Lightning protection side needle on overhead ground wire side of high-voltage transmission line

Abstract

The invention belongs to the technical field of lightning protection rods, and discloses a high-voltage transmission line overhead ground wire side lightning protection side rod, which comprises a mounting support frame, the mounting bolts sleeve the two sides of the mounting support frame in a threaded manner; the protection assemblies are arranged on the two sides of the installation supporting frame and the outer sides of the installation bolts. According to the technical scheme, limiting sliding rods, triangular clamping blocks and second power springs are arranged, when two stainless steel protection shells are pushed to move inwards, the stainless steel protection shells can push inclined faces on the inner sides of the triangular clamping blocks, and therefore the two triangular clamping blocks are pushed to move oppositely; when a notch in the inner side of the stainless steel protective shell is right opposite to a triangular clamping block, the elastic force of a second power spring is released, so that the two sliding splicing frames, the connecting piece and the triangular clamping block are smoothly pushed to move oppositely, and the triangular clamping block is clamped in the notch in the inner side of the stainless steel protective shell to fix the stainless steel protective shell; and the mounting bolts are shielded and protected through the stainless steel protective shell.

Description

Technical Field

[0001] The invention belongs to the technical field of lightning protection rods, in particular to a lightning protection side rod on the overhead ground wire side of a high-voltage transmission line. Background Art

[0002] The lightning protection side needle on the overhead ground wire side of the high-voltage transmission line, also known as the lateral lightning rod or the pilot side needle, is an important lightning protection device. Its main functions and characteristics are as follows: 1. Expand the protection range: By installing lateral lightning rods, the ability of the lightning conductor to attract weak lightning can be enhanced, thereby increasing the protection range of the lightning conductor and reducing the probability of transmission lines being struck by lightning.

[0003] 2. Improve lightning attracting ability: Compared with linear objects, needle-shaped objects are more likely to produce oncoming leaders to intercept downward leaders. Installing short needles on pole towers can increase the lightning attracting ability of pole towers and effectively attract weak lightning that penetrates into lower spaces and causes bypass strikes.

[0004] 3. Reduce the shielding failure rate: The installation of lateral lightning rods can significantly reduce the shielding failure rate of transmission lines, avoid flashover accidents, and improve the lightning protection effect. For example, the JLT-XII high-efficiency anti-shielding lightning rod can reduce the probability of shielding failure by more than 80%.

[0005] 4. Optimize the electric field distribution: The special design of the lightning protection side rod can optimize the electric field distribution, so that lightning can accurately strike the lightning rod when it strikes within the protection range, avoiding the "circumvention" and "side strike" phenomena of traditional lightning rods.

[0006] 5. Reduce lightning energy: The lightning protection side has an early leading effect on lightning, reducing the energy of lightning flashes, reducing the intensity of lightning electromagnetic pulses nearby, and reducing the energy of ground potential counter-attack and various lines coupling with lightning, thereby reducing various hazards caused by lightning strikes.

[0007] The above-mentioned lightning protection side rod, as an important lightning protection device, plays an important role in lightning protection of power transmission lines. By installing lightning protection side rods, the protection range of lightning conductors can be expanded, the lightning induction capacity can be improved, the shielding rate can be reduced, the electric field distribution can be optimized, and the lightning strike energy can be reduced, thereby improving the lightning protection effect of power transmission lines. When installing lightning protection side rods, attention should be paid to the installation position, quantity, installation requirements and other matters to ensure that the lightning protection side rods can play the maximum lightning protection effect.

[0008] The existing patent publication number is CN115065023A, which is a lightning protection side needle, specifically a lightning protection side needle on the side of the overhead ground wire of a high-voltage transmission line, including a side needle body and a side needle base. The side needle base is used to connect the tower body. The side needle body is arranged on the side needle base. The side needle body includes a front steel pipe, a rear steel pipe and a side needle support plate. The side needle support plate has an installation groove, one end of the rear steel pipe is plug-connected with the front steel pipe, and the other end of the rear steel pipe is arranged in the installation groove. The side needle base is used to connect tower bodies of different tower shapes. The side needle body is installed on the side needle base to adapt to various tower shapes and is easy to install.

