A lightning protection device that is easy to install and maintain

Abstract

The present invention relates to the field of lightning protection technology, and in particular to a lightning protection device that is easy to install and maintain; it comprises a support plate and a lightning arrester installed on a cross arm, a positioning hole is opened on the top plate of the cross arm, vertical side plates are symmetrically arranged at the bottom end of the top plate, the lightning arrester is fixedly installed on the top of the support plate, a positioning rod is fixed at the bottom of the support plate, the positioning rod can be rotatably inserted into the positioning hole, a first spring is installed between the cross arm and the support plate, two locking components are arranged along a circumferential array on both sides of the support plate, and the locking component comprises a moving unit and a lifting unit; when the support plate is rotated to make the locking component collide with the cross arm, the vertical side plate of the cross arm squeezes the moving unit to cause the lifting unit to rise, and the bottom of the lifting unit forms an abutment locking with the inner side of the vertical side plate of the cross arm; the lightning protection device can be quickly and efficiently fixed on a 10kV overhead line rack, which is convenient for rapid installation or disassembly and maintenance, and ensures the personal safety of operators; the lightning protection device has a shock absorbing function, improves safety and stability, and prolongs service life.

Description

Technical Field

[0001] The invention relates to the technical field of lightning protection, and in particular to a lightning protection device which is easy to install and maintain. Background Art

[0002] 10kV overhead distribution lines are widely distributed, long, and located in complex terrain. The insulation level of 10kV distribution lines is low, and lightning overvoltage can cause insulators to flash over, forming power frequency follow-current in the lightning flashover channel and burning the conductors. The main reason for line breakage is the formation of power frequency follow-current in the lightning flashover channel. Currently, lightning arresters are installed to prevent lines from being damaged by lightning.

[0003] A Chinese patent document (publication number: CN201498289U) discloses a 10kV pillar lightning arrester. The utility model discloses a 10kV pillar lightning arrester, which relates to a lightning protection device. The utility model comprises a wire pressing block (1), an insulating cylinder (2), a composite jacket (3) and a steel foot (4); the wire pressing block (1), the insulating cylinder (2) and the steel foot (4) are connected in sequence from top to bottom; the composite jacket (3) is die-cast on the outer surface of the insulating cylinder (2). The structure of the insulating cylinder (2) is as follows: a spring (2.4) and a plurality of zinc oxide valve sheets (2.1) connected from top to bottom are placed in a cylinder (2.5); the inner wall of the cylinder (2.5) is provided with internal threads (2.3) at its upper and lower ends, and a plurality of small holes (2.2) corresponding to the positions of the plurality of zinc oxide valve sheets (2.1) are provided in the middle. The utility model integrates the arrester and the support into one, is suitable for preventing 10kV overhead lines from breaking due to lightning strikes and reducing the lightning tripping rate of the lines, and is practical and economical.

[0004] In the prior art, the installation or disassembly and maintenance of the lightning arrester takes a long time and has low efficiency; the lightning arrester shakes severely when subjected to vibration, has a short service life, and has great safety hazards. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a lightning arrester that is easy to install and maintain. The lightning arrester can be quickly and efficiently fixed on a 10kV overhead line rack, which is convenient for rapid installation or disassembly and maintenance, thereby ensuring the personal safety of operators. The lightning arrester has a shock-absorbing function, thereby improving the safety and stability of the device and extending its service life.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A lightning arrester which is easy to install and maintain, comprises a support plate and a lightning arrester installed on a cross arm, a positioning hole is opened on the top plate of the cross arm, vertical side plates are symmetrically arranged at the bottom end of the top plate, the lightning arrester is fixedly installed on the top of the support plate, a positioning rod is fixed at the bottom of the support plate, the positioning rod can be rotatably inserted into the positioning hole, a first spring is installed between the cross arm and the support plate, two locking assemblies are arranged along a circumferential array on both sides of the support plate, and the locking assembly comprises a moving unit and a lifting unit; when the support plate is rotated to make the locking assembly collide with the cross arm, the vertical side plate of the cross arm squeezes the moving unit to cause the lifting unit to rise, and the bottom of the lifting unit forms an abutment and locking with the inner side of the vertical side plate of the cross arm.

[0008] As a preferred technical solution of the present invention, the locking assembly also includes a lock body, the top end of the lock body is fixed to the bottom end side of the support plate, and a through slot is horizontally opened on the upper part of the lock body. When the locking assembly contacts the cross arm, the axial direction of the through slot is perpendicular to the axial direction of the cross arm, and the movable unit is slidably installed inside the through slot; the lock body extends toward the through slot outlet to form a convex step, and the through slot outlet is located at the end away from the cross arm; the top of the convex step is located below the through slot, and two slideways are opened from top to bottom on the top of the convex step, and the slideways are located on both sides of the lock body through slot; the lifting unit is slidably passed through the slideway of the convex step.

