110kV independent cable platform with guardrail for demarcation

Abstract

The utility model provides a 110kV independent cable platform with a guardrail for boundary. The 110kV independent cable platform comprises a platform structure, a guardrail structure, a plurality of tower structures and two crawling ladders. The beneficial effects of the utility model are that the cable terminal is suitable for the installation and connection of a 110kV user self-built cable terminal and a state grid cable terminal, and not only can the cable terminal in a user self-built power transmission line be connected with the cable terminal in a power transmission line of the state grid, but also the cable terminal can be installed on a cable platform; a user self-built cable terminal and a state grid cable terminal can be demarcated, installation disorder is avoided, maintenance of workers is facilitated, the guardrail structure can protect the workers on the cable platform, the platform structure, the guardrail structure, the tower structure and other main structures are all welded by steel, and the maintenance cost is reduced. Compared with a concrete mode, platform construction and installation are facilitated, the structural strength is high, damage is not prone to occurring, the service life of the cable platform can be prolonged, and practicability is high.

Description

Technical Field

[0001] The utility model belongs to the field of cable platforms, in particular to a 110kV independent cable platform with guardrail boundaries. Background Art

[0002] At present, cable platforms are generally installed at designated installation locations by pouring concrete. Concrete pouring has the advantages of long installation time, low operation efficiency and high cost. Moreover, when the cable platform is damaged, it is difficult to complete emergency repairs in a short time, and the cable terminals may deviate from the predetermined installation location. In addition, existing cable platforms generally do not have guardrails. The welding strength of cable platforms with guardrail structures is currently insufficient, and the operating area is relatively narrow. It is impossible to demarcate the cable terminals in the State Grid transmission lines and the cable terminals in the user-built transmission lines, and to operate on the same platform, which is not conducive to inspection and daily maintenance by staff. Utility Model Content

[0003] In view of this, the utility model aims to provide a 110kV independent cable platform with guardrail demarcation to solve at least one problem existing in the above-mentioned prior art.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] A 110kV independent cable platform with guardrail demarcation comprises a platform structure, a guardrail structure, a plurality of pole tower structures and two ladders. The guardrail structures are installed around the top of the platform structure, three pole tower structures are installed at the bottom of the platform structure, two ladders are also installed at the bottom of the platform structure, and the two ladders are respectively located between the three pole tower structures. The platform structure is a rectangular structure, and three lightning arresters are installed along the center line of the rectangular structure. The rectangular structure is also divided into left and right operating areas along the center line. The two operating areas are respectively a state grid cable terminal operating area and a user self-built cable terminal operating area. The state grid cable terminal operating area is used to install the state grid cable terminal structure, and the user self-built cable terminal operating area is used to install the user self-built cable terminal structure.

[0006] Furthermore, the platform structure includes a platform beam and a platform base, three pole tower structures and two ladders are staggeredly installed along the center line of the bottom of the platform base, the platform beam is installed on the top of the platform base, a guardrail structure is installed around the top of the platform beam, three lightning arrester base plates are installed on the center line of the top of the platform beam, a lightning arrester is installed on each lightning arrester base plate, and two make way channels are respectively opened on the top of the platform beam and the platform base, and the two make way channels are used to install two ladders.

[0007] Further, the guardrail structure includes a plurality of horizontal steel bars and vertical steel bars. The plurality of horizontal steel bars and vertical steel bars form a cuboid frame structure, and the connections between the horizontal steel bars and the vertical steel bars are all welded.

[0008] Further, the pole tower structure includes a pole tower body, a pole tower base, several cross arms, and two diagonal braces. The cross-section of the pole tower body is an octagonal structure. The pole tower base is installed at the bottom of the pole tower body. Several cross arms are axially symmetrically installed on the surface of the pole tower body. The top of the pole tower body is installed on the platform base, and the top of the pole tower body is also connected to the platform base through two diagonal braces.

