention compared with the prior art are:

[0017] 1. The cylindrical gear E rotates one circle, which in turn drives the eccentric circle to rotate one circle, so that the eccentric circle drives the moving rod to extend and retract, which in turn drives the pawl A to swing, and then drives the tens counting disk to rotate. The number of circles the coil rotates can be seen from the numbers on the ones counting disk and the tens counting disk, so that the tree's breast diameter can be calculated.

[0018] 2. Pull the wire of the coil through the rolling wheel to make the coil rotate, and then drive the winding spring to rotate. When the measurement is completed, the winding spring rotates in the opposite direction, which drives the coil to rotate in the opposite direction, so that the wire is wound around the coil again, which is convenient for next use.

[0019] 3. When the coil rotates to measure the diameter at breast height, the large ratchet wheel is driven to rotate through the rotation of the coil, thereby driving the cylindrical gear A and cylindrical gear B to rotate. Since the circumference of the coil is fixed, the number of circles the coil rotates multiplied by the circumference of the coil is the diameter at breast height of the tree. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 , 2 3 is a schematic diagram of the overall structure of the present invention.

[0021] Figure 4 , 5 7 is a schematic diagram of the internal structure of the present invention.

[0022] Figure 6 For the present invention Figure 5 Schematic enlargement of the structure at C.

[0023] Figure 8 , 9 For the present invention Figure 7 Schematic diagram of the structure of part of the structure.

[0024] Reference Numbers

[0025] 1-manual control button; 2-moving screw mechanism A; 3-moving screw mechanism B; 4-moving screw mechanism C; 5-square shell A; 6-square shell B; 7-gear transmission mechanism; 8-irregular bracket; 9-fan-shaped slide rail A; 10-telescopic spring; 11-fan-shaped slide rail B; 12-fan-shaped slide rail C; 13-fan-shaped slide rail D; 14-rolling wheel; 15-coil; 16-winding spring; 17-large ratchet wheel; 18-cylindrical gear A; 19-cylindrical gear B; 20-cylindrical gear C; 21-spur rack; 22-cylindrical gear D; 23-cylindrical gear E; 24-irregular shelf; 25-moving round rod; 26-eccentric circle; 27-ratchet A; 28-ones counting disk; 29-tens counting disk; 30-irregular block; 31-ratchet B; 32-special-shaped support frame. DETAILED DESCRIPTION

[0026] The technical solution of the present invention is further specifically described below by way of embodiments and in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific implementation disclosed below.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Examples, such as Figure 1-9 As shown, a device for automatically measuring the diameter at breast height of a tree comprises: a manual control button 1, a moving screw mechanism A2, a moving screw mechanism B3, a moving screw mechanism C4, a square housing A5, and a square housing B6;

[0029] The manual control button 1 is installed on the side of the moving screw mechanism A2; the moving screw mechanism A2 needs to be manually held, and the moving screw mechanism A2 includes: a screw, a motor, and a limit groove; the motor is fixedly installed on the lower end surface of the limit groove, the shaft of the motor is fixedly connected to the shaft of the screw, the screw is rotatably installed in the limit groove, and the upper end of the screw of the moving screw mechanism A2 is not provided with a thread; the moving screw mechanism B3 is installed inside the moving screw mechanism A2, and the moving screw mechanism B3 includes: a screw, a sliding block, a moving frame, and a clamping block; the screw of the moving screw mechanism B3 is rotatably installed inside the screw of the moving screw mechanism A2, and a threaded hole is provided on the moving frame of the moving screw mechanism B3, and the threaded hole cooperates with the screw thread of the moving screw mechanism A2, the sliding block of the moving screw mechanism B3 cooperates with the screw thread of the moving screw mechanism B3, and a square block is fixedly installed on the upper end of the sliding block. Specifically, when the moving frame of the moving screw mechanism B3 moves the upper end of the moving screw mechanism A2, since the top of the screw of the moving screw mechanism A2 is not provided with a thread The movable frame of the movable screw mechanism B3 cannot move further, and at this time, the clamping block of the movable screw mechanism B3 locks the screw of the movable screw mechanism A2 with the screw of the movable screw mechanism B3, so that the screw of the movable screw mechanism B3 rotates to drive the sliding block of the movable screw mechanism B3 to slide upward, and then drives the square block of the movable screw mechanism B3 to move, so that the diameters of trees at different heights can be conveniently measured; the clamping block of the movable screw mechanism B3 is fixedly installed on the inner side of the lower end of the movable frame of the movable screw mechanism B3, and when the movable frame of the movable screw mechanism B3 moves the upper end of the movable screw mechanism A2, the clamping block of the movable screw mechanism B3 locks the screw of the movable screw mechanism A2 with the screw of the movable screw mechanism B3; specifically, when in use, by holding the movable screw mechanism A2 close to the tree, when it is necessary to measure the diameters of trees at different heights at their breast heights, the motor on the movable screw mechanism A2 drives the screw to rotate, and then drives the movable frame of the movable screw mechanism B3 to move, and then drives the movable screw mechanism B3 to move;

