Pillar transformation structure of outdoor additional equipment
By setting up a steel frame platform and concrete filling to fix the steel beams on the cantilevered balcony of the indoor substation, the problem of limited width of the cantilevered balcony was solved, the voltage transformer and lightning arrester pillars were stably installed, and the electrical safety distance requirements were met.
Patent Information
- Application Number
- CN202422132599.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-08-30
AI Technical Summary
In the indoor substation expansion project, the width of the cantilevered balcony is limited, making it difficult to place open-type voltage transformer and lightning arrester equipment supports within the range that meets the electrical safety distance requirements. The existing transformation method has the problem of structural instability.
A steel frame platform structure is adopted, including steel beams and U-shaped steel bars. By opening installation grooves on the wall and implanting steel beams and U-shaped steel bars, the steel beams are fixed with concrete fillers, and voltage transformers and lightning arrester pillars are installed on the upper side to enhance the structural stability and safety and reliability.
It achieves the goal of meeting the electrical safety distance requirements when the width of the cantilevered balcony is limited, and improves the structural stability and safety reliability of the equipment support.
Smart Images

Figure CN223317592U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of construction of power distribution device buildings, in particular to a structure for modifying pillars for adding equipment outdoors. Background Art
[0002] Earlier indoor substations placed all GIS line bay lightning arresters and line voltage transformers inside the GIS chamber. However, according to the "Technical Specifications for 110kV-500kV Combined Electrical Appliances (GIS and HGIS)" (China Southern Power Grid Equipment (2014) No. 17), issued by China Southern Power Grid Co., Ltd., voltage transformers and lightning arresters for overhead GIS line bays should be open-type structures, meaning they should be located outdoors. Therefore, in expansion projects with an indoor substation on the opposite side, it is often necessary to install voltage transformer and lightning arrester equipment supports on the second- or third-floor cantilevered balconies. However, due to certain electrical safety distance requirements and the limited width of the cantilevered balconies, it is difficult to place these equipment supports within the required electrical safety distances. Consequently, the existing structure needs to be modified. However, current modification methods may result in structural instability, reducing the reliability of the modified structure. Utility Model Content
[0003] In order to overcome the shortcomings of the existing technology, the purpose of the utility model is to provide an outdoor equipment support modification structure that is suitable for situations where the width of the cantilevered balcony is limited and meets the electrical safety distance requirements, thereby improving the structural stability and safety reliability.
[0004] The technical solution adopted by this utility model is:
[0005] A modified structure for installing equipment pillars outdoors includes a wall and a steel frame platform. The steel frame platform includes a steel beam and a U-shaped steel bar. An installation groove is opened on the wall. One end of the steel beam is inserted into the installation groove. The bottom ends of the U-shaped steel bar are embedded in the wall, and the lower side of the inner part is welded to the steel beam. A first concrete filling body surrounding the steel beam is cast in the installation groove. Several steel beams are arranged, and adjacent steel beams are connected by long steel strips. A voltage transformer pillar and a lightning arrester pillar arranged on one side of the voltage transformer pillar are installed on the upper side of the steel beam.
[0006] Preferably, a cantilevered platform is connected to the outside of the wall, and a plurality of concrete piers are connected to the top of the cantilevered platform, and the concrete piers are in contact with the lower side of the steel beam.
[0007] Preferably, the steel beam includes a first steel plate, a second steel plate and two channel steels, the first steel plate is arranged above the second steel plate, and the two channel steels are symmetrically arranged and welded between the first steel plate and the second steel plate.
[0008] Preferably, a screw rod is implanted in the cantilevered floating platform. The top of the screw rod sequentially passes through the concrete pier and the channel steel and is threadedly connected with a nut.
[0009] Preferably, a second concrete filling body surrounding the channel steel is poured on the upper side of the concrete pier.
[0010] Preferably, a checkered steel plate is connected to the upper side of the steel frame platform. Two avoidance holes are provided on the checkered steel plate. The voltage transformer support column and the lightning arrester support column respectively pass through the two avoidance holes.
[0011] Preferably, the long strip steel is angle steel.
[0012] Preferably, a fence is provided on the outer side of the checkered steel plate.
[0013] The beneficial effects of the present utility model are as follows:
[0014] By implanting the bottom ends of the U-shaped steel bars into the wall body, then inserting one end of the steel beam into the installation groove, welding the steel beam to the inner lower side of the U-shaped steel bars, pouring the first concrete filling body in the installation groove to further press and fix the steel beam, and finally installing the voltage transformer support column and the lightning arrester support column on the upper side of the steel beam, the structural stability and safety reliability are improved. It is applicable to the situation where the width of the external balcony is limited and meets the electrical safety distance requirements. Description of the Drawings
[0015] Figure 1 It is a structural schematic diagram of the present utility model.