[0009] When the existing lightning protection side pin is fixedly installed on one side of the overhead ground wire of the transmission line with bolts, the bolts are directly exposed to the outside world. When it rains, they will be washed by rainwater, which will cause them to be exposed to moisture for a long time and rust, affecting the subsequent installation and disassembly. Therefore, they need to be improved. Summary of the invention

[0010] In order to solve the problems raised in the above background technology, the present invention provides a lightning protection side pin on the overhead ground wire side of a high-voltage transmission line, which has the advantage of being convenient for shielding and protecting bolts.

[0011] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a lightning protection side needle on the overhead ground wire side of a high-voltage transmission line, comprising a mounting support frame; mounting bolts, which are threadedly sleeved on both sides of the mounting support frame; a protective component, which is arranged on both sides of the mounting support frame and on the outside of the mounting bolts; a clamping component comprises a sliding splicing frame, which is movably installed inside the mounting support frame and on the inner side of the front and rear of the protective component, a connecting piece is fixedly installed on the outer side of the bottom end of the sliding splicing frame, a triangular clamping block is arranged on the inner side of the outer end of the connecting piece, and a second power spring is arranged on the outer side of the sliding splicing frame and is located between the inner walls of the mounting support frame.

[0012] Preferably, the number of the mounting bolts is four, and the bottom ends of the four mounting bolts all pass through the mounting support frame.

[0013] Preferably, a lightning rod installation column is movably sleeved on the top of the inner side of the installation support frame, and a lightning protection side needle body is threadedly sleeved on the inner wall of the lightning rod installation column.

[0014] Preferably, the protection assembly comprises a stainless steel protection shell, a limit slide bar and a first power spring; The stainless steel protective shell is movably installed on the top of the mounting support frame and on the outside of the mounting bolts. The limiting slide bar is fixedly installed on the front and rear sides of the inner wall of the mounting support frame, and the surface is movably connected to the bottom end of the stainless steel protective shell. The first power spring is arranged at the rear end of the bottom of the stainless steel protective shell.

[0015] Preferably, the other end of the first power spring is fixedly connected to the inner wall of the mounting support frame.

[0016] Preferably, the mounting support frame is movably sleeved internally with a push-down drive block located above the inner side of the sliding splicing frame, and the bottom of the push-down drive block is slidably connected to the inner side of the top of the clamping assembly.

[0017] Preferably, a locking assembly located outside the lightning rod installation plug column is provided inside the installation support frame, and the locking assembly includes a driving gear, a first pneumatic piston groove, a first pneumatic piston rod and a locking tooth block; The driving gear is movably sleeved on the outer end surface of the lightning rod mounting column and the inside of the mounting support frame. The first pneumatic piston groove is opened inside the mounting support frame and in the middle of the front and rear ends of the driving gear. The first pneumatic piston rod is movably installed inside the first pneumatic piston groove. The locking tooth block is fixedly installed on the inner side of the first pneumatic piston rod.

[0018] Preferably, the inner side of the locking tooth block is meshed with the surface of the driving gear.

[0019] Preferably, a pneumatic assembly located inside the connecting piece is arranged inside the mounting support frame, and the pneumatic assembly includes a second pneumatic piston groove, a second pneumatic piston rod and a ventilation connection groove; The second pneumatic piston groove is opened inside the mounting support frame and on the inner side of the connecting piece, the second pneumatic piston rod is movably sleeved inside the second pneumatic piston groove, the ventilation connection groove is opened inside the mounting support frame and on the top of the rear end of the second pneumatic piston groove, and is fixedly connected to the inner cavity of the second pneumatic piston groove.

[0020] Preferably, the other end of the ventilation connection groove is fixedly connected to the middle part of the outer side of the driving gear.

