Tree barrier height limiting device

Abstract

The invention discloses a tree barrier height limiting device which comprises a hoop assembly, a tightening assembly, a first steel wire rope and a second steel wire rope. The hoop assembly comprises a first hoop and a second hoop. The first hoop is fixed on a tree trunk; the second hoop is fixed on a branch of the trunk; the tightening assembly comprises a tightening support and a tightening shaft. The tightening bracket is detachably arranged on the first hoop; the tightening shaft is rotatably arranged on the tightening bracket; one end of the first steel wire rope is detachably wound on the tightening shaft, and the other end is fixedly connected with the second hoop; the first steel wire rope is wound on the tightening shaft along with the rotation of the tightening shaft; one end of the second wire rope is fixedly connected with the first hoop; the second steel wire rope is connected with the first steel wire rope after the branch is pulled to a preset position. According to the tree barrier height limiting device, the branches and the trunk can be connected through the first steel wire rope and the second steel wire rope, so that external force is applied to the branches to enable the branches to grow transversely, and discharging tripping of an overhead transmission line caused by too fast growth of the trees is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of overhead line operation and maintenance, and in particular to a tree barrier height limiting device. Background Art

[0002] Overhead transmission lines refer to power lines that use poles, tower foundations, guy wires, insulators, conductor fittings and other supporting, fixing and connecting structures to erect conductors above the ground. In actual applications, the terrain involved in laying overhead transmission lines is relatively wide, such as urban highway areas, suburban areas, along railways, etc., and sometimes they need to cross rivers and valleys. Among them, when overhead transmission lines are assumed to be in areas with rich tree resources, the growth of trees may affect the safe operation of the lines. When trees grow within the safe distance of overhead transmission lines, flashover discharge will occur, causing the overhead transmission lines to trip and disrupting the safe and stable operation of the power system.

[0003] The growth of trees can often change its original appearance through the guidance of external forces; in order to reduce the impact of trees on overhead lines, workers often control their shape and growth direction by pruning branches, specifically through large-scale pruning and selecting suitable branches to retain, or using supports such as wooden sticks to help trunks or branches maintain an upright or curved shape.

[0004] Among these, the method of pruning trees requires regular pruning, which requires a lot of manpower and has high economic costs, increasing the operation and maintenance pressure and economic costs of power supply companies; and the method of supporting branches with supports is not suitable for trees with larger diameters. Summary of the invention

[0005] In view of this, the purpose of this application is to provide a tree barrier height limiting device and a method of using the same, so as to solve the above problems.

[0006] In order to achieve the above technical purpose, the present application provides a tree obstacle height limiting device, including: a clamp assembly, a tightening assembly, a first steel wire rope and a second steel wire rope;

[0007] The clamp assembly comprises: a first clamp and a second clamp;

[0008] The first hoop is used to be fixed on the tree trunk;

[0009] The second hoop is used to be fixed on the branches of the tree trunk;

[0010] The tightening assembly comprises: a tightening bracket and a tightening shaft;

[0011] The tightening bracket is detachably arranged on the first clamping hoop;

[0012] The tightening shaft is rotatably arranged on the tightening bracket;

[0013] One end of the first steel wire rope is detachably wound on the tightening shaft, and the other end is fixedly connected to the second clamping hoop;

[0014] The first steel wire rope is used to follow the rotation of the tightening shaft and be wound around the tightening shaft to pull the branch to move to a preset position;

[0015] One end of the second steel wire rope is fixedly connected to the first hoop;

[0016] The second steel wire rope is used to connect the first steel wire rope after the branch is pulled to the preset position;

[0017] The first steel wire rope is also used to be disconnected from the tightening shaft after being connected to the second steel wire rope, so that the first steel wire rope moves to be in the same straight line as the second steel wire rope.

[0018] Furthermore, a fixing ring is provided on the first clamp;

[0019] One end of the second steel wire rope is fixedly connected to the fixing ring.

[0020] Furthermore, the tightening bracket and the fixing ring are arranged on the same side of the first clamp.

