Outdoor isolating switch

Abstract

The utility model discloses an outdoor disconnecting switch, which comprises a mounting seat, first insulating columns are fixedly mounted at two ends of the surface of the top of the mounting seat, a second insulating column is rotatably connected between the two first insulating columns on the surface of the top of the mounting seat, and a first contact device is mounted at the top of each first insulating column. A second contact device is mounted at the top of the second insulating column, and the second contact device is in movable contact connection with the first contact device; in conclusion, the outdoor isolating switch is reasonable in structural design, not only can reduce the generation of electric arcs in the switching-on and switching-off processes of the outdoor isolating switch and prolong the service life, but also is simple and convenient to operate, can improve the conduction performance of the isolating switch, and is relatively good in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of disconnectors, in particular to an outdoor disconnector. Background Technique

[0002] The disconnector generally refers to a high-voltage disconnector, that is, a disconnector with a rated voltage of 1 kV and above, usually simply referred to as a disconnector. As the high-voltage electrical appliance with the largest usage amount on the power line, the outdoor disconnector is mainly used to isolate the power supply of the distribution line during maintenance to improve the operation safety. It has an obvious isolation break and is mostly installed on overhead lines and substations. There are mainly two types of outdoor disconnectors: one is phase-separated operation. During operation, an insulating rod is used to pull open the isolating knife to play the role of isolating the power supply. The other is three-phase linkage operation. During operation, an insulating rod is used to pull the manual mechanism, and through the transmission components, the disconnector is tripped to play the role of isolating the power supply.

[0003] However, for the structural method designed for the current outdoor disconnector, when closing, the insertion contact (moving contact) and the clamp contact (static contact) rotate towards each other respectively, so that the insertion contact (moving contact) is inserted into the clamp contact (static contact). And adopting this structural method causes a large amount of arcing phenomenon during the closing and opening processes of the insertion contact (moving contact) and the clamp contact (static contact) in the disconnector, thereby affecting the service life of the moving contact and the static contact. Summary of the Invention

[0004] The purpose of the utility model is to provide an outdoor disconnector to solve the problem in the above-mentioned background technique that for the structural method designed for the current outdoor disconnector, when closing, the insertion contact (moving contact) and the clamp contact (static contact) rotate towards each other respectively, so that the insertion contact (moving contact) is inserted into the clamp contact (static contact). And adopting this structural method causes a large amount of arcing phenomenon during the closing and opening processes of the insertion contact (moving contact) and the clamp contact (static contact) in the disconnector, thereby affecting the service life of the moving contact and the static contact.

[0005] To achieve the above purpose, the utility model provides the following technical solution: An outdoor disconnector includes a mounting base. At both ends of the top surface of the mounting base, first insulating columns are fixedly installed. A second insulating column is rotatably connected between the two first insulating columns on the top surface of the mounting base. A first contact device is installed on the top of the first insulating column. A second contact device is installed on the top of the second insulating column, and the second contact device is movably in contact connection with the first contact device.

[0006] Preferably, the first contact device includes a first fixed seat and a static contact. The first fixed seat is fixedly installed on the top surface of the first insulating column. On one side of the surface of the first fixed seat, fixing plates are symmetrically installed, and an installation cavity is formed between the two fixing plates. The static contact is fixedly connected in the installation cavity by bolts.

[0007] Preferably, the static contact includes a static spring contact piece, a guide rod, and a compression spring. A U-shaped portion is provided at the top of the static spring contact piece. A guide rod is installed inside the U-shaped portion, and a compression spring is sleeved on the surface of the guide rod.

[0008] Preferably, the second contact device includes a second fixed seat and a moving contact. The second fixed seat is fixedly installed on the top surface of the second insulating column. The middle part of the surface of the moving contact is connected to the second fixed seat.

[0009] Preferably, the moving contact is designed in a cylindrical structure.

[0010] Preferably, the second fixed seat includes an upper connecting seat and a lower connecting seat. The upper connecting seat and the lower connecting seat are connected by bolts. A fixed cavity is formed between the upper connecting seat and the lower connecting seat, and the moving contact is assembled in the fixed cavity.