[0021] Compared with the prior art, the present invention has the following beneficial effects: The above technical solution is provided with a limit slide rod, a triangular clamping block and a second power spring. When the two stainless steel protective shells are pushed inward respectively, the stainless steel protective shells can push the inclined surface inside the triangular clamping block, thereby pushing the two triangular clamping blocks to move back to back until the inner groove of the stainless steel protective shell is directly opposite to the triangular clamping block. At this time, the elastic force of the second power spring will be released, thereby smoothly pushing the two sliding splicing frames, the connecting parts and the triangular clamping blocks to move toward each other, so that the triangular clamping block is stuck in the inner groove of the stainless steel protective shell to fix the stainless steel protective shell, and the mounting bolts are shielded and protected by the stainless steel protective shell.

[0022] The present invention provides a driving gear and a locking tooth block. When the stainless steel protective shell moves inward, the second pneumatic piston rod can be pushed to retract into the second pneumatic piston groove, so that the gas in the inner cavity of the second pneumatic piston groove enters into the first pneumatic piston groove through the ventilation connecting groove, so that the air pressure in the inner cavity of the first pneumatic piston groove becomes larger, thereby smoothly pushing the two first pneumatic piston rods and the locking tooth block to move toward each other to clamp and fix the driving gear as a whole. At this time, the driving gear, the lightning rod mounting column and the lightning protection side needle body can be rotated and fixed at a suitable angle as a whole, so that the lightning protection side needle body always remains in a vertical state. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a partial cross-sectional structural schematic diagram of the mounting support frame of the present invention; Figure 3 It is a partial cross-sectional structural schematic diagram of the stainless steel protective shell of the present invention; Figure 4 for Figure 3 A schematic diagram of the local enlarged structure at point A in the middle; Figure 5 The structural diagram of the locking assembly of the present invention is Figure 6 It is a schematic cross-sectional structural diagram of the sliding splicing frame of the present invention; Figure 7 It is a structural schematic diagram of the clamping assembly of the present invention; Figure 8 for Figure 7 Schematic diagram of the local enlarged structure at point B in the middle.

[0024] In the figure: 1. Installation support frame; 2. Lightning rod installation column; 3. Lightning protection side needle body; 4. Installation bolts; 5. Protection assembly; 501. Stainless steel protective shell; 502. Limit slide bar; 503. First power spring; 6. Clamping assembly; 601. Triangular clamping block; 602. Connecting piece; 603. Sliding splicing frame; 604. Second power spring; 7. Pressing drive block; 8. Locking assembly; 801. Driving gear; 802. First pneumatic piston groove; 803. First pneumatic piston rod; 804. Locking gear block; 9. Pneumatic assembly; 901. Second pneumatic piston groove; 902. Second pneumatic piston rod; 903. Ventilation connection groove. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] like Figures 1 to 8 As shown, the present invention provides a lightning protection side needle on the overhead ground wire side of a high-voltage transmission line, including a mounting support frame 1; mounting bolts 4, which are threadedly sleeved on both sides of the mounting support frame 1; a protective component 5, which is arranged on both sides of the mounting support frame 1 and on the outside of the mounting bolts 4; a clamping component 6 includes a sliding splicing frame 603, which is movably installed inside the mounting support frame 1 and on the inner side of the front and rear of the protective component 5, a connecting piece 602 is fixedly installed on the outer side of the bottom end of the sliding splicing frame 603, a triangular clamping block 601 is arranged on the inner side of the outer end of the connecting piece 602, and a second power spring 604 located between the inner walls of the mounting support frame 1 is arranged on the outer side of the sliding splicing frame 603.

[0027] When the protective component 5 moves toward each other, it can squeeze and push the two triangular clamping blocks 601, the connecting piece 602 and the sliding splicing frame 603 to move away from each other until the elastic force of the second power spring 604 is released, thereby pushing the two triangular clamping blocks 601 toward each other and clamping them in the inner groove of the protective component 5, so that the protective component 5 is fixed to protect the mounting bolt 4.

[0028] like Figure 1 and Figure 2 As shown, there are four mounting bolts 4 , and the bottom ends of the four mounting bolts 4 all penetrate the mounting support frame 1 .