[0009] As a preferred technical solution of the present invention, the movable unit includes a push block, an inclined surface is arranged at one end of the push block adjacent to the through slot outlet, a limiting groove is arranged on the push block, and the limiting groove is arranged perpendicular to the axial direction of the through slot; a guide groove is arranged on one side of the limiting groove, the guide groove is connected with the limiting groove, and the guide groove is arranged upwardly inclined toward the through slot outlet direction; baffles are symmetrically fixed on both sides of the push block, a second spring is installed on the baffle along the through slot outlet direction, the baffle extends to both sides to form a protrusion, and the protrusion is slidably installed in the sliding groove of the lock body.

[0010] As a preferred technical solution of the present invention, the lifting unit includes a base plate and two guide rods, the guide rods are slidably arranged in the slideway, the top end of the guide rod is connected to the cross bar, the two ends of the cross bar are respectively connected to tension springs, and the other end of the tension spring is fixedly connected to the lower part of the side wall of the convex step; the bottom end of the guide rod is fixedly connected to the base plate, and a buckle plate is provided at one end of the base plate away from the guide rod, and the buckle plate can be abutted and locked with the inner side of the vertical side plate of the cross arm.

[0011] As a preferred technical solution of the present invention, a wedge is arranged on the inner side of the gusset plate, and anti-slip grooves are arranged on the wedge.

[0012] As a preferred technical solution of the present invention, a rotating hole is arranged on the bottom plate, the rotating hole is located at an end away from the guide rod, a fan-shaped hole is opened on one side of the rotating hole, and the fan-shaped hole is connected with the rotating hole; a rotating shaft is fixedly installed at the bottom of the buckle plate, a limit stop is fixed at the bottom of the rotating shaft, the rotating shaft is installed in the rotating hole through a bearing, and the limit stop is located inside the fan-shaped hole.

[0013] As a preferred technical solution of the present invention, a collision block is arranged on the push block, the collision block is located at a side away from the through slot outlet, and a universal connector is arranged between the collision block and the push block.

[0014] As a preferred technical solution of the present invention, a through hole is opened on the top of the push block, the through hole is located above the guide groove, a countersunk hole is opened on the through hole, and a limiting wedge block is installed in the through hole; the inclined surface of the limiting wedge block faces the limiting groove, and the limiting wedge block limits the movement of the cross bar inside the guide groove.

[0015] As a preferred technical solution of the present invention, upward traction rings are fixedly provided at both ends of the cross bar.

[0016] As a preferred technical solution of the present invention, a method for installing and disassembling the lightning protection device using the lightning protection device comprises the following steps:

[0017] (1) Installation:

[0018] A1. Insert the positioning rod at the bottom of the support plate with the arrester installed into the positioning hole of the cross arm;

[0019] A2. Hold the diagonal part of the support plate with both hands, press down and rotate the support plate at the same time, squeeze the push blocks of the two locking components and the vertical side plates of the cross arm, so that the push blocks move forward and extend out of the lock body. The inclined surface of the push block lifts the cross bar, and the push block continues to move forward so that the cross bar falls into the limit groove;

[0020] A3. Complete the installation: release the force on the support plate, and the push block moves backward under the action of the second spring, so that the cross bar is located inside the guide groove, and the lower part of the limiting wedge falls into the guide groove to limit the cross bar, and the installation is completed;

[0021] (2) Disassembly:

[0022] B1. Take out the limiting wedges of the two locking components, hold the diagonal parts of the support plate with both hands, press down and rotate the support plate at the same time, squeeze the push blocks of the two locking components with the vertical side plates of the crossbar, and move the push blocks toward the outlet of the through slot, so that the position of the limiting slot coincides with the position of the crossbar;

[0023] B2. Lift the traction ring upwards and lift the upper crossbar of the traction ring above the top of the push block;

[0024] B3. Release the force on the support plate, and the push block retracts into the lock body under the reset force of the second spring. Release the traction ring, and finally remove the support plate and lightning arrester from the crossarm.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. During the installation process of the device of the present invention, the positioning rod at the bottom of the support plate with the lightning arrester installed is inserted into the positioning hole. By rotating the support plate, the locking components arranged in the array on both sides of the bottom of the support plate are respectively fastened with the vertical side plates on both sides of the cross arm, and the installation is quickly completed without the need for additional components or tools. The operation is simple. The force that forms a tight connection between the locking component and the support plate and the cross arm comes from the elastic supporting force inside the device. The elastic supporting force has a buffering effect, which can reduce the vibration of the lightning arrester, slow down the shaking of the component connection, and improve the stability of the connection. The locking component not only quickly tightens the installation of the lightning arrester, but also enhances the buffering and shock absorption effect. It has a simple structure, high installation efficiency and good stability.

