Compact SF6 all-insulated and all-sealed ring main unit

Abstract

The utility model discloses a compact SF6 all-insulated and all-sealed ring main unit, which comprises a cabinet body, the bottom of the cabinet body is fixedly connected with a supporting seat, the right end of the cabinet body is fixedly connected with a fixed box, the inside of the left end of the fixed box is fixedly connected with an air outlet, the air outlet is fixedly connected with the cabinet body, the inside of the cabinet body is provided with a cable, and the cable is fixedly connected with the fixed box. The outer side of the cable is slidably sleeved with a fixing base, the fixing base is fixedly connected with the cabinet body, and a sealing ring is fixedly connected into the cabinet body and makes contact with the cable. According to the utility model, by designing the gas filling port, SF6 can be input into the cabinet body, when the cabinet body is filled with gas, the gas can be input into the fixed box through the gas outlet, and when the gas pressure in the fixed box is too high, the gas can be discharged through the fixed box, so that the SF6 can be completely added when the SF6 is added into the cabinet body; meanwhile, the sealing performance of the ring main unit can be verified, and the use effect of the ring main unit can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ring network cabinets, in particular to a compact SF6 fully-insulated and fully-sealed ring network cabinet. Background Art

[0002] The utility model patent with the patent authorization announcement number CN211266247U discloses a highly sealed SF6 fully insulated ring network cabinet, including a box body, the right side of the bottom of the inner cavity of the box body is fixedly connected to the ring network cabinet body, the inner cavity of the ring network cabinet body is fixedly connected to a partition, the left side of the top of the partition is connected to a first wiring pipe, and the top of the first wiring pipe is connected to a second wiring pipe. The utility model solves the problem that the existing highly sealed SF6 fully insulated ring network cabinet usually cannot monitor the internal SF6 gas, and the heat dissipation is usually poor, so that the SF6 may crack and explode due to overload and heating of internal electrical components.

[0003] In the above-mentioned prior art, during the use of the ring main unit, SF6 needs to be added to the cabinet body. However, during the process of adding SF6, it is impossible to ensure that the ring main unit is completely filled with SF6, which will affect the subsequent use of the ring main unit. In addition, the ring main unit is provided with multiple groups of cables, which are relatively soft and inconvenient to comb the cable bundles. The cables are easily entangled with each other, which will affect the subsequent search and use of the cables. Therefore, improvements are needed. Utility Model Content

[0004] The utility model aims to provide a compact SF6 fully insulated and fully sealed ring network cabinet, which solves the problem of inconvenience in ensuring that the interior of the ring network cabinet is filled with gas during gas filling, and also solves the problem of inconvenience in arranging cable bundles.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a compact SF6 fully insulated and fully sealed ring network cabinet, comprising a cabinet body, a support seat fixedly connected to the bottom of the cabinet body, a fixed box fixedly connected to the right end of the cabinet body, an air outlet fixedly connected to the left end of the fixed box, the air outlet is fixedly connected to the cabinet body, cables are arranged inside the cabinet body, a fixed seat is slidably sleeved on the outer side of the cable, the fixed seat is fixedly connected to the cabinet body, a sealing ring is fixedly connected to the inside of the cabinet body, the sealing ring is in contact with the cable, a gas filling port is arranged on the top of the cabinet body, an exhaust mechanism is arranged on the fixed box, and a wire management mechanism is arranged on the cable.

[0006] Preferably, the number of the support seats is four, and the four support seats are evenly distributed at the bottom of the cabinet. By designing the support seats, the overall structure can be supported.

[0007] Preferably, the exhaust mechanism includes a fixed plate, the inner side wall of the fixed box is fixedly connected with the fixed plate, the interior of the fixed plate is slidably sleeved with a connecting pipe, the top of the connecting pipe is fixedly connected with a plug, the plug is slidably connected to the fixed box, the bottom of the plug is fixedly connected with two symmetrically distributed connecting rods, the outer side of the connecting rod is fixedly connected with a guide rod, the guide rod is slidably connected to the fixed box, and a first spring is arranged inside the fixed box. By designing the exhaust mechanism, it can be verified whether the interior of the ring network cabinet is filled with gas.

[0008] Preferably, one end of the first spring is fixedly connected to the fixed box, and the other end of the first spring is fixedly connected to the guide rod. By designing the first spring, the force of the first spring can act on the guide rod.

[0009] Preferably, the cable management mechanism includes a support block, the bottom of the cable contacts the support block, the bottom of the support block is fixedly connected to a support rod, the support rod is fixedly connected to a fixed seat, the top of the cable contacts a pressure block, the top of the pressure block is fixedly connected to a slide rod, the slide rod is slidably connected to the fixed seat, the outer side of the slide rod is fixedly sleeved with a fixed block, and the outer side of the slide rod is provided with a second spring. By designing the cable management mechanism, the cables can be separated and combed.

[0010] Preferably, one end of the second spring is fixedly connected to the fixed block, and the other end of the second spring is fixedly connected to the fixed seat. By designing the second spring, the force of the second spring can act on the fixed block.

