CN203503821U

CN203503821U - Hard tube bus grounding device

Info

Publication number: CN203503821U
Application number: CN201320363950.1U
Authority: CN
Inventors: 李金戈; 季斌; 杨光; 朱海波
Original assignee: State Grid Corp of China SGCC; Hubei Electric Power Transmission and Distribution Engineering Co Ltd
Current assignee: State Grid Corp of China SGCC; Hubei Electric Power Transmission and Distribution Engineering Co Ltd
Priority date: 2013-06-24
Filing date: 2013-06-24
Publication date: 2014-03-26
Anticipated expiration: 2023-06-24

Abstract

The utility model provides a hard tube bus grounding device, comprising a hook, a lock hook, a spring clamp and a grounding copper wire. The hook comprises a hooking part and an interconnecting part; the lock hook is rotatably installed at the free terminal of the hooking part of the hook; the spring clamp is arranged to the hooking part of the hook and optionally clamps or loosens one end of the lock hook; the grounding copper wire is connected to the tail end of the interconnecting part of the hook. The hard tube bus grounding device mainly employs an automatic self-locking hook to connect with the grounding copper wire to realize grounding; the automatic self-locking hook is used for being hung on a hard tube bus and is connected to a tower body through the grounding copper wire so as to lead leakage current from leads to the ground. The hard tube bus grounding device avoids operators from climbing insulators in hanging process on a tension rod tower, and is simple to operate and convenient to hang and dismount.

Description

Hard pipe bus earthing device

[technical field]

The utility model relates to power transmission and transformation field, particularly a kind of hard pipe bus earthing device.

[background technology]

In HVDC (High Voltage Direct Current) transmission line, earth connection is indispensable Work tool in power industry service work, and earth connection can divide the electric current of revealing to lead shaft tower and finally dredge to ground, avoids getting an electric shock.On wire jumper due to extra high voltage line strain rod tower, installed hard tube additional female, traditional earth connection cannot directly be hung on wire jumper.Therefore,, when staff hangs ultra-high voltage tension tower earth connection, need to get over insulator from shaft tower and just can complete.Ultra high voltage strain insulator is conventionally more than 10.6 meters, therefore, and the operation that hangs earth connection on the ultra high voltage strain rod tower more complicated of getting up.

For these reasons, develop and aly can use the earthing device on hard pipe bus to be necessary very much.

[utility model content]

In view of this, for overcoming the above-mentioned deficiency of prior art, the utility model provides a kind of hard pipe bus earthing device simple to operate.

The utility model provides a kind of hard pipe bus earthing device, comprise hook, latch hook, Spring Card and ground connection copper cash, described hook comprises hook portion and connecting portion, described latch hook is installed in rotation on the free end of hook portion of described hook, described Spring Card is arranged on the one end of also optionally blocking or unclamping described latch hook in the hook portion of described hook, and described ground connection copper cash is connected to the linkage section end of described hook.

In an embodiment, described hook is connected with pivot by the free-ended pivoted hole of described hook hook portion with described latch hook therein, and described pivot is arranged on the stage casing of described latch hook.

Therein in an embodiment, described Spring Card is arranged in the hook portion of described hook away from described pivoted hole place.

In an embodiment, described Spring Card comprises that protruding out the draw ring of described hook hook portion is connected with described draw ring and the bayonet lock in described hook hook portion therein, and described bayonet lock optionally blocks or unclamp one end of described latch hook.

In an embodiment, the hook portion of described hook and the internal diameter of described latch hook are 300mm therein.

The hard pipe bus earthing device of the present utility model mainly hook by can automatic self-locking connects ground connection copper cash and is grounded, automatic self-locking hook is used for hanging over hard pipe bus, thereby be connected to tower body by ground connection copper cash, reaches the object from wire guiding the earth by leakage current.When above-mentioned hard pipe bus earthing device hangs on strain rod tower, avoided staff to go out insulator, it is simple to operate, hang convenient disassembly.

[accompanying drawing explanation]

Fig. 1 is the structural representation of the open mode of preferred embodiment hard pipe bus earthing device of the present utility model.

Fig. 2 is the structural representation of the closed condition of the hard pipe bus earthing device in Fig. 1.

[embodiment]

For understanding better the utility model, below with reference to accompanying drawing and instantiation, the utility model is described in detail.