[0009] Further, the State Grid cable terminal structure includes a State Grid cable terminal, a State Grid cable, a State Grid grounding box, State Grid cable clamps, and a State Grid cable protection pipe. The State Grid grounding box is installed on the pole tower body. The bottom of the State Grid cable is sleeved on the State Grid cable protection pipe. One side of the State Grid cable is installed on the cross arm through several State Grid cable clamps. The top of the State Grid cable passes through the platform structure and is connected to the State Grid cable terminal. The State Grid cable terminal is connected to the lightning arrester and the user-built cable terminal structure through leads.

[0010] Further, the user-built cable terminal structure includes a user-built cable terminal, a user-built cable, a user-built grounding box, user-built cable clamps, and a user-built protection pipe. The user-built grounding box is installed on the pole tower body. The bottom of the user-built cable is sleeved on the user-built protection pipe. One side of the user-built cable is installed on the cross arm through several user-built cable clamps. The top of the user-built cable passes through the platform structure and is connected to the user-built cable terminal. The user-built cable terminal is connected to the lightning arrester and the State Grid cable terminal through leads.

[0011] Further, it also includes a copper-aluminum transition clamp and a bolt-type T-connection fitting. The top of the lightning arrester is connected to one end of the lead through the copper-aluminum transition clamp, and the other end of the lead is respectively connected to the State Grid cable terminal and the user-built cable terminal through the bolt-type T-connection fitting.

[0012] Compared with the prior art, the 110 kV independent cable platform with a guardrail for demarcation of the utility model has the following advantages:

[0013] An 110kV independent cable platform with a guardrail for demarcation, which is described in the present utility model, is applicable to the installation and connection of the cable terminals self-built by users at 110kV and the cable terminals of the State Grid. It can not only connect the cable terminals in the transmission lines self-built by users with the cable terminals in the transmission lines of the State Grid and install them on a cable platform, but also demarcate the cable terminals self-built by users and the cable terminals of the State Grid, avoiding installation chaos and facilitating the maintenance of staff. Its guardrail structure can protect the staff on the cable platform. The main structures such as its platform structure, guardrail structure, and tower structure are all welded with steel. Compared with the concrete method, it is not only convenient for the construction and installation of the platform, but also has great structural strength, is not easily damaged, can extend the service life of the cable platform, and has strong practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings constituting a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0015] Figure 1 It is a top view schematic diagram of the overall structure described in the embodiment of the present utility model;

[0016] Figure 2 It is a plane schematic diagram of the platform beam described in the embodiment of the present utility model;

[0017] Figure 3 It is a front view schematic diagram of the connection of the guardrail structure and the tower base described in the embodiment of the present utility model;

[0018] Figure 4 It is an installation schematic diagram of the cable terminal structure of the State Grid and the cable terminal structure self-built by users described in the embodiment of the present utility model;

[0019] Figure 5 It is a schematic diagram of the ladder described in the embodiment of the present utility model.

[0020] Description of the reference numerals:

[0021] 1. Platform structure; 11. Platform beam; 111. Lightning arrester bottom plate; 112. Give way passage; 12. Platform base; 2. Guardrail structure; 3. Pole tower structure; 31. Pole tower body; 32. Pole tower base; 33. Cross arm; 34. Oblique support; 4. Ladder; 5. Lightning arrester; 6. State Grid cable terminal structure; 61. State Grid cable terminal; 62. State Grid cable; 63. State Grid grounding box; 64. State Grid cable clamp; 65. State Grid cable protection pipe; 7. User-built cable terminal structure; 71. User-built cable terminal; 72. User-built cable; 73. User-built grounding box; 74. User-built cable clamp; 75. User-built protection pipe; 8. Copper-aluminum transition wire clamp; 9. Bolt-type T-connector. DETAILED DESCRIPTION