[0027] 2. In the present invention, when the device is installed, when the rotating support plate makes the locking assembly contact and squeeze the vertical side plate of the cross arm, the push block of the locking assembly is driven, and the push block compresses the second spring and then moves toward the cross bar, and the inclined surface of the push block is inserted into the bottom of the cross bar to lift the cross bar, and the cross bar drives the buckle plate to rise upward through the guide rod and the bottom plate; when the push block moves outward, the cross bar falls into the limiting groove of the push block, and the push block moves in the opposite direction again, so that the cross bar is located inside the guide groove; the limiting wedge block falls to prevent the cross bar from moving outward, and the cross bar is lifted and raised by the inclined guide groove, at this time, the buckle plate abuts against the inner side of the vertical side plate of the cross arm, and the push block abuts against the outer side of the vertical side plate of the cross arm, forming a locked state;

[0028] When disassembling the device, take out the limiting wedge blocks of the two locking assemblies, rotate the support plate to make the push block squeeze the vertical side plate of the cross arm, drive the push block to move toward the outlet of the through slot, make the position of the limiting slot coincide with the position of the cross bar, then lift the traction ring upwards to lift the cross bar above the top of the push block. At this time, cancel the force on the support plate, and the push block retracts into the lock body under the restoring force of the second spring; release the traction ring, and finally remove the support plate and lightning arrester from the cross arm.

[0029] In the present invention, two locking components are arranged in an array, and the two have a centrally symmetrical structure to form a fixed state with symmetrical forces. The structure is stable, no additional equipment or tools are required, and the installation and disassembly are quick; the limiting wedge block is arranged above the guide groove to form a one-way channel of the guide groove. When the cross bar enters the guide groove, the limiting wedge block is squeezed and lifted. After the cross bar enters the guide groove, the limiting wedge block falls due to gravity to prevent the cross bar from moving outward, thereby automatically forming a stable locking structure.

[0030] 3. In the present invention, when the device is in a locked state, under the resetting force of the second spring, the push block abuts against the outer side of the vertical side plate of the cross arm, the buckle plate abuts against the inner side of the vertical side plate of the cross arm, and the two locking components arranged along the circumferential array form a locked state with the cross arm; wherein, the locking component and the support plate and the cross arm form a tightly buckled structure which is a non-rigid connection, and when subjected to vibration, it avoids stress concentration between the connecting parts, and the structure is fragile, can play a role in buffering and absorbing energy, can reduce the vibration of the arrester, improve the stability of the connection, and ensure the safety of the equipment.

[0031] When the device of the present invention is fixedly installed with the cross arm, the collision block is fitted and abutted against the outer side of the vertical side plate of the cross arm. When subjected to vibration, the universal connector is conducive to changing the angle of the collision block and reducing the energy absorbed by the vibration. The cooperation between the universal connector and the collision block also plays a role in reducing vibration. The gusset plate and the bottom plate are rotatably connected through a rotating shaft. The gusset plate is fitted and abutted against the inner side of the vertical side plate of the cross arm. When subjected to vibration, the gusset plate can change its angle to reduce the absorption of vibration and play a shock-absorbing role. The gusset plate and the collision block that can change their angle cooperate with the elastic support force of the device to further relieve vibration and enhance stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a three-dimensional schematic diagram of the overall installation structure of the device of the present invention;

[0033] Figure 2 It is a three-dimensional schematic diagram of the installation position of the device of the present invention and the cross arm;

[0034] Figure 3 It is a partial cross-sectional perspective schematic diagram of the lock body of the device of the present invention;

[0035] Figure 4 It is a schematic diagram of the lock body cross section, the moving unit and the lifting unit separation structure of the device of the present invention;

[0036] Figure 5 It is a three-dimensional schematic diagram of a mobile unit of the device of the present invention;

[0037] Figure 6 It is a three-dimensional schematic diagram of the lifting unit and the gusset plate separation structure of the device of the present invention;