[0030] An automatic device for measuring the diameter at breast height of a tree. The device also includes: a gear transmission mechanism 7, an irregular bracket 8, a fan-shaped slide rail A9, a telescopic spring 10, a fan-shaped slide rail B11, a fan-shaped slide rail C12, a fan-shaped slide rail D13, and a rolling wheel 14;

[0031] The gear transmission mechanism 7 includes gears, belts, pulleys, and a motor; there are four gears, which are rotatably mounted on the irregular bracket 8 respectively, and the four gears are connected by belts and pulleys respectively, and the shaft of one of the gears is fixedly connected to the shaft of the motor fixedly mounted on the irregular bracket 8; specifically, when in use, the motor on the irregular bracket 8 drives the gears of the gear transmission mechanism 7 to rotate, thereby driving the fan-shaped slide rail D13 to move, and during the movement of the fan-shaped slide rail D13, it will drive the fan-shaped slide rail C12 and the fan-shaped slide rail B11 to move, thereby surrounding the trees in the center position; the irregular bracket 8 is fixedly mounted in the square shell B6; the fan-shaped slide rail A9 is fixedly mounted inside the square shell B6, and the fan-shaped slide rail B11 is slidably mounted in the slide groove of the fan-shaped slide rail A9, and the teeth on the side of the fan-shaped slide rail B11 are meshed with the gears of the gear transmission mechanism 7, and the fan-shaped slide rail B11 in the slide groove is meshed with the gears of the gear transmission mechanism 7. A fan-shaped slide rail C12 is slidably installed on the fan-shaped slide rail C12, and the teeth on the side of the fan-shaped slide rail C12 are meshed with the gears of the gear transmission mechanism 7. A slider on the lower end surface of the fan-shaped slide rail D13 is slidably installed in the slide groove of the fan-shaped slide rail C12. The side of the fan-shaped slide rail D13 is provided with gear teeth, which are meshed with the gears of the gear transmission mechanism 7. One end of the fan-shaped slide rail A9, the fan-shaped slide rail B11, and the fan-shaped slide rail C12 is provided with a baffle to prevent sliding out. Specifically, the telescopic spring 10 is driven to expand and contract by the rolling wheel 14, so that the rolling wheel 14 is close to the tree, and then the wire of the coil 15 is close to the tree for measurement; the inner side of the fan-shaped slide rail D13 is fixedly installed with a telescopic spring 10, and the telescopic rod end of the telescopic spring 10 is fixedly connected to the rolling wheel 14; specifically, when the equipment is not in use, the fan-shaped slide rail D13, the fan-shaped slide rail C12, and the fan-shaped slide rail B11 will be folded together with the fan-shaped slide rail A9 to reduce the floor space.

[0032] An automatic device for measuring the diameter at breast height of a tree also includes: a coil 15, a coil spring 16, a large ratchet wheel 17, a cylindrical gear A18, a cylindrical gear B19, a cylindrical gear C20, a spur rack 21, a cylindrical gear D22, and a special-shaped support frame 32;

