Construction operation and maintenance platform

Abstract

The utility model provides a construction operation and maintenance platform which comprises a supporting platform, a first connecting piece and a second connecting piece, the first end of the supporting platform is connected with a tower body, the second end of the supporting platform is a free end, and the first end of the first connecting piece and the first end of the second connecting piece are connected with different positions of a power transmission tower correspondingly. The second end of the first connecting piece and the second end of the second connecting piece are both connected with the supporting platform in a position-adjustable mode. According to the construction operation and maintenance platform, the position of the construction operation and maintenance platform relative to the tower body can be conveniently adjusted, the construction operation and maintenance platform can be suitable for construction and operation and maintenance of different types of power transmission towers, meanwhile, installation is easy, and the construction and operation and maintenance cost can be reduced.

Description

Technical Field

[0001] This application relates to the technical field of power transmission, and specifically relates to a construction and operation and maintenance platform. Background Art

[0002] With the gradual popularization and application of composite cross-arm overhead transmission lines, the construction, operation and maintenance of composite cross-arm overhead transmission lines have attracted more and more attention from customers. Since it is not easy for construction workers to work on the composite cross-arm, and at the same time, in order to protect the umbrella skirt of the composite cross-arm, the operators are not allowed to step on the umbrella skirt at will. Therefore, the existing technology mostly uses a construction and operation and maintenance platform installed on the tower body to facilitate the construction workers to stand. However, the existing construction and operation and maintenance platforms often have fixed shapes and sizes and cannot be applied to different types or different sizes of transmission towers. Summary of the Utility Model

[0003] In view of this, this application provides a construction and operation and maintenance platform, which can be applied to the construction and operation and maintenance of different types of transmission towers. At the same time, it is simple to install and can reduce the construction and operation and maintenance costs.

[0004] To solve the above problems, this application provides a construction and operation and maintenance platform for the inspection and maintenance of composite cross-arms on transmission towers. The transmission tower includes a tower body, a composite cross-arm installed on the tower body, and a construction and operation and maintenance platform. The composite cross-arm includes a post insulator and a stay insulator. One end of the post insulator and the stay insulator are respectively connected to the tower body, and the other ends are connected to each other through a joint fitting to form a wire hanging point. The construction and operation and maintenance platform is installed on the tower body near the composite cross-arm. The construction and operation and maintenance platform includes: a support platform, a first connecting member, and a second connecting member. The first end of the support platform is connected to the tower body, the second end of the support platform is a free end, the first ends of the first connecting member and the second connecting member are respectively connected to different positions of the transmission tower, and the second ends of the first connecting member and the second connecting member are connected to the support platform in an adjustable position manner.

[0005] For the construction and operation and maintenance platform provided by this application, the connection positions of the first connecting member, the second connecting member and the support platform are set to be adjustable, which can conveniently change the connection positions among them according to the actual working conditions, and expands the applicable range of the construction and operation and maintenance platform; at the same time, the first connecting member and the second connecting member are connected to different positions of the transmission tower, ensuring the connection reliability between the construction and operation and maintenance platform and the transmission tower, and improving the use safety of the construction and operation and maintenance platform.

[0006] According to some embodiments of this application, the support platform is a truss structure.

[0007] According to some embodiments of the present application, an auxiliary plate is provided on the nodal fitting. The auxiliary plate protrudes from the nodal fitting and is located below the nodal fitting. The plate surface of the auxiliary plate is perpendicular to the ground. An installation hole is provided on the auxiliary plate. The first connecting member includes a connecting fitting, and the connecting fitting is used to connect the support platform to the nodal fitting through the installation hole.

[0008] According to some embodiments of the present application, the first connecting member includes a stay cable. The first end of the stay cable is connected to the tower body above the support platform, and the second end of the stay cable is connected to the support platform with an adjustable position.

[0009] According to some embodiments of the present application, the second connecting member includes a support rod. The first end of the support rod is connected to the tower body, and the second end of the support rod is connected to the support platform with an adjustable position. The support rod and the support platform are in the same horizontal plane.

