Transmission and distribution line insulation lightweight crossing frame

Abstract

A transmission and distribution line insulation lightweight spanning frame comprises a plurality of insulation support units connected through connecting fasteners, each insulation support unit comprises a plurality of groups of parallel frame beams arranged at the top of the insulation support unit and a frame main beam arranged at the top of the insulation support unit, and the frame beams and the frame main beams are connected to form a rectangular structure. The isosceles triangle components are interwoven on the net surface of the top rectangular structure, are vertical to the plurality of groups of frame cross beams and are positioned on two outer side surfaces of the insulating bracket units; the horn guide insertion pieces are connected with stand columns fixed to the ground in a nested mode, and the horn guide insertion pieces are arranged on the two isosceles triangle assemblies of each insulation support unit to form the heights of the isosceles triangle assemblies; the insulating support units are expanded and connected into a plurality of groups along the parallel arrangement direction of the plurality of frame cross beams. A plurality of spanning frames can be combined and connected according to the distance of an application scene, free and flexible matching is achieved, and the two outer side faces are of a triangular structure, so that the spanning frames are kept in a stable state in strong wind weather.

Description

Technical Field

[0001] The present application belongs to the technical field of power transmission line construction and relates to an insulated lightweight spanning frame for transmission and distribution lines. Background Art

[0002] Crossovers are a crucial component of the security and defense systems of transmission and distribution networks. In large-scale power grid security, they are primarily used to support conductors, enabling them to safely and stably cross obstacles such as roads, railways, rivers, and other power and communication lines. This specialized support structure protects conductors from damage while traversing obstacles, preventing interference and collisions between conductors and obstacles, and ensuring smooth and safe power transmission.

[0003] At present, the crossing frames used in the market are mainly divided into three categories: 1. Tower-type crossing frames; 2. Wire-type crossing frames; 3. Combined crossing frames.

[0004] However, these three types of spanning frames are widely used in power line spanning construction, and they have the following problems: 1. For example, the publication number is CN308997959S, and the name is tower crane type spanning frame. The main structure of the tower type spanning frame is made of steel pipe or steel frame. It is easy to cause line tripping during high-voltage line spanning construction, affecting construction safety, and the cost is high and resources are seriously wasted.

[0005] 2. For example, the conductor-type span shown in the publication number CN117543420A, entitled "A Design Method for a Transmission Line Crossing Frame Made of Aluminum Alloy," uses aluminum alloy profiles as the main profile. Although it is light in weight, it has low strength, poor wind resistance and load capacity, is easily bent and deformed, and even broken, making it difficult to operate and damaging the outer insulation of the conductor, and is also expensive.

[0006] 3. As shown in the patent with publication number: CN202373906U, entitled: A construction crossing device for crossing live lines, the combined crossing frame combines the overhead insulated conductors and the grounding body into one, so that the insulated conductors also serve as the crossing bracket. Its biggest advantage is that it can be reused and saves steel. It is suitable for straight line and tension tower type crossings, but cannot be used for crossings with cross-crossings or parallel lines, and has certain limitations.

[0007] Therefore, the above-mentioned spanning frames have the problems of large consumables, non-scalable size, limited applicability, poor stability, large space occupation and inconvenient transportation. Summary of the Invention

[0008] The purpose of the present invention is to solve the problem in the prior art that it is difficult for a spanning frame to have both applicability and structural stability.

[0009] To achieve the above objectives, the present application proposes an insulated lightweight spanning frame for transmission and distribution lines, comprising: Several insulating bracket units are connected by connecting fasteners, and the insulating bracket units include: multiple groups of parallel frame beams arranged on the top of the insulating bracket units, and a frame main beam arranged on the top of the insulating bracket units. The frame beams and the frame main beams are connected to form a rectangular structure, and a mesh surface interwoven with the top rectangular structure is perpendicular to the multiple groups of frame beams and isosceles triangle components located on the two outer sides of the insulating bracket units. Furthermore, the mesh surface is made of insulating material, preferably nylon material.

[0010] A speaker guide insert is nested and connected to a column fixed on the ground, and the speaker guide insert is arranged on the two isosceles triangle components of each insulating bracket unit to form the height of the isosceles triangle components; The insulating bracket units can be extended and connected into multiple groups along the direction in which the multiple frame beams are arranged in parallel.