[0038] In the figure: 11, lightning arrester; 12, cross arm; 13, support plate; 14, lock body; 15, bottom plate; 16, push block; 17, tension spring; 18, guide rod; 19, buckle plate; 20, locking assembly; 21, cross bar; 22, positioning rod; 23, positioning hole; 24, first spring; 25, collision block; 26, baffle; 27, second spring; 28, limiting groove; 29, guide groove; 30, slide groove; 31, limiting wedge block; 33, through hole; 34, slideway; 35, rotating shaft; 36, limiting stop; 37, bearing; 38, rotating hole; 39, fan-shaped hole. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0040] Contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0041] Figure 1-Figure 6 As shown in the figure, a lightning protection device which is easy to install and maintain comprises a support plate 13 and a lightning arrester 11 installed on a cross arm 12, a positioning hole 23 is opened on the top plate of the cross arm 12, and vertical side plates are symmetrically arranged at the bottom end of the top plate, the lightning arrester 11 is fixedly installed on the top of the support plate 13, a positioning rod 22 is fixed at the bottom of the support plate 13, and the positioning rod 22 can be rotatably inserted into the positioning hole 23, a first spring 24 is installed between the cross arm 12 and the support plate 13, and two locking components 20 are arranged along a circumferential array on both sides of the support plate 13, and the locking components 20 include a moving unit and a lifting unit; when the support plate 13 is rotated to make the locking component 20 collide with the cross arm 12, the vertical side plate of the cross arm 12 squeezes the moving unit to cause the lifting unit to rise, and the bottom of the lifting unit is abutted and locked with the inner side of the vertical side plate of the cross arm 12.

[0042] The cross arm 12 includes a horizontally arranged top plate and two symmetrically arranged vertical side plates, and the vertical side plates are respectively vertically connected to the two ends of the top plate; the cross arm 12 is a channel steel structure or a U-shaped steel structure, and a positioning hole 23 is provided on the top of the cross arm 12, which is convenient for the positioning rod 22 to be inserted into the positioning hole 23 and can satisfy the rotation of the positioning rod 22 in the positioning hole 23. The cross arm 12 is fixed on the 10kv pole and is used to fix and install the lightning arrester.

[0043] Figure 2 As shown in , two locking components 20 are arranged along a circumferential array on both sides of the support plate 13;

[0044] The two locking components 20 are arranged along a circumferential array, that is, the position of one of the locking components 20 after rotating 180° is the same as the position of the other locking component.

[0045] The positioning rod 22 is connected to the bottom center of the support plate 13 by welding.

[0046] In the present invention, when installing the lightning arrester, the first spring is fixedly installed on the outer periphery of the positioning hole 23, the support plate 13 connected with the lightning arrester 11 is placed above the cross arm 12, and then the positioning rod 22 is inserted into the positioning hole 23. At this time, the support plate 13 and the cross arm 12 are in a cross state on the vertical plane; the staff puts both hands on the diagonal of the support plate 13, presses downward in the direction of the cross arm 12, so that the first spring 24 is in a compressed state, and at the same time rotates the support plate 13 to make the locking assembly 20 approach the vertical side plate of the cross arm 12 to form an extrusion, and the vertical side plate of the cross arm 12 squeezes the moving unit, causing the moving unit to move horizontally. At this time, one end of the bottom of the lifting unit enters between the two vertical side plates of the cross arm 12;

[0047] The movable unit has a wedge-shaped head with an inclined surface. The wedge-shaped head extends into the bottom of the lifting unit to lift the lifting unit. The bottoms of the lifting units on both sides are lifted upward and abut against the inner sides of the vertical side panels adjacent to the cross arm 12. The two groups of locking components arranged along the circumferential array form a stable locking state with the cross arm 12.

[0048] During the installation process, by simultaneously pressing down and rotating the support plate 13, the locking components on both sides of the bottom of the support plate 13 are respectively fastened to the vertical side plates on both sides of the cross arm 12 to complete the installation without the need for additional parts or tools. The operation is simple and the installation is efficient.

[0049] Furthermore, the locking assembly 20 also includes a lock body 14, the top end of the lock body 14 is fixed to the bottom side of the support plate 13, and a through groove is horizontally opened on the upper part of the lock body 14. When the locking assembly 20 contacts the cross arm 12, the axial direction of the through groove is perpendicular to the axial direction of the cross arm 12, and the movable unit is slidably installed inside the through groove; the lock body 14 extends toward the through groove outlet to form a convex step, and the through groove outlet is located at the end away from the cross arm 12; the top of the convex step is located below the through groove, and two slideways 34 are opened from top to bottom on the top of the convex step, and the slideways 34 are located on both sides of the through groove of the lock body 14; the lifting unit is slidably passed through the slideway 34 of the convex step.

[0050] Figure 1 and Figure 2As shown, the top of the lock body 14 is fixedly mounted on the bottom side of the support plate 13 by welding, and the positions of the two lock bodies 14 are arranged in a circular array. The two lock bodies 14 are respectively located at the diagonals of the support plate 13, and the two diagonal lock bodies 14 are tightly fastened and fixedly connected to the cross arm 12 to form a stable state. The two locking components are arranged in an array to form a symmetrical structure with a center of the circle, which has a symmetrical force and is stable and strong in installation.

[0051] When the support plate 13 rotates to squeeze or collide with the cross arm 12, the two lock bodies 14 rotate with the support plate 13, and the lock bodies 14 rotate with the moving unit and the lifting unit. At the same time, the moving unit squeezes or collides with the cross arm 12. At this time, the buckle plate 19 at the bottom of the lifting unit is located between the two vertical side plates of the cross arm 12.

