Plugging structure for converter transformer valve hall sleeve

Abstract

The utility model discloses a plugging structure for a converter transformer valve hall sleeve. The plugging structure comprises a converter transformer valve hall building wall. The limiting frame is pulled downwards, the limiting frame loses fixation on the clamping plate, due to the fact that the gravity center of the top of the clamping plate is forward, the clamping plate can be automatically separated from the interior of the clamping groove, the high-reliability installation limiting beam loses fixation, the right side of the high-reliability installation limiting beam is pushed to rotate upwards, and after the high-reliability installation limiting beam rotates by 90 degrees, the clamping plate can be automatically separated from the interior of the clamping groove. The high-reliability installation limiting beam is separated from the sealing plate with the high plugging airtightness, the handle capable of being pulled rapidly can be pulled to rapidly drive the sealing plate with the high plugging airtightness to be separated from the casing pipe body, during installation, installation can be completed by reverse operation of the disassembling steps, consumed time is short, and therefore the advantage of rapid disassembling and assembling is achieved; the temporary plugging installation structure is simple, the time consumed in the installation and disassembly process is short, and the use effect of the plugging structure at the converter transformer valve hall sleeve is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plugging structures, in particular to a plugging structure for the bushing at the valve hall of a converter transformer. Background Technique

[0002] The valve hall of a converter transformer is an important place in a high-voltage DC power transmission system;

[0003] A converter transformer (abbreviated as "converter transformer") is a key device for realizing the conversion between AC and DC electrical energy in a DC power transmission system. The valve hall of a converter transformer is a building space dedicated to installing relevant equipment such as converter transformers and converter valves;

[0004] In the valve hall of a converter transformer, the converter valve plays a key role in converting AC to DC (rectification) or DC to AC (inversion), and the converter transformer is responsible for realizing the voltage conversion and electrical isolation between the AC power grid and the converter valve;

[0005] In some large-scale DC power transmission projects, special valve halls for converter transformers are provided to ensure the stable operation of the entire DC power transmission system.

[0006] In some areas, there are strong winds all year round. After the valve hall of the substation is completed, the converter transformer cannot be installed at one time. During the winter break, temporary plugging is required to protect the valve hall. The traditional temporary plugging installation structure is complex. During the installation and disassembly process, a long time is required, increasing the empty time of the valve hall, resulting in a great impact of winter winds and cold weather on the valve hall, and reducing the use effect of the plugging structure at the bushing of the converter transformer valve hall. Content of the Utility Model

[0007] To solve the problems raised in the above background technique, the purpose of the present utility model is to provide a plugging structure for the bushing at the valve hall of a converter transformer, which has the advantage of quick disassembly and assembly, and solves the problems that the traditional temporary plugging installation structure is complex, a long time is required during the installation and disassembly process, the empty time of the valve hall increases, resulting in a great impact of winter winds and cold weather on the valve hall, and reducing the use effect of the plugging structure at the bushing of the converter transformer valve hall.

[0008] To achieve the above object, the present utility model provides the following technical solutions: A sealing structure for the bushing at the valve hall of a converter transformer, including the building wall of the converter transformer valve hall. Inside the building wall of the converter transformer valve hall, a bushing main body is fixedly connected. At the four corners on the front side of the bushing main body, limiting plate members are fixedly connected. Inside the limiting plate members, a highly airtight sealing plate for plugging is provided. The rear side of the highly airtight sealing plate for plugging contacts the front side of the bushing main body. On the front side of the highly airtight sealing plate for plugging, a highly reliable installation limiting beam is provided. The left side of the highly reliable installation limiting beam is rotationally connected to the front side of the building wall of the converter transformer valve hall through a hinge. On both sides of the front side of the highly airtight sealing plate for plugging, reinforcing columns are fixedly connected. The reinforcing columns are clamped inside the highly reliable installation limiting beam. On the front side of the highly reliable installation limiting beam, an anti-loosening mechanism is clamped. On the front side of the reinforcing column, a quickly pullable handle is fixedly connected.

[0009] Preferably, as the present utility model, the anti-loosening mechanism includes a clamping groove. Inside the clamping groove, a clamping plate is clamped. The bottom of the clamping plate is rotationally connected to the front side of the highly airtight sealing plate for plugging through a hinge. On the front side of the clamping plate, a limiting frame is provided. On both sides of the limiting frame, sliding rods are slidably connected. The top and bottom of the sliding rods are fixedly connected to the front side of the highly airtight sealing plate for plugging through connecting blocks. On the surface of the sliding rods, springs are fixedly connected. The top of the springs is fixedly connected to the bottom of the limiting frame.

