Multi-cavity arc blowing type lightning protection insulating cross arm

Abstract

The utility model relates to a multi-cavity arc-blowing type lightning protection insulation cross arm which comprises a cross arm support and a support plate installed on the cross arm support, insulators are installed at the tops of the two ends of the support plate, a matching assembly is installed on the support plate and comprises an adjusting plate and a fixing plate, two slots are formed in the support plate in parallel, and the two slots are arranged in parallel. The adjusting plate is slidably mounted in the slot, a tightening spring is mounted between the side face, close to the fixing plate, of the adjusting plate and the slot, bolt holes are further formed in the adjusting plate and the fixing plate, and a bolt rod is further inserted into the bolt holes penetrating through the adjusting plate and the fixing plate. After the support plate is placed on the cross arm support, the adjusting plate gets close to the fixing plate so as to clamp the cross arm support, the support plate 2 is preliminarily fixed, then a bolt rod can penetrate through the bolt holes in the fixing plate and the adjusting plate and is tightened and fixed, and installation is convenient.

Description

Technical Field

[0001] The present application relates to the technical field of insulating cross arms, and in particular to a multi-chamber arc-blowing lightning protection insulating cross arm. Background Art

[0002] As the coverage of AC overhead lines in the power system becomes wider and wider, lightning has a great impact on the reliability of AC overhead lines. Lightning trip and insulator flashover accidents frequently occur in domestic and foreign AC overhead lines, causing huge economic losses and seriously threatening the safe operation of overhead lines. An effective lightning protection measure for high-voltage AC overhead lines is to install line lightning arresters. Currently, the line lightning arresters used on overhead lines mainly include line-type zinc oxide lightning arresters and protection gap lightning arresters.

[0003] Referring to the Chinese patent case with the authorized announcement number CN215978729U, a multi-chamber lightning protection insulating cross arm is disclosed. An insulating wire is fixedly connected between the top of the insulator and the multi-chamber lightning arrester. A grounding component is arranged inside the insulating cross arm for connecting to the ground. The grounding component is arranged between the first mounting plate and the second mounting plate, so that when the transmission line is struck by lightning, the current can be connected to the ground to protect the insulator from flashover. The multi-chamber lightning arrester can quickly return to a high-resistance state to cut off the power-frequency follow current, and lightning flashover tripping and wire fusing will not occur. In this solution, the installation of the insulator requires the cooperation of the first mounting plate and the second mounting plate, and the first mounting plate and the second mounting plate are respectively arranged above and below the cross arm. During installation, personnel cooperation is required for support, and then the first mounting plate and the second mounting plate are fixed to the cross arm through bolt rods, which is time-consuming and laborious and the installation is not convenient enough.

[0004] Therefore, those skilled in the art provide a multi-chamber arc-blowing lightning protection insulating cross arm to solve the problems raised in the above background art. Utility Model Content

[0005] To solve the problems raised in the above background art, the present application provides a multi-chamber arc-blowing lightning protection insulating cross arm.

[0006] The multi-chamber arc-blowing lightning protection insulating cross arm provided by the present application adopts the following technical solutions:

[0007] A multi-chamber arc-blowing lightning protection insulating cross arm includes a cross arm bracket and a bracket plate installed on the cross arm bracket. Insulators are installed on the top of both ends of the bracket plate. A matching component is installed on the bracket plate. The matching component includes an adjusting plate and a fixing plate. Two slots are parallelly opened on the bracket plate. The adjusting plate is slidably installed in the slot, and a tightening spring is installed between the side of the adjusting plate close to the fixing plate and the slot. Bolt holes are also opened on the adjusting plate and the fixing plate, and a bolt rod is inserted through the bolt holes of the adjusting plate and the fixing plate.

[0008] Preferably, two sliders are installed on the top of the adjusting plate, the tops of the two sliders are connected to the same insulating plate, and a guide rod is also installed in the slot, and the slider is slidably sleeved on the guide rod.

[0009] Preferably, limiting grooves are provided on both side surfaces of the adjusting plate and the fixing plate, clamping strips are slidably installed in the limiting grooves, and the bottoms of the corresponding two clamping strips are also connected to the same bottom clamping plate, and a connecting spring is also installed between the top of the clamping strip and the limiting groove.