[0033] The coil 15 is rotatably mounted on the special-shaped support frame 32, the wire of the coil 15 is connected to the axis of the rolling wheel 14, the axis of the coil 15 is fixedly connected to the axis of the coil spring 16, one end of the coil spring 16 is fixedly connected to the special-shaped support frame 32, and the special-shaped support frame 32 is fixedly mounted inside the square shell B6; the large ratchet wheel 17 is rotatably mounted on the special-shaped support frame 32, the large ratchet wheel 17 and the coil 15 are connected by a belt and a pulley, the large ratchet wheel 17 has the same diameter as the coil spring 16, the large ratchet wheel 17 is meshed with the cylindrical gear A18, the large ratchet wheel 17 and the cylindrical gear A18 have the same number of teeth, the cylindrical gear A18 is rotatably mounted on the special-shaped support frame 32, the cylindrical gear A18 is meshed with the cylindrical gear B19, and the cylindrical gear A18 is meshed with the cylindrical gear B 19 has the same number of teeth. Specifically, when measuring the breast diameter of the same tree at different positions for the third time, the manual control button 1 is pressed manually to drive the motor in the square housing B6 to move, thereby driving the cylindrical gear D22 to rotate, thereby driving the spur rack 21 to move, thereby driving the telescopic rod to extend and retract, thereby driving the cylindrical gear C20 to engage with the cylindrical gear E23 at the uppermost position, and then the cylindrical gear C20 drives the uppermost cylindrical gear E23 to rotate so that the ones-digit counting disk 28 and the tens-digit counting disk 29 in the middle position measure the breast diameter of the tree for the third time; finally, the device can be taken down to intuitively see the three values ​​of the three measurements on the device, and after manual reset, it is convenient for the next measurement; the cylindrical gear B19 is rotatably installed on the special-shaped support frame 32, and the cylindrical A telescopic rod is fixedly installed on the axis of gear B19, one end of the telescopic rod is fixedly connected to the cylindrical gear C20, the telescopic rod is rotatably connected to the upper end of the spur rack 21, the spur rack 21 and the cylindrical gear D22 are meshed with each other, the cylindrical gear D22 is rotatably installed inside the square housing B6, the axis of the cylindrical gear D22 is fixedly connected to the axis of the motor fixedly installed inside the square housing B6, and the motor inside the square housing B6 is controlled by the manual control button 1; specifically, when measuring the breast diameter, the wire of the coil 15 is pulled by the rolling wheel 14 to rotate the coil 15, thereby driving the coil spring 16 to rotate, and when the measurement is completed, the coil spring 16 is rotated in the opposite direction, thereby driving the coil 15 to rotate in the opposite direction, so that the wire is wound around the coil 1 again. 5, which is convenient for next use; when the coil 15 rotates to measure the breast diameter, the large ratchet wheel 17 is driven to rotate by the rotation of the coil 15, thereby driving the cylindrical gear A18 and the cylindrical gear B19 to rotate. Since the circumference of the coil 15 is certain, the number of turns of the coil 15 multiplied by the circumference of the coil 15 is the breast diameter of the tree; when measuring the tree for the first time, the cylindrical gear B19 is meshed with the lowest cylindrical gear E23, and the cylindrical gear B19 drives the cylindrical gear E23 to rotate, so that the lowest ones-digit counting disk 28 and the tens-digit counting disk 29 measure the first breast diameter of the tree. After the measurement is completed, the electromagnetic buckle inside the lowest cylindrical gear E23 is controlled to be loosened so that the cylindrical gear B19 does not drive the lowest cylindrical gear E23 to count;When measuring the diameter at breast height of the same tree at a different position for the second time, the manual control button 1 is manually pressed to drive the motor in the square housing B6 to move, thereby driving the cylindrical gear D22 to rotate, thereby driving the spur rack 21 to move, thereby driving the telescopic rod to extend and retract, thereby driving the cylindrical gear C20 to engage with the cylindrical gear E23 at the middle position, and then the cylindrical gear C20 drives the middle cylindrical gear E23 to rotate so that the ones counter disk 28 and the tens counter disk 29 at the middle position can measure the second tree diameter at breast height. ;

[0034] like Figure 4 As shown, it also includes: a telescopic spring 10;

[0035] A spring is provided on the outside of the telescopic spring 10 , one end of the spring is connected to the rolling wheel 14 , and the other end of the spring is fixedly connected to the inside of the fan-shaped slide rail D13 .

