Isolation switch rapid operation auxiliary device and matching assembly and method thereof

Abstract

The invention discloses a quick operation auxiliary device for an isolating switch, and the device comprises a connector which is detachably connected with an insulating operating rod; one end of the sliding rod is detachably connected with the connector; the limiting block is fixedly connected with the other end of the sliding rod; the outer surface of the sliding rod is sleeved with the sliding block, and the sliding block is in sliding connection with the sliding rod; the sliding block slides on the sliding rod and respectively collides with the connector and the limiting block, so that the connector drives the insulating operating rod to open and close the disconnecting switch. The invention further relates to a matching assembly of the isolating switch rapid operation auxiliary device and a switching-on and switching-off method of the isolating switch rapid operation auxiliary device. According to the rapid operation auxiliary device for the disconnecting switch, the sliding block slides on the sliding rod to collide with the connector and the limiting block, the force generated by collision of the sliding block, the connector and the limiting block is used for assisting the insulating operation rod to complete disconnecting switch opening and closing operation, the arc discharge phenomenon is avoided, and the rapid operation auxiliary device belongs to the technical field of power transmission and distribution work.

Description

Technical Field

[0001] The present invention relates to the technical field of power transmission and distribution operations, and in particular to a disconnector quick operation auxiliary device and its supporting components and methods. Background Art

[0002] As a common insulating tool in the power system, the insulating operating rod is often used to connect or disconnect switching equipment such as high-voltage disconnectors and drop-out fuses. However, when operating aging and rusty switching equipment, the insulating operating rod cannot quickly pull the knife switch away from the contacts due to the rust of the knife switch, that is, "arcing" may occur if the opening and closing switches are not in place, affecting personal safety and equipment safety. Summary of the invention

[0003] In view of the above shortcomings, the present invention provides a disconnector quick operation auxiliary device and its supporting components and methods, which can assist the insulating operating rod to quickly open and close the switch and avoid arcing.

[0004] The specific technical solutions are as follows:

[0005] A quick operation auxiliary device for an isolating switch, comprising:

[0006] A connector, which is used for detachable connection with the insulating operating rod;

[0007] A slide rod, one end of which is detachably connected to the connector;

[0008] A limit block, which is fixedly connected to the other end of the slide bar;

[0009] The slider is sleeved on the outer surface of the slide rod, and the slider is slidably connected to the slide rod; the slider slides on the slide rod and collides with the connector and the limit block respectively, so that the connector drives the insulating operating rod to open and close the disconnector.

[0010] Preferably, a connecting hole is provided at one end of the connecting head, the connecting hole is provided with a first internal thread, and a first external thread is provided at one end of the sliding rod, and the connecting head and the sliding rod are connected via the first internal thread and the first external thread.

[0011] Preferably, the other end of the connector is provided with a second external thread, and the other end of the connector is detachably connected to the insulating operating rod via the second external thread.

[0012] Preferably, the other end of the slide rod and the limit block are an integrally formed structure.

[0013] Preferably, the connector, the slide bar, the slide block and the limit block are all made of stainless steel.

[0014] Preferably, a first buffer ring is provided at the connection between the sliding rod and the connecting head, and a second buffer ring is provided at the connection between the sliding rod and the limiting block.

[0015] Preferably, a buffer spring is provided between the first buffer ring and the slider.

[0016] A matching component of a disconnector quick operation auxiliary device comprises an insulating operating rod and a disconnector quick operation auxiliary device; the insulating operating rod comprises a working head, an insulating rod portion and a connecting end, the working head, the insulating rod portion and the connecting end are connected in sequence, and the connecting end is threadedly connected to the connecting head.

[0017] Preferably, in a matching assembly of a disconnector quick-operation auxiliary device, the insulating rod portion is a telescopic structure.

[0018] A method for opening and closing a disconnector quick operation auxiliary device, using a disconnector quick operation auxiliary device, the method comprising the following steps;

[0019] Opening stage:

[0020] S1: Check whether the circuit breaker is in the open position, and check whether the insulating operating rod is damaged or cracked;

[0021] S2: According to the position of the high-voltage disconnector, select the length and angle of the insulating operating rod;

[0022] S3: Connect the insulating operating rod to the connector;

[0023] S4: Align the insulating operating rod with the disconnecting position of the disconnecting switch, pull the slider and rotate the slide bar at the same time, and use the slider to collide with the connector and the limit block during the sliding process of the slide bar, so as to drive the disconnecting switch to be completely disconnected;

[0024] S5: After opening, check whether each phase of the isolating switch is in the disconnected position;

[0025] Closing phase:

[0026] S6: Check whether the circuit breaker is in the open position, and check whether the insulating operating rod is damaged or cracked;

[0027] S7: According to the position of the high-voltage disconnector, select the length and angle of the insulating operating rod;

[0028] S8: Connect the insulating operating rod to the connector;

[0029] S9: Align the insulating operating rod with the closing position of the disconnector and push the limit block until the disconnector is closed;

[0030] S10: After closing the circuit breaker, check whether the output of the isolating switch is in contact and whether the contact is good.