[0011] The cross-over frame of this application can be combined and connected into multiple groups according to the distance of the application scenario, achieving free and flexible matching. The two outer side surfaces are triangular structures, which ensure that the cross-over frame remains stable in strong winds. Among them, the speaker guide insert allows the assembled insulating bracket unit to be quickly and easily installed on the column, and the combination of the bracket clamp and the connecting fastener allows the frame beam, frame side beam and frame main beam to form a stable triangular structure. This solves the problem of the existing cross-over frame that it is difficult to simultaneously ensure structural stability, lightweight and flexible overlap to adapt to different usage scenarios.

[0012] Furthermore, in order to form a stable triangular structure and facilitate the disassembly of the frame to reduce the difficulty of transporting it across the frame when going to the construction site, the isosceles triangle assembly includes: the frame main beam forming the rectangular top surface of the insulating bracket unit, the frame side beam forming the waist of the isosceles triangle assembly, and the frame main beam and the frame side beam are connected by connecting fasteners; The frame main beam and the frame cross beam are also connected by connecting fasteners.

[0013] Furthermore, in order to separately assemble the speaker guide insert, the frame main beam, the frame cross beam and the frame side beam into an insulating bracket unit and reduce the difficulty of installing the insulating bracket unit on the column, the speaker guide insert (21) is connected to the frame main beam (23), the frame cross beam (26) and the frame side beam (24) through a bracket clamp (22).

[0014] In a specific embodiment, the bracket hoop (22) is configured as follows: the structure includes: a fitting portion (221) for nesting and connecting with the speaker guide insert (21); and an insert (222) fixedly connected to the fitting portion (221) for fixedly connecting with the frame main beam (23), the frame cross beam (26), and the frame side beam (24).

[0015] In another specific embodiment, as an improvement of the above-mentioned speaker guide insert, in order to achieve the installation of the speaker guide insert and the positioning of the bracket clamp, the speaker guide insert (21) includes: two embracing parts (211) for covering the top of the column (1), the two embracing parts are connected to form a cavity cone through a flat flange-shaped locking part (212) provided thereon, the locking parts (212) on the two embracing parts are connected by screws or screws and bolts, and the taper of the cavity cone is consistent with the taper of the top of the column (1); a trumpet (213) integrally formed with the two embracing parts and located at the bottom of the embracing parts; a clamp fitting part (214) provided on the inner wall of the embracing part for positioning and nesting the bracket clamp (22); and a mounting hole (215) provided on the clamp fitting part (214) for passing the insert (222).

[0016] As an improvement to the above-mentioned connecting fastener, in order to achieve the fixation of the frame main beam and the other end of the frame side beam and form a stable triangular structure, the connecting fastener includes: a column (251); a first connecting plate (252) and a second connecting plate (253) perpendicular to the first side wall of the column (251) and separated at the upper and lower ends thereof; a third connecting plate (254) perpendicular to the second side wall of the column (251) and located at the upper end thereof, wherein the second side wall is perpendicular to and adjacent to the first side wall; the first connecting plate (252), the second connecting plate (253) and the third connecting plate (254) are all provided with mounting holes for fixedly connecting with the frame main beam (23), the frame side beam (24) and the frame cross beam (26) through screws and bolts. Furthermore, in order to facilitate the installation and fixation of the mesh, the top surface of the connecting fastener is provided with a baffle arranged to be tilted upward, wherein the tilt direction of the baffle is away from the column. Furthermore, in order to further enhance the structural stability of the frame main beam and the frame side beam and improve the versatility of the reinforcement plate installation, a plurality of reinforcement plates are provided between the frame main beam and the frame side beam, wherein the reinforcement plate (27) is formed by fastening a first reinforcement plate and a second reinforcement plate together and then being fixedly connected by screws and bolts passing through through holes (271) thereon; and the first reinforcement plate and the second reinforcement plate are provided with grooves (272) formed by fastening together to allow the frame main beam (23) and the frame side beam (24) to pass through.

[0017] Furthermore, in order to improve the lightweight performance of the crossing frame, the frame main beam, frame side beam, frame cross beam and reinforcement plate are all hollow square tube structures, preferably made of insulating material.