[0011] Preferably, a connecting plate is fixedly connected to the lower part of the outer wall of the second insulating column, and a connecting frame is installed at one end of the surface of the connecting plate.

[0012] Preferably, the surface of the moving contact is in contact with the surface of the U-shaped portion.

[0013] Beneficial effects

[0014] Compared with the existing technology, the beneficial effects of the present utility model are as follows:

[0015] To sum up, the structure of the present utility model is reasonably designed. It can not only reduce the generation of electric arcs during the closing and opening processes of outdoor disconnectors, increase the service life, but also is simple and convenient to operate, and can improve the conduction performance of the disconnector, with good practicability. Description of the drawings

[0016] Figure 1 is the overall structural schematic diagram of the present utility model;

[0017] Figure 2 is the structural schematic diagram of the first contact device of the present utility model;

[0018] Figure 3 is the structural schematic diagram of the second contact device of the present utility model.

[0019] 1. Mounting seat; 2. First insulating column; 3. Second insulating column; 4. First contact device;

[0020] 5. The second contact device; 6. The connecting plate; 7. The connecting frame; 41. The first fixing seat; 42. The fixing plate;

[0021] 43. The installation cavity; 44. The static contact; 51. The second fixing device; 52. The moving contact; 53. The fixing cavity;

[0022] 441. The static spring contact piece; 442. The guiding rod; 443. The pressing spring; 444. The U-shaped part; 511. The lower connecting seat; 512. The upper connecting seat; 513. The bolt. Specific embodiments

[0023] The technical solutions of the present utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. 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 scope of protection of the present utility model.

[0024] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", "vertical", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention 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 should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0025] As Figures 1-3 It is a schematic structural diagram of an outdoor disconnect switch according to a preferred embodiment of the present utility model. In this embodiment, an outdoor disconnect switch includes an installation seat 1. At both ends of the top surface of the installation seat 1, first insulating columns 2 are fixedly installed. Between the two first insulating columns 2 on the top surface of the installation seat 1, a second insulating column 3 is rotatably connected. At the top of the first insulating column 2, a first contact device 4 is installed, and at the top of the second insulating column 3, a second contact device 5 is installed. And through the rotation of the second insulating column 3, the second contact device 5 is in movable contact connection with the first contact device 4, so as to realize the functions of closing and opening the disconnect switch.

[0026] In this embodiment, the first contact device 4 includes a first fixed seat 41 and a static contact 44. The first fixed seat 41 is fixedly installed on the top surface of the first insulating column 2. On one side of the surface of the first fixed seat 41, fixing plates 42 are symmetrically installed, and an installation cavity 43 is formed between the two fixing plates 42. The installation cavity 43 provides an installation space for the static contact 44 and plays a role in guiding and positioning. The static contact 44 is fixedly connected in the installation cavity 43 through a bolt 513, which is convenient for replacing the static contact 44 in the later stage.

[0027] In this embodiment, the static contact 44 includes a static spring contact piece 441, a guide rod 442, and a compression spring 443. A U-shaped portion 444 is provided on the top of the static spring contact piece 441. The guide rod 442 is installed inside the U-shaped portion 444, and the compression spring 443 is sleeved on the surface of the guide rod 442. With this structural design, when the surface of the U-shaped portion 444 on the top of the static spring contact piece 441 repeatedly contacts the surface of the moving contact 52 during use, wear will occur, resulting in poor contact between the moving contact 52 and the U-shaped portion 444. In order to ensure the contact between the moving contact 52 and the U-shaped portion 444, the compression spring 443 provides tension to the U-shaped portion 444 to ensure the contact between the moving contact 52 and the U-shaped portion 444.

[0028] In this embodiment, the second contact device 5 includes a second fixed seat 51 and a moving contact 52. The second fixed seat 51 is fixedly installed on the top surface of the second insulating column 3, and the middle of the surface of the moving contact 52 is connected to the second fixed seat 51.