[0031] Compared with the prior art, the beneficial effect of the present invention is that the disconnector quick operation auxiliary device of the present invention can utilize the slider to collide with the connector and the limit block when the slide rod slides, and the force generated by the collision between the slider, the connector and the limit block assists the insulating operating rod to complete the disconnector opening and closing operations, thereby avoiding arcing. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0033] Figure 1 This is an exploded view of a quick-operation auxiliary device for an isolating switch.

[0034] Figure 2 The figure is a schematic diagram of a quick operation auxiliary device for an isolating switch.

[0035] Figure 3 The invention relates to an opening and closing method of a disconnecting switch quick operation auxiliary device.

[0036] Among them, 1 is a limit block, 2 is a sliding rod, 3 is an insulating operating rod, 4 is a slider, and 5 is a connector. DETAILED DESCRIPTION

[0037] The technical scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all of the embodiments. Based on the embodiment 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.

[0038] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0039] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If the terms "first", "second", "third" are described, they are only used for the purpose of description and distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0041] Embodiment 1;

[0042] like Figure 1 and Figure 2 As shown, this embodiment provides a disconnector quick operation auxiliary device, comprising:

[0043] A connector 5, which is used for detachably connecting with the insulating operating rod 3;

[0044] A slide bar 2, one end of which is detachably connected to a connector 5;

[0045] A limit block 1, which is fixedly connected to the other end of the slide bar 2;

[0046] The slider 4 is sleeved on the outer surface of the slide rod 2, and the slider 4 is slidably connected to the slide rod 2; the slider 4 slides on the slide rod 2 and collides with the connector 5 and the limit block 1 respectively, so that the connector 5 drives the insulating operating rod 3 to open and close the disconnector.

[0047] The connecting head 5 is a cylindrical structure. The outer diameter of one end of the connecting head 5 connected to the insulating operating rod 3 is smaller than the outer diameter of the insulating operating rod 3. The insulating operating rod 3 is provided with an assembly hole, and the assembly hole is provided with a second internal thread. The outer diameter of the other end of the connecting head 5 connected to the insulating operating rod 3 corresponds to the assembly hole, and the second internal thread and the second external thread cooperate to achieve connection.

[0048] The slide bar 2 is a cylindrical rod, the limit block 1 is cylindrical, and the slide block 4 is a cylindrical structure.

[0049] One end of the connector 5 is provided with a connecting hole, the connecting hole is provided with a first internal thread, one end of the slide bar 2 is provided with a first external thread, and the connector 5 and the slide bar 2 are connected via the first internal thread and the first external thread.

[0050] The other end of the connector 5 is provided with a second external thread, and the other end of the connector 5 is detachably connected to the insulating operating rod 3 via the second external thread.

[0051] The other end of the slide bar 2 and the limit block 1 are integrally formed.

[0052] The connector 5, the slide bar 2, the slide block 4 and the limit block 1 are all made of stainless steel.

[0053] A first buffer ring is provided at the connection between the slide bar 2 and the connector 5, and a second buffer ring is provided at the connection between the slide bar 2 and the limit block 1. Both the first buffer ring and the second buffer ring are rubber rings.

[0054] A buffer spring is provided between the first buffer ring and the slider 4. By providing the buffer spring, the wear caused by the collision between the two can be reduced.

[0055] Example 2

[0056] like Figure 1 and Figure 2 As shown, a supporting component of a disconnector quick operation auxiliary device includes an insulating operating rod 3 and a disconnector quick operation auxiliary device; the insulating operating rod 3 includes a working head, an insulating rod portion and a connecting end, the working head, the insulating rod portion and the connecting end are connected in sequence, and the connecting end is threadedly connected to the connecting head 5.

[0057] A matching component of a disconnector quick operation auxiliary device, wherein the insulating rod is a telescopic structure. The insulating rod can be formed by sleeve-connecting a plurality of sleeve rods to form a telescopic structure (for details, reference can be made to existing telescopic joints).

[0058] Embodiment 3;

[0059] like Figure 3 As shown, the present embodiment provides a disconnector quick operation auxiliary device opening and closing method, using a disconnector quick operation auxiliary device, the method comprises the following steps:

[0060] Opening stage:

[0061] S1: Check whether the circuit breaker is in the open position, and check whether the insulating operating rod 3 is damaged or cracked;

[0062] S2: According to the position of the high-voltage disconnector, select the length and angle of the insulating operating rod 3;

[0063] S3: Connect the insulating operating rod 3 to the connector 5;

[0064] Before step S4, the operator wears a safety helmet, insulating gloves and insulating boots.