[0052] Furthermore, the movable unit includes a push block 16, and a slope is set at one end of the push block 16 adjacent to the through slot outlet. A limit groove 28 is set on the push block 16, and the limit groove 28 is set perpendicular to the axial direction of the through slot; a guide groove 29 is set on one side of the limit groove 28, and the guide groove 29 is located on the side close to the through slot outlet, and the guide groove 29 is connected with the limit groove 28, and the guide groove 29 is set upwardly inclined toward the through slot outlet; baffles 26 are symmetrically fixed on both sides of the push block 16, and a second spring 27 is installed on the baffle 26 along the through slot outlet direction, and the baffle 26 extends to both sides to form a protrusion, and the protrusion is slidably installed in the slide groove 30 of the lock body 14.

[0053] Figure 3 , Figure 4 and Figure 5 As shown in the figure, the push block 16 slides horizontally in the through slot of the lock body 14, and the second springs 27 are respectively installed on both sides of the push block 16. When the push block 16 collides with the cross arm 12, the push block 16 compresses the second spring 27 and extends toward the through slot outlet;

[0054] After the push block 16 extends out of the lock body 14, the inclined surface of the push block 16 is inserted from the bottom of the cross bar 21, and the cross bar 21 falls into the limit groove 28 as the push block 16 continues to move forward; under the reset action of the second spring 27, the push block 16 moves in the direction away from the through groove outlet (the push block 16 moves in the opposite direction), and the cross bar 21 enters the guide groove 29 and moves to the deep end; the cross bar 21 gradually rises in the process of moving toward the deep end of the guide groove 29, driving the lifting assembly to move upward, and at the same time driving the buckle plate 19 at the bottom of the lifting assembly to move in the direction close to the vertical side plate (at this time, the buckle plate 19 is located between the two vertical side plates, and the vertical side plate being approached is adjacent to the lock body 14), and the buckle plate 19 moves upward at the same time, and the buckle plate 19 abuts and locks with the vertical side plate of the cross arm 12.

[0055] Setting the line of the guide groove 29 to be tilted upward is conducive to raising the height of the lifting assembly and the buckle plate 19; setting the line of the guide groove 29 to be extended is conducive to increasing the reset stroke of the push block 16 under the action of the second spring 27, thereby shortening the distance between the buckle plate 19 and the vertical side plate, and at the same time increasing the squeezing force of the second spring 27 and the push block 16 on the vertical side plate, thereby improving the stability of the device installation.

[0056] Furthermore, the lifting unit includes a base plate 15 and two guide rods 18, the guide rod 18 is slidably arranged in the slideway 34, the top end of the guide rod 18 is connected to the cross bar 21, the two ends of the cross bar 21 are respectively connected to the tension spring 17, and the other end of the tension spring 17 is fixedly connected to the lower part of the side wall of the convex step; the bottom end of the guide rod 18 is fixedly connected to the base plate 15, and a buckle plate 19 is provided at one end of the base plate 15 away from the guide rod 18, and the buckle plate 19 can be abutted and locked with the inner side of the vertical side plate of the cross arm 12.

[0057] Among them, the outer periphery of the cross bar 21 is sleeved with a rotating cylinder to reduce friction and facilitate the up and down displacement of the cross bar 21. It is also possible to connect the two ends of the cross bar 21 to the ends of the guide rod 18 through bearings to reduce friction.

[0058] Figure 3 and Figure 4 As shown in the figure, when the inclined surface of the push block 16 is inserted into the bottom of the cross bar 21, the cross bar 21 rises with the inclined surface. When the limiting groove 28 of the push block 16 moves to the bottom of the cross bar 21, under the action of the tension spring 17, the cross bar 21 falls into the limiting groove 28. At this time, the push block 16 moves under the reset action of the second spring 27 (the push block 16 moves in the direction away from the through groove outlet), and the push block 16 moves so that the cross bar 21 is located inside the guide groove 29.

[0059] When the push block 16 pushes the cross bar 21, the cross bar 21 moves up and down under the action of the guide rod 18 and the tension spring 17, driving the bottom plate 15 and the gusset plate 19 to move up and down together. In the process of the gusset plate 19 moving upward, it is further close to the vertical side plate of the cross arm 12, which can increase the abutment area and enhance the stability of the locking.

[0060] When unlocking, the pinch plate 19 needs to be moved downward from the locked position, and the downward displacement of the cross bar 21 drives the bottom plate 15 and the pinch plate 19 to move downward together.

[0061] Furthermore, a wedge is provided on the inner side of the buckle plate 19, and anti-slip grooves are provided on the wedge.

