CN203746734U - Mechanical locking protection device used for disconnecting switch - Google Patents

Mechanical locking protection device used for disconnecting switch Download PDF

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Publication number
CN203746734U
CN203746734U CN201420125916.5U CN201420125916U CN203746734U CN 203746734 U CN203746734 U CN 203746734U CN 201420125916 U CN201420125916 U CN 201420125916U CN 203746734 U CN203746734 U CN 203746734U
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CN
China
Prior art keywords
dead bolt
sealing slideway
isolating switch
locking
disconnecting switch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201420125916.5U
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Chinese (zh)
Inventor
孙志英
刘永刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI GOODRUN ELECTRIC POWER TECHNOLOGY Co Ltd
Original Assignee
SHANGHAI GOODRUN ELECTRIC POWER TECHNOLOGY Co Ltd
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Publication date
Application filed by SHANGHAI GOODRUN ELECTRIC POWER TECHNOLOGY Co Ltd filed Critical SHANGHAI GOODRUN ELECTRIC POWER TECHNOLOGY Co Ltd
Priority to CN201420125916.5U priority Critical patent/CN203746734U/en
Application granted granted Critical
Publication of CN203746734U publication Critical patent/CN203746734U/en
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Abstract

The utility model discloses a mechanical locking protection device used for a disconnecting switch. The mechanical locking protection device used for the disconnecting switch includes a locking head, a locking tongue, a pull ring, a closed slide channel, a spring and a pull rod, wherein the closed slide channel is fixed on the disconnecting link of the disconnecting switch; a rotary center hole and a spherical surface groove through hole are formed in the pull ring; the pull ring is rotatably arranged on the disconnecting link of the disconnecting switch through the rotary center hole; one end of the pull rod is hinged with the locking tongue and is limited in the closed slide channel; the other end of the pull rod is of a spherical structure and passes through an end wall of the closed slide channel and thereafter is hinged with the pull ring through the spherical surface groove through hole; the spring sleeves the pull rod; one end of the spring abuts against the locking tongue; the other end of the spring abuts against the end wall of the closed slide channel; and the locking head includes a locking tongue limiting hole used for accommodating the locking tongue. According to the mechanical locking protection device used for the disconnecting switch of the utility model, the elastic component moves in the closed slide channel in a reciprocating manner, so that the unlocking/locking of the disconnecting switch can be realized, and therefore, the defects of a traditional disconnecting switch mechanical locking mechanism can be avoided.

