Rapidly-installed power transmission overhead line tower grounding body connecting device

Abstract

The invention provides a power transmission overhead line tower grounding body connecting device capable of being rapidly installed, and relates to the technical field of overhead power transmission lines. The quickly-installed power transmission overhead line tower grounding body connecting device comprises a clamping block which is composed of two groups of clamping plates which are opposite to each other up and down. According to the invention, after a wire is inserted into the first through hole, the two groups of clamping plates are close to each other for clamping, the tips of the multiple groups of anti-loosening nails penetrate into the outer wall of the wire to form fixation, the connection part of the wire and the clamping block is prevented from loosening, the clamping sleeve and the clamping plates are adsorbed and fixed through the magnetic structures, and the worn anti-loosening nails can be replaced after the clamping sleeve is taken down during maintenance; and each end of the T shape is provided with the first through hole for the wire to insert, so that the two groups of clamping plates forming the clamping block can be conveniently and directly locked through the locking screws with the same specification, the mounting and dismounting actions can be completed only by one handle, and the mounting and the maintenance are very convenient.

Description

Technical Field

[0001] The invention relates to the technical field of overhead power transmission lines, in particular to a quickly installed power transmission overhead line pole tower grounding body connection device. Background Art

[0002] With the development of human economy and society, people's work and life are increasingly inseparable from electric energy. In recent years, the rapid development of new energy sources such as wind power and photovoltaics, the access of large-scale wind farms and photovoltaic power stations, and long-distance, ultra-high voltage transmission have changed the traditional power system mode, formed a new power system, and promoted the rapid development of ultra-high voltage large power grid construction. Once a power grid fails, it directly threatens the safe operation and reliable power supply of the power grid. Therefore, the safe operation of the power grid has also received more and more attention. Among them, overhead transmission lines are one of the important components of the power grid, and their safe and reliable operation is the key to ensuring the safety of the power grid. There are many factors that induce line failures, such as wind damage, ice damage, external force damage, lightning strikes, bird damage, etc. Among them, lightning damage is very harmful to the safe operation of the line. According to incomplete statistics, only 220 kV overhead transmission line lightning fault tripping accounts for more than 30% of line faults. Line lightning faults, at the least, cause line fault tripping, and at the worst, cause large-scale power outages in the power grid. Therefore, in order to ensure the safe and stable operation of the power grid, it is necessary to continuously improve the lightning resistance level of transmission lines and reduce the occurrence of lightning faults.

[0003] The 110 kV and above power grid is a direct grounding system. The lightning protection measures generally adopted for 110 kV overhead transmission lines are to erect lightning arresters and install grounding connection devices. Among them, the grounding connection device is an important part of the lightning protection measures. Whether the line lightning protection measures can play a role depends mainly on whether the grounding connection device is installed and used reasonably. At present, the grounding connection device is basically made of metal, non-metal and composite materials. Metal materials include: galvanized steel, copper-plated round steel, stainless steel, flat steel, copper, etc.; non-metallic materials include: graphite grounding modules, resistance reduction agents, graphite-based flexible grounding strips, graphite cloth, flexible graphite paper, quick-mount graphite grounding electrodes, graphite grounding down conductors, graphite grounding wires, flexible graphite grounding flat strips, conductive cement (non-metallic fine particles with low resistivity), etc.; composite materials include: aluminum alloy grounding modules, ion grounding electrodes (metal as the outer sheath, filled with easily diffusible conductive electrolyte filling materials), copper-clad steel, etc.

[0004] At present, the common grounding connection devices on the market need to be connected to the conductive wires by welding, which is inconvenient to install and maintain. In addition, welding operations involve fire, which poses a safety hazard to construction. Some connection devices are replaced by other wire clamps, which have problems such as loose connection, easy loosening and poor contact. Therefore, it is necessary to optimize and improve the structure of the grounding connection device of the overhead line tower. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the shortcomings of the prior art, the present invention provides a quickly installed transmission overhead line tower grounding connection device, which solves the problems of the common grounding connection devices on the market being inconvenient to install and maintain and having construction safety hazards, as well as the problem that the connection devices replaced by wire clamps have weak connections, are easy to loosen and have poor contact.

