A device for non-stop maintenance of isolating switches

Abstract

The invention discloses a device for non-power-off maintenance of isolating switches, which comprises: a vertical connecting rod limiting device, a switching operation device and a locking device; the vertical connecting rod limiting device comprises a frame clamp for being sleeved on a frame, a vertical connecting rod clamp for being sleeved on a vertical connecting rod, an axle seat is provided on the hanging ears on both sides of the frame clamp and in the middle of the vertical connecting rod clamp, and a rotating shaft is provided in each rotating shaft seat; a first connecting arm and a second connecting arm are provided, one end of the two connecting arms is connected to the rotating shaft, and the other end of the two connecting arms is respectively connected to the rotating shaft in the other axle seat; and the two connecting arms can be retracted and locked; the switching operation and prohibition of the isolating switch without a mechanism can be realized, thereby realizing the switching operation and the function of overhauling the isolating switch without power outage when the mechanism fails or the transmission mechanism is stuck; at the same time, the device has a simple structure, convenient installation and operation, greatly improves the work efficiency, can be reused, and is economical and practical.

Description

Technical field:

[0001] The invention relates to a device for non-stop maintenance of isolating switches, belonging to the field of maintenance operations of power systems. Background technology:

[0002] Isolators are important switching devices in electrical systems. High-voltage isolators cooperate with high-voltage circuit breakers to switch the operation mode of the power system and ensure the safety of equipment maintenance. At present, if the isolator mechanism fails or the transmission structure is stuck and the isolator cannot be operated during power outage maintenance, the power outage range needs to be increased; power outage is required for isolator mechanism maintenance, protection replacement, etc., especially the busbar side isolators need to be shut down with the busbar.

[0003] Based on the above situation, there is an urgent need for a device that can be used to operate a power outage when an isolating switch fails, and can also be used to complete maintenance or technical modifications of the isolating switch without powering off. This greatly reduces the scope of the power outage or even eliminates the need for power outages, and improves the convenience and economy of isolating switch maintenance. Summary of the invention:

[0004] In order to overcome the defects of the prior art, the purpose of the present invention is to provide a device for non-power-off maintenance of isolating switches, aiming to reduce the power outage scope of isolating switch maintenance or even to avoid power outage, thereby improving convenience and economy.

[0005] The present invention solves the technical problem by adopting the following technical solution:

[0006] A device for non-power-off maintenance of isolating switches, comprising:

[0007] Vertical connecting rod limit device, opening and closing operating device and locking device;

[0008] The vertical connecting rod limiting device comprises a frame clamp for sleeved on the frame, and a vertical connecting rod clamp for sleeved on the vertical connecting rod. A first rotating shaft seat is respectively provided on the hanging ears on both sides of the frame clamp, and a second rotating shaft seat is provided in the middle of the vertical connecting rod clamp, and a rotating shaft is provided in each rotating shaft seat; and a first connecting arm and a second connecting arm are provided, one end of the two connecting arms is connected to the rotating shaft in the second rotating shaft seat, and the other ends of the two connecting arms are respectively connected to the rotating shaft in the first rotating shaft seat; and the two connecting arms can be retracted and locked;

[0009] The switch opening and closing operating device comprises an operating clamp and an operating rod for being sleeved on the vertical connecting rod, an operating sleeve is fixedly arranged on the side of the operating clamp, and the axial direction of the operating sleeve is parallel to the radial direction of the operating clamp;

[0010] The locking device includes a locking sleeve shaft which is vertically rotatably connected to the frame clamp hanging ear, the bottom end of the locking sleeve shaft is fixedly connected to a locking sleeve, the axial direction of the locking sleeve is parallel to the radial direction of the frame clamp, and a locking bolt which radially penetrates the sleeve is provided on the locking sleeve, and correspondingly, a locking hole matching the locking bolt is provided at the front end of the operating rod.

[0011] Preferably, further, the frame clamp is composed of two halves, each of which is provided with ears on both sides, the two halves are connected by connecting bolts / nuts on the ears, and the inner arc surface of each halves is provided with anti-slip teeth; the first rotating shaft seat is arranged on the two ears of one of the halves.