[0062] Figure 3 , Figure 4As shown in , by adjusting the slope of the wedge inside the gusset plate 19, the contact distance between the gusset plate 19 and the vertical side plate of the cross arm 12 can be compensated; anti-slip grooves are provided to increase friction and make the contact between the gusset plate 19 and the vertical side plate more stable.

[0063] During the installation process, when the first spring 24 disposed between the support plate 13 and the cross arm 12 is reset and stretched, the support plate 13 is lifted, thereby increasing the lifting space of the gusset plate 19 and increasing the upward compensation distance of the gusset plate 19;

[0064] At the same time, the first spring 24 installed at the bottom of the support plate 13 also plays a role in alleviating shaking and absorbing vibration, thereby protecting the stability of the equipment and extending its service life.

[0065] The wedge inside the adjusting buckle plate 19 is made of carbon black filled rubber material, which has good strength and friction.

[0066] Furthermore, a rotating hole 38 is provided on the bottom plate 15, and the rotating hole 38 is located at an end away from the guide rod 18. A fan-shaped hole 39 is opened on one side of the rotating hole 38, and the fan-shaped hole 39 is connected to the rotating hole 38; a rotating shaft 35 is fixedly installed at the bottom of the buckle plate 19, and a limit stopper 36 is fixedly provided at the bottom of the rotating shaft 35. The rotating shaft 35 is installed in the rotating hole 38 through a bearing 37, and the limit stopper 36 is located inside the fan-shaped hole 39.

[0067] Figure 6 As shown in the figure, the gusset plate 19 is rotatably arranged to meet the requirements that the gusset plate 19 and the vertical side plate of the cross arm 12 are installed in a close fit under different angles, thereby increasing the friction force and improving the stability of the device installation.

[0068] Furthermore, a collision block 25 is disposed on the push block 16 , and the collision block 25 is located at a side away from the through slot outlet, and a universal connector is disposed between the collision block 25 and the push block 16 .

[0069] Figure 5 As shown in the figure, during the process of displacement of the push block 16 in contact with the vertical side plate of the cross arm 12, the push block 16 will change different angles. A universal connector is set between the impact block 25 and the push block 16 to meet the requirements of multiple angles, so that the force on the push block 16 is more uniform, the equipment runs stably, has good adaptability, and has a long service life.

[0070] When the device of the present invention is fixedly installed with the cross arm 12, the impact block 25 is in contact with the vertical side plate of the cross arm 12. When subjected to vibration, the universal connector is conducive to changing the angle of the impact block 25 and reducing the energy absorbed by the vibration. The cooperation between the universal connector and the impact block 25 also plays a role in reducing vibration.

[0071] Furthermore, a through hole 33 is provided at the top of the push block 16, and the through hole 33 is located above the guide groove 29. A countersunk hole is provided on the through hole 33, and a limiting wedge block 31 is installed in the through hole 33; the inclined surface of the limiting wedge block 31 faces the limiting groove 28, and the limiting wedge block 31 limits the movement of the cross bar 21 inside the guide groove 29.

[0072] Figure 5 As shown in , the countersunk hole is set without affecting the movement of the components on the top of the push block 16.

[0073] When the cross bar 21 moves from the limiting groove 28 to the guide groove 29, the limiting wedge block 31 is lifted up and then falls down, which does not affect the cross bar 21 entering the guide groove 29; when the limiting wedge block 31 falls down, the limiting wedge block 31 limits the cross bar 21 inside the guide groove 29, preventing the cross bar 21 from entering the limiting groove 28, and the limiting wedge block 31 limits the guide groove 29 to a one-way channel.

[0074] The position of the limiting wedge block 31 is kept at a certain distance from the deepest part of the guide groove 29;

[0075] When the cross bar 21 is located inside the guide groove 29 and is limited by the limiting wedge block 31, the cross bar 21 is prevented from moving out of the limiting groove 28, but at this time the cross bar 21 has a certain displacement space inside the limiting groove 28. When the push block 16 is squeezed by the vertical side plate of the cross arm 12 at this time, the push block 16 compresses the second spring 27 and then moves a distance toward the through groove outlet, forming an elastic buffer area, which has a certain shock-absorbing effect on the device.

[0076] When the device is in the locked state, under the reset action of the second spring 27, the push block 16 abuts against the outer side of the vertical side plate of the cross arm 12, the buckle plate 19 abuts against the inner side of the vertical side plate of the cross arm 12, and the two locking components arranged along the circumferential array form a locked state with the cross arm 12;

[0077] Among them, the force that forms a tight lock between the locking component and the support plate 13 and the cross arm 12 comes from the elastic supporting force inside the device. The elastic supporting force has a buffering effect, which can reduce the vibration of the lightning arrester 11, reduce the shaking of the component connection, and improve the stability of the connection; the locking component can quickly tighten the installation of the lightning arrester while also enhancing the buffering and shock absorption effect. It has a simple structure, high installation efficiency and good stability.