[0036] like Figure 3 As shown, the movable screw mechanism C4 is fixedly mounted on the square block of the movable screw mechanism B3, and the movable screw mechanism C4 includes: a screw, a limit rod, a motor, and a slider; the bracket is fixedly mounted on the side of the square shell A5 and the square shell B6, the thread direction of the screw is opposite from the middle to both sides, the screw is threadedly connected to the slider, the limit rod is slidably connected to the hole on the slider, and a motor is fixedly mounted on the side panel of the limit rod, and the shaft of the motor is fixedly connected to the shaft of the screw; the square shell A5 is made of stainless steel, and stainless steel is resistant to weak corrosive media such as air, steam, and water, and has a long service life; the square shell A5 and the square shell B6 are respectively fixedly mounted on the slider of the movable screw mechanism C4; specifically, the motor on the movable screw mechanism C4 drives the screw of the movable screw mechanism C4 to rotate, and then drives the square shell A5 and the square shell B6 to move, so that the square shell A5 and the square shell B6 can clamp or release the tree, which is convenient for measuring the tree.

[0037] like Figure 7 , 8 As shown in , 9, a device for automatically measuring the diameter at breast height of a tree also includes: a cylindrical gear E23, an irregular frame 24, a movable round rod 25, an eccentric circle 26, a ratchet A27, a ones counter disk 28, a tens counter disk 29, an irregular block 30, and a ratchet B31;

[0038] There are three cylindrical gears E23, all of which are rotatably mounted on a shaft. The bottom cylindrical gear E23 is always meshed with the cylindrical gear B19. An electromagnetic buckle is installed inside the bottom cylindrical gear E23. The two upper cylindrical gears E23 are intermittently meshed with the cylindrical gear C20 respectively. The cylindrical gear E23 is rotatably mounted inside the square housing B6. The shaft of the cylindrical gear E23 is fixedly connected to the shaft of the eccentric circle 26. The eccentric circle 26 is rotatably mounted on the irregular frame 2. 4, the irregular frame 24 is fixedly installed inside the square housing B6, and the eccentric circle 26 contacts the moving rod 25; the moving rod 25 is slidably installed in the hole of the irregular frame 24, one end of the moving rod 25 is fixedly connected to the spring, and the other end of the spring is fixedly connected to the irregular frame 24, and a rod is provided on the side of the moving rod 25, and the rod is fixedly connected to the pawl A27; the pawl A27 is rotatably installed on the irregular frame 24, and the pawl A27 cooperates with the inner ratchet of the units counter disk 28. The outer side of the ones counter disk 28 is provided with numbers; the tens counter disk 29 is rotatably mounted on the irregular frame 24, and an inner ratchet is arranged inside the tens counter disk 29; the irregular clamping block 30 is fixedly mounted on the side of the irregular frame 24, and the protrusion of the irregular clamping block 30 pushes the ratchet B31 to swing; the ratchet B31 is rotatably mounted on the side of the ones counter disk 28, and the ratchet B31 indirectly cooperates with the teeth of the tens counter disk 29; specifically, the cylindrical gear E23 rotates one circle, thereby driving the eccentric circle 26 to rotate One circle, so that the eccentric circle 26 drives the moving round rod 25 to extend and retract, and then drives the pawl A27 to swing, so that the ones-digit counting disk 28 rotates one grid. After the ones-digit counting disk 28 rotates one circle, the pawl B31 contacts the raised block of the irregular block 30, so that the pawl B31 swings, and then drives the tens-digit counting disk 29 to rotate. According to the numbers on the ones-digit counting disk 28 and the tens-digit counting disk 29, the number of circles of rotation of the coil 15 can be seen, and the tree's diameter at breast height can be calculated.

[0039] The square housing A5 is made of stainless steel, which is resistant to weak corrosive media such as air, steam, and water and has a long service life.

[0040] Working principle:

[0041] When in use, the mobile screw mechanism A2 is held close to the tree. When the diameters at breast height of trees at different heights need to be measured, the motor on the mobile screw mechanism A2 drives the screw to rotate, thereby driving the moving frame of the mobile screw mechanism B3 to move, and then driving the moving screw mechanism B3 to move. When the moving frame of the mobile screw mechanism B3 moves the upper end of the mobile screw mechanism A2, the moving frame of the mobile screw mechanism B3 cannot continue to move because the top of the screw of the mobile screw mechanism A2 is not provided with a thread. At this time, the clamping block of the mobile screw mechanism B3 locks the screw of the mobile screw mechanism A2 with the screw of the mobile screw mechanism B3, so that the rotation of the screw of the mobile screw mechanism B3 drives the sliding block of the mobile screw mechanism B3 to slide upward, thereby driving the square block of the mobile screw mechanism B3 to move, so that the diameters at breast height of trees at different heights can be measured conveniently.