[0029] By adopting the above solution, by providing the mounting bolts 4 , the operator can fix the entire mounting support frame 1 on one side of the overhead column by rotating the mounting bolts 4 .

[0030] like Figure 1 As shown, the top of the inner side of the mounting support frame 1 is movably sleeved with a lightning rod mounting plug column 2, and the inner wall of the lightning rod mounting plug column 2 is threadedly sleeved with a lightning protection side pin body 3.

[0031] The above solution is adopted: through the threaded design inside the lightning rod installation column 2 and the bottom of the lightning protection side needle body 3, the bottom end of the lightning protection side needle body 3 can be rotated and inserted into the interior of the lightning rod installation column 2 for installation.

[0032] like Figure 1 and Figure 7 As shown, the protection assembly 5 includes a stainless steel protection shell 501, a limit slide bar 502 and a first power spring 503; The stainless steel protective shell 501 is movably installed on the top of the mounting support frame 1 and on the outside of the mounting bolt 4. The limiting slide bar 502 is fixedly installed on the front and rear sides of the inner wall of the mounting support frame 1, and the surface is movably connected to the bottom end of the stainless steel protective shell 501. The first power spring 503 is arranged at the rear end of the bottom of the stainless steel protective shell 501.

[0033] By adopting the above solution, by providing the limit sliding bar 502 , when the stainless steel protective shell 501 moves, it can move toward and away from each other in the horizontal direction along the surface of the limit sliding bar 502 .

[0034] like Figure 7 As shown, the other end of the first power spring 503 is fixedly connected to the inner wall of the mounting support frame 1 .

[0035] The above scheme is adopted: by providing a first power spring 503, due to the elastic force of the first power spring 503 itself, when released, it will push the two stainless steel protective shells 501 to move in opposite directions, thereby removing the obstruction of the mounting bolt 4, so that the mounting bolt 4 can be subsequently rotated to perform installation and disassembly operations on the entire mounting support frame 1.

[0036] like Figure 8 As shown, the mounting support frame 1 is movably sleeved with a downward-pressing driving block 7 located above the inner side of the sliding splicing frame 603 , and the bottom of the downward-pressing driving block 7 is slidably connected to the inner side of the top of the clamping assembly 6 .

[0037] The above scheme is adopted: by providing a downward driving block 7, due to the matching angles of the bottom inclined surface of the downward driving block 7 and the top inner inclined surface of the clamping assembly 6, when the downward driving block 7 is pushed downward, the two sliding splicing frames 603, the connecting piece 602 and the triangular clamping block 601 can be squeezed and pushed to move in opposite directions.

[0038] like Figure 5 As shown, a locking assembly 8 is provided inside the mounting support frame 1 and is located outside the lightning rod mounting plug column 2. The locking assembly 8 includes a driving gear 801, a first pneumatic piston groove 802, a first pneumatic piston rod 803 and a locking tooth block 804; The driving gear 801 is movably sleeved on the outer end surface of the lightning rod mounting column 2 and the inside of the mounting support frame 1. The first pneumatic piston groove 802 is opened inside the mounting support frame 1 and in the middle of the front and rear ends of the driving gear 801. The first pneumatic piston rod 803 is movably installed inside the first pneumatic piston groove 802, and the locking gear block 804 is fixedly installed on the inner side of the first pneumatic piston rod 803.

[0039] By adopting the above solution, the first pneumatic piston groove 802 is provided. When the air pressure at the outer end of the inner cavity of the first pneumatic piston groove 802 increases, the first pneumatic piston rod 803 will push the two locking tooth blocks 804 to move toward each other.

[0040] like Figure 5 As shown, the inner side of the locking tooth block 804 is meshed with the surface of the driving gear 801 .

[0041] The above scheme is adopted: by providing a locking tooth block 804, when the two first pneumatic piston rods 803 push the two locking tooth blocks 804 toward each other so that the inner ends are in engagement with the teeth on the surface of the driving gear 801 and are clamped and fixed, the driving gear 801, the lightning rod mounting column 2 and the lightning rod body 3 can be fixed as a whole.