[0012] Preferably, further, the vertical connecting rod clamp is composed of two halves, each of which is provided with ears on both sides, the two halves of the clamp are connected by connecting bolts / nuts on the ears, and the inner arc surface of each halves of the clamp is provided with a needle roller, when the vertical connecting rod clamp is sleeved on the vertical connecting rod, the axial direction of the needle roller is parallel to the axis of the vertical connecting rod; the second rotating shaft seat is arranged in the middle of the outer annular surface of one of the halves of the clamp.

[0013] Preferably, further, the first connecting arm and the second connecting arm are both composed of two sections of steel pipes, one section is inserted into the other section, and radial locking bolts are provided on the steel pipe with a larger diameter.

[0014] Preferably, further, the operating clamp is composed of two halves, each of which is provided with ears on both sides, the two halves are connected by connecting bolts / nuts on the ears, and the inner arc surface of each halves is provided with anti-slip teeth; the operating sleeve is arranged in the middle of the outer annular surface of one of the halves, and a radial locking bolt is provided on the tube wall of the operating sleeve for locking the operating rod.

[0015] Preferably, further, both ends of the locking bolt radially extend out of the locking sleeve, and padlock holes at both ends of the locking bolt are used to assemble padlocks.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] The device can realize the opening and closing operation and the prohibition of the isolating switch without a mechanism, thereby realizing the opening and closing operation when the mechanism fails or the transmission mechanism is stuck and the function of repairing the isolating switch without power outage; at the same time, the device has a simple structure, convenient installation and operation, and greatly improves the work efficiency. It can be reused and is economical and practical. Description of the drawings:

[0018] Figure 1 is an application state diagram of the present invention; Figure 2 It is a structural schematic diagram of the opening and closing operating device; Figure 3The vertical connecting rod limiting device is a structural schematic diagram; Figure 4 It is a schematic diagram of the structure of the locking device.

[0019] Numbers in the figure: 1 vertical connecting rod limit device, 2 opening and closing operating device, 21 operating clamp, 22 operating sleeve, 3 locking device, 31 locking sleeve shaft, 32 locking sleeve, 33 locking bolt, 4 frame, 41 frame clamp, 42 first rotating shaft seat, 5 vertical connecting rod, 51 vertical connecting rod clamp, 511 roller needle, 52 second rotating shaft seat, 6 operating rod, 61 locking hole, 7 first connecting arm, 8 second connecting arm.

[0020] The present invention will be further described below through specific implementation modes in conjunction with the accompanying drawings. Specific implementation method:

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] A device for non-stop maintenance of an isolating switch according to this embodiment includes:

[0023] Vertical connecting rod limit device 1, opening and closing operation device 2 and locking device 3;

[0024] The vertical connecting rod limiting device 1 includes a frame clamp 41 for sleeved on the frame 4, and a vertical connecting rod clamp 51 for sleeved on the vertical connecting rod 5. The first rotating shaft seat 42 is respectively provided on the hanging ears on both sides of the frame clamp 41, and a second rotating shaft seat 52 is provided in the middle of the vertical connecting rod clamp 51. A rotating shaft is provided in each rotating shaft seat; a first connecting arm 7 and a second connecting arm 8 are provided, one end of the two connecting arms is connected to the rotating shaft in the second rotating shaft seat 52, and the other ends of the two connecting arms are respectively connected to the rotating shaft in the first rotating shaft seat 42; and the two connecting arms can be retracted and locked;

[0025] The opening and closing operating device 2 comprises an operating hoop 21 and an operating rod 6 for being sleeved on the vertical connecting rod 5. An operating sleeve 22 is fixedly arranged on the side of the operating hoop 21. The axial direction of the operating sleeve 22 is parallel to the radial direction of the operating hoop 21.

[0026] The locking device 3 includes a locking sleeve shaft 31 which is vertically rotatably connected to the hanging ear of the frame clamp 41, and a locking sleeve 32 is fixedly connected to the bottom end of the locking sleeve shaft 31. The axial direction of the locking sleeve 32 is parallel to the radial direction of the frame clamp 41, and a locking bolt 33 which radially penetrates the sleeve is provided on the locking sleeve 32. Correspondingly, a locking hole 61 matching the locking bolt 33 is provided at the front end of the operating rod 6.