[0042] The motor on the movable screw mechanism C4 drives the screw of the movable screw mechanism C4 to rotate, thereby driving the square housing A5 and the square housing B6 to move, so that the square housing A5 and the square housing B6 can clamp the tree or release the tree, which is convenient for measuring the tree;

[0043] When the equipment is not in use, the fan-shaped slide rail D13, the fan-shaped slide rail C12, and the fan-shaped slide rail B11 will be folded together with the fan-shaped slide rail A9 to reduce the floor space.

[0044] When in use, the motor on the irregular bracket 8 drives the gear of the gear transmission mechanism 7 to rotate, thereby driving the fan-shaped slide rail D13 to move. During the movement of the fan-shaped slide rail D13, the fan-shaped slide rail C12 and the fan-shaped slide rail B11 are driven to move, thereby surrounding the tree at the center position; at the same time, the rolling wheel 14 drives the telescopic spring 10 to extend and retract, thereby making the rolling wheel 14 fit the tree, and then making the wire of the coil 15 fit the tree for measurement;

[0045] When measuring the diameter at breast height, the wire of the coil 15 is pulled by the rolling wheel 14 to rotate the coil 15, thereby driving the coil spring 16 to rotate. When the measurement is completed, the coil spring 16 rotates in the opposite direction, thereby driving the coil 15 to rotate in the opposite direction, so that the wire is wound around the coil 15 again, which is convenient for next use.

[0046] The cylindrical gear E23 rotates one circle, thereby driving the eccentric circle 26 to rotate one circle, so that the eccentric circle 26 drives the moving rod 25 to extend and retract, thereby driving the ratchet A27 to swing, thereby driving the ones-digit counting disk 28 to rotate one grid. After the ones-digit counting disk 28 rotates one circle, the ratchet B31 contacts the raised block of the irregular block 30, thereby causing the ratchet B31 to swing, thereby driving the tens-digit counting disk 29 to rotate. According to the numbers on the ones-digit counting disk 28 and the tens-digit counting disk 29, the number of revolutions of the coil 15 can be seen, and the tree diameter at breast height can be calculated;

[0047] When the coil 15 rotates to measure the breast diameter, the large ratchet wheel 17 is driven to rotate by the rotation of the coil 15, thereby driving the cylindrical gear A18 and the cylindrical gear B19 to rotate. Since the circumference of the coil 15 is fixed, the number of turns of the coil 15 multiplied by the circumference of the coil 15 is the breast diameter of the tree; when measuring the tree for the first time, the cylindrical gear B19 is meshed with the lowest cylindrical gear E23, and the cylindrical gear B19 drives the cylindrical gear E23 to rotate, so that the lowest ones-digit counting disk 28 and the tens-digit counting disk 29 measure the first breast diameter of the tree. After the measurement is completed, the electromagnetic buckle inside the lowest cylindrical gear E23 is controlled to be released so that the cylindrical gear B19 does not drive the lowest cylindrical gear E23 to count; when measuring the breast diameter of the same tree at a different position for the second time, the manual control button 1 is manually pressed to drive the motor in the square housing B6 to move, thereby driving the cylindrical gear D22 to rotate, thereby driving the straight The rack 21 moves, thereby driving the telescopic rod to extend and retract, thereby driving the cylindrical gear C20 to mesh with the cylindrical gear E23 in the middle position, and then the cylindrical gear C20 drives the middle cylindrical gear E23 to rotate so that the ones counting disk 28 and the tens counting disk 29 in the middle position measure the tree's diameter at breast height for the second time; when measuring the diameter at breast height of the same tree at a different position for the third time, the manual control button 1 is manually pressed to drive the motor in the square housing B6 to move, thereby driving the cylindrical gear D22 to rotate, thereby driving the spur rack 21 to move, thereby driving the telescopic rod to extend and retract, thereby driving the cylindrical gear C20 to mesh with the cylindrical gear E23 at the uppermost position, and then the cylindrical gear C20 drives the uppermost cylindrical gear E23 to rotate so that the ones counting disk 28 and the tens counting disk 29 in the middle position measure the tree's diameter at breast height for the third time; finally, the device is taken down, and the three values ​​of the three measurements can be intuitively seen on the device, and after manual reset, it is convenient for the next measurement.

