CN218866964U

CN218866964U - Isolating switch

Info

Publication number: CN218866964U
Application number: CN202223408719.8U
Authority: CN
Inventors: 江美纯; 叶国车; 蔡明明; 陈吉文; 吴怡芳
Original assignee: XIAMEN LRONGXK ELECTRICAL CO Ltd
Current assignee: XIAMEN LRONGXK ELECTRICAL CO Ltd
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-04-14
Anticipated expiration: 2032-12-20

Abstract

The utility model provides an isolating switch, including casing and operating device and the contact system of setting in the casing, the casing is including the base, well lid and the upper cover that the lid closed in proper order, the base encloses with well lid and closes and form cavity down, upper cover and well lid enclose and close and form the cavity, contact system sets up in the cavity of resorption, operating device sets up in the cavity of resorption and the drive is connected contact system, operating device's drive pivot upwards passes the upper cover and connects the handle, be provided with elasticity joint structure between contact system's smooth roof beam and the base or between contact system's smooth roof beam and the well lid, and switch to the joint that divides the floodgate position through elasticity joint structure and realize spacingly when contact system. The sliding beam can be prevented from automatically sliding to influence the switch performance when the isolating switch is in the opening state, and the stability of the contact system in the opening position is improved.

Description

Isolating switch

Technical Field

The utility model relates to a switchgear field, concretely relates to isolator.

Background

The isolating switch has certain on-off capacity, and is equipment for isolating a power failure part from a live part and forming an obvious off-point so as to isolate fault equipment or perform power failure maintenance. The existing disconnecting switch is generally divided into a rotary clapper type structure and a sliding plug type structure, and the disconnecting switch of the sliding plug type structure is shown as a kind of disconnecting switch disclosed in cn201721923578. X. When fault equipment needs to be isolated or power failure maintenance is carried out, the contact system is disconnected to a brake separating position; at present, a contact system is driven by an operating mechanism and is kept at a certain position (such as a brake separating position), but when the cooperation of the operating mechanism and the contact system fails to control the contact system well, the danger is very high, and for example, when equipment is overhauled after an isolating switch is separated, a sliding beam of the contact system loosens or even slides, the maintenance operation is very dangerous. Therefore, further stability of the disconnector in the open position needs to be ensured.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a solve above-mentioned problem, provide a isolator, can further improve isolator stability when the separating brake.

In order to achieve the above purpose, the utility model provides a technical scheme as follows:

the utility model provides an isolating switch, includes casing and sets up operating device and the contact system in the casing, the casing is including the base, well lid and the upper cover that the lid closed in proper order, the base encloses with well lid and closes and form cavity down, upper cover and well lid enclose and close and form the cavity, contact system sets up in the cavity of resorption, operating device sets up in the cavity of resorption and the drive is connected contact system, operating device's drive pivot upwards passes the upper cover and connects the handle, be provided with the elasticity joint structure between contact system's smooth roof beam and the base or between contact system's smooth roof beam and well lid, and switch to the joint that divides the floodgate position through the elasticity joint structure and realize spacingly when contact system.

Furthermore, elasticity joint structure includes elasticity bolt portion and bayonet socket, and when contact system switched to the separating brake position, elasticity bolt portion corresponded the bayonet socket and blocked in the bayonet socket.

Further, the elastic bolt part comprises a spring and a pin with a spherical arc-shaped end cap, the spring is limited in a blind hole, the pin is inserted in the spring, and the spherical arc-shaped end cap abuts against the outer end part of the spring; when the contact system is switched to the opening position, the elastic plug pin part corresponds to the bayonet, and the spherical arc-shaped end cap of the pin is clamped into the bayonet under the action of the spring.

Furthermore, the isolating switch is also provided with a first indicating structure for indicating the opening or closing position of the operating mechanism and a second indicating structure for indicating the opening or closing position of the contact system.