[0011] Preferably, a limit ring is fixedly connected to the top of the slide bar, and the limit ring is in contact with the fixing seat. By designing the limit ring, the slide bar can be prevented from separating from the fixing seat.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model can input SF6 into the cabinet by designing the gas filling port. When the cabinet is full of gas, it will be input into the fixed box through the gas outlet. When the gas pressure inside the fixed box is too high, the gas can be discharged through the fixed box. When adding SF6 into the cabinet, it can ensure that SF6 is added completely. At the same time, the sealing of the ring network cabinet can be verified, which can improve the use effect of the ring network cabinet.

[0014] 2. The utility model designs the functions of the support block and the pressure block. The contact between the support block and the pressure block and the cable can clamp and position the cable, separate and comb the cables, prevent the cables from being entangled with each other, and facilitate the subsequent search and use of different cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The overall structure of the utility model is three-dimensional Figure 1 ;

[0016] Figure 2 For this utility model Figure 1 A three-dimensional cross-sectional view of the local structure;

[0017] Figure 3 For this utility model Figure 2 A magnified image of point A;

[0018] Figure 4 The overall structure of the utility model is three-dimensional Figure 2 ;

[0019] Figure 5 For this utility model Figure 4 A three-dimensional cross-sectional view of the local structure;

[0020] Figure 6 For this utility model Figure 5 Enlarged view of point B.

[0021] In the figure: 1. cabinet; 2. support base; 3. fixing box; 4. air outlet; 5. cable; 6. fixing base; 7. sealing ring; 8. exhaust mechanism; 9. wire management mechanism; 10. air filling port; 81. fixing plate; 82. connecting pipe; 83. plug; 84. connecting rod; 85. guide rod; 86. first spring; 91. support block; 92. support rod; 93. pressure block; 94. sliding rod; 95. fixing block; 96. second spring; 97. limiting ring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1 , Figure 2 , Figure 4 , Figure 5A compact SF6 fully insulated and fully sealed ring network cabinet comprises a cabinet 1, a support seat 2 is fixedly connected to the bottom of the cabinet 1, and the number of the support seats 2 is four. The four support seats 2 are evenly distributed at the bottom of the cabinet 1. By designing the support seats 2, the overall structure can be supported. A fixed box 3 is fixedly connected to the right end of the cabinet 1, and an air outlet 4 is fixedly connected to the left end of the fixed box 3. The air outlet 4 is fixedly connected to the cabinet 1. A cable 5 is arranged inside the cabinet 1. A fixed seat 6 is slidably sleeved on the outer side of the cable 5. The fixed seat 6 is fixedly connected to the cabinet 1. A sealing ring 7 is fixedly connected to the inside of the cabinet 1. The sealing ring 7 contacts the cable 5. A gas filling port 10 is arranged on the top of the cabinet 1, an exhaust mechanism 8 is arranged on the fixed box 3, and a wire management mechanism 9 is arranged on the cable 5.

[0024] See also Figure 1 , Figure 2 , Figure 3 The exhaust mechanism 8 includes a fixed plate 81, the inner side wall of the fixed box 3 is fixedly connected with the fixed plate 81, the interior of the fixed plate 81 is slidably sleeved with a connecting pipe 82, the top of the connecting pipe 82 is fixedly connected with a plug 83, the plug 83 is slidably connected to the fixed box 3, the bottom of the plug 83 is fixedly connected with two symmetrically distributed connecting rods 84, the outer side of the connecting rod 84 is fixedly connected with a guide rod 85, the guide rod 85 is slidably connected to the fixed box 3, and a first spring 86 is arranged inside the fixed box 3, one end of the first spring 86 is fixedly connected to the fixed box 3, and the other end of the first spring 86 is fixedly connected to the guide rod 85. By designing the first spring 86, the force of the first spring 86 can act on the guide rod 85. By designing the exhaust mechanism 8, it can be verified whether the interior of the ring network cabinet is filled with gas.

[0025] See also Figure 4 , Figure 5 , Figure 6 The cable management mechanism 9 includes a support block 91, the bottom of the cable 5 contacts with the support block 91, the bottom of the support block 91 is fixedly connected with a support rod 92, the support rod 92 is fixedly connected to the fixed seat 6, the top of the cable 5 contacts with a pressure block 93, the top of the pressure block 93 is fixedly connected with a slide bar 94, the slide bar 94 is slidably connected to the fixed seat 6, the outer side of the slide bar 94 is fixedly sleeved with a fixed block 95, the outer side of the slide bar 94 is provided with a second spring 96, one end of the second spring 96 is fixedly connected to the fixed block 95, and the other end of the second spring 96 is fixedly connected to the fixed seat 6. By designing the second spring 96, the force of the second spring 96 can act on the fixed block 95, the top of the slide bar 94 is fixedly connected to a limiting ring 97, the limiting ring 97 is in contact with the fixed seat 6, and by designing the limiting ring 97, the slide bar 94 can be prevented from separating from the fixed seat 6. By designing the cable management mechanism 9, the cables 5 can be separated and combed.