[0022] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0023] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0025] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0026] like Figure 1As shown in the figure, an 110 kV independent cable platform with a guardrail for demarcation includes a platform structure 1, a guardrail structure 2, several pole tower structures 3, and two ladders 4. The guardrail structure 2 is installed around the top of the platform structure 1. Three pole tower structures 3 are installed at the bottom of the platform structure 1. Two ladders 4 are also installed at the bottom of the platform structure 1, and the two ladders 4 are respectively located between the three pole tower structures 3. The platform structure 1 is a cuboid structure. Three lightning arresters 5 are installed along the midline of the cuboid structure. The cuboid structure is also divided into two working areas, the left and the right, along the midline. The two working areas are the State Grid cable terminal working area and the user-built cable terminal working area respectively. The State Grid cable terminal working area is used to install the State Grid cable terminal structure 6, and the user-built cable terminal working area is used to install the user-built cable terminal structure 7. This is beneficial for the staff to operate on the user-built cable terminal and the State Grid cable terminal simultaneously on the same cable platform. In this embodiment, the two working areas share the pole tower structure 3, the two ladders 4, and multiple lightning arresters 5.

[0027] This cable platform is applicable to the user-built cable terminal and the State Grid cable terminal of 110 kV. It can not only connect the cable terminals in the user-built transmission line with those in the State Grid transmission line and install them on one cable platform, but also demarcate the user-built cable terminal and the State Grid cable terminal, avoiding installation chaos and facilitating the maintenance of the staff. Its guardrail structure can protect the staff on the cable platform. The main structures such as the platform structure 1, the guardrail structure 2, the pole tower structure 3, and the ladder 4 are all welded with steel. Compared with the concrete method, it is not only convenient for the construction and installation of the platform, but also has great structural strength, is not easy to be damaged, can extend the service life of the cable platform, and has strong practicability.

[0028] In a preferred embodiment of the present utility model, the platform structure 1 includes a platform beam 11 and a platform base 12. Three pole tower structures 3 and two ladders 4 are installed alternately along the midline at the bottom of the platform base 12. The platform beam 11 is installed on the top of the platform base 12. The guardrail structure 2 is installed around the top of the platform beam 11. Three lightning arrester bottom plates 111 are installed along the midline on the top of the platform beam 11, and one lightning arrester 5 is installed on each lightning arrester bottom plate 111. Two relief channels 112 are respectively opened on the tops of the platform beam 11 and the platform base 12, and the two relief channels 112 are used to install the two ladders 4. In this embodiment, the installation positions of the three lightning arrester bottom plates 111 can be directly above the pole tower bodies 31 of the three pole tower structures 3. Three user-built cable terminals 71 and State Grid cable terminals 61 are installed on the left and right working areas of the platform beam 11.

[0029] In a preferred embodiment of the present utility model, the guardrail structure 2 includes a plurality of horizontal steel bars and vertical steel bars. The plurality of horizontal steel bars and vertical steel bars form a cuboid frame structure, and the connections between the horizontal steel bars and the vertical steel bars are all welded. During actual use, all components of the horizontal steel bars and vertical steel bars (including the inner walls of the steel pipes) need to be hot-dip galvanized for anti-corrosion.

[0030] In a preferred embodiment of the present utility model, the pole tower structure 3 includes a pole tower body 31, a pole tower base 32, a plurality of cross arms 33, and two diagonal braces 34. The cross-section of the pole tower body 31 is an octagonal structure. The pole tower base 32 is installed at the bottom of the pole tower body 31. A plurality of cross arms 33 are axially symmetrically installed on the surface of the pole tower body 31. The top of the pole tower body 31 is installed on the platform base 12. The top of the pole tower body 31 is also connected to the platform base 12 through two diagonal braces 34. In this embodiment, the materials of the pole tower body 31, the pole tower base 32, the plurality of cross arms 33, and the two diagonal braces 34 are all steel, which improves the strength of the overall pole tower structure 3. The bottom of the pole tower body 31 can be quickly fixed to the designated installation position through the pole tower base 32, and the diagonal braces 34 can improve the stability of the pole tower structure 3 and the platform structure 1.