[0010] According to some embodiments of the present application, the support platform, the first connecting member, and the second connecting member are all connected to the tower body through a tower connecting assembly.

[0011] According to some embodiments of the present application, the tower connecting assembly includes a first clamping plate and a second clamping plate that are correspondingly clamped on the angle steel of the tower body. The first clamping plate is arranged to fit the outer side wall of the angle steel, and the second clamping plate is arranged to fit the inner side wall of the angle steel.

[0012] According to some embodiments of the present application, a plurality of first connection holes are provided on both the first clamping plate and the second clamping plate. A plurality of construction holes are provided on the angle steel. After the first connection holes and the construction holes are correspondingly matched, fasteners are passed through them to fixedly connect the first clamping plate, the second clamping plate, and the angle steel.

[0013] According to some embodiments of the present application, the tower connecting assembly further includes a horizontal connecting plate and a vertical connecting plate. The horizontal connecting plate is vertically connected to the outer side wall of the first clamping plate, and the vertical connecting plate is vertically connected to both the first clamping plate and the horizontal connecting plate at the same time.

[0014] According to some embodiments of the present application, the tower connecting assembly further includes a plurality of second connection holes. The plurality of second connection holes are provided on the horizontal connecting plate, and / or the plurality of second connection holes are provided on the vertical connecting plate. The support platform, the first connecting member, and the second connecting member are connected to the tower connecting assembly through the second connection holes.

[0015] According to some embodiments of the present application, both the first connecting member and the second connecting member are connected to the support platform through a hoop assembly.

[0016] According to some embodiments of the present application, the connections between the support platform, the first connecting member, and the second connecting member are all detachable connections.

[0017] Advantages of the present application: In the present application, the connection positions of the first connecting member, the second connecting member and the support platform are adjustable, which can conveniently change the connection positions among them according to the actual working conditions, expanding the applicable range of the construction and maintenance platform; at the same time, the first connecting member and the second connecting member are connected to different positions of the transmission tower, ensuring the connection reliability between the construction and maintenance platform and the transmission tower and improving the use safety of the construction and maintenance platform.

[0018] Furthermore, the tower connecting assembly can conveniently adjust the connection angle between the construction and maintenance platform and the tower body, making the installation and adjustment of the construction and maintenance platform flexible and simple.

[0019] The above description is only an overview of the technical solution of the present application. In order to understand the technical means of the present application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the specific embodiments of the present application are specifically described below. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present application. And in all the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0021] Figure 1 is a schematic structural diagram of a transmission tower 10 according to an embodiment of the present application;

[0022] Figure 2 is Figure 1 a partial enlarged schematic diagram;

[0023] Figure 3 is Figure 2 a schematic structural diagram of the tower connecting assembly 400 in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0025] In this application, "connection", unless otherwise clearly defined or limited, should be understood in a broad sense. It can be directly connected or connected through an intermediate medium. In the description of this application, it should be understood that the orientation or positional relationship indicated by "upper", "lower", "end", "one end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application 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. Therefore, it should not be construed as a limitation to this application.

[0026] Referring to Figures 1 to 2 , an embodiment of this application provides a transmission tower 10. The transmission tower 10 includes a tower body 100, a composite cross arm 200 installed on the tower body 100, and a construction and maintenance platform 300. The composite cross arm 200 includes a post insulator and a stay insulator. One end of the post insulator and the stay insulator are respectively connected to the tower body 100, and the other ends are connected to each other through a joint fitting 210 to form a suspension point. The construction and maintenance platform 300 is installed on the transmission tower 10 and is used for the installation, inspection, and maintenance of the composite cross arm 200. Specifically, it can be located below the composite cross arm 200 to be constructed and maintained, facilitating the free movement of construction personnel during construction and maintenance operations, and improving the movement safety and comfort of construction personnel.