[0029] In this embodiment, the moving contact 52 is designed in a cylindrical structure, which is convenient for better contact with the U-shaped portion 444. At the same time, during the closing and opening processes of the outdoor disconnecting switch, the occurrence of arcing is reduced.

[0030] In this embodiment, the second fixed seat 51 includes an upper connection seat 512 and a lower connection seat 511. The upper connection seat 512 and the lower connection seat 511 are connected by a bolt 513, and a fixed cavity 53 is formed between the upper connection seat 512 and the lower connection seat 511. The moving contact 52 is assembled in the fixed cavity 53. With this structural design, through the connection between the upper connection seat 512 and the lower connection seat 511, the moving contact 52 is fixed, and it is convenient for later maintenance work.

[0031] In this embodiment, a connecting plate 6 is fixedly connected to the lower part of the outer wall of the second insulating column 3. A connecting frame 7 is installed at one end of the surface of the connecting plate 6. With this structural arrangement, multiple outdoor disconnecting switches can be connected, and the function of synchronous operation can be achieved.

[0032] The above content further elaborates on the present utility model in combination with specific embodiments. It cannot be determined that the specific implementation of the present utility model is only limited to these descriptions. For those of ordinary skill in the technical field to which the present utility model pertains, without departing from the concept of the present utility model, several simple deductions or substitutions can still be made, and all should be regarded as falling within the protection scope determined by the claims submitted for the present utility model.

Claims

1. An outdoor disconnect switch, comprising a mounting base (1), characterized in that: First insulating columns (2) are fixedly mounted at both ends of the top surface of the mounting seat (1); a second insulating column (3) is rotatably connected to the top surface of the mounting seat (1) between the two first insulating columns (2); a first contact device (4) is mounted on the top of the first insulating column (2); a second contact device (5) is mounted on the top of the second insulating column (3); and the second contact device (5) is movably connected to the first contact device (4).

2. An outdoor isolating switch according to claim 1, characterized in that: The first contact device (4) comprises a first fixing seat (41) and a stationary contact (44); the first fixing seat (41) is fixedly mounted on the top surface of the first insulating column (2); a fixing plate (42) is symmetrically mounted on one side of the surface of the first fixing seat (41); an installation cavity (43) is formed between the two fixing plates (42); and a stationary contact (44) is fixedly connected to the installation cavity (43) by a bolt (513).

3. An outdoor isolating switch according to claim 2, characterized in that: The static contact (44) comprises a static spring contact piece (441), a guide rod (442) and a compression spring (443); a U-shaped portion (444) is arranged on the top of the static spring contact piece (441); a guide rod (442) is installed on the inner side of the U-shaped portion (444); and a compression spring (443) is sleeved on the surface of the guide rod (442).

4. The outdoor isolating switch according to claim 1, characterized in that: The second contact device (5) comprises a second fixed seat (51) and a moving contact (52); the second fixed seat (51) is fixedly mounted on the top surface of the second insulating column (3); the middle part of the surface of the moving contact (52) is connected to the second fixed seat (51).

5. An outdoor isolating switch according to claim 4, characterized in that: The moving contact (52) is designed to be cylindrical in structure.

6. An outdoor isolating switch according to claim 4, characterized in that: The second fixing seat (51) comprises an upper connecting seat (512) and a lower connecting seat (511); the upper connecting seat (512) and the lower connecting seat (511) are connected via bolts (513); a fixing cavity (53) is provided between the upper connecting seat (512) and the lower connecting seat (511); a moving contact (52) is installed in the fixing cavity (53).

7. An outdoor isolating switch according to claim 4, characterized in that: A connecting plate (6) is fixedly connected to the lower portion of the outer wall of the second insulating column (3), and a connecting frame (7) is mounted on one end of the surface of the connecting plate (6).

8. An outdoor isolating switch according to claim 6, characterized in that: The surface of the moving contact (52) is in contact with the surface of the U-shaped portion (444).

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