[0042] like Figure 4 and Figure 5 As shown, the interior of the mounting support frame 1 is provided with a pneumatic assembly 9 located inside the connecting piece 602, and the pneumatic assembly 9 includes a second pneumatic piston groove 901, a second pneumatic piston rod 902 and a ventilation connection groove 903; The second pneumatic piston groove 901 is opened inside the mounting support frame 1 and on the inner side of the connecting piece 602, the second pneumatic piston rod 902 is movably sleeved inside the second pneumatic piston groove 901, and the ventilation connecting groove 903 is opened inside the mounting support frame 1 and on the top of the rear end of the second pneumatic piston groove 901, and is fixedly connected to the inner cavity of the second pneumatic piston groove 901.

[0043] The above solution is adopted: by providing a second pneumatic piston rod 902, when the stainless steel protective shell 501 moves towards each other, it will push the two second pneumatic piston rods 902 to move towards each other, so that the second pneumatic piston rod 902 pushes the gas in the second pneumatic piston groove 901 away through the ventilation connection groove 903.

[0044] like Figure 5 As shown, the other end of the ventilation connection groove 903 is fixedly connected to the middle part of the outer side of the driving gear 801.

[0045] The above scheme is adopted: by providing a ventilation connecting groove 903, when the second pneumatic piston rod 902 pushes the inner cavity of the second pneumatic piston groove 901 through the ventilation connecting groove 903, the gas will be introduced into the first pneumatic piston groove 802, so that the air pressure in the inner cavity outside the first pneumatic piston groove 802 becomes larger.

[0046] The working principle and use process of the present invention: First, the operator can fit the installation support frame 1 to one side of the overhead column, use the installation bolts 4 to fix the whole in the specified position, and then screw the bottom end of the lightning protection side needle body 3 into the lightning protection rod installation column 2 for installation and fixation, and then rotate the lightning protection rod installation column 2 to a suitable angle to keep the lightning protection side needle body 3 vertical.

[0047] Afterwards, the two stainless steel protective shells 501 can be pushed to move inward respectively, so that the stainless steel protective shell 501 pushes the inclined surface inside the triangular clamping block 601 to drive the two triangular clamping blocks 601 to move away from each other, and then when the inner notch of the stainless steel protective shell 501 is directly opposite to the triangular clamping block 601, the elastic force of the second power spring 604 will be released to push the two sliding splicing frames 603, the connecting piece 602 and the triangular clamping block 601 to move towards each other as a whole, until the triangular clamping block 601 is completely stuck in the inner notch of the stainless steel protective shell 501, and the stainless steel protective shell 501 can be fixed to shield and protect the mounting bolts 4.

[0048] At the same time, when the stainless steel protective shell 501 moves inward, it will push the second pneumatic piston rod 902 to push the gas in the inner cavity of the second pneumatic piston groove 901 into the inner cavity of the first pneumatic piston groove 802 through the ventilation connecting groove 903, thereby increasing the air pressure and pushing the two first pneumatic piston rods 803 locking gear blocks 804 to move towards each other. At this time, due to the meshing relationship between the inner side of the locking gear block 804 and the surface of the driving gear 801, when the locking gear block 804 faces each other, the overall locking gear block 804, the lightning rod mounting column 2 and the lightning protection side needle body 3 can be fixed as a whole.

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lightning protection side needle on the overhead ground wire side of a high-voltage transmission line, characterized in that: It includes a mounting support frame (1); Mounting bolts (4) are threadedly sleeved on both sides of the mounting support frame (1); Protection components (5) are arranged on both sides of the mounting support frame (1) and outside the mounting bolts (4); The clamping assembly (6) comprises a sliding splicing frame (603) movably mounted inside the mounting support frame (1) and inside the front and rear sides of the protective assembly (5); a connecting piece (602) is fixedly mounted on the outer side of the bottom end of the sliding splicing frame (603); a triangular clamping block (601) is arranged on the inner side of the outer end of the connecting piece (602); and a second power spring (604) is arranged on the outer side of the sliding splicing frame (603) and is located between the inner walls of the mounting support frame (1).