[0031] In a preferred embodiment of the present utility model, the State Grid cable terminal structure 6 includes a State Grid cable terminal 61, a State Grid cable 62, a State Grid grounding box 63, a State Grid cable clamp 64, and a State Grid cable protection pipe 65. The State Grid grounding box 63 is installed on the pole tower body 31. The bottom of the State Grid cable 62 is sleeved on the State Grid cable protection pipe 65. One side of the State Grid cable 62 is installed on the cross arm 33 through a plurality of State Grid cable clamps 64. The top of the State Grid cable 62 passes through the platform structure 1 and is connected to the State Grid cable terminal 61. The State Grid cable terminal 61 is connected to the lightning arrester 5 and the user-built cable terminal structure 7 through leads.

[0032] In a preferred embodiment of the present utility model, the user-built cable terminal structure 7 includes a user-built cable terminal 71, a user-built cable 72, a user-built grounding box 73, a user-built cable clamp 74, and a user-built protection pipe 75. The user-built grounding box 73 is installed on the pole tower body 31. The bottom of the user-built cable 72 is sleeved on the user-built protection pipe 75. One side of the user-built cable 72 is installed on the cross arm 33 through a plurality of user-built cable clamps 74. The top of the user-built cable 72 passes through the platform structure 1 and is connected to the user-built cable terminal 71. The user-built cable terminal 71 is connected to the lightning arrester 5 and the State Grid cable terminal 61 through leads. In this embodiment, three user-built cable terminal structures 7 are installed in the user-built cable terminal operation area, and the State Grid cable terminal structure 6 is installed in the State Grid cable terminal operation area.

[0033] In a preferred embodiment of the present utility model, it further includes a copper-aluminum transition wire clamp 8 and a bolt-type T-connection fitting 9. One end of the lead wire is connected to the top of the lightning arrester 5 through the copper-aluminum transition wire clamp 8, and the other end of the lead wire is respectively connected to the national grid cable terminal 61 and the user-built cable terminal 71 through the bolt-type T-connection fitting 9.

[0034] It should be noted that all the electrical components used in the user-built cable terminal structure 7 are national standard products, and their connection with the national grid cable terminal structure 6 is also legal and compliant, belonging to regular engineering construction.

[0035] Production requirements of this cable platform:

[0036] 1. When processing the steel pipe pole of this cable platform, the current "Code for Construction Quality and Acceptance of Steel Structure Engineering" (GB50205 - 2001) and "Technical Specification for Welding of Building Steel Structures" (JGJ81 - 2002) must be followed.

[0037] 2. All steel parts are Q235 steel, and their quality grades are all grade B, and the welding electrodes are E43.

[0038] 3. All materials such as bolts, steel plates, and welding electrodes should comply with relevant specific regulations and have factory qualified certificates.

[0039] 4. All components of the steel pipe pole (including the inner wall of the steel pipe) need to be hot-dip galvanized for anti-corrosion.

[0040] 5. During the welding process of each welded component, preheating measures must be adopted. When welding, the rust or cutting burrs and other dirt on the welded part must be removed first. After welding, the appearance is required to be smooth, without cracks, sand holes, and non-permeation phenomena. Arc starting and arc extinguishing are not allowed at the welding part. All processes should be carried out with reference to the relevant requirements of the "Technical Specification for Welding of Building Steel Structures" (JGJ81 - 2001).

[0041] 6. Welding of components should comply with the relevant regulations of relevant welding procedures and specifications. When the thickness of the plate part > 8mm, groove welding must be carried out to ensure the connection strength.

[0042] 7. When the steel thickness of this cable platform is 8 - 20mm, single-sided groove welding is adopted; when the thickness ≥ 20mm, double-sided groove welding is adopted.

[0043] 8. When the steel of this cable platform is channel steel, the holes connected to the channel steel are all The holes not specified are all holes. Anti-theft bolts are used throughout the platform.

[0044] 9. Welds other than those specified above are all fillet welds, and their appearance inspection reaches the third-level weld grade.

