CN101864870A

CN101864870A - Electromagnetic lock for manual operation mechanism of disconnecting switch

Info

Publication number: CN101864870A
Application number: CN 201010173657
Authority: CN
Inventors: 胡纯岳; 马山华; 王俊; 殷安岗; 杨晓冬
Original assignee: Jiangsu Rugao High Voltage Electric Apparatus Co Ltd
Current assignee: Jiangsu Rugao High Voltage Electric Apparatus Co Ltd
Priority date: 2010-05-17
Filing date: 2010-05-17
Publication date: 2010-10-20
Anticipated expiration: 2030-05-17
Also published as: CN101864870B

Abstract

The invention relates to an electromagnetic lock for a manual operation mechanism of a disconnecting switch. The electromagnetic lock comprises a sealing box composed of a base plate and a stainless steel cover and is characterized in that a lock plunger mechanism, a contactor and a manual unlocking mechanism are respectively arranged in the sealing box, wherein the lock plunger mechanism is locked or unlocked by the contactor in order to operate the manual operation mechanism. The contactor has the advantages of long service life, reliable performance and greatly reduces the failure rate; and when the lock plunger mechanism is unlocked without being powered in emergencies, non-power installation and maintenance, the lock plunger mechanism can be unlocked by the manual unlocking mechanism.

Description

A kind of electromagnetic lock of manual operation mechanism of disconnecting switch

Technical field

The present invention relates to a kind of electromagnetic lock of isolating switch operating mechanism, the safe and reliable and electromagnetic lock isolating switch operating mechanism of manual unlocking under emergent, no electric installation situation of particularly a kind of performance.

Background technology

Manual operation mechanism of disconnecting switch is used for manually carrying out the unlatching and the closure of isolating switch disconnecting link, is maloperation for preventing the people, and the locking electromagnetic lock is set on manual operation mechanism usually.General manual operation mechanism electromagnetic lock comprises the latch mechanism of carrying out operating mechanism locking, the calutron of control lock bolt mechanism, it exists shortcoming to be: calutron is generally self-control, the fault rate height, easily burn, and this device sealing is poor the inner body easy-to-rust, cause locking bolt to move, influence use, and the release of must switching on can't be moved when installing or overhauling at emergent, nothing electricity.

Summary of the invention

The technical problem to be solved in the present invention provides the safe and reliable and electromagnetic lock isolating switch operating mechanism of manual unlocking under emergent, no electric installation situation of a kind of performance.

For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of electromagnetic lock of manual operation mechanism of disconnecting switch, comprise the sealing box body that base plate and stainless steel cage are formed, its innovative point is: be respectively equipped with latch mechanism in the described box body, contactor and hand-operating unlocking mechanism: latch mechanism comprises holder, alignment pin, back-moving spring and operating grip, the holder that the center has pin-and-hole is fixed on the base plate, alignment pin places in the pin-and-hole, the back-moving spring that alignment pin is ejected the box body front side wall also is housed in the pin-and-hole, the end of alignment pin be located at holder operating grip outer and that stretch out the box body rear wall and be connected, alignment pin ejects the box body front side wall and stretches into the isolating switch operating mechanism and realize the locking of isolating switch operating mechanism under the effect of back-moving spring, outwards spur operating grip and make and realize the release of isolating switch operating mechanism in the alignment pin withdrawal pin-and-hole; Contactor has the projection and the mechanical linkage switch that stretch out the contactor housing, mechanical linkage switch and protruding mechanical linkage, projection is arranged in a side of latch mechanism operating grip, it stretches out at non-energising or mechanical linkage switch and stretches out under the state and pin operating grip, withdrawal unlocking operation handle under energising or mechanical linkage switch retracted mode; Hand-operating unlocking mechanism comprises lock, lever and unlock key, lock is installed in the box body rear wall outside, its lock core is positioned at the rear wall inboard, lever is located between the mechanical linkage switch of lock core and contactor, lever was failure to actuate when lock core was positioned at locked position of coupler, and lock core promotes the mechanical linkage switch that lever props up contactor when being positioned at unlocked position, promotes the withdrawal of mechanical linkage switch.