[0007] (II) Technical solution

[0008] To achieve the above purpose, the present invention is implemented through the following technical solutions: a quickly installed power transmission overhead line tower grounding body connection device, including a clamp block, the clamp block is composed of two groups of clamps that are opposite to each other up and down, the two groups of clamps are stainless steel, the clamp is T-shaped when viewed from above, the clamp is composed of a base block and three groups of extension blocks, and the three groups of extension blocks are respectively arranged on the front wall, left wall and right wall of the clamp, the upper and lower sides of the extension block are respectively flush with the upper and lower sides of the base block, two groups of first through holes are arranged on the opposite sides of the two groups of clamp blocks, and the two groups of first through holes are respectively located in the front and rear directions of the horizontal side of the T-shaped clamp. The first through hole is located in the middle position and the middle position in the left and right directions of the T-shaped vertical side, a section of the inner wall within the range of the extension block is provided with a first card slot, the inner wall of the first card slot is provided with a jacket, the inner wall of the jacket is provided with a second through hole that penetrates the first through hole, the inner wall of the jacket is provided with an anti-loosening structure for preventing loosening during clamping, a magnetic attraction structure for adsorption and fixation is provided between the jacket and the first card slot, an elastic structure for separating the two groups of splints is provided between the opposite sides of the two groups of splints, and a guide structure for guiding the two groups of splints when they move relative to each other is also provided between the opposite sides of the two groups of splints.

[0009] Preferably, the anti-loosening structure comprises a plurality of groups of anti-loosening nails, the plurality of groups of anti-loosening nails are all clamped on the inner wall of the jacket, and the axial extension lines of the plurality of groups of anti-loosening nails are all perpendicular to the axial line of the jacket.

[0010] Preferably, the inner wall of the jacket is through-through and provided with a plurality of fixing holes with axis lines perpendicular to the axis line of the jacket, and a step hole is provided at one end of the fixing hole close to the circumferential outer wall of the jacket, and the anti-loosening nail consists of a straight rod and a hanging platform, the straight rod is slidably connected to the inner wall of the fixing hole, the hanging platform is fixedly connected to the end of the straight rod away from the axis of the jacket and the hanging platform is slidably connected to the inner wall of the step hole, and a pointed head is provided at the end of the straight rod away from the hanging platform, and the end of the pointed head away from the straight rod passes through the fixing hole and extends into the second through hole.

[0011] Preferably, the material of the multiple groups of anti-loosening nails is SKD11, and the hardness of the multiple groups of anti-loosening nails is HRC58°.

[0012] Preferably, the magnetic attraction structure includes a first magnetic block and a second magnetic block, a group of clamping blocks are fixedly connected to the outer wall of the jacket and located on both sides of the axis, a group of second clamping grooves are respectively arranged on both sides of the axis of the first clamping groove, the two groups of clamping blocks are respectively clamped with the inner side walls of the two groups of second clamping grooves, and the first magnetic block and the second magnetic block are respectively arranged between the second clamping groove and the upper and lower opposite sides of the clamping block.

[0013] Preferably, a first fixed groove and a second fixed groove are respectively arranged between the second card slot and the upper and lower opposite sides of the card block, the first magnetic block and the second magnetic block are respectively fixedly connected to the inner side walls of the first fixed groove and the second fixed groove, and the magnetic poles of the first magnetic block and the second magnetic block on the opposite side are opposite.

[0014] Preferably, the elastic structure includes multiple groups of springs, multiple groups of mounting holes are respectively arranged between opposite sides of the two groups of clamps and on both sides of the axis of the two groups of first through holes, and the multiple groups of springs are respectively arranged between two groups of mounting holes that are opposite to each other up and down.

[0015] Preferably, the guide structure includes multiple groups of guide columns, and multiple groups of guide holes are arranged on the inner wall of the lower group of the two groups of splints, and the multiple groups of guide holes are respectively arranged at one end of the three groups of extension blocks away from the base block. The multiple groups of guide columns are fixedly connected to the lower wall of the upper group of the two groups of splints, and the multiple groups of guide columns are respectively opposite to the multiple groups of guide holes up and down, and the ends of the multiple groups of guide columns away from the connection between the guide columns and the splints are respectively slidably connected to the inner side walls of the multiple groups of guide holes.

[0016] Preferably, the two groups of clamps are locked by six groups of locking screws.