[0065] S4: Align the insulating operating rod 3 with the opening position of the disconnector, pull the slider 4 and rotate the slide bar 2 at the same time, and use the slider 4 to collide with the connector 5 and the limit block 1 respectively during the sliding process of the slide bar 2, so as to drive the disconnector to completely open; in step S4, when aligning with the opening position of the high-voltage disconnector, it is necessary to quickly and firmly pull or rotate the slide bar 2, and the slide bar 2 drives the insulating operating rod 3 until the disconnector is completely opened; during the opening process, it should be noted that the speed should be fast so as to quickly extinguish the arc;

[0066] S5: After opening, check whether each phase of the disconnector is in the disconnected position and whether the blade has been pulled to the end;

[0067] Closing phase:

[0068] S6: Check whether the circuit breaker is in the open position, and check whether the insulating operating rod 3 is free of damage or cracks;

[0069] S7: Select the length and angle of the insulating operating rod 3 according to the position of the high-voltage disconnector;

[0070] S8: Connect the insulating operating rod 3 to the connector 5;

[0071] S9: Align the insulating operating rod 3 with the closing position of the disconnector, and push the limit block 1 until the disconnector is closed;

[0072] S10: After closing the circuit breaker, check whether the output of the isolating switch is in contact and whether the contact is good.

[0073] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A quick operation auxiliary device for an isolating switch, characterized in that: include: A connector, which is used for detachable connection with the insulating operating rod; A slide rod, one end of which is detachably connected to the connector; A limit block, which is fixedly connected to the other end of the slide bar; The slider is sleeved on the outer surface of the slide rod, and the slider is slidably connected to the slide rod; the slider slides on the slide rod and collides with the connector and the limit block respectively, so that the connector drives the insulating operating rod to open and close the disconnector.

2. A disconnector quick operation auxiliary device according to claim 1, characterized in that: One end of the connector is provided with a connecting hole, the connecting hole is provided with a first internal thread, one end of the slide rod is provided with a first external thread, and the connector and the slide rod are connected through the first internal thread and the first external thread.

3. The quick operation auxiliary device for disconnecting switch according to claim 1, characterized in that: The other end of the connector is provided with a second external thread, and the other end of the connector is detachably connected to the insulating operating rod via the second external thread.

4. The quick operation auxiliary device for disconnecting switch according to claim 1, characterized in that: The other end of the slide bar and the limit block are integrally formed.

5. The quick operation auxiliary device for disconnecting switch according to claim 1, characterized in that: The connector, slide bar, slider and limit block are all made of stainless steel.

6. The quick operation auxiliary device for disconnecting switch according to claim 1, characterized in that: A first buffer ring is provided at the connection between the slide rod and the connector, and a second buffer ring is provided at the connection between the slide rod and the limit block.

7. A disconnector quick operation auxiliary device according to claim 6, characterized in that: A buffer spring is arranged between the first buffer ring and the sliding block.

8. A supporting component of a quick operation auxiliary device for an isolating switch, characterized in that: It comprises an insulating operating rod and a quick operation auxiliary device for an isolating switch as described in any one of claims 1 to 7; the insulating operating rod comprises a working head, an insulating rod portion and a connecting end, the working head, the insulating rod portion and the connecting end are connected in sequence, and the connecting end is threadedly connected to the connecting head.

9. The supporting component of the disconnector quick operation auxiliary device according to claim 8, characterized in that: The insulating rod is a telescopic structure.

10. A method for opening and closing a disconnector quick operation auxiliary device, characterized in that: Using a disconnector quick operation auxiliary device as claimed in any one of claims 1 to 7, the method comprises the following steps; Opening stage: S1: Check whether the circuit breaker is in the open position, and check whether the insulating operating rod is damaged or cracked; S2: According to the position of the high-voltage disconnector, select the length and angle of the insulating operating rod; S3: Connect the insulating operating rod to the connector; S4: Align the insulating operating rod with the disconnecting position of the disconnecting switch, pull the slider and rotate the slide bar at the same time, and use the slider to collide with the connector and the limit block during the sliding process of the slide bar, so as to drive the disconnecting switch to be completely disconnected; S5: After opening, check whether each phase of the isolating switch is in the disconnected position; Closing phase: S6: Check whether the circuit breaker is in the open position, and check whether the insulating operating rod is damaged or cracked; S7: According to the position of the high-voltage disconnector, select the length and angle of the insulating operating rod; S8: Connect the insulating operating rod to the connector; S9: Align the insulating operating rod with the closing position of the disconnector and push the limit block until the disconnector is closed; S10: After closing the circuit breaker, check whether the output of the isolating switch is in contact and whether the contact is good.

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