[0027] In the specific setting, the frame clamp 41 is composed of two halves, each of which is provided with ears on both sides. The two halves of the clamp are connected by connecting bolts / nuts on the ears, and the inner arc surface of each halves of the clamp is provided with anti-slip teeth; the first rotating shaft seat 42 is arranged on the two ears of one of the halves of the clamp.

[0028] Among them, the vertical connecting rod clamp 51 is composed of two halves, each of which is provided with ears on both sides. The two halves of the clamp are connected by connecting bolts / nuts on the ears, and the inner arc surface of each halves of the clamp is provided with a needle roller. When the vertical connecting rod clamp 51 is sleeved on the vertical connecting rod 5, the axial direction of the needle roller is parallel to the axis of the vertical connecting rod 5; the second rotating shaft seat 52 is arranged in the middle of the outer annular surface of one of the halves of the clamp.

[0029] The first connecting arm 7 and the second connecting arm 8 are both composed of two sections of steel pipes, one section is inserted into the other section, and radial locking bolts are provided on the steel pipe with a larger diameter.

[0030] The operating clamp 21 is composed of two halves, each of which is provided with ears on both sides. The two halves are connected by connecting bolts / nuts on the ears, and the inner arc surface of each halves is provided with anti-slip teeth; the operating sleeve 22 is arranged in the middle of the outer annular surface of one of the halves, and a radial locking bolt is provided on the tube wall of the operating sleeve 22 for locking the operating rod 6.

[0031] Both ends of the locking bolt 33 radially extend out of the locking sleeve 32 , and padlock holes at both ends of the locking bolt 33 are used to assemble padlocks.

[0032] In the specific implementation, the working principle and working method are:

[0033] (I) When the present invention performs non-stop maintenance of the high-voltage disconnector, including maintenance work such as maintenance of the disconnector mechanism and replacement of protection, which does not involve the upper conductive parts, the frame clamp 41 is first fixed to the frame 4 on the side of the disconnector close to the operating mechanism, and the opening and closing operating device 2 is fixed to the vertical connecting rod 5 through the operating clamp 21. The direction angle is adjusted so that the operating rod 6 can pass through the locking sleeve 32, and the locking sleeve 32 is rotated. The operating rod 6 is respectively passed through the operating sleeve 22 and the locking sleeve 32, so that the locking bolt 33 passes through the locking sleeve 32 and the operating rod 6 at the same time, and the anti-mistake padlock is passed through the locking bolt 33 and locked, and the operating rod 6 is locked in the locking sleeve 32. At this time, the position of the disconnector has been fixed by the device of the present invention, and the vertical connecting rod 5 can be disconnected from the disconnector operating mechanism to perform the corresponding maintenance work.

[0034] (ii) When the present invention performs operations such as switching off or power outage of an isolating switch with an operating mechanism failure or a transmission mechanism jam, the frame clamp 41 is first fixed to the frame 4 on the isolating switch side close to the operating mechanism, the lengths of the first connecting arm 7 and the second connecting arm 8 are adjusted so that the vertical connecting rod 5 is located at the center of the vertical connecting rod clamp 51, and the radial locking bolts of the two connecting arms are tightened, the two halves of the vertical connecting rod clamp 51 are assembled together, and the vertical connecting rod 5 is confined inside; the opening and closing operating device 2 is fixed to the vertical connecting rod 5 by the operating clamp 21, the vertical connecting rod 5 is disconnected from the isolating switch operating mechanism, and the opening and closing operations of the isolating switch are realized by rotating the operating rod 6. After the operation, the position of the isolating switch is fixed by the locking device 3.

[0035] The device has a simple structure, convenient installation and operation, is reusable, economical and practical, easy to carry and manage, ingeniously designed, flexible to use, reasonably designed, and compact in structure. It can repair some faults that originally required power outages without shutting down the isolating switch, and can also complete the opening and closing operations when operating an isolating switch that cannot be opened or closed due to a fault to avoid expanding the scope of the power outage. It has a good market prospect.

