A 15kv integrated node switchgear quick connector

Abstract

The utility model discloses a 15kV integrated node switchgear quick connector, including integrated node switch bushing, mounting flange, plug body and protection shell base, the integrated node switch bushing is equipped with the electrically conducting rod, is equipped with air channel and elastic air seal subassembly on the electrically conducting rod, is provided quick detachable bead lock between protection shell base and mounting flange, the emergency quick connector of the utility model is simple structure, convenient to use, and the staff can be through quick detachable bead lock structure, and the integrated node switch bushing and protection shell base are dismantled and installed to plug the electrically conducting rod mouthpiece quickly, and based on the structure setting of electrically conducting rod, when using, the connection place between the connector and the fitting of inserting the connector is connected in the cabinet, lets the protection gas also suffocates the connection place, and promotes the security.

Description

Technical Field

[0001] This utility model relates to the field of quick connector technology, specifically to a quick connector for a 15kV integrated node switchgear. Background Technology

[0002] When a backup switchgear unit is available, an extended emergency power quick-connect socket can be installed at the backup outgoing bushing to meet the emergency power needs of outdoor field operations. When power is needed, simply remove the quick-connect plug from the adapter end, insert the cable quick-connect plug into the interface, and rotate the clip to secure it. After power is used, unplug the cable quick-connect plug and replace the quick-connect plug for insulation sealing. Existing quick-connect socket structures have shortcomings, including the inevitable gaps between the connectors and various spare parts. These gaps at high-voltage conduction connections can easily generate electric arcs, posing a safety hazard. While plugging and unplugging when the power is off is generally safer, accidents or violations leading to poor contact or live operation can easily generate fault arcs, causing safety hazards. Utility Model Content

[0003] In view of the prior art, the purpose of this utility model is to provide a quick connector with an elastic sealing structure that utilizes the inert gas inside the safety gas cabinet to improve the working environment safety of the plug and socket connection by triggering the release of the gas seal.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a 15kV integrated node switchgear quick connector, including an integrated node switch sleeve, a mounting flange, a plug body, and a protective shell base. The integrated node switch sleeve is provided with a conductive rod, and the conductive rod is provided with an air passage and an elastic air seal assembly. A quick-release ball lock is provided between the protective shell base and the mounting flange.

[0005] As described above, the flexible gas seal assembly can block the gas passage, which connects to the inner cavity of the switch cabinet. During use, the environmentally friendly gas inside the switch cabinet can fill the connection point through the gas passage, thereby improving the safety of connection and plugging / unplugging.

[0006] As a further provision of the above solution, the conductive rod includes an inner rod and a detachable outer rod. The inner rod and the detachable outer rod are threaded together and cooperate to form an elastic movable cavity. The elastic air seal assembly is disposed in the elastic movable cavity.

[0007] As a further provision of the above solution, the elastic air seal assembly includes an air seal spring, a I-shaped component, and an air seal rubber ring. The I-shaped component is disposed opposite to the inclined surface disposed inside the air passage. The I-shaped component is provided with air holes. The air seal spring is used to push the I-shaped component, along with the air seal rubber ring, to abut against the inclined surface to block the air passage.

[0008] As a further feature of the above solution, one end of the conductive rod is provided with a socket connecting to the air passage, and the other side of the air passage penetrating the conductive rod is provided with an installation port and a radial hole, and the elastic air seal assembly is located on one side of the socket.

[0009] As a further feature of the above solution, the quick-release ball lock includes a mounting ring, a locking ring sleeve, and a top spring that pushes the locking ring sleeve to move axially. The locking ring sleeve is fitted onto the mounting flange, which is also provided with a ball groove and a ball component. A clearance groove and a limiting part are provided on the locking ring sleeve.

[0010] As a further provision of the above solution, the protective shell base includes a bottom shell and a limiting sleeve for mounting the plug body. The bottom shell and the limiting sleeve are threaded together, and the limiting sleeve is also provided with a driving surface and a limiting groove.

[0011] Beneficial effects: The emergency quick connector of this utility model has a simple structure and is easy to use. Workers can quickly disassemble and install the integrated node switch sleeve and protective shell base to block the conductive rod socket through the quick-release bead lock structure. Based on the structure of the conductive rod, during use, the connection between the connector and the fitting inserted into the connector is connected to the cabinet, allowing protective gas to fill the connection, thus improving safety. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the quick connector structure of this utility model.

[0013] Figure 2 This is a schematic cross-sectional view of the internal structure of this embodiment.

[0014] Figure 3 This is a schematic diagram of the component structure in this embodiment.