[0045] 10. When using double nuts for bolts, it shall be ensured that the screw rod is flush or protruding after the nuts are installed properly.

[0046] 11. First, cut and process one set of each pole type. Mass production of cutting and processing can only be carried out after passing the trial assembly and acceptance.

[0047] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A 110kV independent cable platform with guardrail demarcation, characterized by: It includes a platform structure, a guardrail structure, several pole tower structures and two ladders. The guardrail structures are installed around the top of the platform structure, three pole tower structures are installed at the bottom of the platform structure, and two ladders are also installed at the bottom of the platform structure. The two ladders are respectively located between the three pole tower structures. The platform structure is a rectangular structure. Three lightning arresters are installed along the center line of the rectangular structure. The rectangular structure is also divided into two left and right working areas along the center line. The two working areas are respectively the State Grid cable terminal working area and the user's self-built cable terminal working area. The State Grid cable terminal working area is used to install the State Grid cable terminal structure, and the user's self-built cable terminal working area is used to install the user's self-built cable terminal structure.

2. A 110kV independent cable platform with guardrail boundary according to claim 1, characterized in that: The platform structure includes a platform beam and a platform base. Three pole tower structures and two ladders are staggeredly installed along the center line at the bottom of the platform base. The platform beam is installed on the top of the platform base. A guardrail structure is installed around the top of the platform beam. Three lightning arrester base plates are installed on the center line of the top of the platform beam. A lightning arrester is installed on each lightning arrester base plate. Two make way channels are respectively opened on the platform beam and the top of the platform base, and the two make way channels are used to install two ladders.

3. A 110kV independent cable platform with guardrail boundary according to claim 1, characterized in that: The guardrail structure includes a plurality of horizontal steels and vertical steels, which form a rectangular parallelepiped frame structure, and the connections between the horizontal steels and the vertical steels are all welded.

4. A 110kV independent cable platform with guardrail boundary according to claim 2, characterized in that: The tower structure includes a tower body, a tower base, a plurality of cross arms and two oblique supports. The cross section of the tower body is an octagonal structure. The tower base is installed at the bottom of the tower body, and a plurality of cross arms are axially symmetrically installed on the surface of the tower body. The top of the tower body is installed to the platform base, and the top of the tower body is also connected to the platform base through two oblique supports.

5. A 110kV independent cable platform with guardrail boundary according to claim 4, characterized in that: The national grid cable terminal structure includes a national grid cable terminal, a national grid cable, a national grid grounding box, a national grid cable clamp and a national grid cable protection tube. The national grid grounding box is installed on the tower body, the bottom of the national grid cable is sleeved on the national grid cable protection tube, one side of the national grid cable is installed on the cross arm through a number of national grid cable clamps, the top of the national grid cable passes through the platform structure to be connected to the national grid cable terminal, and the national grid cable terminal is connected to the lightning arrester and the user's self-built cable terminal structure through a lead.

6. A 110kV independent cable platform with guardrail boundary according to claim 5, characterized in that: The user-built cable terminal structure includes a user-built cable terminal, a user-built cable, a user-built grounding box, a user-built cable clamp and a user-built protection tube. The user-built grounding box is installed on the pole tower body, the bottom of the user-built cable is sleeved on the user-built protection tube, one side of the user-built cable is installed on the cross arm through a plurality of user-built cable clamps, the top of the user-built cable passes through the platform structure to be connected to the user-built cable terminal, and the user-built cable terminal is connected to the lightning arrester and the State Grid cable terminal through a lead.

7. A 110kV independent cable platform with guardrail boundary according to claim 6, characterized in that: It also includes a copper-aluminum transition wire clamp and a bolt-type T-connecting hardware. The top of the lightning arrester is connected to one end of the lead through the copper-aluminum transition wire clamp, and the other end of the lead is connected to the State Grid cable terminal and the user's self-built cable terminal through the bolt-type T-connecting hardware.

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