[0010] Preferably, an adjusting groove is further provided horizontally through the cross arm support, and the bolt rod is slidably inserted into the adjusting groove.

[0011] Preferably, a semi-circular clamp is installed at the middle position of the cross arm support, a grounding wire is electrically connected to the back surface of the semi-circular clamp, a deflection shaft is hinged at the edge of the semi-circular clamp, and the other half of the clamp that cooperates with the semi-circular clamp is sleeved on the deflection shaft, and a screw is inserted into the portion where the end of the clamp extends outward.

[0012] In summary, the present application includes the following beneficial technical effects:

[0013] 1. In the present application, a fixing plate and an adjusting plate are installed on the support plate. With the cooperation of the tightening spring, the adjusting plate can approach the fixing plate. After the support plate is placed on the cross arm support, the adjusting plate will approach the fixing plate to clamp the cross arm support, and the support plate 2 is initially fixed. Then, the bolt rod can be used to pass through the bolt holes on the fixing plate and the adjusting plate and tightened and fixed, and the installation is relatively convenient.

[0014] 2. In the present application, an adjusting groove is also horizontally provided on the cross arm support, and the bolt rod is installed through the adjusting groove. After the bolt rod is loosened, the bolt rod and the support plate can be pushed to slide on the cross arm support to adjust the position of the support plate, which is convenient for adjustment.

[0015] 3. In the present application, a semi-circular clamp is also installed in the middle of the cross arm support, and a cooperating clamp is installed at the end of the semi-circular clamp through a deflection shaft. With the cooperation of the semi-circular clamp and the clamp, the cross arm support can be installed on the electric pole, and it is relatively convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall structural schematic diagram of the present application;

[0017] Figure 2 is the structural schematic diagram of the cross arm support of the present application;

[0018] Figure 3 is the disassembly schematic diagram of the cooperating components of the present application.

[0019] Description of reference numerals: 1, cross arm support; 11, adjustment groove; 12, semi-circular clamp; 13, hoop; 14, deflection shaft; 15, screw; 16, grounding wire; 2, support plate; 21, insulator; 22, adjustment plate; 221, slider; 222, insulating plate; 23, fixing plate; 24, slot; 241, guide rod; 242, tightening spring; 25, bolt rod; 26, limiting groove; 27, clamping strip; 28, bottom clamping plate; 29, connecting spring. Detailed implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0021] Embodiment 1

[0022] As Figure 1 、 Figure 2 shown, the present application discloses a multi-chamber arc-blowing lightning protection insulating cross arm, including a cross arm support 1 and a support plate 2 installed on the cross arm support 1. Insulators 21 are installed on the top ends of both ends of the support plate 2. A semi-circular clamp 12 is also installed at the middle position of the cross arm support 1. A grounding wire 16 is electrically connected to the back surface of the semi-circular clamp 12. A deflection shaft 14 is also hinged at the edge of the semi-circular clamp 12. The other half hoop 13 that cooperates with the semi-circular clamp 12 is sleeved on the deflection shaft 14. A screw 15 is also inserted into the part where the end of the hoop 13 extends outward;

[0023] Specifically, a semi-circular clamp 12 is also installed at the middle of the cross arm support 1. In order to facilitate the installation of the cross arm support 1 on the electric pole, a hoop 13 that cooperates with the semi-circular clamp 12 is also provided. The hoop 13 is installed at the end of the semi-circular clamp 12 through the deflection shaft 14. By flipping the hoop 13, the semi-circular clamp 12 can be sleeved on the electric pole, and the installation is relatively convenient. In addition, since the deflection shaft 14 is provided on the semi-circular clamp 12 and the hoop 13 is sleeved on the deflection shaft 14, the height of the hoop 13 is less than the height of the semi-circular clamp 12. An extension edge is also provided at the end of the hoop 13. Through the cooperation of the screw 15, the hoop 13 can be fixed on the semi-circular clamp 12 for fixation.