[0027] The tower body 100 can be a transmission tower structure with a common structure such as a lattice tower or a composite material tower pole. Among them, a composite cross arm 200 can be arranged on one side of the tower body 100, or composite cross arms 200 can be arranged on multiple sides of the tower body 100. Among them, one composite cross arm 200 can be arranged on one side of the tower body 100, or multiple composite cross arms 200 can be arranged at intervals along the vertical direction.

[0028] The construction and maintenance platform 300 includes a support platform 310, a first connecting member 320, and a second connecting member 330. The first end of the support platform 310 is connected to the tower body 100, and the second end of the support platform 310 is a free end. In this embodiment, the first ends of the first connecting member 320 and the second connecting member 330 are respectively connected to different positions of the tower body 100, and the second ends of the first connecting member 320 and the second connecting member 330 are connected to the support platform 310 with adjustable positions. The support platform 310, the first connecting member 320, and the second connecting member 330 form a stable triangular pyramid structure with the tower body 100, enabling the support platform 310 to be firmly fixed on the transmission tower 10 and not prone to deflection. When construction personnel need to perform construction and maintenance on the composite cross arm 200, they can move on the support platform 310 without stepping on the post insulator.

[0029] In other embodiments, the first ends of the first connecting member and the second connecting member may also be connected to other different positions on the transmission tower. For example, the first end of the first connecting member is connected to the joint fitting of the composite cross arm, and the first end of the second connecting member is connected to the tower body. The first connecting member is used to provide a tensile force in the vertical direction for the support platform, and the second connecting member is used to provide a supporting force in the horizontal direction for the support platform to ensure a firm connection between the support platform and the transmission tower.

[0030] The construction and maintenance platform 300 is detachably connected to the transmission tower 10, and the support platform 310, the first connecting member 320, and the second connecting member 330 are all detachably connected. When construction and maintenance of the transmission tower 10 are not required, the construction and maintenance platform 300 is detached from the transmission tower 10, and the support platform 310, the first connecting member 320, and the second connecting member 330 are disassembled for convenient storage; when construction and maintenance of the transmission tower 10 are required, the position of the construction and maintenance platform 300 installed on the transmission tower 10 is adjusted according to different construction conditions to facilitate the maintenance and construction of the construction workers. At the same time, the connection positions of the first connecting member 320 and the second connecting member 330 with the support platform 310 can be adjusted. When the length of the composite cross arm 200 is relatively long, the first connecting member 320 and the second connecting member 330 are connected to positions on the support platform 310 that are farther away from the tower body 100; conversely, when the length of the composite cross arm 200 is relatively short, the first connecting member 320 and the second connecting member 330 are connected to positions on the support platform 310 that are closer to the tower body 100. In this way, the entire construction and maintenance platform 300 can perform construction and maintenance for composite cross arms 200 of different models or different sizes, expanding the applicable range of the construction and maintenance platform 300.

[0031] The support platform 310 is of a truss structure, including a plurality of chord members and a plurality of web members. The chord members are arranged along the length direction of the support platform 310 and are the main supporting members of the support platform 310; the web members connect a plurality of chord members to form a stable structure and are the auxiliary connecting members of the support platform 310. Among them, a plurality of chord members are arranged parallel to each other along the direction away from the tower body 100, and a plurality of web members are evenly arranged between every two chord members. The two ends of each web member are fixedly connected to different chord members by welding. Of course, the web members and the chord members can also be fixedly connected by hinging or other connection methods, which are not limited here. Under the premise of meeting certain structural strength requirements, the truss structure is light in self-weight, consumes less materials, and is simple and convenient for production and processing. At the same time, since the support platform 310 is of a truss structure, it is convenient to adjust the connection positions of the first connecting member 320 and the second connecting member 330 with the support platform 310, further expanding the applicable range of the construction and maintenance platform 300.