[0021] Furthermore, the tightening assembly further comprises: a ratchet and a pawl;

[0022] The ratchet is fixed on the tightening shaft;

[0023] The pawl is movably arranged on the tightening bracket;

[0024] The pawl abuts against the ratchet wheel in a natural state, and is used to limit the rotation of the take-up shaft in the direction of releasing the first steel wire rope.

[0025] Furthermore, the tightening assembly further comprises: a handle;

[0026] One end of the tightening shaft extends out of the tightening bracket and is connected to a connecting plate;

[0027] The handle is detachably connected to the connecting plate.

[0028] Furthermore, the first clamp includes two;

[0029] The two first hoops are arranged on both sides of the tree trunk along a first direction in the horizontal direction;

[0030] The two first hoops are connected by bolts.

[0031] Furthermore, the first clamp is retractable along a second direction in the horizontal direction;

[0032] The second direction is perpendicular to the first direction.

[0033] Furthermore, the bolt passes through the two first hoops;

[0034] Both sides of the bolt are connected with nuts;

[0035] An elastic pad is arranged between the nut and the first hoop.

[0036] Furthermore, the clamp assembly further comprises: a protection pad;

[0037] The protective pad abuts against the tree trunk;

[0038] The two first hoops are sleeved on the outer circumference of the protection pad.

[0039] Furthermore, the clamp assembly further includes: a second protection pad;

[0040] The second protection pad abuts against the branch;

[0041] The second clamp is sleeved on the outer circumference of the second protection pad.

[0042] It can be seen from the above technical solutions that the present application provides a tree obstacle height limiting device, comprising: a hoop assembly, a tightening assembly, a first steel wire rope and a second steel wire rope; the hoop assembly comprises: a first hoop and a second hoop; the first hoop is used to be fixed on a tree trunk; the second hoop is used to be fixed on a branch of the tree trunk; the tightening assembly comprises: a tightening bracket and a tightening shaft; the tightening bracket is detachably arranged on the first hoop; the tightening shaft is rotatably arranged on the tightening bracket; one end of the first steel wire rope is detachably wound on the tightening shaft, and the other end is fixedly connected to the second hoop; the first steel wire rope is used to be wound on the tightening shaft following the rotation of the tightening shaft to pull the branch to move to a preset position; one end of the second steel wire rope is fixedly connected to the first hoop; the second steel wire rope is used to connect the first steel wire rope after the branch is pulled to the preset position; the first steel wire rope is also used to be disconnected from the tightening shaft after being connected with the second steel wire rope, so that the first steel wire rope moves to be in the same straight line with the second steel wire rope.

[0043] The tree barrier height limiting device provided by the present application can connect branches and trunks through the first steel wire rope and the second steel wire rope, thereby applying external force to the branches to make them grow horizontally, reducing the interference of branches on overhead lines. Compared with the manual pruning method, this solution does not require workers to regularly prune in a cycle, which can reduce the work intensity of workers; compared with the method of setting supports, this solution can be used on trees with thicker diameters and has a wider range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0045] Figure 1 A schematic diagram of the structure of a tree barrier height limiting device provided in an embodiment of the present application applied to a tree trunk;

[0046] Figure 2 A side view of a tree obstacle height limiting device provided in an embodiment of the present application applied to a tree trunk;

[0047] Figure 3 An enlarged view of the bolt positions of a tree barrier height limiting device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0048] The technical solutions of the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the specification of the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection requested by the present application.

[0049] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0050] In the description of the embodiments of the present application, 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 replaceable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0051] See also Figures 1 to 3 A tree obstacle height limiting device provided in an embodiment of the present application includes: a clamp assembly 10, a tightening assembly 20, a first steel wire rope 30 and a second steel wire rope 40.

[0052] The clamp assembly 10 includes a first clamp 11 and a second clamp 12 .

[0053] The first clamp 11 is used to be fixed on the trunk 100, and the second clamp 12 is used to be fixed on the branch 110 of the trunk 100. The first clamp 11 and the second clamp 12 can be structures capable of adjusting the size of the clamping space to adapt to the trunk 100 and the branch 110 of different diameters.