[0018] Furthermore, in order to improve the insulation performance of the main beam, the frame main beam is covered with a main beam sleeve.

[0019] The beneficial effects of this application are: 1. The present invention's spanning bracket can be combined and connected into multiple groups based on the distances and lengths of the application scenario, enabling flexible and flexible configuration. The two outer sides have a triangular structure, ensuring the spanning bracket remains stable even in strong winds. The speaker guide inserts allow for quick and easy installation of the assembled insulating bracket unit on the column, while the combination of the bracket clamps and connecting fasteners allows the frame beams, frame side beams, and frame crossbeams to form a stable triangular structure, resolving the existing problem of spanning brackets struggling to maintain structural stability and insulation performance.

[0020] 2. The reinforcement plate of the present application is set up between the frame main beam and the frame side beam to further enhance the stability of the structure. At the same time, through holes and grooves are opened on the reinforcement plate. When installing the reinforcement plate, the reinforcement plate can be fixed on the side close to the column by inserting bolts into the through holes opened on the reinforcement plate, the frame main beam and the frame side beam. At the same time, the groove of the reinforcement plate is clamped on the frame main beam and the frame side beam, and the reinforcement plate can be installed on the side away from the column through the cooperation of bolts and nuts; therefore, without changing the shape of the reinforcement plate itself, two reinforcement plates can be installed on a set of frame main beams and frame side beams, which improves the versatility of the reinforcement plate.

[0021] 3. The mesh surface of the present application not only improves the bearing capacity of the spanning frame, but also cooperates with the frame main beam, frame side beam, frame cross beam and reinforcement plate of the hollow square tube structure to increase the lightweight of the spanning frame and reduce the difficulty of transportation and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a structural diagram of an insulated lightweight spanning frame for transmission and distribution lines in an embodiment of the present application; Figure 2 This is a schematic diagram of the connection relationship between the rear hoop of the hidden speaker guide insert and the column, the frame main beam, the frame cross beam and the frame side beam in an embodiment of the present application; Figure 3This is a schematic structural diagram of a speaker guide insert in an embodiment of the present application; Figure 4 This is a structural diagram of a connecting fastener in an embodiment of the present application; Figure 5 This is a schematic diagram of the connection relationship between the connecting fastener and the frame main beam and frame side beam in the embodiment of the present application; Figure 6 This is a schematic diagram of the installation of the reinforcement plate in the embodiment of the present application; Figure 7 This is a schematic diagram of the connection relationship between the rear hoop, the column, the frame main beam, the frame cross beam and the frame side beam in this embodiment, after half of the speaker guide insert is hidden; Description of reference numerals: 1. Pillar; 2. Insulating bracket unit; 21. Speaker guide insert; 211. Engaging portion; 212. Locking portion; 213. Speaker mouth; 214. Hoop engaging portion; 215. Mounting hole; 22. Bracket clamp; 221. Fitting part; 222. Insert; 23. Frame main beam; 24. Frame side beam; 25. Connecting fastener; 251. Column; 252. First connecting plate; 253. Second connecting plate; 254. Third connecting plate; 255. Baffle; 26. Frame cross beam; 27. Reinforcement plate; 271. Through hole; 272. Groove; 28. Main beam sleeve; 29. ​​Mesh surface. DETAILED DESCRIPTION

[0024] The following will be combined with the Figures 1 to 7 The embodiments of the technical solution of the present application are described in detail. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application. In addition, the technical features involved in the various embodiments of the present application described below may be combined with each other as long as they do not conflict with each other.

[0025] Example 1: like Figures 1 to 7 The diagram illustrates an insulated lightweight spanning frame for transmission and distribution lines of the present application. To improve assembly convenience and structural stability, the insulated lightweight spanning frame for transmission and distribution lines of this embodiment includes two symmetrically arranged columns 1 and an insulating bracket unit 2 disposed at the top of the columns 1. The insulating bracket unit 2 comprises a speaker guide insert 21, a bracket clamp 22, a frame main beam 23, a frame side beam 24, connecting fasteners 25, a frame cross beam 26, and a mesh surface 29.