[0032] In this embodiment, the support platform 310 is an inverted triangular truss structure. The chord members include two upper chord members and one lower chord member. The two upper chord members are located on the same horizontal plane at the same height to facilitate the formation of a plane for construction workers to move on. The lower chord member is located below the upper chord members. Specifically, the two upper chord members and one lower chord member are arranged in a manner corresponding to the three vertices of the inverted triangle respectively. Several web members are respectively connected between the upper chord members and between the upper chord members and the lower chord member, so that a pyramid structure composed of several pyramid structures with web members as side edges is formed between the upper chord members and the lower chord member, which can enhance the mechanical strength of the support platform 310. In other embodiments, the support platform can also be a truss structure of other shapes, such as a quadrilateral truss composed of four chord members, etc., as long as it is convenient for construction workers to move, and the present application does not limit this.

[0033] To facilitate the construction and operation and maintenance of the composite cross arm 200 by construction workers on the support platform 310, the support platform 310 is located below the composite cross arm 200. The support platform 310 can provide a stable support for the movement of construction workers and improve the safety of the construction process.

[0034] In an application scenario, the first end of the first connector 320 is fixedly connected to the joint fitting 210. Specifically, an auxiliary plate 211 is provided on the joint fitting 210. The auxiliary plate 211 protrudes from the joint fitting 210 and is located below the joint fitting 210. The plate surface of the auxiliary plate 211 is perpendicular to the ground. An installation hole 2111 is provided on the auxiliary plate 211. The first connector 320 includes a connecting fitting, and the connecting fitting is used to connect the support platform 310 to the joint fitting 210 through the installation hole 2111. In other embodiments, installation holes can also be directly provided on the joint fitting, that is, the positions of the installation holes can be set according to specific construction conditions.

[0035] Among them, the two ends of the first connector 320 are respectively connected to the support platform 310 and the joint fitting 210. The first connector 320 can provide a tensile force in the vertical direction for the support platform 310 to ensure the stability of the connection structure between the support platform 310 and the transmission tower 10. The first connector 320 is connected to the joint fitting 210 through a connecting fitting. Among them, the connecting fitting can be a hook, a sling or other connecting fittings, as long as the connection between the first connector 320 and the joint fitting 210 can be realized, and the present application does not limit this.

[0036] In another application scenario, the first connector 320 includes a stay cable. The first end of the stay cable is connected to the tower body 100 above the support platform 310, and the second end of the stay cable is connected to the support platform 310 with an adjustable position.

[0037] The first connecting member 320 is connected to the tower body 100 through stay cables. The stay cables can not only provide a vertical pulling force for the support platform 310, but also ensure the connection reliability between the support platform 310 and the tower body 100. Among them, the stay cables can be connecting ropes, connecting rods, or chains, as long as the connection between the first connecting member 320 and the support platform 310 can be achieved. The present application does not make any limitations in this regard.

[0038] In this embodiment, the number of the first connecting members 320 is one. In other embodiments, in order to improve the stability of the connection structure, the number of the first connecting members can also be two or three, which are respectively connected to different positions of the transmission tower. The present application does not make any limitations in this regard.

[0039] In some embodiments, the first connecting member 320 includes an adjusting member for adjusting the length of the first connecting member 320. By adjusting the length of the first connecting member 320 and the connection position between the first connecting member 320 and the support platform 310, the construction and operation and maintenance of transmission towers 10 of different sizes are facilitated, and the applicable range of the entire construction and operation and maintenance platform 300 is expanded.

[0040] The second connecting member 330 includes a support rod. The first end of the support rod is connected to the tower body 100, and the second end of the support rod is connected to the support platform 310 with an adjustable position. The support rod and the support platform 310 are in the same horizontal plane to ensure that the support rod provides a horizontal support force for the support platform 310, ensuring that the support platform 310 does not shake and improving the safety of the entire construction and operation and maintenance process.

[0041] In this embodiment, the number of the second connecting members 330 is one. In other embodiments, in order to improve the stability of the connection structure, the number of the second connecting members can also be two or three, which are respectively connected to different positions of the tower body. The present application does not make any limitations in this regard.