[0017] (III) Beneficial effects

[0018] The present invention provides a fast-installed transmission overhead line tower grounding connection device, which has the following beneficial effects:

[0019] 1. Compared with the prior art, the quick-installed transmission overhead line tower grounding connection device has a jacket arranged inside the first through hole, and anti-loosening nails made of SKD11 material are arranged on the inner wall of the jacket. After the wire is inserted into the first through hole, the two sets of clamps are clamped together, and the pointed ends of multiple sets of anti-loosening nails pierce the outer wall of the wire to form a fixation, which can greatly improve the firmness of the connection, avoid loosening of the connection between the wire and the clamp block, and improve the effectiveness of the grounding connection device. The jacket and the clamp are fixed by a magnetic structure. During maintenance, the jacket can be removed and the worn anti-loosening nails can be replaced. The rest of the device can be reused, effectively improving the service life of the device.

[0020] 2. Compared with the prior art, the quick-install transmission overhead line tower grounding connection device has a T-shaped clamp block, and each end of the T-shape is provided with a first through hole for inserting the wire, which can be conveniently realized by directly locking the two sets of clamping plates that make up the clamp block with locking screws of the same specification. Only a handle is needed to complete the installation and disassembly actions, and installation and maintenance are very convenient.

[0021] 3. Compared with the prior art, the quick-install transmission overhead line tower grounding connection device has multiple sets of guide columns and multiple sets of springs between the two sets of clamps. After loosening all the locking screws, the two sets of clamps can be kept separated by the spring force, which is convenient for inserting and removing the wires. The multiple sets of guide columns are set so that turning a single locking screw will not cause tilting between the clamps, and all the locking screws can be rotated freely without interference. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 For the present invention Figure 1 Schematic diagram of the AA section;

[0024] Figure 3 For the present invention Figure 2 A partial enlarged view of point B in the middle;

[0025] Figure 4 It is a schematic diagram of the connection structure between the lower set of clamping plates and the spring in the two sets of clamping plates of the present invention;

[0026] Figure 5 For the present invention Figure 4 A partial enlarged view of point C in the middle;

[0027] Figure 6 This is a radial cross-sectional view of the connection structure of the jacket and the clamp block of the present invention;

[0028] Figure 7 It is a schematic diagram of the anti-loosening nail structure of the present invention.

[0029] Among them, 1, splint; 101, base block; 102, extension block; 2, first through hole; 3, locking screw; 4, guide column; 5, guide hole; 6, sleeve; 7, anti-loosening nail; 701, straight rod; 702, hanging table; 703, pointed head; 8, clamping block; 9, first magnetic block; 10, second magnetic block; 11, first clamping slot; 12, second clamping slot; 13, first fixed slot; 14, mounting hole; 15, spring; 16, second fixed slot; 17, fixing hole; 18, step hole; 19, second through hole. DETAILED DESCRIPTION

[0030] 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.

[0031] Example:

[0032] like Figures 1 to 7 As shown, an embodiment of the present invention provides a quickly installed transmission overhead line tower grounding body connection device, including a clamp block, the clamp block is composed of two groups of clamp plates 1 that are opposite to each other up and down, the two groups of clamp plates 1 are both stainless steel, the clamp plate 1 is T-shaped when viewed from above, the clamp plate 1 is composed of a base block 101 and three groups of extension blocks 102, and the three groups of extension blocks 102 are respectively arranged on the front wall, left wall and right wall of the clamp plate 1, the upper and lower sides of the extension block 102 are respectively flush with the upper and lower sides of the base block 101, two groups of first through holes 2 are arranged on opposite sides of the two groups of clamp blocks 1, the two groups of first through holes 2 are respectively located at the center of the front and rear directions of the T-shaped horizontal side of the clamp plate 1 and the center of the left and right directions of the T-shaped vertical side, the two groups of clamp plates 1 are locked by six groups of locking screws 3, and the T-shaped ends are all provided with first through holes 2, so that the connection device can realize the direct state of the three groups of wires;