[0036] It should be noted that some parts not described in detail in the present invention belong to the well-known technology in the art, or can be directly purchased from the market, and those skilled in the art can obtain them without creative work. The specific connection method is extremely widely used in this art or in daily life, and will not be described in detail here.

[0037] In addition, those skilled in the art may combine and combine the different embodiments or examples and the features of the different embodiments or examples described in this specification without contradiction. Although the embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and cannot be understood as limiting the present invention. Those skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A device for non-stop maintenance of isolating switches, characterized in that include: A vertical connecting rod limiting device (1), a switch opening and closing operating device (2) and a locking device (3); The vertical connecting rod limiting device (1) comprises a frame hoop (41) for sleeved on the frame (4) and a vertical connecting rod hoop (51) for sleeved on the vertical connecting rod (5); first rotating shaft seats (42) are respectively arranged on the hanging ears on both sides of the frame hoop (41); a second rotating shaft seat (52) is arranged in the middle of the vertical connecting rod hoop (51); and a rotating shaft is arranged in each rotating shaft seat; a first connecting arm (7) and a second connecting arm (8) are arranged; one end of the two connecting arms is connected to the rotating shaft in the second rotating shaft seat (52); and the other ends of the two connecting arms are respectively connected to the rotating shaft in the first rotating shaft seat (42); and the two connecting arms can be extended and locked; The switch opening and closing operating device (2) comprises an operating hoop (21) and an operating rod (6) for being sleeved on a vertical connecting rod (5); an operating sleeve (22) is fixedly arranged on the side of the operating hoop (21); and the axial direction of the operating sleeve (22) is parallel to the radial direction of the operating hoop (21); The locking device (3) comprises a locking sleeve shaft (31) vertically rotatably connected to a hanging ear of a frame clamp (41); a locking sleeve (32) is fixedly connected to the bottom end of the locking sleeve shaft (31); an axial direction of the locking sleeve (32) is parallel to a radial direction of the frame clamp (41); and a locking bolt (33) radially penetrating the sleeve is provided on the locking sleeve (32); correspondingly, a locking hole (61) matching the locking bolt (33) is provided at the front end of the operating rod (6).

2. The device for non-stop maintenance of isolating switches according to claim 1, characterized in that: The frame clamp (41) is composed of two halves, each of which is provided with hanging ears on both sides, the two halves are connected by connecting bolts / nuts on the hanging ears, and the inner arc surface of each halves is provided with anti-slip teeth; the first rotating shaft seat (42) is arranged on the two hanging ears of one of the halves.

3. The device for non-stop maintenance of isolating switches according to claim 1, characterized in that: The vertical connecting rod clamp (51) is composed of two halves, each of which is provided with hanging ears on both sides. The two halves are connected by connecting bolts / nuts on the hanging ears, and the inner arc surface of each halves is provided with a roller needle (511). When the vertical connecting rod clamp (51) is sleeved on the vertical connecting rod (5), the axial direction of the roller needle is parallel to the axial direction of the vertical connecting rod (5); the second rotating shaft seat (52) is arranged in the middle of the outer annular surface of one of the halves.

4. The device for non-stop maintenance of isolating switches according to claim 1, characterized in that: The first connecting arm (7) and the second connecting arm (8) are both composed of two sections of steel pipes, one section is inserted into the other section, and radial locking bolts are provided on the steel pipe with a larger diameter.

5. The device for non-stop maintenance of isolating switches according to claim 1, characterized in that: The operating clamp (21) is composed of two halves, each of which is provided with hanging ears on both sides. The two halves are connected by connecting bolts / nuts on the hanging ears, and the inner arc surface of each halves is provided with anti-slip teeth; the operating sleeve (22) is arranged in the middle of the outer annular surface of one of the halves, and a radial locking bolt is provided on the tube wall of the operating sleeve (22) for locking the operating rod (6).

6. The device for non-stop maintenance of isolating switches according to claim 1, characterized in that: Both ends of the locking bolt (33) radially extend out of the locking sleeve (32), and padlock holes at both ends of the locking bolt (33) are used to assemble padlocks.

Images