Further, the first indicating structure comprises an indicating arrow arranged on the handle, and an opening mark and a closing mark arranged on the surface of the upper cover, and the rotation of the handle enables the indicating arrow to face the corresponding opening mark or closing mark.

Further, the second indicating structure comprises a display window and an indicating piece, the display window is arranged on the surface of the upper cover and penetrates into the upper cavity, and the indicating piece is fixed on the sliding beam or a sliding block connected with the sliding beam; the upper surface of the indicating piece is respectively provided with a brake opening mark and a brake closing mark, and when the sliding beam slides to a brake opening in-place position, the brake opening mark on the indicating piece is exposed in the display window; when the sliding beam slides to the position where the switch is in place, the switch-on mark on the indicating piece is exposed in the display window.

Furthermore, a limiting sliding groove is formed in the inner wall surface of the upper cover, and the indicating piece is arranged in the limiting sliding groove in a sliding mode.

Through the utility model provides a technical scheme has following beneficial effect:

1. an elastic clamping structure is arranged between the sliding beam of the contact system and the base or between the sliding beam of the contact system and the middle cover, and when the contact system is switched to the opening position, the limiting is realized through the clamping of the elastic clamping structure; due to the arrangement, the sliding beam can be prevented from automatically sliding to influence the switch performance when the isolating switch is in the opening state, and the stability of the contact system in the opening position can be well improved; meanwhile, an elastic clamping structure is adopted, when the sliding beam is driven by the operating mechanism to be switched on and slide, elastic deformation can be carried out to realize abdication, and normal switching-on operation is not influenced.

2. The operating mechanism and the contact system are arranged in a layered and isolated mode, the layout space is more sufficient, the layout positions of all the components are more reasonable, the structure unification of the same component is facilitated, and the types of the components are effectively reduced.

Drawings

Fig. 1 is a schematic external view of an isolator switch according to a first embodiment;

FIG. 2 is a top view of the first embodiment of the disconnector;

FIG. 3 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic view of the internal structure of a septum in an upper chamber according to an embodiment;

FIG. 5 is a schematic view of an internal structure of the upper cover according to the first embodiment;

FIG. 6 is a schematic diagram of an embodiment of a disconnector indicating inconsistency;

fig. 7 is a sectional view of a disconnector according to a second embodiment.

Detailed Description

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

The present invention will now be further described with reference to the accompanying drawings and detailed description.

Example one

Referring to fig. 1 to 5, the disconnecting switch provided in this embodiment includes a housing 10, and an operating mechanism 20 and a contact system disposed in the housing 10, specifically, the operating mechanism 20 and the contact system both adopt existing structures, for example, the operating mechanism 20 adopts an energy storage operating mechanism with a driving rotating shaft 21, stores energy by rotating the driving rotating shaft 21, and then releases the energy to drive the contact system to operate, the contact system is a sliding insertion type structure, and includes a sliding beam 31 with a moving contact group 311 and contact blades 32 symmetrically distributed on both sides of the sliding beam 31; the sliding of the sliding beam 31 drives the movable contact group 311 thereon to contact or separate from the contact blades 32 on both sides, so as to realize switching on or switching off.

Casing 10 is including base 11, well lid 12 and the upper cover 13 that closes in proper order, base 11 and well lid 12 enclose to close and form lower cavity 101, upper cover 13 and well lid 12 enclose to close and form upper cavity 102, contact system sets up in lower cavity 101, operating device 20 sets up in upper cavity 102 and drive connection contact system, specifically, one of them cooperation mode in this embodiment is: the upper chamber 102 is also provided with a slide block 40, the slide block 40 passes through the middle cover 12 and is fixedly connected with the slide beam 31, and the operating mechanism 20 is matched with the slide block 40 so as to drive the slide beam 31 of the contact system to slide. The driving shaft 21 of the operating mechanism 20 passes through the upper cover 13 and is connected to the handle 22, and the driving shaft 21 is rotated by rotating the handle 22. Like this, realize operating device 20 and contact system layering isolation setting, the overall arrangement space is more sufficient, and the overall arrangement position of each part is more reasonable, is favorable to the structure of same part to be unified (promptly same part (if touch sword 32) need not give way and adopt multiple different structure to assemble), the effectual kind that reduces spare part.