[0054] The tightening assembly 20 includes a tightening bracket 21 and a tightening shaft 22. The tightening bracket 21 is detachably disposed on the first clamp 11; the tightening shaft 22 is rotatably disposed on the tightening bracket 21. The tightening bracket 21 can be detachably connected to the first clamp 11 through a bolt structure.

[0055] One end of the first steel wire rope 30 is detachably wound on the tightening shaft 22, and the other end is fixedly connected to the second clamp 12. Among them, after one end of the first steel wire rope 30 is wound around the tightening shaft 22, the end of the first steel wire rope 30 and the body are connected by a U-shaped clamp, so that the first steel wire rope 30 cannot be separated from the tightening shaft 22 at this time; correspondingly, when the first steel wire rope 30 needs to be untied, the U-shaped clamp can be loosened and removed. The U-shaped clamp is an existing steel wire rope clamping tool and is not described in detail in this embodiment.

[0056] The first steel wire rope 30 is used to follow the rotation of the tightening shaft 22 and be wound on the tightening shaft 22 to pull the branch 110 to move to a preset position. Specifically, after the first steel wire rope 30 is wound on the tightening shaft 22, the tightening shaft 22 can be rotated to tighten the first steel wire rope 30, so that the first steel wire rope 30 pulls the branch 110 to move closer to the first hoop 11. The above-mentioned preset position can be a position where the branch 110 is pulled to a horizontal growth direction or tilted downward.

[0057] One end of the second steel wire rope 40 is fixedly connected to the first hoop 11; the second steel wire rope 40 is used to connect the first steel wire rope 30 after the branch 110 is pulled to a preset position. When the second steel wire rope 40 is connected to the first steel wire rope 30, it can be connected through the above-mentioned U-shaped clamp. Specifically, the method of connecting two steel wire ropes using a U-shaped clamp belongs to the prior art and will not be described in detail in this embodiment.

[0058] The first steel wire rope 30 is also used to be disconnected from the take-up shaft 22 after being connected to the second steel wire rope 40 , so that the first steel wire rope 30 moves to be in the same straight line with the second steel wire rope 40 .

[0059] Before one end of the first steel wire rope 30 is untied, the first steel wire rope 30 is tightened between the second hoop 12 and the tightening shaft 22. After one end of the first steel wire rope 30 is untied, the first steel wire rope 30 moves toward the second steel wire rope 40 until the first steel wire rope 30 and the second steel wire rope 40 are connected in a straight line.

[0060] After the first steel wire rope 30 is untied, the branch 110 will move upward and return; for this reason. The connection position of the second steel wire rope 40 is configured so that after the first steel wire rope 30 is tightened, the return angle of the branch 110 is less than 5°. Specifically, in actual applications, when applied to trees with larger diameters, the length of the first steel wire rope 30 is much greater than the length of the second steel wire rope 40. For this reason, after the first steel wire rope 30 and the second steel wire rope 40 are connected and tightened, the return angle of the branch 110 is smaller.

[0061] In application, the position where the second steel wire rope 40 is connected to the first clamp 11 can be arranged close to the tightening shaft 22, which can reduce the return angle of the branch 110.

[0062] For example, a fixing ring 13 may be provided on the first hoop 11; the fixing ring 13 is used for connecting the second steel wire rope 40, that is, one end of the second steel wire rope 40 is fixedly connected to the fixing ring 13. The tightening bracket 21 and the fixing ring 13 are provided on the same side of the first hoop 11, so that the connection position of the second steel wire rope 40 is close to the connection position of the first steel wire rope 30.

[0063] In this embodiment, the use process of the tree obstacle height limiting device may include the following steps:

[0064] S1, the other end of the first steel wire rope 30 is fixedly connected to the lifting ring 19 on the second hoop 12;

[0065] S2, winding one end of the first steel wire rope 30 around the take-up shaft 22;

[0066] S3, rotating the tightening shaft 22 clockwise, so that the extension length of the first steel wire rope 30 is gradually reduced to pull the branch 110 down, until the branch 110 is lowered to a preset position;

[0067] S4, after one end of the second steel wire rope 40 is fixedly connected to the first clamp 11, the other end of the second steel wire rope 40 is fixedly connected to the first steel wire rope 30;

[0068] S5, rotate the take-up shaft 22 counterclockwise to release the first steel wire rope 30 from the take-up shaft 22, and after the first steel wire rope 30 is completely released, contact the connection between the first steel wire rope 30 and the take-up shaft 22;

[0069] S6. The first steel wire rope 30 moves toward the second steel wire rope 40 until the first steel wire rope 30 and the second steel wire rope 40 are tightened.