[0042] It can be understood that the first end of the support platform 310 is connected to the tower body 100, and the support platform 310 is connected to the second end of the first connecting member 320 and the second end of the second connecting member 330. At the same time, the first end of the first connecting member 320 can be connected to the tower body 100 or the joint fitting 210 of the composite cross arm 200. Of course, multiple first connecting members 320 can also be provided. The first ends of the multiple first connecting members 320 can be connected to the tower body 100 or the joint fitting 210 simultaneously, or can be fixedly connected to the tower body 100 and the joint fitting 210 respectively. When the first ends of the first connecting member 320 and the second connecting member 330 are both connected to the tower body 100, the first ends of the first connecting member 320 and the second connecting member 330 are located at different positions on the tower body 100, ensuring the connection reliability between the construction and maintenance platform 300 and the tower body 100, avoiding stress concentration when the first ends of the first connecting member 320 and the second connecting member 330 are located at the same place on the tower body 100, and improving the use safety of the construction and maintenance platform 300.

[0043] Continue to refer to Figure 2 , both the first connecting member 320 and the second connecting member 330 are connected to the support platform 310 through a hoop assembly. The hoop assembly includes two semi-circular hoops. The hoop assembly is arranged on the chord of the support platform 310. The two semi-circular hoops of the hoop assembly are butted to form a cavity, and the chord of the support platform 310 is fixed in the cavity. The first connecting member 320, the second connecting member 330 and the support platform 310 are connected through the hoop assembly, so that construction workers can adjust the connection positions of the first connecting member 320, the second connecting member 330 and the support platform 310 according to the operation distance, and the connection structure is stable and reliable. At the same time, by setting hoop assemblies of different sizes, the first connecting member 320 and the second connecting member 330 are applicable to support platforms 310 of different sizes, expanding the application scope of the first connecting member 320 and the second connecting member 330.

[0044] Combined with Figure 3 , the support platform 310, the first connecting member 320 and the second connecting member 330 are all connected to the tower body 100 through a tower connecting assembly 400. The tower connecting assembly 400 includes a first clamping plate 410 and a second clamping plate 420. The first clamping plate 410 and the second clamping plate 420 are clamped and fixed on both sides of the angle steel of the tower body 100.

[0045] In one embodiment, the first clamping plate 410 is arranged to fit the outer side wall of the angle steel, and the second clamping plate 420 is arranged to fit the inner side wall of the angle steel. The first clamping plate 410 includes a first side plate 410A and a second side plate 410B. The first side plate 410A and the second side plate 410B are perpendicularly connected so that the first clamping plate 410 is in an "L" shape. The shape of the second clamping plate 420 is the same as that of the first clamping plate 410. When connecting the tower connecting assembly 400 to the tower body 100, the plate surfaces of the first side plate 410A and the second side plate 410B of the first clamping plate 410 are respectively attached to the two outer side wall surfaces of the angle steel, and the plate surfaces of the first side plate and the second side plate of the second clamping plate 420 are respectively attached to the inner side wall surfaces of the angle steel. The first clamping plate 410 and the second clamping plate 420 cooperate with each other to achieve the installation and matching with the angle steel on the tower body 100.

[0046] Among them, a number of first connection holes 401 (the marks in the figure are only for illustration) are provided on both the first clamping plate 410 and the second clamping plate 420, and a number of construction holes (not shown in the figure) are provided on the angle steel. After the first connection holes 401 and the construction holes are correspondingly matched, fasteners are passed through them to fixedly connect the first clamping plate 410, the second clamping plate 420 and the angle steel, realizing the connection between the tower connecting assembly 400 and the tower body 100. The connection is simple and the connection effect is reliable, which is convenient for disassembly.

