Tree circumference measuring device for malus asiatica trees

Abstract

The utility model discloses a malus asiatica tree circumference measuring device which comprises a fixing rod, a limit switch arranged on one side of the fixing rod, a dial plate arranged on the front face of the fixing rod, a telescopic assembly arranged at the top end of the fixing rod, a fixing semi-ring arranged at the top end of the fixing rod through the telescopic assembly, and a rotating shaft arranged at the top end of the fixing semi-ring. The top end of the fixed semi-ring is connected with a movable semi-ring through a rotating shaft, an electromagnetic coil is fixedly installed on one side of the top end of the telescopic assembly, a second metal head is arranged on the top of the electromagnetic coil, and a first metal head is arranged at the end of the movable semi-ring. The thin metal wire is guided by the fixed semi-ring and the movable semi-ring, so that the movable semi-ring and the fixed semi-ring can be remotely sleeved on the trunk, the movable semi-ring is fixed by the electromagnetic coil, the circumference of the trunk is measured through the thin metal wire and the dial plate, and people do not need to be close to the trunk for measurement. The practicability is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring red fruit trees, in particular to a device for measuring the circumference of red fruit trees. Background Art

[0002] The huahong fruit tree is a small deciduous tree in the Rosaceae family and the genus Malus. It typically stands 3-4 meters tall, with an umbrella-shaped trunk. When not bearing fruit, its lower branches typically stand 0.8-1 meter above the ground. Its leaves are ovate or elliptical, and its spherical fruit grows in clusters. It is a common fruit. Huahong is highly adaptable, growing well on sunny slopes and sandy plains at altitudes ranging from 50 to 2,800 meters. It is cultivated in many locations across my country, with Lai'an Huahong receiving a National Geographical Indication designation.

[0003] Girth measurement of guava trees is a method of estimating tree age and monitoring tree growth health by measuring the circumference of the trunk.

[0004] The traditional method of measurement is to use a tape measure to wrap around the trunk at a certain height to take readings.

[0005] However, the trunk of the red-flowered fruit tree is low, and measurement usually requires the surveyor to squat and crawl under the tree to measure. Especially during the peak fruiting period, the side branches are bent and drooped by the fruit, making measurement difficult. Therefore, it is urgent to design a tree circumference measurement device for red-flowered fruit trees to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a device for measuring the circumference of a red fruit tree to solve the above-mentioned deficiencies in the prior art.

[0007] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0008] A device for measuring the circumference of a red fruit tree comprises a fixed rod, a limit switch is provided on one side of the fixed rod, a dial is provided on the front side of the fixed rod, a telescopic assembly is provided at the top of the fixed rod, and a fixed half-ring is provided at the top of the fixed rod through the telescopic assembly, a rotating shaft is provided at the top of the fixed half-ring, and the top of the fixed half-ring is connected to a movable half-ring through the rotating shaft, an electromagnetic coil is fixedly installed on one side of the top of the telescopic assembly, a second metal head is provided on the top of the electromagnetic coil, a first metal head is provided at the end of the movable half-ring, a fine metal wire is provided inside the telescopic assembly, one end of the fine metal wire is bolted to the core shaft of the dial, and the other end of the fine metal wire is distributed on the inner sides of the fixed half-ring and the movable half-ring.

[0009] Preferably, a battery box is provided at the end of the fixing rod, and a handle is provided at the bottom of the battery box.

[0010] Preferably, the telescopic assembly includes a sleeve arranged at the top of the fixed rod, and the telescopic rod is inserted into the sleeve, the top of the telescopic rod is externally sleeved with a hollow rod through the sleeve, and the top of the hollow rod is fixedly connected to the fixed half ring.

[0011] Preferably, a plurality of flexible hooks are provided on the inner walls of the fixed half ring and the movable half ring, and the thin metal wire is hung on the flexible hooks.

[0012] Preferably, a tying head is fixedly provided on the end side wall of the movable half ring, and one end of the thin metal wire is bolted to the tying head.

[0013] Preferably, the limit switch includes a guide sleeve fixed on the outer wall of one side of the fixed rod, and a core rod is slidably inserted inside the guide sleeve, a rotatable locking rod is provided on one side of the guide sleeve, a spring is provided inside the guide sleeve, a baffle is welded on the outer wall of one end of the core rod, one end of the spring is fixed on the outer wall of one side of the baffle, a pressure head is welded on the outer wall of one side of the baffle, and a slot matching the pressure head is provided on the inner wall of one side of the fixed rod.