[0070] After the first steel wire rope 30 and the second steel wire rope 40 are tightened, one end of the first steel wire rope 30 can be fixed on the fixing ring 13. In addition, after the traction and fixing of the branch 110 are completed, the tightening bracket 21 can be removed from the first hoop 11, so that multiple trees can share the same tightening bracket 21 and tightening shaft 22, reducing the use of materials.

[0071] In one embodiment, in order to facilitate the control of the tightening shaft 22, the tightening assembly 20 also includes: a ratchet 23 and a pawl 24; the ratchet 23 is fixed on the tightening shaft 22; the pawl 24 is movably arranged on the tightening bracket 21; the pawl 24 abuts against the ratchet 23 in a natural state, and is used to limit the rotation of the tightening shaft 22 in the direction of releasing the first wire rope 30.

[0072] Specifically, taking the above steps as an example, when the pawl 24 abuts against the ratchet 23 , the ratchet 23 can be restricted from rotating counterclockwise.

[0073] In the above step S3, due to the cooperation between the ratchet wheel 23 and the pawl 24, it can be ensured that the tightening shaft 22 will not rotate counterclockwise during the process of pulling the branch 110 to cause the branch 110 to return.

[0074] In step S5 , the pawl 24 is first moved so that the pawl 24 is separated from the ratchet wheel 23 , and then the ratchet wheel 23 and the tightening shaft 22 can rotate counterclockwise.

[0075] In one embodiment, the tightening assembly 20 further includes: a handle 25 ; one end of the tightening shaft 22 extends out of the tightening bracket 21 and is connected to a connecting plate 26 ; the handle 25 is detachably connected to the connecting plate 26 .

[0076] The handle 25 can be connected to the connecting plate 26 by connecting pieces such as bolts. The handle 25 can facilitate the staff to manually drive the tightening shaft 22 to rotate.

[0077] In one embodiment, the first hoops 11 include two first hoops 11 ; the two first hoops 11 are disposed on both sides of the tree trunk 100 along a first direction in the horizontal direction; and the two first hoops 11 are connected by bolts 14 .

[0078] The first direction can be Figure 1 The x-axis direction in .

[0079] Optionally, the first clamp 11 is telescopically arranged along a second direction in the horizontal direction; the second direction is perpendicular to the first direction.

[0080] The second direction can be Figure 1The first hoop 11 can be extended and retracted in the second direction by, for example, providing a telescopic bolt arranged in the second direction on the first hoop 11; the first hoop 11 includes a first part and a second part; the first part and the second part are connected by the telescopic bolt. The length of the first hoop 11 in the second direction can be adjusted by rotating the telescopic bolt.

[0081] To this end, in this embodiment, the two first hoops 11 can adapt to trees of different diameters, thereby improving the applicability of the device.

[0082] In one embodiment, see Figure 3 The bolt 14 passes through the two first hoops 11 ; nuts 15 are connected to both sides of the bolt 14 ; and an elastic pad 16 is provided between the nut 15 and the first hoops 11 .

[0083] Specifically, in actual applications, the staff needs to conduct regular inspections to determine the tightness between the clamp assembly 10 and the tree trunk 100 to prevent the clamp assembly 10 from being too tight and affecting the normal growth of the tree trunk.

[0084] In this embodiment, the elastic pad 16 has a high elastic modulus. As the diameter of the trunk 100 increases as it grows, the elastic pad 16 can serve as a buffer between the first clamp 11 and the trunk 100 during the intervals between inspections by staff, while not affecting the tightness of the first clamp 11 during initial installation.

[0085] In one embodiment, the clamp assembly 10 further includes: a protection pad 17 ; the protection pad 17 abuts against the tree trunk 100 ; and two first clamps 11 are sleeved on the outer circumference of the protection pad 17 .