Description

A kind of isolating switch mechanical caging protective device
Technical field
The utility model relates to electric equipment safeguard protection field, relates in particular to a kind of mechanical caging protective device for isolating switch.
Background technology
Isolating switch use amount as isolated from power or separated time purposes is large, and performance reliability requires high, is one of product of use amount maximum in China's power distribution network.Isolating switch divides, closes circuit operation by suit/separated realization of dynamic and static contact, in order to change circuit connection or to make circuit or equipment and isolated from power.When isolating switch is during in closing position, moving contact should have enough penetraction depths, to guarantee that contact area meets the requirements.The in the situation that of the normal work of isolating switch, require moving contact can lock closing position, and can be because switching overvoltage, lightning current impact, the uncertain disturbing factor impact such as wind pendulum, sleet, sparrow and misoperation causes power outage.When needs isolating switch open-circuit line, while indicating to operating worker significantly to disconnect, isolating switch locking mechanism should be easy to release, and making has enough spacing out between dynamic/static contact, to effectively isolate live part.
The mechanical lock mechanism of conventional high-tension isolating switch is general adopts spacing hook type spring to form snap close by interlock rotating clamp, and this mechanism structure is exquisite, but when reality is used flexible member be subject to shake or environmental interference, assembling bad, and be easy to come off; Meanwhile, because the limitation of hook type spring structure---number of active coils is few, its energy storage mode is that the tension force by spring itself forms, and is easy to produce elastic fatigue and loses efficacy.At home, it is turning-fastening type structure that high voltage isolator locking mechanism is used maximum a kind of modes, and it forms snap close by extension spring traction striker sheet, and assembly precision is poor, and owing to being exposed device, is very easily subject to the environmental factors such as filth disturb and lost efficacy.
The misoperation accident of high voltage isolator is having a strong impact on the reliability of supply and distribution network safety, therefore, designs a kind of safe and reliable mechanical caging protective device significant.
Summary of the invention
The purpose of this utility model is to provide a kind of mechanical caging protective device, utilizes elastomeric element reciprocating motion in sealing slideway to realize the unblank/locking of isolating switch, has avoided the defect of traditional isolating switch mechanical lock mechanism.
The technical scheme that realizes above-mentioned purpose is:
An isolating switch mechanical caging protective device, installs in separating on switch tool, and described mechanical caging protective device comprises tapered end, dead bolt, draw ring, sealing slideway, spring and pull bar, wherein:
Described in described sealing slideway is fixed on, separate on switch tool, one end of this sealing slideway is for holding the outlet of described dead bolt turnover, and the other end is end wall;
Described draw ring is provided with single-revolution centre bore and a rounded channels through hole, and described draw ring is rotatably installed on described isolating switch disconnecting link by described rotating central hole;
Described pull bar one end and described dead bolt are hinged, are limited in described sealing slideway, and other end structure spherical in shape, through hinged by described rounded channels through hole and described draw ring after the end wall of described sealing slideway;
Described spring housing is on described pull bar, and one end pushes against described dead bolt, and the other end pushes against the end wall of described sealing slideway; Described tapered end comprises for holding the dead bolt spacing hole of described dead bolt.
Above-mentioned isolating switch is with in mechanical caging protective device, in the circumferential edge of described rotating central hole, be also provided with the first boss and the second boss, on described isolating switch disconnecting link, be also provided with a limit shaft, this limit shaft is positioned at described the second boss top, props up described the second boss during for locking; Described the first boss is positioned at described sealing slideway below, props up described sealing slideway after slipping in described sealing slideway completely for described dead bolt.
Above-mentioned isolating switch is with in mechanical caging protective device, and described sealing slideway is fastened and formed by an external chute and an internal chute.
Above-mentioned isolating switch is used in mechanical caging protective device, the curved structure of tongue of described dead bolt.
The beneficial effects of the utility model are: the utility model, by the reciprocating motion in the slideway of relative closure of Elastic Sliding parts, is realized unblank/locking; Because the coefficient of reliability of spring is high, be subject to environmental interference factor few, can effectively avoid the drawback of mechanical lock mechanism for traditional isolating switch, reach the object that improves supply and distribution network safety.Meanwhile, by being set, position-limit mechanism can effectively increase the service life.And the utility model is simple in structure, Financial cost is only 50%~70% of traditional structure product, has high promotional value.
Accompanying drawing explanation
Fig. 1 is the structural representation of mechanical caging protective device of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Refer to Fig. 1, mechanical caging protective device of the present utility model comprises draw ring 1, external chute 2, dead bolt 3, internal chute 5, spring 6, pull bar 7 and tapered end (not shown), wherein:
After external chute 2 and internal chute 5 fasten, form a sealing slideway, and be fixed on isolating switch disconnecting link 4 by fixed axis; Dead bolt 3 is limited in sealing slideway with spring 6, and one end of sealing slideway is for holding the outlet of dead bolt 3 turnover, and the other end is end wall, has and hold the through hole that pull bar 7 passes on this end wall;
Draw ring 1 is provided with single-revolution centre bore 13 and a rounded channels through hole 14, utilizes single-revolution axle through rotating central hole 13, draw ring 1 to be rotatably installed on isolating switch disconnecting link 4.
One end of pull bar 7 is hinged through spring 6 and dead bolt 3, and other end structure spherical in shape, through meshing with rounded channels through hole 14 after the through hole on sealing slideway end wall, is convenient to rotation in rounded channels, makes draw ring 1 and pull bar 7 hinged;
Spring 6 one end pushing and pressing dead bolts 3, the end wall of other end pushing and pressing sealing slideway; In the present embodiment, spring 6 adopts ripe cylinder-shaped compression spring, and material is elastic stainless steel;
The curved structure of tongue of dead bolt 3, to reduce the resistance that closes a floodgate, is convenient to dead bolt free-extension and closes a floodgate smoothly; Tapered end can be made various shapes according to actual needs, can make one with the moving contact of isolating switch, intend or be assembled into integrative-structure with moving contact, but tapered end endoporus must be dead bolt spacing hole, and dead bolt 3 is anchored in tapered end, plays the effect of locking.
The first boss 11 and the second boss 12 that in the circumferential edge of rotating central hole 13, are also provided with spacing use, be also provided with a limit shaft 41 on isolating switch disconnecting link 4, limit shaft 41 is positioned at the second boss 12 tops, props up the second boss 12 during for locking; The first boss 11 is positioned at sealing slideway below, after dead bolt 3 slips in sealing slideway when unblanking, props up sealing slideway, prevents the excessive damage causing lockout protection device of impulsive force on the excessive or draw ring 1 of draw ring 1 rotational angle.
While unblanking, rotate draw ring 1, the unlocking force acting on draw ring 1 passes to pull bar 7, and pull bar 7 traction dead bolt 3 extrusion springs 6 make dead bolt 3 slip into sealing slideway, exit tapered end; During locking, promote draw ring 1, on draw ring 1, the second boss 12 rotations stop bit are in limit shaft 41, and spring 6 is stretched, and in sealing slideway, discharges dead bolt 3, dead bolt 3 arcwall faces clash into contact at first, be subject to contact reaction force, dead bolt 3 extrusion springs 6 move in slideway, when switch to be isolated arrives closing position, dead bolt 3 is subject to the extruding force of spring to stretch out slideway and enters contact apertures, thereby realizes self-locking; The displacement of dead bolt 3 relative closure slideways is determined by the first boss 11, the second boss 12, limit shaft 41 and rotation arc length.