Claims

1. A device for automatically measuring the diameter at breast height of a tree, characterized in that: include: A manual control button (1), a moving screw mechanism A (2), a moving screw mechanism B (3), a moving screw mechanism C (4), a square housing A (5), and a square housing B (6); the manual control button (1) is mounted on the side of the moving screw mechanism A (2); the moving screw mechanism A (2) needs to be manually held, and the moving screw mechanism A (2) includes: a screw, a motor, and a limit groove; the motor is fixedly mounted on the lower end surface of the limit groove, the shaft of the motor is fixedly connected to the shaft of the screw, the screw is rotatably mounted in the limit groove, and the upper end of the screw of the moving screw mechanism A (2) is not provided with a thread; the moving screw mechanism B (3) is mounted inside the moving screw mechanism A (2), and the moving screw mechanism B (3) includes: a screw, a sliding block, a moving The screw of the moving screw mechanism B (3) is rotatably mounted inside the screw of the moving screw mechanism A (2); a threaded hole is provided on the moving frame of the moving screw mechanism B (3); the threaded hole matches with the screw thread of the moving screw mechanism A (2); a sliding block of the moving screw mechanism B (3) matches with the screw thread of the moving screw mechanism B (3); a square block is fixedly mounted on the upper end of the sliding block; the clamping block of the moving screw mechanism B (3) is fixedly mounted on the inner side of the lower end of the moving frame of the moving screw mechanism B (3); when the moving frame of the moving screw mechanism B (3) moves the upper end of the moving screw mechanism A (2), the clamping block of the moving screw mechanism B (3) locks the screw of the moving screw mechanism A (2) and the screw of the moving screw mechanism B (3); It also includes: a gear transmission mechanism (7), an irregular bracket (8), a fan-shaped slide rail A (9), a telescopic spring (10), a fan-shaped slide rail B (11), a fan-shaped slide rail C (12), a fan-shaped slide rail D (13), and a rolling wheel (14); the gear transmission mechanism (7) includes gears, belts, pulleys, and a motor; there are four gears, which are rotatably mounted on the irregular bracket (8) respectively, and the four gears are connected by belts and pulleys respectively, and the shaft of one of the gears is fixedly connected to the shaft of the motor fixedly mounted on the irregular bracket (8); the irregular bracket (8) is fixedly mounted in a square housing B (6); the fan-shaped slide rail A (9) is fixedly mounted inside the square housing B (6), and the fan-shaped slide rail B (11) is slidably mounted in the slide groove of the fan-shaped slide rail A (9) The teeth on the side of the fan-shaped slide rail B (11) mesh with the gears of the gear transmission mechanism (7), a fan-shaped slide rail C (12) is slidably installed inside the slide groove of the fan-shaped slide rail B (11), the teeth on the side of the fan-shaped slide rail C (12) mesh with the gears of the gear transmission mechanism (7), a slider on the lower end surface of the fan-shaped slide rail D (13) is slidably installed in the slide groove of the fan-shaped slide rail C (12), the side of the fan-shaped slide rail D (13) is provided with gear teeth, the gear teeth mesh with the gears of the gear transmission mechanism (7), and a baffle is provided at one end of the fan-shaped slide rail A (9), the fan-shaped slide rail B (11), and the fan-shaped slide rail C (12) to prevent sliding out; a telescopic spring (10) is fixedly installed on the inner side of the fan-shaped slide rail D (13), and the telescopic rod end of the telescopic spring (10) is fixedly connected to the rolling wheel (14); The invention also comprises: a coil (15), a coil spring (16), a large ratchet wheel (17), a cylindrical gear A (18), a cylindrical gear B (19), a cylindrical gear C (20), a spur rack (21), a cylindrical gear D (22), and a special-shaped support frame (32); the coil (15) is rotatably mounted on the special-shaped support frame (32), the wire of the coil (15) is connected to the shaft of the rolling wheel (14), and the shaft of the coil (15) is fixed to the shaft of the coil spring (16). The coil spring (16) is fixedly connected with one end thereof and is fixedly connected with the special-shaped support frame (32). The special-shaped support frame (32) is fixedly installed inside the square housing B (6); the large ratchet wheel (17) is rotatably installed on the special-shaped support frame (32). The large ratchet wheel (17) and the coil (15) are connected through a belt and a pulley. The large ratchet wheel (17) and the coil spring (16) have the same diameter. The large ratchet wheel (17) and the cylindrical gear A (18) are meshed with each other. The ratchet wheel (17) and the cylindrical gear A (18) have the same number of teeth. The cylindrical gear A (18) is rotatably mounted on the special-shaped support frame (32). The cylindrical gear A (18) and the cylindrical gear B (19) are meshed with each other. The cylindrical gear A (18) and the cylindrical gear B (19) have the same number of teeth. The cylindrical gear B (19) is rotatably mounted on the special-shaped support frame (32). A telescopic rod is fixedly mounted on the shaft of the cylindrical gear B (19). One end of the telescopic rod is fixedly connected to the cylindrical gear C (20). The telescopic rod is rotatably connected to the upper end of the spur rack (21). The spur rack (21) and the cylindrical gear D (22) are meshed with each other. The cylindrical gear D (22) is rotatably mounted inside the square housing B (6). The shaft of the cylindrical gear D (22) is fixedly connected to the shaft of a motor fixedly mounted inside the square housing B (6). The motor inside the square housing B (6) is controlled by a manual control button (1). The invention also comprises: a cylindrical gear E (23), an irregular frame (24), a movable rod (25), an eccentric circle (26), a ratchet A (27), a units counter disk (28), a tens counter disk (29), an irregular block (30), and a ratchet B (31); the cylindrical gears E (23) are three, and the three cylindrical gears E (23) are all rotatably mounted on a shaft, the bottom cylindrical gear E (23) is always meshed with the cylindrical gear B (19), an electromagnetic buckle is installed in the bottom cylindrical gear E (23), and the two upper cylindrical gears E (23) are respectively intermittently meshed with the cylindrical gear C (20), the cylindrical gear E (23) is rotatably mounted inside the square housing B (6), and the shaft of the cylindrical gear E (23) is fixedly connected to the shaft of the eccentric circle (26); the eccentric circle (26) is rotatably mounted in the hole of the irregular frame (24), and the irregular frame (24) is fixedly mounted on the square housing. B (6), the eccentric circle (26) contacts the moving rod (25); the moving rod (25) is slidably mounted in the hole of the irregular frame (24); one end of the moving rod (25) is fixedly connected to a spring; the other end of the spring is fixedly connected to the irregular frame (24); a rod is provided on the side of the moving rod (25), and the rod is fixedly connected to a pawl A (27); the pawl A (27) is rotatably mounted on the irregular frame (24), and the pawl A (27) The inner ratchet wheel cooperates with the inner ratchet wheel of the ones-digit counting disk (28), and the outer side of the ones-digit counting disk (28) is provided with numbers; the tens-digit counting disk (29) is rotatably mounted on the irregular frame (24), and the inner ratchet wheel is arranged inside the tens-digit counting disk (29); the irregular clamping block (30) is fixedly mounted on the side of the irregular frame (24); the ratchet pawl B (31) is rotatably mounted on the side of the ones-digit counting disk (28), and the ratchet pawl B (31) indirectly cooperates with the teeth of the tens-digit counting disk (29).

2. The device for automatically measuring the diameter at breast height of a tree according to claim 1, characterized in that: A spring is arranged on the outer side of the telescopic spring (10), one end of the spring is connected to the rolling wheel (14), and the other end of the spring is fixedly connected to the inside of the fan-shaped slide rail D (13).

3. The device for automatically measuring the diameter at breast height of a tree according to claim 1, characterized in that: The movable screw mechanism C (4) is fixedly mounted on the square block of the movable screw mechanism B (3), and the movable screw mechanism C (4) includes: a screw, a limit rod, a motor, and a slider; the bracket is fixedly mounted on the side of the square shell A (5) and the square shell B (6), the screw thread direction from the middle to both sides is opposite, the screw is threadedly connected to the slider, the limit rod is slidably connected to the hole on the slider, the motor is fixedly mounted on the side panel of the limit rod, and the shaft of the motor is fixedly connected to the shaft of the screw; the square shell A (5) and the square shell B (6) are respectively fixedly mounted on the slider of the movable screw mechanism C (4).

4. The device for automatically measuring the diameter at breast height of a tree according to claim 1, characterized in that: The square housing A (5) is made of stainless steel.

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