[0010] Preferably, as the present utility model, on the right side of the front side of the highly reliable installation limiting beam, a rotating push handle is fixedly connected. The rotating push handle is located on the front side of the highly airtight sealing plate for plugging.

[0011] Preferably, as the present utility model, on the surface of the rotating push handle, an anti-slip rubber sleeve with increased resistance is fixedly connected. The anti-slip rubber sleeve with increased resistance is located on the front side of the highly airtight sealing plate for plugging.

[0012] Preferably, as the present utility model, on the right side of the bottom of the highly reliable installation limiting beam, a reinforcing anti-driving force support member is provided. The rear side of the reinforcing anti-driving force support member is fixedly connected to the front side of the building wall of the converter transformer valve hall.

[0013] Preferably, as the present utility model, on the front side of the limiting frame, a quick-touch buckle groove is provided. The quick-touch buckle groove is located at the bottom of the highly reliable installation limiting beam.

[0014] Preferably, as the present utility model, at the bottom of the inner wall of the quick-touch buckle groove, an arched heightening convex strip is fixedly connected. The arched heightening convex strip is located inside the sliding rod.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. By pulling down the limit frame of the present utility model, the fixation of the clamping plate by the limit frame is lost. Since the center of gravity at the top of the clamping plate is forward, the clamping plate can automatically disengage from the inside of the card slot, and the highly reliable installation limit beam loses its fixation. Push the right side of the highly reliable installation limit beam to rotate upward. After the highly reliable installation limit beam rotates 90 degrees, the highly reliable installation limit beam separates from the airtight sealing plate for plugging. Pull the quick pull handle to quickly drive the airtight sealing plate for plugging to separate from the sleeve body. During installation, the above disassembly steps can be reversed to complete the installation. The time consumed during this process is short, thus having the advantage of quick disassembly and assembly. The temporary plugging installation structure is simple, and the time required for installation and disassembly is short, improving the use effect of the plugging structure at the sleeve of the converter valve hall.

[0017] 2. By setting the anti-loosening mechanism in the present utility model, the airtight sealing plate for plugging can be fixed, preventing it from loosening during use and ensuring that the airtight sealing plate for plugging cannot stably cooperate with the sleeve body, thereby improving the sealing stability of the sleeve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present utility model;

[0019] Figure 2 is a three-dimensional view of the quick pull handle of the present utility model;

[0020] Figure 3 is a three-dimensional sectional view of the present utility model;

[0021] Figure 4 is a three-dimensional view of the sleeve body of the present utility model;

[0022] Figure 5 is a three-dimensional view of the limit plate member of the present utility model.

[0023] In the figure: 1, building wall of the converter valve hall; 2, sleeve body; 3, limit plate member; 4, airtight sealing plate for plugging; 5, highly reliable installation limit beam; 6, reinforcing column; 7, anti-loosening mechanism; 71, card slot; 72, clamping plate; 73, limit frame; 74, sliding rod; 75, spring; 8, quick pull handle; 9, rotating push handle; 10, anti-slip rubber sleeve with increased resistance; 11, reinforcing anti-driving force support member; 12, quick touch buckle groove; 13, arched heightening rib. DETAILED DESCRIPTION OF THE INVENTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] As Figures 1 to 5 shown, a plugging structure for the bushing at the valve hall of a converter transformer provided by the present utility model includes a building wall 1 of the converter transformer valve hall. A bushing main body 2 is fixedly connected inside the building wall 1 of the converter transformer valve hall. Limit plate members 3 are fixedly connected to the four corners on the front side of the bushing main body 2. A plugging airtight strong sealing plate 4 is arranged inside the limit plate members 3. The rear side of the plugging airtight strong sealing plate 4 is in contact with the front side of the bushing main body 2. A highly reliable installation limit beam 5 is arranged on the front side of the plugging airtight strong sealing plate 4. The left side of the highly reliable installation limit beam 5 is rotatably connected to the front side of the building wall 1 of the converter transformer valve hall through a hinge. Reinforcing columns 6 are fixedly connected to both sides on the front side of the plugging airtight strong sealing plate 4. The reinforcing columns 6 are clamped inside the highly reliable installation limit beam 5. A loosening prevention mechanism 7 is clamped on the front side of the highly reliable installation limit beam 5. A quickly pullable handle 8 is fixedly connected to the front side of the reinforcing column 6.