Refer to Fig. 1 and Fig. 2, preferred embodiment hard pipe bus earthing device of the present utility model comprises hook 10, latch hook 20, Spring Card 30 and ground connection copper cash 40.Hook 10 comprises hook portion and connecting portion (not indicating), and latch hook 20 is arranged on the free end of the hook portion of linking up with 10, and Spring Card 30 is arranged in the hook portion of hook 10, and ground connection copper cash 40 is connected to the connecting portion of hook 10.

Particularly, hook 10 is connected by linking up with the free-ended pivoted hole 12 use pivots of 10 hook portion with latch hook 20, and pivot is arranged on the stage casing of latch hook 20.30 of Spring Cards are arranged in hook 10 hook portion away from pivoted hole 12 places, and ground connection copper cash 40 is connected to the end of the connecting portion of hook 10.Spring Card 30 comprises that the draw ring 32 of the hook portion that protrudes out hook 10 is connected with draw ring 32 and the bayonet lock 34 in the hook portion of hook 10.

Incorporated by reference to consulting Fig. 1 and Fig. 2, when hard pipe bus earthing device hooks hard pipe bus, hard pipe bus falls into the hook portion of hook 10.Along with entering of hard pipe bus, a section of latch hook 20 is triggered and is pressed in hook portion and is blocked its end by the bayonet lock 34 of Spring Card 30.Now, another section of latch hook 20 is driven the direction motion towards the opening of the hook portion of sealing hook 10, thereby hard pipe bus is limited in linking up with in 10 arc spaces that form with latch hook 20.In this process, hard pipe bus earthing device becomes the closed condition shown in Fig. 2 from the open mode of Fig. 1.When hard pipe bus earthing device discharges hard pipe bus, outwards lift the draw ring 32 of Spring Card 30, bayonet lock 34 moves thereupon and discharges latch hook 20, thus hard pipe bus earthing device can flick into the open mode of Fig. 1.

In the above-described embodiments, because the diameter of hard pipe bus is 280mm, so the hook portion of hook 10 and the internal diameter of latch hook 20 can be made as 300mm left and right.

The hard pipe bus earthing device of the present utility model mainly hook by can automatic self-locking connects ground connection copper cash and is grounded, automatic self-locking hook is used for hanging over hard pipe bus, thereby be connected to tower body by ground connection copper cash, reaches the object from wire guiding the earth by leakage current.

Hard pipe bus earthing device of the present utility model is compared with traditional earth connection, possesses following characteristics:

1) hang, convenient disassembly.When hard pipe bus earthing device hangs on strain rod tower, avoided staff to go out insulator.

2) safe and reliable.When hook hooks hard tube mother, automatic self-locking, because of the screens of bayonet lock, makes it can not throw off.

3) save time, improve work efficiency.Hang traditional earth connection individual turnover (the 10.6 meters of insulator string length of take are example) approximately 15 minutes strain insulator used times, and adopt the female earth connection individual of hard tube to hang the used time, only need 2 minutes.By shortening the operating time, reduce operation easier and can improve the efficiency of the work such as interruption maintenance, emergency repair, save the danger that this flow process of turnover insulator has also reduced operation simultaneously.

The above exemplifying embodiment has only been expressed part execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.

Claims

1. a hard pipe bus earthing device, it is characterized in that: described hard pipe bus earthing device comprises hook, latch hook, Spring Card and ground connection copper cash, described hook comprises hook portion and connecting portion, described latch hook is installed in rotation on the free end of hook portion of described hook, described Spring Card is arranged on the one end of also optionally blocking or unclamping described latch hook in the hook portion of described hook, and described ground connection copper cash is connected to the linkage section end of described hook.

2. hard pipe bus earthing device according to claim 1, is characterized in that: described hook is connected with pivot by the free-ended pivoted hole of described hook hook portion with described latch hook, and described pivot is arranged on the stage casing of described latch hook.

3. hard pipe bus earthing device according to claim 2, is characterized in that: described Spring Card is arranged in the hook portion of described hook away from described pivoted hole place.

4. according to the hard pipe bus earthing device described in any one in claims 1 to 3, it is characterized in that: described Spring Card comprises that protruding out the draw ring of described hook hook portion is connected with described draw ring and the bayonet lock in described hook hook portion, and described bayonet lock optionally blocks or unclamp one end of described latch hook.

5. hard pipe bus earthing device according to claim 4, is characterized in that: the hook portion of described hook and the internal diameter of described latch hook are 300mm.