[0016] Figure 2 is Figure 1 The enlarged schematic diagram at A-A in.
[0017] Figure 3 It is a pouring structural schematic diagram of the second concrete filling body.
[0018] Figure 4 It is a pouring structural schematic diagram of the first concrete filling body.
[0019] Figure 5 It is an installation schematic diagram of the checkered steel plate and the fence.
[0020] Figure 6 is Figure 5 The enlarged schematic diagram at B-B in.
[0021] In the figure: 1. Wall; 2. Steel frame platform; 201. Steel beam; 2011. First steel plate; 2012. Channel steel; 2013. Second steel plate; 202. C-shaped steel bar; 3. Installation groove; 4. First concrete filling body; 5. Long steel bar; 6. Voltage transformer support; 7. Lightning arrester support; 8. Cantilevered balcony; 9. Concrete pier; 10. Screw; 11. Nut; 12. Second concrete filling body; 13. Checkered steel plate; 14. Fence. Specific implementation manner
[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0023] Please refer to Figures 1-6 , the present invention provides a technical solution: a retrofit structure for an externally added equipment support, including a wall 1, and further including a steel frame platform 2. The steel frame platform 2 includes a steel beam 201 and a C-shaped steel bar 202. An installation groove 3 is opened on the wall 1. One end of the steel beam 201 is inserted into the installation groove 3. The bottom ends of the C-shaped steel bar 202 are implanted into the wall 1, and the lower side of its interior is welded to the steel beam 201. A first concrete filling body 4 that surrounds the steel beam 201 is poured in the installation groove 3. There are several steel beams 201 arranged, and adjacent two steel beams 201 are connected by a long steel bar 5, thereby connecting multiple steel beams 201 into a whole. A voltage transformer support 6 and a lightning arrester support 7 provided on one side of the voltage transformer support 6 are installed on the upper side of the steel beam 201;
[0024] First, an installation groove 3 is hollowed out on the wall 1, then the bottom ends of the C-shaped steel bar 202 are implanted into the wall 1 below the installation groove 3, and one end of the steel beam 201 is inserted into the installation groove 3. Then the steel beam 201 is welded to the lower side of the interior of the C-shaped steel bar 202 to form a fixation for the steel beam 201. After welding, a first concrete filling body 4 is poured in the installation groove 3 to further press and fix the steel beam 201. Finally, a voltage transformer support 6 and a lightning arrester support 7 are installed on the upper side of the steel beam 201 to improve the structural stability and safety reliability, which is applicable to the situation where the width of the cantilever balcony is limited and meets the electrical safety distance requirements.
[0025] In order to conveniently improve the structural stability, in this embodiment, preferably, a cantilevered balcony 8 is connected to the outside of the wall 1, and several concrete piers 9 are connected to the top of the cantilevered balcony 8. The concrete piers 9 are abutted against the lower side of the steel beam 201, aiming to support the middle part of the steel beam 201 through the concrete piers 9, making the force on the steel beam 201 more uniform and improving the structural stability.
[0026] In order to facilitate improving the structural strength of the steel beam 201, in this embodiment, preferably, the steel beam 201 includes a first steel plate 2011, a second steel plate 2013 and two channel steels 2012, the first steel plate 2011 is arranged above the second steel plate 2013, and the two channel steels 2012 are symmetrically arranged and welded between the first steel plate 2011 and the second steel plate 2013. The purpose is to form a steel beam 201 as a whole by welding the two channel steels 2012 between the first steel plate 2011 and the second steel plate 2013, thereby improving the structural strength of the steel beam 201.
[0027] In order to facilitate further improving the structural stability, in this embodiment, preferably, a screw 10 is implanted in the cantilevered floating platform 8, and the top of the screw 10 passes through the concrete pier 9 and the channel steel 2012 in turn and is connected to the nut 11 through a thread. The purpose is to provide a strip groove on the channel steel 2012, and when one end of the steel beam 201 is inserted into the installation groove 3, the top of the screw 10 passes through the strip groove of the channel steel 2012, and then the nut 11 is screwed into the screw 10, and then the steel beam 201 is locked and fixed to the upper side of the concrete pier 9, thereby further improving the structural stability.
[0028] In order to facilitate further improving the structural stability, in this embodiment, preferably, a second concrete filling body 12 surrounding the channel steel 2012 is cast on the upper side of the concrete pier 9. The purpose is to cast the second concrete filling body 12 on the upper side of the concrete pier 9, so that the second concrete filling body 12 forms an integral connection with the concrete pier 9 after solidification, and then the channel steel 2012 is surrounded, pressed and fixed by the second concrete filling body 12, thereby improving the structural stability.