In this embodiment, an elastic clamping structure 50 is disposed between the sliding beam 31 and the base 11 of the contact system, and when the contact system is switched to the opening position (as shown in fig. 3), the contact system is limited by the elastic clamping structure 50. So set up, can prevent that isolator from sliding by oneself and influencing the switching performance at sliding beam 31 when the separating brake state, the stability of improvement contact system when separating brake position that can be fine, security when further guaranteeing the separating brake and overhauing. Meanwhile, by adopting the elastic clamping structure 50, when the sliding beam 31 is driven by the operating mechanism 20 to perform closing sliding, the elastic clamping structure 50 can perform elastic deformation to realize abdication, so that normal closing operation is not affected.

The elastic clamping structure 50 includes an elastic plug pin portion 51 and a bayonet 52, when the contact system is switched to the opening position, the elastic plug pin portion 51 corresponds to the bayonet 52 and is clamped in the bayonet 52, in this embodiment, the elastic plug pin portion 51 is disposed on the base 11, and the bayonet 52 is disposed on the sliding beam 31 of the contact system. Further, the elastic plug pin part 51 comprises a spring 511 and a pin 512 with a spherical arc-shaped end cap, the spring 511 is limited in a blind hole, specifically, the blind hole is arranged on the base 11, the pin 512 is inserted in the spring 511, and the spherical arc-shaped end cap is abutted on the outer end part of the spring 511; when the contact system is switched to the open position, the resilient plug pin 51 corresponds to the bayonet 52, and the ball-arc end cap of the pin 512 is snapped into the bayonet 52 by the spring 511. When the slider 31 performs closing slide by the operation mechanism 20, the pin 512 is disengaged from the notch 52. The provision of the spherical end cap of the pin 512 provides a good guiding function, so that the engagement and disengagement of the bayonet 52 can be facilitated. Of course, in other embodiments, the layout positions of the elastic plug pin 51 and the bayonet 52 can be interchanged, that is, the elastic plug pin 51 is disposed on the slide beam 31, and the bayonet 52 is disposed on the base 11; or the elastic clamping structure 50 is not limited thereto.

Further, the disconnecting switch has a first indicating structure for indicating the opening or closing position of the operating mechanism 20 and a second indicating structure for indicating the opening or closing position of the contact system. So set up, whether operating personnel can look over first instruction structure and second instruction structure instruction state unanimous and judge this isolator and normally, only first instruction structure and second instruction structure instruction state unanimous (if all instruct separating brake or all instruct when closing a floodgate) just calculate isolator normal operating, so can guarantee safety.

Specifically, in this embodiment, the first indicating structure includes an indicating arrow 61 disposed on the handle 22 and an opening mark 621 and a closing mark 622 disposed on the surface of the upper cover 13, and the rotation of the handle 22 makes the indicating arrow 61 face the corresponding opening mark 621 or closing mark 622, so as to visually confirm the state of the operating mechanism 20 on the surface of the disconnector. Simple structure and easy realization.

The second indicating structure comprises a display window 63 and an indicator 64, the display window 63 is arranged on the surface of the upper cover 13 and penetrates into the upper chamber 102, and the indicator 64 is directly fixed on the sliding beam 31; the upper surface of the indicator 64 is provided with a switching-off mark 641 and a switching-on mark 642 respectively, the sliding of the sliding beam 31 drives the indicator 64 to move, and when the sliding beam 31 slides to a switching-off in-place position, the switching-off mark 641 on the indicator 64 is exposed in the display window 63; when the sliding beam 31 slides to the closing in-place position, the closing mark 642 on the indicator 64 is exposed in the display window 63. Thus, the state of the contact system can be visually confirmed on the surface of the disconnector. Simple structure and easy realization.