[0026] Referring Figure 3 , the loosening prevention mechanism 7 includes a card slot 71. A card plate 72 is clamped inside the card slot 71. The bottom of the card plate 72 is rotatably connected to the front side of the plugging airtight strong sealing plate 4 through a hinge. A limit frame 73 is arranged on the front side of the card plate 72. Slide rods 74 are slidably connected to both sides of the limit frame 73. The top and bottom of the slide rods 74 are fixedly connected to the front side of the plugging airtight strong sealing plate 4 through connection blocks. Springs 75 are fixedly connected to the surfaces of the slide rods 74. The tops of the springs 75 are fixedly connected to the bottom of the limit frame 73.

[0027] As a technical optimization scheme of the present utility model, by arranging the loosening prevention mechanism 7, the plugging airtight strong sealing plate 4 can be fixed, avoiding loosening of the plugging airtight strong sealing plate 4 during use, resulting in the inability of the plugging airtight strong sealing plate 4 to stably cooperate with the bushing main body 2, and improving the sealing stability of the bushing main body 2.

[0028] Referring Figure 3 , a rotary push handle 9 is fixedly connected to the right side on the front side of the highly reliable installation limit beam 5. The rotary push handle 9 is located on the front side of the plugging airtight strong sealing plate 4.

[0029] As a technical optimization solution of the present utility model, by providing a rotating push handle 9, it is convenient for the user to pull the highly reliable installation limit beam 5 to rotate, avoiding the difficulty of pinching the highly reliable installation limit beam 5 during the rotation process, resulting in the difficulty of pulling the highly reliable installation limit beam 5, and improving the control efficiency of the highly reliable installation limit beam 5.

[0030] Reference Figure 2 , a resistance-increasing and anti-slip rubber sleeve 10 is fixedly connected to the surface of the rotating push handle 9, and the resistance-increasing and anti-slip rubber sleeve 10 is located on the front side of the highly airtight sealing plate 4.

[0031] As a technical optimization solution of the present utility model, by providing the resistance-increasing and anti-slip rubber sleeve 10, the friction between the rotating push handle 9 and the user can be increased, avoiding the small friction between the rotating push handle 9 and the user, resulting in the inner side sliding between the rotating push handle 9 and the user, and improving the stability of the rotating push handle 9.

[0032] Reference Figure 2 , a strengthening anti-driving force support member 11 is provided on the right side of the bottom of the highly reliable installation limit beam 5, and the rear side of the strengthening anti-driving force support member 11 is fixedly connected to the front side of the converter transformer valve hall building wall 1.

[0033] As a technical optimization solution of the present utility model, by providing the strengthening anti-driving force support member 11, the right side of the highly reliable installation limit beam 5 can be strengthened, avoiding the weak limit strength on the right side of the highly reliable installation limit beam 5 when the highly airtight sealing plate 4 is manually pushed by external force, and improving the working stability of the highly reliable installation limit beam 5.

[0034] Reference Figure 3 , a quick-touch buckle groove 12 is provided on the front side of the limit frame 73, and the quick-touch buckle groove 12 is located at the bottom of the highly reliable installation limit beam 5.

[0035] As a technical optimization solution of the present utility model, by providing the quick-touch buckle groove 12, it is convenient for the user to buckle with the limit frame 73, avoiding the smooth surface of the limit frame 73, resulting in the difficulty for the user to pull down, and improving the use convenience of the limit frame 73.

[0036] Reference Figure 3 , an arched heightening convex strip 13 is fixedly connected to the bottom of the inner wall of the quick-touch buckle groove 12, and the arched heightening convex strip 13 is located inside the sliding rod 74.

[0037] As a technical optimization solution of the present utility model, by providing the arched heightening convex strip 13, the friction of the inner wall of the quick-touch buckle groove 12 can be increased, avoiding the sliding between the user's finger and the quick-touch buckle groove 12, and improving the use stability of the quick-touch buckle groove 12.

[0038] Working principle and usage process of the utility model: During use, in the figure, it is the state where the highly airtight sealing plate 4 and the sleeve body 2 are tightly connected. When it is necessary to quickly remove the highly airtight sealing plate 4 from the surface of the sleeve body 2, pull down the limit frame 73. The limit frame 73 loses the fixation of the clamping plate 72. Due to the center of gravity at the top of the clamping plate 72 moving forward, the clamping plate 72 can automatically disengage from the inside of the clamping groove 71, and the highly reliable installation limit beam 5 loses its fixation. Push the right side of the highly reliable installation limit beam 5 to rotate upward. After the highly reliable installation limit beam 5 rotates 90 degrees, the highly reliable installation limit beam 5 separates from the highly airtight sealing plate 4. Pull the quickly pullable handle 8 to quickly drive the separation of the highly airtight sealing plate 4 and the sleeve body 2. During installation, just perform the above disassembly steps in reverse to complete the installation. The time consumed during this period is short, thus having the advantage of quick disassembly and assembly.