[0024] As Figure 1 、 Figure 3As shown, a matching component is installed on the support plate 2. The matching component includes an adjusting plate 22 and a fixing plate 23. Two slots 24 are parallelly opened on the support plate 2. The adjusting plate 22 is slidably installed in the slot 24. A tightening spring 242 is installed between the side of the adjusting plate 22 close to the fixing plate 23 and the slot 24. Bolt holes are also opened on the adjusting plate 22 and the fixing plate 23. A bolt rod 25 is inserted through the bolt holes penetrating the adjusting plate 22 and the fixing plate 23. An adjusting groove 11 is also provided horizontally through the cross arm support 1. The bolt rod 25 is slidably inserted in the adjusting groove 11. Two sliders 221 are installed on the top of the adjusting plate 22. The same insulating plate 222 is connected to the tops of the two sliders 221. A guide rod 241 is also installed in the slot 24. The slider 221 is slidably sleeved on the guide rod 241;

[0025] Specifically, a matching component is also installed on the support plate 2. The adjusting plate 22 and the fixing plate 23 are provided in the matching component. With the cooperation of the tightening spring 242, the adjusting plate can be pulled close to the fixing plate 23. During installation, the insulating plate 222 can be pushed by hand to push the adjusting plate 22 away from the fixing plate 23, leaving a width greater than that of the cross arm support 2 between the adjusting plate 22 and the fixing plate 23. Then, the support plate 2 can be placed on the cross arm support 1. After releasing the insulating plate 222, the tightening spring 242 can pull the adjusting plate 22 to clamp on the cross arm support 1 for preliminary fixation without the need for the cooperation of others. When further fixation is required, the bolt rod 25 can be passed through the bolt holes on the adjusting plate 22 and the fixing plate 23 and tightened. With the cooperation of the bolt rod 25, the support plate 2 can be installed on the cross arm support 2. In addition, an adjusting groove 11 is provided horizontally through the cross arm support 1. The bolt rod 25 is slidably inserted in the adjusting groove 11. When the position of the support plate 2 needs to be adjusted, the bolt rod 25 can be loosened. When the bolt rod 25 is pushed to slide in the adjusting groove 11, the position of the mounting plate 2 can be changed, which is easy to adjust.

[0026] As Figure 3As shown in the figure, limiting grooves 26 are formed on both side surfaces of the adjusting plate 22 and the fixing plate 23. Clamping bars 27 are slidably installed in the limiting grooves 26. The same bottom buckling plate 28 is connected to the bottoms of the corresponding two clamping bars 27. A connecting spring 29 is also installed between the top of the clamping bar 27 and the limiting groove 26. Further, in order to keep the support plate 2 stable after preliminary installation, clamping bars 27 are slidably installed on both the adjusting plate 22 and the fixing plate 23. A bottom buckling plate 28 is installed at the bottom of the clamping bar 27. After the adjusting plate 22 approaches the fixing plate 23 and clamps on the cross arm support 1, the bottom buckling plate 28 will slide below the cross arm support 1. And a connecting spring 29 is also arranged between the clamping bar 27 and the limiting groove 26. The connecting spring 29 can provide a pulling force to pull the bottom buckling plate 28 to closely adhere to the bottom of the cross arm support 1. Through the cooperation of the adjusting plate 22, the fixing plate 23 and the bottom buckling plate 28, the support plate 2 can be restricted on the cross arm support 1 to maintain preliminary stability, facilitating subsequent fixation.

[0027] The standard parts used in the present utility model can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machines, parts and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.

[0028] Meanwhile, the content not described in detail in this specification all belongs to the prior art well-known to those skilled in the art.

[0029] The implementation principle of a multi-chamber arc-blowing lightning protection insulating cross arm in an embodiment of the present application is as follows:

[0030] During use, the insulating plate 222 can be first pushed by hand. The insulating plate 222 can push the slider 221 to slide on the guide rod 241, so as to push the adjusting plate 22 away from the fixing plate 23. After leaving a distance greater than the width of the cross arm support 1 between the adjusting plate 22 and the fixing plate 23, the mounting plate 2 can be preliminarily placed on the cross arm support 1. After releasing the insulating plate 222, the tightening spring 242 can pull the adjusting plate 22 to clamp on the cross arm support 1 for preliminary fixation, without the need to rely on the cooperation of others for fixation. Further, in order to keep the support plate 2 stable after preliminary installation, clamping bars 27 are slidably installed on both the adjusting plate 22 and the fixing plate 23. A bottom buckling plate 28 is installed at the bottom of the clamping bar 27. After the adjusting plate 22 approaches the fixing plate 23 and clamps on the cross arm support 1, the bottom buckling plate 28 will slide below the cross arm support 1. And a connecting spring 29 is also arranged between the clamping bar 27 and the limiting groove 26. The connecting spring 29 can provide a pulling force to pull the bottom buckling plate 28 to closely adhere to the bottom of the cross arm support 1. Through the cooperation of the adjusting plate 22, the fixing plate 23 and the bottom buckling plate 28, the support plate 2 can be restricted on the cross arm support 1 to maintain preliminary stability, facilitating subsequent fixation.

[0031] When it needs to be fixed later, the bolt rod 25 can be passed through the bolt holes on the adjusting plate 22 and the fixing plate 23 and tightened. With the cooperation of the bolt rod 25, the support plate 2 can be installed on the cross arm support 2. In addition, an adjusting groove 11 is horizontally provided through the cross arm support 1, and the bolt rod 25 is slidably inserted into the adjusting groove 11. When the position of the support plate 2 needs to be adjusted, the bolt rod 25 can be loosened. When the bolt rod 25 is pushed to slide in the adjusting groove 11, the position of the mounting plate 2 can be changed, which is easy to adjust;

[0032] A semi-circular clamp 12 is also installed in the middle of the cross arm support 1. In order to facilitate the installation of the cross arm support 1 on the electric pole, a hoop 13 is also provided, which is matched with the semi-circular clamp 12. The hoop 13 is installed at the end of the semi-circular clamp 12 through a deflection shaft 14. By flipping the hoop 13, the semi-circular clamp 12 can be sleeved on the electric pole, and the installation is relatively convenient.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only the preferred examples of the present invention and do not limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-chamber arc-blowing lightning protection insulating cross arm, comprising a cross arm bracket (1) and a bracket plate (2) mounted on the cross arm bracket (1), insulators (21) being mounted on the tops of both ends of the bracket plate (2), characterized in that: A matching component is installed on the bracket plate (2), and the matching component includes an adjusting plate (22) and a fixing plate (23). Two narrow slots (24) are arranged in parallel on the bracket plate (2), and the adjusting plate (22) is slidably installed in the narrow slots (24). A tightening spring (242) is installed between the side of the adjusting plate (22) close to the fixing plate (23) and the narrow slot (24). Bolt holes are also arranged on the adjusting plate (22) and the fixing plate (23), and bolt rods (25) are also inserted into the bolt holes that penetrate the adjusting plate (22) and the fixing plate (23).

2. A multi-chamber arc-blowing lightning protection insulating cross arm according to claim 1, characterized in that: Two sliders (221) are installed on the top of the adjustment plate (22), the tops of the two sliders (221) are connected to the same insulating plate (222), and a guide rod (241) is also installed in the narrow groove (24), and the slider (221) is slidably mounted on the guide rod (241).

3. The multi-chamber arc-blowing lightning protection insulating cross arm according to claim 1, characterized in that: The regulating plate (22) and the fixing plate (23) are provided with limiting grooves (26) on both side surfaces, and a clamping strip (27) is slidably installed in the limiting groove (26). The bottoms of the two corresponding clamping strips (27) are also connected to the same bottom buckle plate (28), and a connecting spring (29) is also installed between the top of the clamping strip (27) and the limiting groove (26).

4. The multi-chamber arc-blowing lightning protection insulating cross arm according to claim 1, characterized in that: The horizontally penetrating cross arm bracket (1) is also provided with an adjustment groove (11), and the bolt rod (25) is slidably inserted in the adjustment groove (11).

5. The multi-chamber arc-blowing lightning protection insulating cross arm according to claim 1, characterized in that: A semicircular clamp (12) is also installed in the middle of the cross arm bracket (1), and a grounding wire (16) is electrically connected to the back of the semicircular clamp (12). A deflection shaft (14) is hinged at the edge of the semicircular clamp (12), and the other half of the clamp (13) matching the semicircular clamp (12) is mounted on the deflection shaft (14), and a screw (15) is inserted into the part extending outward from the end of the clamp (13).

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