As shown in fig. 2, the first indication structure and the second indication structure both indicate the opening state, and the isolating switch is normal; as shown in fig. 6, the first indicating structure indicates a closing state, and the second indicating structure indicates an opening state, the disconnector is abnormal.

Furthermore, a limiting sliding groove 131 is formed on the inner wall surface of the upper cover 13, and the indicating piece 64 is slidably arranged in the limiting sliding groove 131, so that the indicating piece 64 is limited and guided, the indicating is more accurate, and the deviation is not easy to occur.

Example two

The isolating switch provided by the embodiment has substantially the same structure as the isolating switch provided by the first embodiment, except that: referring to fig. 7, in the present embodiment, the elastic clamping structure 50 is disposed between the sliding beam 31 and the middle cover 12 of the contact system; specifically, the elastic plug pin part 51 of the elastic clamping structure 50 is arranged on the sliding beam 31, and the bayonet 52 is arranged on the middle cover, so that the sliding beam can be prevented from automatically sliding to influence the switching performance when the isolating switch is in a switching-off state, the stability of the contact system in the switching-off position can be well improved, and the safety during switching-off maintenance is further guaranteed.

More specifically, in the present embodiment, the indicator 64 of the second indicating structure is fixed to the slider 40 connected to the slide beam 31, and thus, can move synchronously with the slide beam 31 to achieve stable indication.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A disconnecting switch comprises a shell, an operating mechanism and a contact system, wherein the operating mechanism and the contact system are arranged in the shell, and the disconnecting switch is characterized in that: the casing is including the base, well lid and the upper cover that the lid closed in proper order, the base encloses with well lid and closes and form cavity down, the upper cover encloses with well lid and closes and form cavity, contact system sets up in the cavity of resorption, operating device sets up in the epicoele and the drive is connected contact system, operating device's drive pivot upwards passes the upper cover and connects the handle, be provided with the elasticity joint structure between contact system's the smooth roof beam and the base or between contact system's smooth roof beam and the well lid, and realize spacingly through the joint of elasticity joint structure when contact system switches to separating brake position.

2. The isolating switch of claim 1, wherein: the elastic clamping structure comprises an elastic plug pin part and a bayonet, and when the contact system is switched to the opening position, the elastic plug pin part corresponds to the bayonet and is clamped into the bayonet.

3. The disconnector according to claim 2, wherein: the elastic bolt part comprises a spring and a pin column with a spherical arc-shaped end cap, the spring is limited in a blind hole, the pin column is inserted in the spring, and the spherical arc-shaped end cap is abutted against the outer end part of the spring; when the contact system is switched to the opening position, the elastic plug pin part corresponds to the bayonet, and the spherical arc-shaped end cap of the pin column is clamped into the bayonet under the action of the spring.

4. The isolating switch of claim 1, wherein: the disconnecting switch is also provided with a first indicating structure used for indicating the opening or closing position of the operating mechanism and a second indicating structure used for indicating the opening or closing position of the contact system.

5. The disconnector of claim 4, wherein: the first indicating structure comprises an indicating arrow arranged on the handle, and an opening mark and a closing mark which are arranged on the surface of the upper cover, and the indicating arrow faces the corresponding opening mark or closing mark by the rotation of the handle.

6. The disconnector according to claim 4, wherein: the second indicating structure comprises a display window and an indicating piece, the display window is arranged on the surface of the upper cover and penetrates into the upper cavity, and the indicating piece is fixed on the sliding beam or a sliding block connected with the sliding beam; the upper surface of the indicating piece is respectively provided with a brake separating mark and a brake closing mark, and when the sliding beam slides to a brake separating in-place position, the brake separating mark on the indicating piece is exposed in the display window; when the sliding beam slides to the switching-on in-place position, the switching-on mark on the indicating piece is exposed in the display window.

7. The isolating switch of claim 6, wherein: a limiting sliding groove is formed in the inner wall surface of the upper cover, and the indicating piece is arranged in the limiting sliding groove in a sliding mode.