[0047] Continue to refer to Figure 3 , the tower connecting assembly 400 further includes a horizontal connecting plate 430 and a vertical connecting plate 440. The horizontal connecting plate 430 is perpendicularly connected to the outer side wall of the first clamping plate 410, and the vertical connecting plate 440 is simultaneously perpendicularly connected to the first clamping plate 410 and the horizontal connecting plate 430. Specifically, the horizontal connecting plate 430 is an L-shaped plate member. The horizontal connecting plate 430 includes a first horizontal connecting plate and a second horizontal connecting plate which are connected to each other. The inner side surfaces of the first horizontal connecting plate and the second horizontal connecting plate respectively abut against the first side plate 410A and the second side plate 410B. In this embodiment, four vertical connecting plates 440 are provided. The four vertical connecting plates 440 all vertically extend outward from the outer side wall of the first clamping plate 410. Two of the vertical connecting plates 440 are simultaneously perpendicularly connected to the first side plate 410A and the first horizontal connecting plate, and are respectively located on the upper and lower sides of the first horizontal connecting plate; the other two vertical connecting plates 440 are simultaneously perpendicularly connected to the second side plate 410B and the second horizontal connecting plate, and are respectively located on the upper and lower sides of the second horizontal connecting plate. That is, the connection structure of the vertical connecting plate 440 and the horizontal connecting plate 430 is in a "cross" shape on both the first side plate 410A and the second side plate 410B.

[0048] Among them, the horizontal connecting plate 430 is arranged to fit the middle part of the outer side wall of the first clamping plate 410 and is arranged in the horizontal direction, that is, the horizontal connecting plate 430 vertically extends outward from the middle part of the outer side wall of the first clamping plate 410.

[0049] The first clamping plate 410, the horizontal connecting plate 430, and the vertical connecting plate 440 can be integrally formed or fixedly connected by means such as welding.

[0050] The tower connecting assembly 400 further includes a plurality of second connecting holes 402. The plurality of second connecting holes 402 can be provided on the horizontal connecting plate 430, or can be provided on the vertical connecting plate 440. Of course, the second connecting holes 402 can also be provided on both the horizontal connecting plate 430 and the vertical connecting plate 440. The support platform 310, the first connecting member 320, and the second connecting member 330 are connected to the tower connecting assembly 400 through the second connecting holes 402. The settings of the horizontal connecting plate 430 and the vertical connecting plate 440 can be used to connect the support platform 310, the first connecting member 320, and the second connecting member 330 on the one hand, and can play a strengthening role on the other hand, improving the overall structural strength.

[0051] Wherein, two parallel plug plates are respectively provided at the ends of the support platform 310 and the second connecting member 330 connected to the tower connecting assembly 400. Through holes corresponding to the second connecting holes 402 are provided on the two plug plates. When the support platform 310 and the second connecting member 330 are connected to the tower connecting assembly 400, the horizontal connecting plate 430 or the vertical connecting plate 440 provided with the second connecting holes 402 is inserted between the two plug plates, and the support platform 310, the second connecting member 330 and the tower connecting assembly 440 are connected to each other by inserting fasteners between the second connecting holes 402 and the corresponding through holes, so that the support platform 310 and the second connecting member 330 are connected to the tower body 100. The settings of the horizontal connecting plate 430, the vertical connecting plate 440 and the plug plates can facilitate adjusting the connection angles between the support platform 310, the second connecting member 330 and the tower body 100 according to different working distance requirements when installing the support platform 310 and the second connecting member 330 on the tower body 100, making the construction and maintenance platform 300 applicable to different construction conditions and improving the applicable range of the construction and maintenance platform 300.

[0052] In summary, in this application, the connection positions of the first connecting member, the second connecting member and the support platform can be adjusted, which can conveniently change the connection positions among them according to the actual working conditions, expanding the applicable range of the construction and maintenance platform; at the same time, the first connecting member and the second connecting member are connected to two different positions of the transmission tower, ensuring the connection reliability between the construction and maintenance platform and the transmission tower and improving the use safety of the construction and maintenance platform. At the same time, the tower connecting assembly can conveniently adjust the connection angle between the construction and maintenance platform and the tower body, making the installation and adjustment of the construction and maintenance platform flexible and simple.