[0014] In the above technical solution, the utility model provides a device for measuring the circumference of a red fruit tree, which has the following beneficial effects:

[0015] (1) The thin metal wire used is guided by the fixed half ring and the movable half ring, so that the movable half ring and the fixed half ring can be remotely connected to the tree trunk. The movable half ring is fixed by the electromagnetic coil. The circumference of the tree trunk can be measured by the thin metal wire and the dial. It is more practical without the need for people to measure close to the tree trunk.

[0016] (2) The telescopic component used can facilitate people to hold the device and can adjust the overall length, which is suitable for measuring tree trunks in different environments. Since the branches of the red fruit tree are of different lengths and the range of their scattering is also different, the telescopic component can be used to adjust the length of the entire device to meet the needs of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 This is a structural stereogram provided for an embodiment of a device for measuring the circumference of a red fruit tree according to the utility model.

[0019] Figure 2This is a schematic diagram of the fixed half-ring and movable half-ring structures provided in an embodiment of a device for measuring the circumference of a red fruit tree of the utility model.

[0020] Figure 3 The present invention provides a structural front view of an embodiment of a device for measuring the circumference of a red fruit tree.

[0021] Figure 4 The present invention provides a partially enlarged structural schematic diagram of an embodiment of a device for measuring the circumference of a red fruit tree.

[0022] 1 fixed rod, 2 limit switch, 3 dial, 4 battery box, 5 handle, 6 harness, 7 telescopic rod, 8 hollow rod, 9 fixed half ring, 10 movable half ring, 11 rotating shaft, 12 flexible hook, 13 electromagnetic coil, 14 metal head 1, 15 metal head 2, 16 bolt head, 17 thin metal wire, 18 slot, 19 guide sleeve, 20 core rod, 21 locking rod, 22 spring, 23 baffle, 24 pressure head. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0024] like Figure 1-4 As shown, an embodiment of the utility model provides a device for measuring the circumference of a red fruit tree, comprising a fixed rod 1, a limit switch 2 being provided on one side of the fixed rod 1, and a dial 3 being provided on the front of the fixed rod 1, a telescopic assembly being provided on the top of the fixed rod 1, and a fixed half-ring 9 being provided on the top of the fixed rod 1 through the telescopic assembly, a rotating shaft 11 being provided on the top of the fixed half-ring 9, and a movable half-ring 10 being connected to the top of the fixed half-ring 9 through the rotating shaft 11, an electromagnetic coil 13 being fixedly installed on one side of the top of the telescopic assembly, and a metal head 2 15 being provided on the top of the electromagnetic coil 13, a metal head 14 being provided on the end of the movable half-ring 10, a fine metal wire 17 being provided inside the telescopic assembly, one end of the fine metal wire 17 being bolted to the core shaft of the dial 3, and the other end of the fine metal wire 17 being distributed on the inner sides of the fixed half-ring 9 and the movable half-ring 10.

[0025] Specifically, in this embodiment, a fixed rod 1 is provided, a limit switch 2 is provided on one side of the fixed rod 1, and the limit switch 2 can be used to limit the fine metal wire 17, and a dial 3 is provided on the front of the fixed rod 1, and the dial 3 has a pointer and a reading, a spring and a coil inside, and the pointer reading can be manually calibrated. By pulling the fine metal wire 17, the spring on the dial can be driven to move, so that the reading is displayed by the pointer, and a telescopic component is provided at the top of the fixed rod 1, and a fixed half ring 9 is provided at the top of the fixed rod 1 through the telescopic component, and a rotating shaft 11 is provided at the top of the fixed half ring 9, and the top of the fixed half ring 9 is connected to a movable half ring 10 through the rotating shaft 11, and the movable half ring 10 can be moved by the rotating shaft 11 The movable half ring 10 is opened and closed by rotating on the fixed half ring 9. An electromagnetic coil 13 is fixedly installed on one side of the top of the telescopic component, and a metal head 2 15 is provided on the top of the electromagnetic coil 13. A metal head 14 is provided on the end of the movable half ring 10. Through the electromagnetic coil 13, due to the electromagnetic effect, the electromagnetic coil 13 generates an electromagnetic field, and the metal head 2 15 becomes a strong magnet. The metal head 14 is adsorbed by the metal head 2 15, so that the movable half ring 10 can be fixed. A fine metal wire 17 is provided inside the telescopic component. One end of the fine metal wire 17 is bolted to the core shaft of the dial 3, and the other end of the fine metal wire 17 is distributed on the inner side of the fixed half ring 9 and the movable half ring 10.