Further, the position that alignment pin stretches out on the described box body front side wall is provided with sealing ring.

Further, the described operating grip part of stretching out the box body rear wall is equipped with the sealing ring that is pressed on the box body rear wall.

Further, described locking is connected with rain-proof cover.

The invention has the advantages that: when normal running, by switching on to contactor, make the operating grip of projection withdrawal release latch mechanism of contactor, manual outside pulling operating grip makes connected alignment pin withdrawal, realize the release of isolating switch operating mechanism, thereby carry out the use of operating mechanism, after mechanism's actuating puts in place, disconnect the contactor power supply, alignment pin automatically resets, and keeps the locking of alignment pin.Adopt electric life to reach 100,000 times to millions of times and be generally millions of mechanical life and carry out the keying of latch mechanism to ten million time contactor, dependable performance greatly reduces fault rate.

Can't switch on when carrying out the release of latch mechanism at emergent, no electric installation and maintenance etc., can stir lock core, make it promote the mechanical linkage switch that lever props up contactor, the release of realization latch mechanism by special-purpose unlock key.

The alignment pin extended position and the operating grip extended position that have hole on box body all are provided with corresponding sealing ring, guarantee excellent sealing performance, improve the security reliability of this structure electromagnetic lock.

Description of drawings

Accompanying drawing is the electromagnetic lock structure schematic diagram of manual operation mechanism of disconnecting switch of the present invention.

The specific embodiment

As shown in drawings, comprise base plate 1, stainless steel cage 2, holder 3, alignment pin 4, back-moving spring 5, operating grip 6, sealing ring 7, sealing ring 8, contactor 9, projection 10, mechanical linkage switch 11, lock 12, lever 13, unlock key 14.

Above-mentioned base plate 1 and stainless steel cage 2 are formed the box body of sealing, are respectively equipped with latch mechanism, contactor and hand-operating unlocking mechanism in box body, and concrete structure is:

Latch mechanism comprises holder 3, alignment pin 4, back-moving spring 5, operating grip 6, holder 3 is fixed on the base plate 1, the end face that its center has a pin-and-hole is close to stainless steel cage 2 front side walls of box body, alignment pin 4 places in the pin-and-hole, it can slide front and back in pin-and-hole, also be connected with back-moving spring 5 in the pin-and-hole, this back-moving spring 5 is installed in the end of alignment pin 4, the front side wall that under its elastic force effect alignment pin 4 is pushed up to stainless steel cage 2.Stainless steel cage 2 front side walls at this place have and the corresponding hole of holder 3 pin-and-holes, make alignment pin 4 can stretch out outside the stainless steel cage 2, and are with sealing ring 7 on this hole.Operating grip 6 is located at holder 3 rears, its top is connected with the end of alignment pin 4, terminal operator delthyrium from stainless steel cage 2 rear walls backward stretches out, and sealing ring 8 being installed at the shank of the operating grip 6 that stretches out rear wall, sealing circle 8 props up the operator delthyrium on the rear wall under the effect of back-moving spring 5.

Alignment pin 4 ejects stainless steel cage 2 front side walls under the effect of back-moving spring 5, stretch into and realize the locking of isolating switch operating mechanism in the isolating switch operating mechanism, and after outwards spurring operating grip 6, operating grip 6 drives alignment pins 4 and retreats, and makes to realize the release of isolating switch operating mechanism in the alignment pin 4 withdrawal pin-and-holes.

Contactor 9 is fixed on the base plate 1 of operating grip 6 one sides, be used for locking and unlocking operation handle 6, it has the projection 10 and the mechanical linkage switch 11 that stretch out the contactor housing, projection 10 retainings are at the rear of operating grip 6, when switching on, do not stretch out, pin operating grip 6, avoid it to pull out backward, under "on" position, pass through contactor 9 internal mechanisms withdrawal unlocking operation handle 6.Mechanical linkage switch 11 is located at the below of projection 10, and with projection 10 interlocks, it is stretching out under the state, stretches out simultaneously with projection 10, drives projection 10 withdrawal together during withdrawal.