[0078] A groove is formed on the top of the limiting wedge block 31, and a rotatable handle is arranged in the groove, which is convenient for manually lifting the limiting wedge block 31 when in use; when not in use, the handle is rotated into the groove without affecting the operation of the upper components.

[0079] Furthermore, both ends of the cross bar 21 are fixedly connected to upward traction rings (not shown in the figure).

[0080] The two ends of the traction ring are located on the cross bar 21 close to the tension spring 17, and the connection of the traction ring is located on both sides of the through slot outlet.

[0081] The traction ring is used to lift the cross bar 21 upwards. When the cross bar 21 needs to be moved upwards out of the limiting groove 28, the traction ring is pulled upwards to move the cross bar 21 above the top of the push block 16.

[0082] The setting of the traction ring does not affect the movement of the cross bar 21 in the guide groove 29, and there is no interference between them.

[0083] Furthermore, the method for installing, disassembling and repairing the lightning protection device comprises the following steps:

[0084] (1) Installation:

[0085] A1. Insert the positioning rod 22 at the bottom of the support plate 13 on which the lightning arrester 11 is installed into the positioning hole 23 of the cross arm 12;

[0086] A2. Hold the diagonal part of the support plate 13, press down and rotate the support plate 13 at the same time, squeeze the push blocks 16 of the two locking components close to the vertical side plates of the cross arm 12, so that the push blocks 16 move forward and extend out of the lock body 14, and the inclined surface of the push block 16 lifts the cross bar 21. Continue to apply force to drive the push block 16 to continue to move forward so that the cross bar 21 falls into the limit groove 28;

[0087] A3. Release the force on the support plate 13. The push block 16 moves backward under the action of the second spring 27, so that the cross bar 21 is located inside the guide groove 29. The lower part of the limiting wedge block 31 falls into the guide groove 29 to limit the cross bar 21. The installation is completed.

[0088] (2) Disassembly:

[0089] B1. Take out the limiting wedges 31 of the two locking components, hold the diagonal part of the support plate 13, press down and rotate the support plate 13 at the same time, squeeze the push blocks 16 of the two locking components close to the vertical side plates of the cross arm 12, and drive the push blocks 16 to move toward the outlet of the through groove, so that the position of the limiting groove 28 coincides with the position of the cross bar 21;

[0090] B2. Lift the traction ring upwards and lift the upper cross bar 21 of the traction ring to above the top of the push block 16;

[0091] B3. Release the force on the support plate 13, and the push block 16 retracts into the lock body 14 under the reset force of the second spring 27, loosens the traction ring, and finally removes the support plate 13 and the lightning arrester 11 from the cross arm 12.

[0092] The present invention illustrates the technical concept of the present invention through the above embodiments, but the present invention is not limited to the above embodiments, that is, it does not mean that the present invention must rely on the above embodiments to be implemented. Those skilled in the art should understand that the relevant improvements to the present invention fall within the protection scope and disclosure scope of the present invention.

Claims

1. A lightning arrester that is easy to install and maintain, comprising a support plate (13) and a lightning arrester (11) mounted on a cross arm (12), a positioning hole (23) being provided on the top plate of the cross arm (12), and vertical side plates being symmetrically arranged at the bottom end of the top plate, characterized in that: The lightning arrester (11) is fixedly mounted on the top of the support plate (13), a positioning rod (22) is fixed at the bottom of the support plate (13), the positioning rod (22) is rotatably inserted into the positioning hole (23), a first spring (24) is installed between the cross arm (12) and the support plate (13), two locking components (20) are arranged along a circumferential array on both sides of the support plate (13), and the locking components (20) include a moving unit and a lifting unit; when the support plate (13) is rotated to make the locking components (20) contact and squeeze the cross arm (12), the moving unit is driven to move and the lifting unit is driven to rise, and the bottom of the lifting unit is abutted and locked with the inner side of the vertical side plate of the cross arm (12); The locking assembly (20) further comprises a lock body (14), the top end of the lock body (14) being fixedly arranged on the bottom side of the support plate (13), the upper part of the lock body (14) being horizontally provided with a through slot, when the locking assembly (20) is locked with the cross arm (12), the axial direction of the through slot is perpendicular to the axial direction of the cross arm (12), and the movable unit is slidably installed inside the through slot; the lock body (14) extends toward the through slot outlet to form a convex step, and the through slot outlet is located at an end away from the cross arm (12); the top of the convex step is located below the through slot, and two slideways (34) are provided on the top of the convex step from top to bottom, and the slideways (34) are located on both sides of the through slot of the lock body (14); the lifting unit is slidably arranged in the slideway (34) of the convex step; The moving unit comprises a push block (16), an inclined surface is arranged at one end of the push block (16) adjacent to the through slot outlet, a limiting groove (28) is arranged on the push block (16), and the limiting groove (28) is arranged perpendicular to the axial direction of the through slot; a guide groove (29) is arranged on one side of the limiting groove (28), the guide groove (29) is communicated with the limiting groove (28), and the guide groove (29) is arranged to be inclined upward toward the through slot outlet; baffles (26) are symmetrically fixed on both sides of the push block (16), a second spring (27) is installed on the baffle (26) along the through slot outlet direction, the baffle (26) extends to both sides to form a protrusion, and the protrusion is slidably installed in a slide groove (30) of the lock body (14).