[0015] Reference numerals: 1. Integrated node switch sleeve; 2. Mounting flange; 3. Plug body; 4. Protective shell base; 41. Bottom shell; 42. Limiting sleeve; 43. Limiting groove; 44. Drive surface; 5. Conductive rod; 51. Air passage; 52. Inner rod; 53. Removable outer rod; 54. Elastic movable cavity; 55. Inclined surface; 58. Socket; 6. Elastic air seal assembly; 61. Air seal spring; 62. I-shaped part; 63. Air seal rubber ring; 64. Air hole; 68. Mounting port; 69. Radial hole; 7. Quick-release ball lock; 71. Mounting ring; 72. Locking ring sleeve; 73. Top spring; 74. Ball groove; 75. Relief groove; 76. Limiting part; 77. Ball component; 78. L-shaped groove; 79. Pin. Detailed Implementation

[0016] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, where there is no conflict, the embodiments and features described in these embodiments can be combined with each other.

[0017] like Figure 1-3 The 15kV integrated node switchgear quick connector shown includes an integrated node switch sleeve 1, a mounting flange 2, a plug body 3, and a protective shell base 4. The integrated node switch sleeve 1 is provided with a conductive rod 5, and the conductive rod 5 is provided with an air passage 51 and an elastic air seal assembly 6. A quick-release ball lock 7 is provided between the protective shell base 4 and the mounting flange 2.

[0018] As a further provision of the above scheme, the conductive rod 5 includes an inner rod 52 and a detachable outer rod 53. The inner rod 52 and the detachable outer rod 53 are threadedly fixed, and the two cooperate to form an elastic movable cavity 54. The elastic air seal assembly 6 is disposed in the elastic movable cavity 54.

[0019] As a further provision of the above scheme, the elastic air seal assembly 6 includes an air seal spring 61, a I-shaped component 62, and an air seal ring 63. The I-shaped component 62 is made of a non-metallic insulating material, such as ceramic. The I-shaped component 62 is also provided with a mounting groove for the air seal ring 63. In use, the air seal ring 63 is fitted into the mounting groove. Under the pressure of the air seal spring 61, the air seal ring 63 abuts against the inclined surface 55 of the inner wall of the air passage 51 and deforms based on the large pressure of the air seal spring 61, forming an air seal on the air passage 51. The I-shaped component 62 is arranged opposite to the inclined surface 55 provided in the air passage 51. The I-shaped component 62 is provided with an air hole 64. The air seal spring 61 is used to push the I-shaped component 62 to bring the air seal ring 63 to abut against the inclined surface 55 to seal the air passage 51.

[0020] As a further provision of the above scheme, one end of the conductive rod 5 is provided with a socket 58 connecting to the air passage 51, and the other side of the air passage 51 that passes through the conductive rod 5 is provided with an installation port 68 and a radial hole 69. The elastic air seal assembly 6 is located on one side of the socket 58.

[0021] As a further feature of the above solution, the quick-release ball lock 7 includes a mounting ring 71, a locking ring sleeve 72, and a top spring 73 that pushes the locking ring sleeve 72 to move axially. The locking ring sleeve 72 is fitted onto the mounting flange 2, which is also provided with a ball groove 74 and a ball component 77. A clearance groove 75 and a limiting part 76 are provided on the locking ring sleeve 72.

[0022] As a further provision of the above scheme, the protective shell base 4 includes a bottom shell 41 and a limiting sleeve 42 for mounting the plug body 3. The bottom shell 41 and the limiting sleeve 42 are threaded together, and the limiting sleeve 42 is also provided with a driving surface 44 and a limiting groove 43.

[0023] The quick connector of this utility model, such as Figure 1 As shown, its main body includes an integrated node switch sleeve 1 formed by casting and solidifying insulating resin material. During casting, a conductive rod 5 is installed inside it. The resin solidifies and covers the conductive rod 5. An installation flange 2 is provided at one end of the integrated node switch sleeve 1 and is fixedly installed with the integrated node switch sleeve 1. The installation flange 2 is equipped with a protective shell base 4 to cooperate with it. A plug body 3 is provided inside the protective shell base 4 to seal the insertion port 58 at the end of the conductive rod 5.

[0024] Furthermore, such as Figure 2 and Figure 3 As shown, in this embodiment, a quick-release ball lock 7 structure is provided between the mounting flange 2 and the protective shell base 4 to achieve quick installation and removal of the protective shell base 4 relative to the mounting flange 2. The quick-release ball lock 7 includes a mounting ring 71 threadedly connected to the mounting flange 2, a locking ring sleeve 72, and a top spring 73 that pushes the locking ring sleeve 72 to move axially. The mounting flange 2 is provided with a ball groove 74, and the inner ring of the locking ring sleeve 72 is provided with a relief groove 75 and a limiting part 76, as shown. Figure 2 The structure shown includes a protective housing base 4 comprising a bottom shell 41 and a limiting sleeve 42 threadedly connected to the bottom shell 41. The limiting sleeve 42 and the bottom shell 41 form a cavity for installing the plug body 3. When the clearance groove 75 is aligned with the ball groove 74, the ball bearings 77 disposed in the ball groove 74 can enter the clearance groove 75 to release the fitting restriction on the limiting groove 43 on the limiting sleeve 42 of the protective housing base 4 inside the mounting flange 2, thereby allowing the protective housing base 4 to be disengaged. Figure 1 As shown, the locking ring sleeve 72 is also provided with an L-shaped groove 78, and the mounting flange 2 is provided with a pin 79. During operation, the pin 79 is aligned with the L-shaped groove 78 and pushed to slide, so that the locking ring sleeve 72 rotates circumferentially when the clearance groove 75 is aligned with the ball groove 74, and is then pushed and held by the elastic force of the top spring 73, so that the limiting sleeve 42 can be kept in the insertable state. During the insertion process, the driving surface 44 on the limiting sleeve 42 will also push the ball 77 outward, so that it can be smoothly inserted.