Hand-operating unlocking mechanism comprises lock 12, lever 13, unlock key 14, lock 12 is installed in the rear wall outside of stainless steel cage 2, its lock core stretches in the cover, is positioned at the inboard of rear wall, and lever 13 is installed on the base plate 1, between the mechanical linkage switch 11 of lock core and contactor, when lock core was in locked position of coupler, it did not contact with lever 13, and lock core is when being in the unlocked position, it promotes the mechanical linkage switch 11 that lever 13 props up contactor 9, promotes 11 withdrawals of mechanical linkage switch.Also be connected with rain-proof cover 15 on the lock 12, avoid entering in the keyhole rainwater or foreign material and cause lock to open.

When this electromagnetic lock is specifically worked: when normal running, by giving contactor 9 energisings, make the projection 10 of contactor 9 withdraw, the operating grip 6 of release latch mechanism, manually outwards spur operating grip 6, make and realize connected alignment pin 4 withdrawals the release of isolating switch operating mechanism, thereby carry out the use of operating mechanism; After mechanism's actuating puts in place, disconnect contactor 9 power supplys, alignment pin 4 automatically resets, and keeps the locking of alignment pin 4.

Can't switch on when carrying out the release of latch mechanism at emergent, no electric installation and maintenance etc., can stir the lock core of lock 12 by unlock key 14, make it promote the mechanical linkage switch 11 that lever 13 props up contactor 9, realize the release of latch mechanism, and then carry out the action of latch mechanism, realize the release of isolating switch operating mechanism.

Claims

1. the electromagnetic lock of a manual operation mechanism of disconnecting switch comprises the sealing box body that base plate and stainless steel cage are formed, and it is characterized in that: be respectively equipped with latch mechanism, contactor and hand-operating unlocking mechanism in the described box body:

Latch mechanism comprises holder, alignment pin, back-moving spring and operating grip, the holder that the center has pin-and-hole is fixed on the base plate, alignment pin places in the pin-and-hole, the back-moving spring that alignment pin is ejected the box body front side wall also is housed in the pin-and-hole, the end of alignment pin be located at holder operating grip outer and that stretch out the box body rear wall and be connected, alignment pin ejects the box body front side wall and stretches into the isolating switch operating mechanism and realize the locking of isolating switch operating mechanism under the effect of back-moving spring, outwards spur operating grip and make and realize the release of isolating switch operating mechanism in the alignment pin withdrawal pin-and-hole;

Contactor has the projection and the mechanical linkage switch that stretch out the contactor housing, mechanical linkage switch and protruding mechanical linkage, projection is arranged in a side of latch mechanism operating grip, it stretches out at non-energising or mechanical linkage switch and stretches out under the state and pin operating grip, withdrawal unlocking operation handle under energising or mechanical linkage switch retracted mode;

Hand-operating unlocking mechanism comprises lock, lever and unlock key, lock is installed in the box body rear wall outside, its lock core is positioned at the rear wall inboard, lever is located between the mechanical linkage switch of lock core and contactor, lever was failure to actuate when lock core was positioned at locked position of coupler, and lock core promotes the mechanical linkage switch that lever props up contactor when being positioned at unlocked position, promotes the withdrawal of mechanical linkage switch.

2. the electromagnetic lock of manual operation mechanism of disconnecting switch according to claim 1, it is characterized in that: the position that alignment pin stretches out on the described box body front side wall is provided with sealing ring.

3. the electromagnetic lock of manual operation mechanism of disconnecting switch according to claim 1, it is characterized in that: the part that described operating grip stretches out the box body rear wall is equipped with the sealing ring that is pressed on the box body rear wall.

4. the electromagnetic lock of manual operation mechanism of disconnecting switch according to claim 1, it is characterized in that: described locking is connected with rain-proof cover.