[0026] The utility model provides a device for measuring the circumference of a red fruit tree. A thin metal wire 17 is used, which is guided by a fixed half ring 9 and a movable half ring 10, so that the movable half ring 10 and the fixed half ring 9 can be remotely sleeved on the tree trunk. The movable half ring 10 is fixed by an electromagnetic coil 13. The circumference of the tree trunk is measured by the thin metal wire 17 and the dial 3. It is more practical without the need for people to measure close to the tree trunk.

[0027] As an embodiment provided by the present invention, a battery box 4 is provided at the end of the fixing rod 1, and a handle 5 is provided at the bottom of the battery box 4. The device is powered by the battery box 4. Lithium batteries are stored inside the battery box 4. People can hold the handle 5 when in use, which facilitates the use of the device.

[0028] As another embodiment provided by the present invention, the telescopic assembly includes a sleeve 6 arranged at the top of the fixed rod 1, and a telescopic rod 7 is inserted into the interior of the sleeve 6, and a hollow rod 8 is sleeved on the outside of the top of the telescopic rod 7 through the sleeve 6, and the top of the hollow rod 8 is fixedly connected to the fixed half ring 9, and the sleeve 6 is limited. The sleeve 6 can be manually twisted to allow the telescopic rod 7 to slide inside the fixed rod 1 and the hollow rod 8, thereby realizing the adjustment of the length of the telescopic assembly to meet the use in different situations.

[0029] In another embodiment provided by the present invention, a plurality of flexible hooks 12 are provided on the inner walls of the fixed half ring 9 and the movable half ring 10, and a thin metal wire 17 is hung on the flexible hooks 12. The flexible hooks 12 can be used to temporarily fix the thin metal wire 17. When the thin metal wire 17 is wound, the thin metal wire can be quickly detached from the flexible hooks 12, thereby tightening the thin metal wire on the tree trunk.

[0030] As an embodiment provided by the present invention, a tie-wire head 16 is fixedly provided on the end side wall of the movable half ring 10, and one end of the thin metal wire 17 is bolted to the tie-wire head 16. After people pull apart the thin metal wire 17, one end of the thin metal wire 17 can be bolted to the tie-wire head 16, which facilitates faster fixation of the thin metal wire 17.

[0031] As another embodiment provided by the present invention, the limit switch 2 includes a guide sleeve 19 fixed on the outer wall of one side of the fixed rod 1, and a core rod 20 is slidably inserted inside the guide sleeve 19, and a rotatable locking rod 21 is provided on one side of the guide sleeve 19. The locking rod 21 can limit the movement of the core rod 20 inside the guide sleeve 19, and a spring 22 is provided inside the guide sleeve 19. A baffle 23 is welded on the outer wall of one end of the core rod 20, and one end of the spring 22 is fixed on the outer wall of one side of the baffle 23. A pressure head 24 is welded on the outer wall of one side of the baffle 23, and a card slot 18 matching the pressure head 24 is provided on the inner wall of one side of the fixed rod 1. The pressure head 24 is clamped in the inside of the card slot 18 to achieve locking and limiting of the fine metal wire 17.

[0032] The steps for using the device are as follows: before use, stretch the thin metal wire 17 outward for a distance so that the thin metal wire 17 is fixed along the flexible hooks 12 on the fixed half ring 9 and the movable half ring 10 for one circle. At this time, the dial 3 will have a reading, which is the length of the pulled-out thin metal wire 17. Since the limit switch 2 is a normally closed structure, the thin metal wire 17 will not automatically retract at this time.

[0033] The technician holds the handle 5 and turns on the switch on one side of the battery box 4. At this time, due to the electromagnetic effect, the electromagnetic coil 13 generates an electromagnetic field and the metal head 15 becomes a strong magnet.