[0086] Furthermore, the clamp assembly 10 further includes: a second protection pad 18 ; the second protection pad 18 abuts against the tree branch 110 ; and the second clamp 12 is sleeved on the outer periphery of the second protection pad 18 .

[0087] The tree trunk 100 and the branches 110 can be protected by the first protection mat 17 and the second protection mat 18 .

[0088] The above are only preferred embodiments of the present application and are not intended to limit the present invention. Although the present application has been described in detail with reference to the examples, those skilled in the art can still modify the technical solutions recorded in the aforementioned examples or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A tree barrier height limiting device, characterized in that: include: A clamp assembly (10), a tightening assembly (20), a first steel wire rope (30), and a second steel wire rope (40); The clamp assembly (10) comprises: a first clamp (11) and a second clamp (12); The first hoop (11) is used to be fixed on the tree trunk (100); The second hoop (12) is used to be fixed on a branch (110) of the tree trunk (100); The tightening assembly (20) comprises: a tightening bracket (21) and a tightening shaft (22); The tightening bracket (21) is detachably arranged on the first clamping hoop (11); The tightening shaft (22) is rotatably disposed on the tightening bracket (21); One end of the first steel wire rope (30) is detachably wound around the tightening shaft (22), and the other end is fixedly connected to the second clamping hoop (12); The first steel wire rope (30) is used to follow the rotation of the tightening shaft (22) and be wound around the tightening shaft (22) to pull the branch (110) to move to a preset position; One end of the second steel wire rope (40) is fixedly connected to the first clamp (11); The second steel wire rope (40) is used to connect to the first steel wire rope (30) after the branch (110) is pulled to the preset position; The first steel wire rope (30) is also used to disconnect from the tightening shaft (22) after being connected to the second steel wire rope (40), so that the first steel wire rope (30) moves to be in the same straight line as the second steel wire rope (40).

2. The tree barrier height limiting device according to claim 1, characterized in that: A fixing ring (13) is provided on the first clamp (11); One end of the second steel wire rope (40) is fixedly connected to the fixing ring (13).

3. The tree barrier height limiting device according to claim 2, characterized in that: The tightening bracket (21) and the fixing ring (13) are arranged on the same side of the first clamping hoop (11).

4. The tree barrier height limiting device according to claim 1, characterized in that: The tightening assembly (20) further comprises: a ratchet (23) and a pawl (24); The ratchet (23) is fixed on the tightening shaft (22); The ratchet pawl (24) is movably arranged on the tightening bracket (21); The pawl (24) abuts against the ratchet wheel (23) in a natural state, and is used to limit the rotation of the tightening shaft (22) in a direction of releasing the first steel wire rope (30).

5. The tree barrier height limiting device according to claim 1, characterized in that: The tightening assembly (20) further comprises: a handle (25); One end of the tightening shaft (22) extends out of the tightening bracket (21) and is connected to a connecting plate (26); The handle (25) is detachably connected to the connecting plate (26).

6. The tree barrier height limiting device according to claim 1, characterized in that: The first clamp (11) comprises two; The two first hoops (11) are arranged on both sides of the tree trunk (100) along a first direction in the horizontal direction; The two first hoops (11) are connected via bolts (14).

7. The tree barrier height limiting device according to claim 6, characterized in that: The first clamp (11) is telescopically arranged along a second direction in the horizontal direction; The second direction is perpendicular to the first direction.

8. The tree barrier height limiting device according to claim 7, characterized in that: The bolt (14) passes through the two first hoops (11); Both sides of the bolt (14) are connected with nuts (15); An elastic cushion block (16) is provided between the nut (15) and the first clamp (11).

9. The tree barrier height limiting device according to claim 6, characterized in that: The clamp assembly (10) further comprises: a protection pad (17); The protection pad (17) abuts against the tree trunk (100); The two first hoops (11) are sleeved on the outer circumference of the protection pad (17).

10. The tree barrier height limiting device according to claim 1, characterized in that: The clamp assembly (10) further comprises: a second protection pad (18); The second protection pad (18) abuts against the tree branch (110); The second clamp (12) is sleeved on the outer circumference of the second protection pad (18).

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