[0033] In order to prevent the wire from loosening after being inserted into the first through hole 2 and clamped by the two groups of clamping plates 1, a first card slot 11 is provided on the inner side wall of the first through hole 2 within the range of the extension block 102, a jacket 6 is provided on the inner side wall of the first card slot 11, a second through hole 19 which is connected to the first through hole 2 is provided on the inner wall of the jacket 6, and an anti-loosening structure is provided on the inner wall of the jacket 6 to prevent loosening during clamping, and the anti-loosening structure includes multiple groups of anti-loosening nails 7, and the multiple groups of anti-loosening nails 7 are all clamped on the inner wall of the jacket 6, and the axis extension lines of the multiple groups of anti-loosening nails 7 are The anti-loosening nail 7 is perpendicular to the axis of the jacket 6. The anti-loosening nail 7 is composed of a straight rod 701 and a hanging platform 702. The end of the straight rod 701 away from the hanging platform 702 is provided with a pointed head 703. The end of the pointed head 703 away from the straight rod 701 passes through the fixing hole 17 and extends into the second through hole 19. After the wire is inserted into the first through hole 2, it is clamped by the two groups of clamping plates 1 approaching each other. During the clamping process, the pointed heads 703 of multiple groups of anti-loosening nails 7 pierce the outer wall of the wire, effectively improving the clamping effect of the clamping plate 1 on the wire to prevent loosening;

[0034] In order to facilitate replacement of worn parts to increase the service life of the device, the inner wall of the jacket 6 is provided with multiple groups of fixing holes 17 with axis lines perpendicular to the axis line of the jacket 6 in an inner and outer through-through shape, and a step hole 18 is provided at one end of the fixing hole 17 close to the outer wall of the circumference of the jacket 6, and the straight rod 701 is slidably connected to the inner wall of the fixing hole 17, and the hanging platform 702 is fixedly connected to the end of the straight rod 701 away from the axis of the jacket 6 and the hanging platform 702 is slidably connected to the inner wall of the step hole 18. During maintenance, after removing the jacket 6, the passivation of the tip 703 of the anti-loosening nail 7 can be checked. If the passivation is severe, the common hard ejector rod can be used to eject the anti-loosening nail 7 from the fixing hole 17, and a new anti-loosening nail 7 can be replaced to maintain the anti-loosening performance of the anti-loosening structure and increase the service life of the device.

[0035] In order to improve the service life of the anti-loosening nails 7, the material of the multiple groups of anti-loosening nails 7 is SKD11, and the hardness of the multiple groups of anti-loosening nails 7 is HRC58°. After heat treatment, the SKD11 material has a certain hardness and is not very brittle. It can easily penetrate the outer wall of the wire and resist the pulling force of the wire after connection on the tip 703 of the anti-loosening nail 7, effectively improving the service life of the anti-loosening nail 7;

[0036] In order to facilitate the removal of the jacket 6, a magnetic attraction structure for adsorption and fixation is provided between the jacket 6 and the first card slot 11, and the magnetic attraction structure includes a first magnetic block 9 and a second magnetic block 10. A group of card blocks 8 are fixedly connected to the outer wall of the jacket 6 and located on both sides of the axis, and a group of second card slots 12 are respectively provided on both sides of the axis of the first card slot 11. The two groups of card blocks 8 are respectively engaged with the inner side walls of the two groups of second card slots 12. The first magnetic block 9 and the second magnetic block 10 are respectively arranged between the second card slot 12 and the side opposite to the card block 8 up and down, and the first fixed groove 13 and the second fixed groove 16 are respectively provided between the second card slot 12 and the side opposite to the card block 8 up and down. The first magnetic block 9 and the second magnetic block 10 are respectively fixedly connected to the inner side walls of the first fixed groove 13 and the second fixed groove 16, and the magnetic poles of the first magnetic block 9 and the second magnetic block 10 on the opposite sides are opposite. The jacket 6 is adsorbed and fixed by the first magnetic block 9 and the second magnetic block 10, and will not fall off easily during use, and can be conveniently removed during maintenance.