[0029] In order to facilitate operation and maintenance, in this embodiment, preferably, a patterned steel plate 13 is connected to the upper side of the steel frame platform 2, and two avoidance holes are provided on the patterned steel plate 13. The voltage transformer support 6 and the lightning arrester support 7 pass through the two avoidance holes respectively. The purpose is to form an inspection platform by laying the patterned steel plate 13, which is convenient for the staff to stand on the patterned steel plate 13 to carry out operation and maintenance of the equipment. In addition, the patterned steel plate 13 is provided with anti-slip ridges to prevent the staff from slipping, thereby improving safety.
[0030] In order to improve the strength of the connection structure between two adjacent steel beams 201, in this embodiment, preferably, the long steel strip 5 is an angle steel.
[0031] In order to facilitate and improve safety, in this embodiment, preferably, a fence 14 is provided on the outside of the patterned steel plate 13. The purpose is to provide a fence 14 on the outside of the maintenance platform formed by the patterned steel plate 13 to ensure the safety of the staff and prevent the staff from falling from the maintenance platform.
[0032] Working principle and usage process of the utility model: First, a mounting groove 3 is hollowed out on the wall 1, and then the two bottom ends of the U-shaped steel bar 202 are implanted into the wall 1 below the mounting groove 3. One end of the steel beam 201 is inserted into the mounting groove 3. At the same time, the top of the screw 10 passes through the strip-shaped groove of the channel steel 2012. Then, by screwing the nut 11 onto the screw 10, the middle part of the steel beam 201 is locked and fixed on the upper side of the concrete pier 9. Then, the steel beam 201 is welded to the inner lower side of the U-shaped steel bar 202 to form the fixation of the end of the steel beam 201. After welding, the first concrete filling body 4 is poured into the mounting groove 3, and the second concrete filling body 12 is poured on the upper side of the concrete pier 9 to further press and fix the steel beam 201. Finally, the voltage transformer support 6 and the lightning arrester support 7 are installed on the upper side of the steel beam 201 to improve the structural stability and safety reliability, which is applicable to the situation where the width of the cantilever balcony is limited and meets the requirements of electrical safety distance.
[0033] Finally, it should be noted that the above are only the preferred examples of the utility model and are not used to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included within the protection scope of the utility model.
Claims
1. A structure for modifying outdoor equipment support pillars, comprising a wall (1), characterized in that: It further includes a steel frame platform (2), the steel frame platform (2) includes steel beams (201) and U-shaped steel bars (202), an installation groove (3) is formed on the wall (1), one end of the steel beam (201) is inserted into the installation groove (3), both bottom ends of the U-shaped steel bar (202) are implanted into the wall (1), and the lower side inside it is welded to the steel beam (201). A first concrete filling body (4) that surrounds the steel beam (201) is poured in the installation groove (3). A number of steel beams (201) are arranged, and adjacent two steel beams (201) are connected by long steel bars (5). A voltage transformer support (6) and a lightning arrester support (7) arranged on one side of the voltage transformer support (6) are installed on the upper side of the steel beam (201).
2. The outdoor equipment support reconstruction structure according to claim 1 is characterized in that: A cantilevered floating platform (8) is connected to the outside of the wall (1), and a number of concrete piers (9) are connected to the top of the cantilevered floating platform (8), and the concrete piers (9) are abutted against the lower side of the steel beam (201).
3. The outdoor equipment support reconstruction structure according to claim 2 is characterized in that: The steel beam (201) includes a first steel plate (2011), a second steel plate (2013) and two channel steels (2012). The first steel plate (2011) is arranged above the second steel plate (2013). The two channel steels (2012) are symmetrically arranged and are both welded between the first steel plate (2011) and the second steel plate (2013).
4. The outdoor equipment support reconstruction structure according to claim 3 is characterized by: A screw rod (10) is implanted in the cantilevered floating platform (8), and the top of the screw rod (10) sequentially passes through the concrete pier (9) and the channel steel (2012) and is threadedly connected with a nut (11).
5. The outdoor equipment support reconstruction structure according to claim 4 is characterized in that: A second concrete filling body (12) that surrounds the channel steel (2012) is poured on the upper side of the concrete pier (9).
6. The outdoor equipment support reconstruction structure according to claim 1 is characterized in that: A checkered steel plate (13) is connected to the upper side of the steel frame platform (2). There are two avoidance holes on the checkered steel plate (13), and the voltage transformer support (6) and the lightning arrester support (7) respectively pass through the two avoidance holes.
7. The outdoor equipment support reconstruction structure according to claim 1 is characterized by: The long steel bar (5) is an angle steel.
8. The outdoor equipment support reconstruction structure according to claim 6, characterized in that: A fence (14) is arranged on the outside of the checkered steel plate (13).