2. The lightning protection side needle on the overhead ground wire side of the high-voltage transmission line according to claim 1 is characterized by: The number of the mounting bolts (4) is four, and the bottom ends of the four mounting bolts (4) all penetrate the mounting support frame (1).

3. The lightning protection side needle on the overhead ground wire side of the high-voltage transmission line according to claim 1 is characterized by: The top of the inner side of the mounting support frame (1) is movably sleeved with a lightning rod mounting plug post (2), and the inner wall of the lightning rod mounting plug post (2) is threadedly sleeved with a lightning rod side pin body (3).

4. The lightning protection side needle on the overhead ground wire side of the high-voltage transmission line according to claim 1 is characterized by: The protection component (5) comprises a stainless steel protection shell (501), a limit sliding rod (502) and a first power spring (503); The stainless steel protective shell (501) is movably mounted on the top of the mounting support frame (1) and on the outside of the mounting bolts (4); the limiting slide bar (502) is fixedly mounted on the front and rear sides of the inner wall of the mounting support frame (1), and the surface is movably sleeved with the bottom end of the stainless steel protective shell (501); and the first power spring (503) is arranged at the rear end of the bottom of the stainless steel protective shell (501).

5. The lightning protection side needle on the overhead ground wire side of the high-voltage transmission line according to claim 4 is characterized in that: The other end of the first power spring (503) is fixedly connected to the inner wall of the mounting support frame (1).

6. The lightning protection side needle on the overhead ground wire side of the high-voltage transmission line according to claim 1 is characterized by: The mounting support frame (1) is internally movably sleeved with a downward pressing driving block (7) located above the inner side of the sliding splicing frame (603), and the bottom of the downward pressing driving block (7) is slidably connected to the inner side of the top of the clamping assembly (6).

7. The lightning protection side needle on the overhead ground wire side of the high-voltage transmission line according to claim 1 is characterized by: The interior of the mounting support frame (1) is provided with a locking assembly (8) located outside the lightning rod mounting plug column (2), and the locking assembly (8) comprises a driving gear (801), a first pneumatic piston groove (802), a first pneumatic piston rod (803) and a locking tooth block (804); The driving gear (801) is movably sleeved on the outer end surface of the lightning rod installation column (2) and the inside of the installation support frame (1); the first pneumatic piston groove (802) is opened inside the installation support frame (1) and in the middle of the front and rear ends of the driving gear (801); the first pneumatic piston rod (803) is movably installed inside the first pneumatic piston groove (802); and the locking tooth block (804) is fixedly installed on the inner side of the first pneumatic piston rod (803).

8. The lightning protection side needle on the overhead ground wire side of the high-voltage transmission line according to claim 7 is characterized by: The inner side of the locking tooth block (804) meshes with the surface of the driving gear (801).

9. The lightning protection side needle on the overhead ground wire side of the high-voltage transmission line according to claim 1 is characterized by: The interior of the mounting support frame (1) is provided with a pneumatic assembly (9) located inside the connecting piece (602), wherein the pneumatic assembly (9) comprises a second pneumatic piston groove (901), a second pneumatic piston rod (902) and a ventilation connection groove (903); The second pneumatic piston groove (901) is provided inside the mounting support frame (1) and on the inner side of the connecting piece (602); the second pneumatic piston rod (902) is movably sleeved inside the second pneumatic piston groove (901); the venting connection groove (903) is provided inside the mounting support frame (1) and on the top of the rear end of the second pneumatic piston groove (901), and is fixedly connected to the inner cavity of the second pneumatic piston groove (901).

10. The lightning protection side needle on the overhead ground wire side of the high-voltage transmission line according to claim 9, characterized in that: The other end of the ventilation connection groove (903) is fixedly connected to the middle part of the outer side of the driving gear (801).

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