[0037] In order to improve the convenience of use, an elastic structure for separating the two groups of clamps 1 is provided between the opposite sides of the two groups of clamps 1, and the elastic structure includes multiple groups of springs 15. Multiple groups of mounting holes 14 are respectively provided between the opposite sides of the two groups of clamps 1 and on both sides of the axis of the two groups of first through holes 2. The multiple groups of springs 15 are respectively arranged between two groups of mounting holes 14 that are opposite to each other up and down. After all the locking screws 3 are loosened and screwed out a certain distance, the multiple groups of springs 15 can separate the two groups of clamps 1 through their own elasticity and keep them in a separated state, so as to facilitate the insertion and removal of the wires, without the need for manual separation by the staff, and convenient operation;

[0038] In order to avoid the two groups of clamping plates 1 from tilting and interfering with each other when one of the multiple groups of locking screws 3 is tightened separately, a guiding structure is also provided between the opposite sides of the two groups of clamping plates 1 for guiding the two groups of clamping plates 1 when they move relative to each other. The guiding structure includes multiple groups of guide columns 4, and multiple groups of guide holes 5 are provided on the inner wall of the lower group of the two clamping plates 1. The multiple groups of guide holes 5 are respectively arranged at one end of the three extension blocks 102 away from the base block 101. The multiple groups of guide columns 4 are all fixedly connected to the lower wall of the upper group of clamping plates in the two groups of clamping plates 1, and the multiple groups of guide columns 4 are respectively opposite to the multiple groups of guide holes 5 up and down, and the ends of the multiple groups of guide columns 4 away from the connection between the guide columns 4 and the clamping plates 1 are respectively slidably connected to the inner side walls of the multiple groups of guide holes 5. Through the guidance of the multiple groups of guide columns 4, the two groups of clamping plates 1 can remain parallel when approaching or moving away from each other, so as to avoid tilting and causing the locking screws 3 to interfere and become unable to be turned.

[0039] Working principle: The two groups of clamps 1 are locked by six groups of locking screws 3, and the T-shaped ends are all provided with a first through hole 2, so that the connecting device can realize the direct state of three groups of wires. After the wires are inserted into the first through hole 2, they are clamped by the two groups of clamps 1 approaching each other. During the clamping process, the pointed heads 703 of multiple groups of anti-loosening nails 7 pierce the outer wall of the wire, effectively improving the clamping effect of the clamp 1 on the wire to avoid loosening. During maintenance, after removing the jacket 6, the passivation of the pointed heads 703 of the anti-loosening nails 7 can be checked. If serious passivation is found, the common hard ejector can be used to eject the anti-loosening nails 7 from the fixing holes 17, and replace them with new anti-loosening nails 7 to maintain the anti-loosening performance of the anti-loosening structure and improve the service life of the device. The SKD11 material has good heat treatment performance after heat treatment. It has a certain hardness and is not very brittle. It can easily penetrate the outer wall of the wire and resist the pulling force of the wire on the pointed tip 703 of the anti-loosening nail 7 after connection, effectively improving the service life of the anti-loosening nail 7. The sleeve 6 is fixed by the first magnetic block 9 and the second magnetic block 10. It will not fall off easily during use and can be easily removed during maintenance. After all the locking screws 3 are loosened and screwed out a certain distance, the multiple sets of springs 15 can separate the two sets of splints 1 through their own elasticity and keep them in a separated state to facilitate the insertion and removal of the wire. Manual separation is not required by the staff, which is convenient for operation. Guided by the multiple sets of guide columns 4, the two sets of splints 1 can remain parallel when approaching or moving away from each other, avoiding tilting that causes the locking screws 3 to be interfered with and unable to be turned.