[0026] For further information, please refer to Figure 1 、 Figure 3 and Figure 7The horn guide insert 21 includes: an embracing portion 211, a locking portion 212, a bell mouth 213, a hoop fitting portion 214 and a mounting hole 215, wherein the hoop fitting portion 214 is provided on the end surface of the embracing portion 211 along its axial direction and protrudes outward, and its shape is consistent with the surface shape of the bracket hoop 22, so that the surface of the bracket hoop 22 can be completely fitted with the interior of the hoop fitting portion 214; mounting holes 215 are provided at the top and bottom ends of the hoop fitting portion 214 to pass through its side wall, which is used to pass the end of the bracket hoop 22 through the hoop fitting portion 214 to facilitate its installation with the frame main beam 23; the locking portion 21 2 is provided with a row of through holes penetrating its surface. The engaging portion 211 is the main portion covering the surface of the column 1 and mainly plays a supporting role. When the two semicircular engaging portions 211 are symmetrically assembled, the through holes formed by the locking portion 212 are aligned, and bolts are passed through the through holes and then tightened with nuts to form a complete column structure that is sleeved on the top of the column 1; the bell mouth 213 serves as a guide to facilitate the rapid installation of the insulating bracket unit 2 on the column 1. When installing, align the bell mouth 213 with the column 1 and gradually lower the height to allow the end of the column 1 to gradually move closer to the axis along the inner wall of the bell mouth 213.

[0027] Furthermore, the bracket clamp 22 is configured as follows: the structure includes: a fitting portion 221 for nesting and connecting with the speaker guide insert (21); and an insert 222 fixedly connected to the fitting portion 221 for fixedly connecting with the frame main beam 23, the frame cross beam 26, and the frame side beam 24. The surface of the fitting portion 221 is in close contact with the inner wall of the clamp fitting portion 214, and the end portion thereof, i.e., the insert 222, passes through the mounting hole 215 and is respectively connected to one end of the frame main beam 23 and the frame side beam 24, and is fixed by bolts.

[0028] Furthermore, the connecting fastener 25 connects the frame main beam 23 and the other end of the frame side beam 24 .

[0029] Furthermore, the frame crossbeam 26 connects the bracket clamps 22 and the connecting fasteners 25 of the two columns 1 to further stabilize the structure.

[0030] Furthermore, the mesh surface 29 is arranged between the frame beams 26 to hold the conductors so as to improve the load-bearing capacity of the spanning frame.

[0031] Specifically, when assembling the insulating bracket unit 2, first install the bracket clamp 22 into the speaker guide insert 21, wherein the end of the bracket clamp 22 is passed through the mounting hole 215 opened in the speaker guide insert 21, and then the ends of the frame main beam 23, the frame side beam 24, and the frame cross beam 26 are respectively fixed with the ends of the three-head clamp 221 and the double-head clamp 222 passing through the mounting hole 215 by bolts and nuts. Next, the frame main beam 23 and the other end of the frame side beam 24 are fixed by the connecting fastener 25, wherein the end of the frame main beam 23 is passed through the first connecting plate 252, and the end of the frame side beam 24 is passed through the second connecting plate 253, and fixed with bolts and nuts; at this time, the connecting fastener 25, the frame main beam 23, the frame side beam 24, the bracket clamp 22 and the speaker guide insert 21 are combined into a stable triangular structure. Thereafter, a total of four triangular structures are assembled according to the above steps.

[0032] The triangular structures are then assembled in pairs, forming a single isosceles triangle structure with two triangular structures, and two isosceles triangle structures with four triangular structures. Specifically, the two speaker guide inserts 21 are aligned, particularly the holes on the two speaker guide inserts 21. Bolts are then passed through the locking portions 212 on one side of the embracing portion 211 and tightened with nuts.

[0033] Furthermore, one end of the two frame beams 25 is aligned with the locking portion 212 on which the bolts and nuts have not yet been installed, that is, the opposite end surfaces of the two frame beams 25 are pressed against the outer wall of the locking portion 212, and then fixed with bolts and nuts, that is, the locking portion 212 on one side is clamped by the two frame beams 25 to complete the connection with an isosceles triangle structure.

[0034] Furthermore, the other ends of the two frame beams 25 are connected to another isosceles triangle structure in the same manner, thereby completing the final assembly of the insulating bracket unit 2 .