[0025] like Figure 3As shown, the conductive rod 5 in this embodiment is provided with a detachable outer rod 53 and an inner rod 52. After the detachable outer rod 53 and the inner rod 52 are fixed by threaded locking, they form a cavity for the axial movement of the I-shaped part 62. An air-sealing spring 61 is provided to drive the I-shaped part 62 to abut against one side wall of the cavity. When the connector plug is pulled out and the conductive connection is not in use, the air-sealing spring 61 pushes the I-shaped part 62 to block the air passage 51 with the air-sealing rubber ring 63, isolating the air passage 51 to prevent the internal protective gas from leaking out. After the I-shaped part 62 is pushed open, the protective gas flows out from the air hole 64 of the I-shaped part 62 and fills the connection abutment, thereby using the protective gas in the air-filled cabinet to provide a certain degree of protection for the connection of the quick connector.

[0026] It is worth noting that although the quick connector in this embodiment can also be used in ordinary switchgear, its main improvement is applied to environmentally friendly gas-insulated switchgear. When the external plug is connected, the air passage 51 inside the conductive rod 5 allows the environmentally friendly gas to enter the air passage 51 through the radial hole 69 of the conductive rod 5 of the integrated node switch sleeve 1, which is half located inside the gas-insulated switchgear, after the front end of the conductive rod of the external plug pushes open the I-shaped part 62. The air passage 51 then fills the connection cavity of the connector. It is worth noting that the external plug needs to be sealed. When inserted, the connection mating part is provided with an airtight structure (refer to the existing waterproof sealed plug structure) to prevent leakage to the outside when the internal inert gas is filled. Through the above-mentioned settings, the environmentally friendly gas can reduce the impact of electric arc generated by connector insertion and removal in high-voltage environments, thereby improving the safety of high-voltage quick emergency connectors during use.

[0027] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of this utility model and its equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A quick connector for a 15kV integrated node switchgear, comprising an integrated node switch bushing (1), a mounting flange (2), a plug body (3), and a protective housing base (4), characterized in that: The integrated node switch sleeve (1) is provided with a conductive rod (5), and the conductive rod (5) is provided with an air passage (51) and an elastic air seal assembly (6). A quick-release ball lock (7) is provided between the protective shell base (4) and the mounting flange (2).

2. The quick connector for a 15kV integrated node switchgear according to claim 1, characterized in that: The conductive rod (5) includes an inner rod (52) and a detachable outer rod (53). The inner rod (52) and the detachable outer rod (53) are threaded together and form an elastic movable cavity (54). The elastic air seal assembly (6) is disposed in the elastic movable cavity (54).

3. A quick connector for a 15kV integrated node switchgear according to claim 1, characterized in that: The elastic air seal assembly (6) includes an air seal spring (61), a I-shaped part (62), and an air seal rubber ring (63). The I-shaped part (62) is disposed opposite to the inclined surface (55) provided in the air passage (51).

4. A quick connector for a 15kV integrated node switchgear according to claim 3, characterized in that: The I-shaped part (62) is provided with an air hole (64), and the air seal spring (61) is used to push the I-shaped part (62) to abut against the inclined surface (55) with the air seal rubber ring (63) to block the air passage (51).

5. A quick connector for a 15kV integrated node switchgear according to claim 1, characterized in that: One end of the conductive rod (5) is provided with a socket (58) connecting to the air passage (51), and the other side of the air passage (51) penetrating the conductive rod (5) is provided with an installation port (68) and a radial hole (69). The elastic air seal assembly (6) is located on one side of the socket (58).

6. A quick connector for a 15kV integrated node switchgear according to claim 1, characterized in that: The quick-release ball lock (7) includes a mounting ring (71), a locking ring sleeve (72), and a top spring (73) that pushes the locking ring sleeve (72) to move axially. The locking ring sleeve (72) is fitted on the mounting flange (2). The mounting flange (2) is also provided with a ball groove (74) and a ball component (77). A clearance groove (75) and a limiting part (76) are provided on the locking ring sleeve (72).

7. A quick connector for a 15kV integrated node switchgear according to claim 1, characterized in that: The protective shell base (4) includes a bottom shell (41) and a limiting sleeve (42) for mounting the plug body (3). The bottom shell (41) and the limiting sleeve (42) are threaded together. The limiting sleeve (42) is also provided with a driving surface (44) and a limiting groove (43).

Images