[0034] Place the tree trunk in the open fixed half ring 9 and movable half ring 10, pull back the fixed rod 1 and the telescopic assembly, and the top of the trunk touches the extended section of the movable half ring 10 to close the fixed half ring 9 and the movable half ring 10. At this time, the metal head 2 15 has magnetism and firmly attracts the metal head 1 14.

[0035] Pull the core rod 20 of the limit switch 2 to pull the pressure head 24 out of the slot 18 and allow the locking rod 21 to be inserted into the core rod 20, thereby releasing the limit switch 2. Due to the spring-like mechanism in the dial 3, the thin metal wire 17 automatically tightens and contracts, and detaches from the flexible hooks 12 on the fixed half ring 9 and the movable half ring 10. The thin metal wire 17 wraps around the tree trunk. At this time, the reading on the dial 3 is the circumference of the tree trunk (tree circumference). The reading is taken and the measurement is completed.

[0036] When the switch on one side of the battery box 4 is turned off, the magnetism of the electromagnetic coil 13 disappears, and the metal head 2 15 and the metal head 1 14 automatically separate and fall off. At this time, due to the pulling force of the thin metal wire 17, the movable half ring 10 automatically opens and the device can be retracted.

[0037] The fixed rod 1 and the telescopic assembly can be appropriately extended and retracted to adapt to different working scenarios. At this time, the thin metal wire 17 is appropriately stretched and the reading of the dial 3 can be manually adjusted, corrected and reset.

[0038] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A device for measuring the circumference of a red fruit tree, comprising a fixing rod (1), characterized in that: A limit switch (2) is provided on one side of the fixed rod (1), and a dial (3) is provided on the front of the fixed rod (1). A telescopic assembly is provided on the top of the fixed rod (1), and a fixed half ring (9) is provided on the top of the fixed rod (1) through the telescopic assembly. A rotating shaft (11) is provided on the top of the fixed half ring (9), and the top of the fixed half ring (9) is connected to a movable half ring (10) through the rotating shaft (11). An electromagnetic coil (13) is fixedly installed on one side of the top of the telescopic assembly, and a metal head 2 (15) is provided on the top of the electromagnetic coil (13). A metal head 1 (14) is provided at the end of the movable half ring (10). A thin metal wire (17) is provided inside the telescopic assembly, one end of the thin metal wire (17) is bolted to the core shaft of the dial (3), and the other end of the thin metal wire (17) is distributed on the inner sides of the fixed half ring (9) and the movable half ring (10).

2. A device for measuring the circumference of a red fruit tree according to claim 1, characterized in that: A battery box (4) is provided at the end of the fixing rod (1), and a handle (5) is provided at the bottom of the battery box (4).

3. The device for measuring the circumference of a red fruit tree according to claim 1, characterized in that: The telescopic assembly comprises a sleeve (6) arranged at the top end of the fixed rod (1), and a telescopic rod (7) is inserted into the interior of the sleeve (6), a hollow rod (8) is sleeved on the outside of the top end of the telescopic rod (7) through the sleeve (6), and the top end of the hollow rod (8) is fixedly connected to the fixed half ring (9).

4. The device for measuring the circumference of a red fruit tree according to claim 1, characterized in that: A plurality of flexible hooks (12) are provided on the inner walls of the fixed half ring (9) and the movable half ring (10), and the thin metal wire (17) is hung on the flexible hooks (12).

5. The device for measuring the circumference of a red fruit tree according to claim 1, characterized in that: A tying head (16) is fixedly provided on the end side wall of the movable half ring (10), and one end of a thin metal wire (17) is bolted to the tying head (16).

6. The device for measuring the circumference of a red fruit tree according to claim 1, characterized in that: The limit switch (2) includes a guide sleeve (19) fixed on the outer wall of one side of the fixed rod (1), and a core rod (20) is slidably inserted into the guide sleeve (19), a rotatable locking rod (21) is provided on one side of the guide sleeve (19), a spring (22) is provided inside the guide sleeve (19), a baffle (23) is welded on the outer wall of one end of the core rod (20), one end of the spring (22) is fixed on the outer wall of one side of the baffle (23), a pressure head (24) is welded on the outer wall of one side of the baffle (23), and a slot (18) matching the pressure head (24) is provided on the inner wall of one side of the fixed rod (1).

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