[0026] The specific implementation process of the utility model is as follows: during use, when SF6 needs to be added to the inside of the ring network cabinet, it is added to the inside of the cabinet 1 through the gas filling port 10, and the gas inside the cabinet 1 will be input into the fixed box 3 through the gas outlet 4. When the inside of the cabinet 1 is filled with gas, the continuous addition of SF6 will increase the internal pressure of the fixed box 3, and the gas will enter the inside of the connecting pipe 82. Then the gas will push the plug 83 and the connecting pipe 82 upward, and the plug 83 will drive the connecting rod 84 and the guide rod 85 to move upward, and the guide rod 85 will squeeze the first spring 86, so that the plug 83 extends out of the fixed box 3. At this time, the gas inside the fixed box 3 can be discharged through the fixed box 3. When gas is discharged through the fixed box 3, it means that the SF6 inside the cabinet 1 is completely filled. When the air pressure inside the fixed box 3 is reduced, the plug 83 will reset and re-seal the fixed box 3 under the elastic action of the first spring 86. Since a relatively large air pressure is required to push open the plug 83, the sealing of the cabinet body 1 can be ensured when gas is discharged through the fixed box 3, the sealing of the ring main unit can be verified, and the use effect of the ring main unit can be improved.

[0027] Through the action of the support block 91 and the pressure block 93, the contact between the support block 91 and the pressure block 93 and the cable 5 can clamp and position the cable 5, separate and comb the cables 5, prevent the cables 5 from being entangled with each other, and facilitate the subsequent search and use of different cables 5. By moving the pressure block 93 upward, the pressure block 93 can drive the slide bar 94 and the fixed block 95 to move upward, and the fixed block 95 will squeeze the second spring 96, so that the pressure block 93 is separated from the cable 5, and the cable 5 can be taken and used.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A compact SF6 fully insulated and fully sealed ring main unit, comprising a cabinet body (1), characterized in that: The bottom of the cabinet (1) is fixedly connected to a support seat (2), the right end of the cabinet (1) is fixedly connected to a fixing box (3), the left end of the fixing box (3) is fixedly connected to an air outlet (4), the air outlet (4) is fixedly connected to the cabinet (1), a cable (5) is arranged inside the cabinet (1), a fixing seat (6) is slidably sleeved on the outer side of the cable (5), the fixing seat (6) is fixedly connected to the cabinet (1), a sealing ring (7) is fixedly connected inside the cabinet (1), the sealing ring (7) is in contact with the cable (5), a gas filling port (10) is arranged on the top of the cabinet (1), an exhaust mechanism (8) is arranged on the fixing box (3), and a wire management mechanism (9) is arranged on the cable (5).

2. A compact SF6 fully insulated and fully sealed ring main unit according to claim 1, characterized in that: The number of the support seats (2) is four, and the four support seats (2) are evenly distributed at the bottom of the cabinet (1).

3. A compact SF6 fully insulated and fully sealed ring main unit according to claim 1, characterized in that: The exhaust mechanism (8) comprises a fixed plate (81), the inner side wall of the fixed box (3) is fixedly connected to the fixed plate (81), the interior of the fixed plate (81) is slidably sleeved with a connecting pipe (82), the top of the connecting pipe (82) is fixedly connected to a plug (83), the plug (83) is slidably connected to the fixed box (3), the bottom of the plug (83) is fixedly connected to two symmetrically distributed connecting rods (84), the outer side of the connecting rod (84) is fixedly connected to a guide rod (85), the guide rod (85) is slidably connected to the fixed box (3), and a first spring (86) is arranged inside the fixed box (3).

4. A compact SF6 fully insulated and fully sealed ring main unit according to claim 3, characterized in that: One end of the first spring (86) is fixedly connected to the fixed box (3), and the other end of the first spring (86) is fixedly connected to the guide rod (85).

5. A compact SF6 fully insulated and fully sealed ring main unit according to claim 1, characterized in that: The cable management mechanism (9) comprises a support block (91), the bottom of the cable (5) contacts the support block (91), the bottom of the support block (91) is fixedly connected to a support rod (92), the support rod (92) is fixedly connected to a fixed seat (6), the top of the cable (5) contacts a pressure block (93), the top of the pressure block (93) is fixedly connected to a slide bar (94), the slide bar (94) is slidably connected to the fixed seat (6), the outer side of the slide bar (94) is fixedly sleeved with a fixed block (95), and the outer side of the slide bar (94) is provided with a second spring (96).

6. A compact SF6 fully insulated and fully sealed ring main unit according to claim 5, characterized in that: One end of the second spring (96) is fixedly connected to the fixing block (95), and the other end of the second spring (96) is fixedly connected to the fixing seat (6).

7. A compact SF6 fully insulated and fully sealed ring main unit according to claim 5, characterized in that: The top of the sliding rod (94) is fixedly connected to a limiting ring (97), and the limiting ring (97) is in contact with the fixing seat (6).

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