[0039] In summary: For the plugging structure used at the sleeve of the converter transformer valve hall, through the combined use of the building wall 1 of the converter transformer valve hall, the sleeve body 2, the limit plate member 3, the highly airtight sealing plate 4, the highly reliable installation limit beam 5, the reinforcement column 6, the anti-loosening mechanism 7, and the quickly pullable handle 8, it solves the problems that the temporary plugging installation structure is complex, and during the installation and disassembly process, a relatively long time is required, the emptying time of the valve hall increases, resulting in a great impact of strong winds and cold weather in winter on the valve hall, and reducing the use effect of the plugging structure at the sleeve of the converter transformer valve hall.

[0040] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0041] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A plugging structure for the bushing at the converter transformer valve hall, comprising a building wall (1) of the converter transformer valve hall, characterized in that: Inside the wall (1) of the converter transformer valve hall building, a casing body (2) is fixedly connected. At the four corners on the front side of the casing body (2), limiting plate members (3) are fixedly connected. Inside the limiting plate members (3), a sealing plate (4) with strong airtightness for plugging is arranged. The rear side of the sealing plate (4) with strong airtightness for plugging contacts the front side of the casing body (2). On the front side of the sealing plate (4) with strong airtightness for plugging, a highly reliable installation limiting beam (5) is arranged. The left side of the highly reliable installation limiting beam (5) is rotatably connected to the front side of the wall (1) of the converter transformer valve hall building through a hinge. On both sides of the front side of the sealing plate (4) with strong airtightness for plugging, reinforcement columns (6) are fixedly connected. The reinforcement columns (6) are clamped inside the highly reliable installation limiting beam (5). On the front side of the highly reliable installation limiting beam (5), a loosening prevention mechanism (7) is clamped. On the front side of the reinforcement column (6), a quickly pullable handle (8) is fixedly connected.

2. The plugging structure for the bushing at the converter transformer valve hall according to claim 1, wherein: The loosening prevention mechanism (7) includes a card slot (71). Inside the card slot (71), a card plate (72) is clamped. The bottom of the card plate (72) is rotatably connected to the front side of the sealing plate (4) with strong airtightness for plugging through a hinge. On the front side of the card plate (72), a limiting frame (73) is arranged. On both sides of the limiting frame (73), sliding rods (74) are slidably connected. The top and bottom of the sliding rods (74) are fixedly connected to the front side of the sealing plate (4) with strong airtightness for plugging through connection blocks. On the surface of the sliding rods (74), springs (75) are fixedly connected. The top of the springs (75) is fixedly connected to the bottom of the limiting frame (73).

3. The plugging structure for the converter transformer valve hall bushing according to claim 1, characterized in that: On the right side of the front side of the highly reliable installation limiting beam (5), a rotary pushing handle (9) is fixedly connected. The rotary pushing handle (9) is located on the front side of the sealing plate (4) with strong airtightness for plugging.

4. A plugging structure for the bushing at the converter transformer valve hall according to claim 3, characterized in that: On the surface of the rotary pushing handle (9), an anti-slip rubber sleeve (10) with increased resistance is fixedly connected. The anti-slip rubber sleeve (10) with increased resistance is located on the front side of the sealing plate (4) with strong airtightness for plugging.

5. A plugging structure for the bushing at the valve hall of a converter transformer according to claim 1, characterized in that: On the right side of the bottom of the highly reliable installation limiting beam (5), a strengthening anti-driving force support member (11) is arranged. The rear side of the strengthening anti-driving force support member (11) is fixedly connected to the front side of the wall (1) of the converter transformer valve hall building.

6. The plugging structure for the converter transformer valve hall bushing according to claim 2, characterized in that: On the front side of the limiting frame (73), a quick-touch buckle groove (12) is formed. The quick-touch buckle groove (12) is located at the bottom of the highly reliable installation limiting beam (5).

7. A plugging structure for the bushing at the valve hall of a converter transformer according to claim 6, characterized in that: At the bottom of the inner wall of the quick-touch buckle groove (12), an arched heightening convex strip (13) is fixedly connected. The arched heightening convex strip (13) is located inside the sliding rod (74).

Images