[0035] Furthermore, after installing the insulating bracket unit 2, it is only necessary to use a crane to lift the insulating bracket unit 2, align the horn guide insert 21 with the end of the column 1, lower the height of the crane arm, and the insulating bracket unit 2 will be installed on the top of the column 1 under the guidance of the horn mouth 213. Then start to manually fine-tune the placement direction and position of the insulating bracket unit 2. After the adjustment is completed, hang the mesh 29 on the frame beam 26, wherein the edge part of the mesh 29 is hung on the third connecting plate 254 to complete the initial fixation, and finally tighten and fix the mesh 29 to complete the installation of the cross frame.

[0036] Furthermore, according to the actual site distance, the appropriate number of insulating bracket units is selected to meet the span distances of different lengths.

[0037] Specifically, after determining the exact position of the insulated lightweight crossing frame of the transmission and distribution line, use an excavator to dig a pit with a depth of 1m (which can be determined according to the soil conditions at the construction site), place the prefabricated sleeve base on the ground into the hole and correct the orientation, screw the threaded column 1 into the sleeve base to a preset height and seal and reinforce it with cement mortar. Depending on the height of the transmission line, additional columns can be added to the top of the column 1, and then a steel limit ring is inserted to fix the position of the additional column 1 and the column 2 installed on the base.

[0038] Use a crane to lift the insulating bracket unit 2 to the top of the sleeve base, confirm that the bell mouth 213 of the bell guide insert 21 is aligned with the top of the column 1, then stop lifting and start manually fine-tuning the placement direction and position of the insulator bracket.

[0039] After the adjustment is completed, the mesh surface 29 is hung on the frame crossbeam 26 and tightened and fixed.

[0040] Furthermore, as a preferred solution, the mesh surface 29 is made of nylon or other materials with good insulation properties to improve the insulation capacity of the spanning frame.

[0041] Example 2: like Figure 6 The present invention illustrates an insulated lightweight spanning frame for transmission and distribution lines. To enhance the versatility and structural stability of the reinforcing plates, two reinforcing plates 27 are provided between the frame main beam 23 and the frame side beam 24. The reinforcing plates 27 include through-holes 271 and slots 272. When installing the reinforcing plates 27, bolts are inserted through the through-holes 271 provided on the reinforcing plates 27, the frame main beam 23, and the frame side beam 24 to secure the reinforcing plates 27 to the side close to the column 1. Simultaneously, the slots 272 of the reinforcing plates 27 are engaged with the frame main beam 23 and the frame side beam 24, and the reinforcing plates 27 are installed on the side away from the column 1 by engaging the bolts and nuts. This design not only enhances the connection strength between the frame main beam 23 and the frame side beam 24, but also enhances the versatility of the reinforcing plates 27, as two reinforcing plates 27 can be installed on a set of frame main beams 23 and frame side beams 24 without changing the shape of the reinforcing plates 27 themselves.

[0042] Example 3: like Figure 1The present application illustrates an insulated lightweight spanning frame for transmission and distribution lines. In order to improve the lightweight and load-bearing capacity of the spanning frame, the frame main beam 23, frame side beam 24, frame cross beam 26 and reinforcement plate 27 of this embodiment all adopt a hollow square tube structure, more preferably an insulating material, such as a polyurethane material. This design reduces the overall weight of the spanning frame, improves the lightweight performance, and makes the whole frame an insulator. At the same time, the mesh surface 29, while improving the load-bearing capacity of the spanning frame, cooperates with the frame main beam 23, frame side beam 24, frame cross beam 26 and reinforcement plate 27 of the hollow square tube structure to further enhance the load-bearing capacity and insulation capacity of the spanning frame. This design reduces the difficulty of transporting and assembling the spanning frame and improves construction efficiency.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A light-weight insulated spanning frame for transmission and distribution lines, characterized in that: include: A plurality of insulating bracket units (2) connected by connecting fasteners (25), the insulating bracket unit (2) comprising: a plurality of mutually parallel frame beams (26) arranged on the top thereof, a frame main beam (23) arranged on the top thereof, the frame beams (26) and the frame main beam (23) connected to form a rectangular structure, a mesh surface (29) interwoven with the top rectangular structure, and isosceles triangle components perpendicular to the plurality of frame beams (26) and located on two outer side surfaces of the insulating bracket unit (2); preferably, the mesh surface (29) is made of insulating material, more preferably nylon material; A speaker guide insert (21) nested and connected to a column (1) fixed on the ground, wherein the speaker guide insert (21) is provided on two isosceles triangle components of each insulating bracket unit (2) to form the height of the isosceles triangle components; The insulating bracket units (2) can be extended and connected into multiple groups along the direction in which the multiple frame beams (26) are arranged in parallel.