2. The lightning protection device that is easy to install and maintain according to claim 1 is characterized in that: The lifting unit comprises a bottom plate (15) and two guide rods (18), wherein the guide rods (18) are slidably arranged in the slideway (34), the top end of the guide rods (18) are connected to the cross rod (21), the two ends of the cross rod (21) are respectively connected to tension springs (17), and the other end of the tension spring (17) is fixedly connected to the lower part of the side wall of the convex step; the bottom end of the guide rod (18) is fixedly connected to the bottom plate (15), and a buckle plate (19) is provided at one end of the bottom plate (15) away from the guide rod (18), and the buckle plate (19) can be abutted and locked with the inner side of the vertical side plate of the cross arm (12).

3. The lightning protection device that is easy to install and maintain according to claim 2 is characterized in that: A wedge is arranged on the inner side of the buckle plate (19), and anti-slip grooves are arranged on the wedge.

4. The lightning protection device that is easy to install and maintain according to claim 3 is characterized in that: A rotating hole (38) is provided on the bottom plate (15), the rotating hole (38) is located at an end away from the guide rod (18), a fan-shaped hole (39) is opened on one side of the rotating hole (38), and the fan-shaped hole (39) is communicated with the rotating hole (38); a rotating shaft (35) is fixedly installed at the bottom of the buckle plate (19), a limit stopper (36) is fixedly provided at the bottom of the rotating shaft (35), the rotating shaft (35) is rotatably installed in the rotating hole (38) through a bearing (37), and the limit stopper (36) is located inside the fan-shaped hole (39).

5. The lightning protection device that is easy to install and maintain according to claim 1 is characterized in that: A collision block (25) is arranged on the push block (16), the collision block (25) is located at a side away from the through slot outlet, and a universal connector is arranged between the collision block (25) and the push block (16).

6. The lightning protection device that is easy to install and maintain according to claim 1 is characterized in that: A through hole (33) is formed at the top of the push block (16), the through hole (33) is located above the guide groove (29), a countersunk hole is formed on the through hole (33), and a limiting wedge block (31) is installed in the through hole (33); the inclined surface of the limiting wedge block (31) faces the limiting groove (28), and the limiting wedge block (31) limits the cross bar (21) inside the guide groove (29) from moving out.

7. The lightning protection device that is easy to install and maintain according to claim 2 is characterized in that: Both ends of the crossbar (21) are fixedly provided with upward traction rings.

8. A method for installing and disassembling the lightning protection device according to any one of claims 1 to 7, characterized in that: The following steps are involved: (1) Installation: A1. Insert the positioning rod (22) at the bottom of the support plate (13) on which the lightning arrester (11) is installed into the positioning hole (23) of the cross arm (12); A2. Hold the diagonal part of the support plate (13), press down and rotate the support plate (13) at the same time, so that the push blocks (16) of the two locking components are close to the vertical side plates of the cross arm (12) to form an extrusion, so that the push blocks (16) move forward and extend out of the lock body (14), and the inclined surface of the push block (16) lifts the cross bar (21), and continue to apply force to drive the push block (16) to continue to move forward so that the cross bar (21) falls into the limit groove (28); A3. Release the force on the support plate (13), and the push block (16) moves backward under the action of the second spring (27), so that the cross bar (21) is located inside the guide groove (29), and the lower part of the limiting wedge block (31) falls into the guide groove (29) to limit the cross bar (21), and the installation is completed; (2) Disassembly: B1. Take out the limiting wedge blocks (31) of the two locking components, hold the diagonal parts of the support plate (13), press down and rotate the support plate (13) at the same time, squeeze the push blocks (16) of the two locking components close to the vertical side plates of the cross arm (12), and drive the push blocks (16) to move toward the outlet of the through groove, so that the position of the limiting groove (28) coincides with the position of the cross bar (21); B2. Lift the traction ring upwards and lift the upper cross bar (21) of the traction ring to above the top of the push block (16); B3. Release the force on the support plate (13), and the push block (16) retracts into the lock body (14) under the reset force of the second spring (27), loosen the traction ring, and finally remove the support plate (13) and the lightning arrester (11) from the cross arm (12).

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