[0040] 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 fast-installed transmission overhead line tower grounding connection device, characterized in that: The clamping block comprises two groups of clamping plates (1) which are opposed to each other in an upper and lower direction. The two groups of clamping plates (1) are made of stainless steel. The clamping plate (1) is T-shaped when viewed from above. The clamping plate (1) comprises a base block (101) and three groups of extension blocks (102). The three groups of extension blocks (102) are respectively arranged on the front wall, left wall and right wall of the clamping plate (1). The upper and lower sides of the extension blocks (102) are respectively flush with the upper and lower sides of the base block (101). Two groups of first through holes (2) are arranged on opposite sides of the two groups of clamping blocks (1). The two groups of first through holes (2) are respectively located at the center of the front-to-back direction of the T-shaped horizontal side of the clamping plate (1) and the center of the left-to-right direction of the T-shaped vertical side. A first clamping groove (11) is arranged on a section of the inner wall of a through hole (2) within the range of the extension block (102); a jacket (6) is arranged on the inner wall of the first clamping groove (11); a second through hole (19) which is in communication with the first through hole (2) is arranged on the inner wall of the jacket (6); an anti-loosening structure for preventing loosening during clamping is arranged on the inner wall of the jacket (6); a magnetic attraction structure for adsorption and fixation is arranged between the jacket (6) and the first clamping groove (11); an elastic structure for separating the two groups of clamping plates (1) is arranged between opposite sides of the two groups of clamping plates (1); and a guide structure for guiding the two groups of clamping plates (1) when they move relative to each other is also arranged between opposite sides of the two groups of clamping plates (1); The anti-loosening structure comprises a plurality of groups of anti-loosening nails (7), the plurality of groups of anti-loosening nails (7) are all clamped on the inner wall of the jacket (6), and the axis extension lines of the plurality of groups of anti-loosening nails (7) are all perpendicular to the axis line of the jacket (6); The inner wall of the jacket (6) is provided with a plurality of fixing holes (17) whose axis lines are perpendicular to the axis line of the jacket (6) in an inner and outer through-through shape; one end of the fixing hole (17) close to the outer circumferential wall of the jacket (6) is provided with a step hole (18); the anti-loosening nail (7) is composed of a straight rod (701) and a hanging platform (702); the straight rod (701) is slidably connected to the inner wall of the fixing hole (17); the hanging platform (702) is fixedly connected to the end of the straight rod (701) away from the axis of the jacket (6) and the hanging platform (702) is slidably connected to the inner wall of the step hole (18); the end of the straight rod (701) away from the hanging platform (702) is provided with a pointed head (703); the end of the pointed head (703) away from the straight rod (701) passes through the fixing hole (17) and extends into the second through hole (19); The material of the plurality of groups of anti-loosening nails (7) is SKD11, and the hardness of the plurality of groups of anti-loosening nails (7) is HRC58°.

2. A quick-installed transmission overhead line tower grounding connection device according to claim 1, characterized in that: The magnetic attraction structure comprises a first magnetic block (9) and a second magnetic block (10); a group of clamping blocks (8) are fixedly connected to the outer wall of the jacket (6) and located on both sides of the axis; a group of second clamping grooves (12) are respectively arranged on both sides of the axis of the first clamping groove (11); the two groups of clamping blocks (8) are respectively clamped with the inner side walls of the two groups of second clamping grooves (12); the first magnetic block (9) and the second magnetic block (10) are respectively arranged between the second clamping groove (12) and the upper and lower opposite sides of the clamping block (8).

3. A quick-installed transmission overhead line tower grounding connection device according to claim 2, characterized in that: A first fixed groove (13) and a second fixed groove (16) are respectively arranged between the second clamping groove (12) and the clamping block (8) on the upper and lower sides thereof; the first magnetic block (9) and the second magnetic block (10) are respectively fixedly connected to the inner side walls of the first fixed groove (13) and the second fixed groove (16); and the magnetic poles of the first magnetic block (9) and the second magnetic block (10) on the opposite sides are opposite.

4. A quick-installed transmission overhead line tower grounding connection device according to claim 3, characterized in that: The elastic structure comprises a plurality of groups of springs (15), a plurality of groups of mounting holes (14) are respectively arranged between opposite sides of the two groups of clamping plates (1) and on both sides of the axis of the two groups of first through holes (2), and the plurality of groups of springs (15) are respectively arranged between two groups of mounting holes (14) that are opposite to each other in an upper and lower direction.

5. A fast-installed transmission overhead line tower grounding connection device according to claim 4, characterized in that: The guide structure comprises a plurality of groups of guide columns (4), a plurality of groups of guide holes (5) are arranged on the inner wall of the lower group of the two groups of clamps (1), the plurality of groups of guide holes (5) are respectively arranged at one end of the three groups of extension blocks (102) away from the base block (101), the plurality of groups of guide columns (4) are all fixedly connected to the lower wall of the upper group of the two groups of clamps (1), the plurality of groups of guide columns (4) are respectively opposite to the plurality of groups of guide holes (5) in upper and lower directions, and the ends of the plurality of groups of guide columns (4) away from the connection between the guide columns (4) and the clamps (1) are respectively slidably connected to the inner side walls of the plurality of groups of guide holes (5).

6. A fast-installed transmission overhead line tower grounding connection device according to claim 5, characterized in that: The two groups of clamping plates (1) are locked together by six groups of locking screws (3).

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