2. The light-weight insulated spanning frame for transmission and distribution lines according to claim 1, characterized in that: The isosceles triangle assembly comprises: the frame main beam (23) forming the rectangular top surface of the insulating bracket unit (2), and the frame side beam (24) forming the waist of the isosceles triangle assembly, wherein the frame main beam (23) and the frame side beam (24) are connected via a connecting fastener (25); The frame main beam (23) and the frame cross beam (26) are also connected via a connecting fastener (25).

3. The light-weight insulated spanning frame for transmission and distribution lines according to claim 2, characterized in that: The horn guide insert (21) is connected to the frame main beam (23), the frame cross beam (26) and the frame side beam (24) via a bracket clamp (22).

4. The light-weight insulated spanning frame for transmission and distribution lines according to claim 3, characterized in that: The structure of the bracket hoop (22) comprises: a fitting portion (221) for nesting and connecting with the speaker guide insert (21); and an insert strip (222) fixedly connected to the fitting portion (221) for fixedly connecting with the frame main beam (23), the frame cross beam (26), and the frame side beam (24).

5. The light-weight insulated spanning frame for transmission and distribution lines according to claim 4, characterized in that: The speaker guide insert (21) comprises: two embracing parts (211) for covering the top of the column (1); the two embracing parts are connected to form a cavity cone through a flat flange-shaped locking part (212) provided thereon; the locking parts (212) on the two embracing parts are connected by screws or screws and bolts; the taper of the cavity cone is consistent with the taper of the top of the column (1); A bell mouth (213) integrally formed with the two embracing portions and located below the embracing portions; A hoop fitting portion (214) provided on the inner wall of the fitting portion and used for positioning and nesting the stent hoop (22); A mounting hole (215) for penetrating the inserting strip (222) is provided on the hoop engaging portion (214).

6. The light-weight insulated spanning frame for transmission and distribution lines according to claim 2, characterized in that: The connecting fastener (25) includes: a column (251); a first connecting plate (252) and a second connecting plate (253) perpendicular to the first side wall of the column (251) and separated at the upper and lower ends thereof; a third connecting plate (254) perpendicular to the second side wall of the column (251) and located at the upper end thereof, wherein the second side wall is perpendicular to and adjacent to the first side wall; the first connecting plate (252), the second connecting plate (253) and the third connecting plate (254) are all provided with mounting holes for fixedly connecting with the frame main beam (23), the frame side beam (24) and the frame cross beam (26) through screws and bolts.

7. The light-weight insulated spanning frame for transmission and distribution lines according to claim 6, characterized in that: The top surface of the connecting fastener (25) is provided with a baffle (255) arranged to be tilted upward, wherein the tilt direction of the baffle (255) faces away from the column (1).

8. The light-weight insulated spanning frame for transmission and distribution lines according to claim 2, characterized in that: A plurality of reinforcing plates (27) are provided between the frame main beam (23) and the frame side beam (24).

9. The light-weight insulated spanning frame for transmission and distribution lines according to claim 8, characterized in that: The reinforcing plate (27) is formed by fastening a first reinforcing plate and a second reinforcing plate together and fixing them together via screws and bolts passing through through holes (271) thereon; the first reinforcing plate and the second reinforcing plate are provided with grooves (272) formed by fastening together to allow the frame main beam (23) and the frame side beam (24) to pass through.

10. The light-weight insulated spanning frame for transmission and distribution lines according to claim 1, characterized in that: The frame main beam (23), the frame side beam (24), the frame cross beam (26) and the reinforcing plate (27) are all hollow square tube structures. Preferably, the frame main beam (23) is covered with a main beam sleeve (28); preferably, the frame main beam (23), the frame side beam (24), the frame cross beam (26) and the reinforcing plate (27) are all made of insulating materials.

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