[0053] 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 foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be covered within the scope of the claims and the description of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A construction and operation and maintenance platform for the inspection and maintenance of composite cross arms on transmission towers. The transmission tower includes a tower body, the composite cross arm and the construction and operation and maintenance platform installed on the tower body. The composite cross arm includes a post insulator and a stay insulator. One ends of the post insulator and the stay insulator are respectively connected to the tower body, and the other ends are connected to each other through a joint fitting to form a wire hanging point. The construction and operation and maintenance platform is installed on the tower body at a position close to the composite cross arm, and is characterized in that, The construction and operation and maintenance platform includes: a support platform, a first connecting member, and a second connecting member. The first end of the support platform is connected to the tower body, the second end of the support platform is a free end. The first ends of the first connecting member and the second connecting member are respectively connected to different positions of the transmission tower, and the second ends of the first connecting member and the second connecting member are both connected to the support platform in an adjustable position manner.

2. The construction and operation and maintenance platform according to claim 1, characterized in that The support platform is a truss structure.

3. The construction and operation and maintenance platform according to claim 1, characterized in that An auxiliary plate is provided on the joint fitting. The auxiliary plate protrudes from the joint fitting and is located below the joint fitting. The plate surface of the auxiliary plate is perpendicular to the ground. An installation hole is provided on the auxiliary plate. The first connecting member includes a connecting fitting, and the connecting fitting is used to connect the support platform to the joint fitting through the installation hole.

4. The construction and operation and maintenance platform according to claim 1, characterized in that The first connecting member includes a stay cable. The first end of the stay cable is connected to the tower body above the support platform, and the second end of the stay cable is connected to the support platform in an adjustable position manner.

5. The construction and operation and maintenance platform according to claim 1, characterized in that The second connecting member includes a support rod. The first end of the support rod is connected to the tower body, and the second end of the support rod is connected to the support platform in an adjustable position manner. The support rod and the support platform are in the same horizontal plane.

6. The construction and operation and maintenance platform according to claim 4, wherein The support platform, the first connecting member, and the second connecting member are all connected to the tower body through a tower connecting assembly.

7. The construction and operation and maintenance platform according to claim 6, wherein The tower connecting assembly includes a first clamping plate and a second clamping plate that are correspondingly clamped on the angle steel of the tower body. The first clamping plate is arranged in contact with the outer side wall of the angle steel, and the second clamping plate is arranged in contact with the inner side wall of the angle steel.

8. The construction and operation and maintenance platform according to claim 7, wherein A number of first connection holes are provided on both the first clamping plate and the second clamping plate. A number of construction holes are provided on the angle steel. After the first connection holes and the construction holes are correspondingly matched, fasteners are passed through them to fixedly connect the first clamping plate, the second clamping plate, and the angle steel.

9. The construction and operation and maintenance platform according to claim 8, characterized in that The tower connecting assembly further includes a horizontal connecting plate and a vertical connecting plate. The horizontal connecting plate is perpendicularly connected to the outer side wall of the first clamping plate, and the vertical connecting plate is perpendicularly connected to both the first clamping plate and the horizontal connecting plate at the same time.

10. The construction and operation and maintenance platform according to claim 9, characterized in that, The tower connecting assembly further includes a number of second connection holes. A number of the second connection holes are provided on the horizontal connecting plate, and / or a number of the second connection holes are provided on the vertical connecting plate. The support platform, the first connecting member, and the second connecting member are connected to the tower connecting assembly through the second connection holes.

11. The construction and operation and maintenance platform according to claim 1, characterized in that, The first connecting member and the second connecting member are both connected to the support platform through a hoop assembly.

12. The construction and operation and maintenance platform according to claim 1, characterized in that, The connections between the support platform, the first connecting member, and the second connecting member are all detachable connections.

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