Claims (4)

1. an isolating switch mechanical caging protective device, installs in separating on switch tool, it is characterized in that, described mechanical caging protective device comprises tapered end, dead bolt, draw ring, sealing slideway, spring and pull bar, wherein:
Described in described sealing slideway is fixed on, separate on switch tool, one end of this sealing slideway is for holding the outlet of described dead bolt turnover, and the other end is end wall;
Described draw ring is provided with single-revolution centre bore and a rounded channels through hole, and described draw ring is rotatably installed on described isolating switch disconnecting link by described rotating central hole;
Described pull bar one end and described dead bolt are hinged, are limited in described sealing slideway, and other end structure spherical in shape, through hinged by described rounded channels through hole and described draw ring after the end wall of described sealing slideway;
Described spring housing is on described pull bar, and one end pushes against described dead bolt, and the other end pushes against the end wall of described sealing slideway;
Described tapered end comprises for holding the dead bolt spacing hole of described dead bolt.
2. isolating switch according to claim 1 mechanical caging protective device, it is characterized in that, in the circumferential edge of described rotating central hole, be also provided with the first boss and the second boss, on described isolating switch disconnecting link, be also provided with a limit shaft, this limit shaft is positioned at described the second boss top, props up described the second boss during for locking; Described the first boss is positioned at described sealing slideway below, props up described sealing slideway after slipping in described sealing slideway completely for described dead bolt.
3. isolating switch according to claim 1 mechanical caging protective device, is characterized in that, described sealing slideway is fastened and formed by an external chute and an internal chute.
4. isolating switch according to claim 1 mechanical caging protective device, is characterized in that, the curved structure of tongue of described dead bolt.
CN201420125916.5U 2014-03-19 2014-03-19 Mechanical locking protection device used for disconnecting switch Active CN203746734U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420125916.5U CN203746734U (en) 2014-03-19 2014-03-19 Mechanical locking protection device used for disconnecting switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420125916.5U CN203746734U (en) 2014-03-19 2014-03-19 Mechanical locking protection device used for disconnecting switch

Publications (1)

Publication Number Publication Date
CN203746734U true CN203746734U (en) 2014-07-30

Family

ID=51346501

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420125916.5U Active CN203746734U (en) 2014-03-19 2014-03-19 Mechanical locking protection device used for disconnecting switch

Country Status (1)

Country Link
CN (1) CN203746734U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105261515A (en) * 2015-11-18 2016-01-20 江苏省如高高压电器有限公司 Improved isolating switch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105261515A (en) * 2015-11-18 2016-01-20 江苏省如高高压电器有限公司 Improved isolating switch
CN105261515B (en) * 2015-11-18 2017-05-10 江苏省如高高压电器有限公司 Improved isolating switch

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