CN205104395U

CN205104395U - Motor protective circuit breaker's OFF locking plate device

Info

Publication number: CN205104395U
Application number: CN201520922309.6U
Authority: CN
Inventors: 史慧
Original assignee: Taian Technology (Wuxi) Co Ltd
Current assignee: Taian Technology (Wuxi) Co Ltd
Priority date: 2015-11-18
Filing date: 2015-11-18
Publication date: 2016-03-23
Anticipated expiration: 2025-11-18

Abstract

The utility model discloses a motor protective circuit breaker's OFF locking plate device, including OFF locking plate, handle, handle gear and upper cover. The OFF locking plate can remove in the cavity to two limit stations in inserting the cavity of handle, at first limit station, the OFF locking plate inserts to the cavity bottom of handle, and the limiting hook of OFF locking plate closes as an organic wholely with the limiting groove wall of handle, at second limit station, the OFF locking plate is extracted from the cavity of handle, and the limiting hook of OFF locking plate falls into the spacing groove of handle to with spacing groove outer wall butt, the handle rotates the back, the stopper will with the limiting hook butt. The utility model discloses can pin motor protective circuit breaker handle when motor maintenance etc. Needs, prevent that motor protective circuit breaker from coming into operation, avoid maintenance personal hot -line operation, effectively ensure user's safety.

Description

The OFF locking plate device of motor protection circuit breaker

Technical field

The utility model relates to the motor protection circuit breaker parts in a kind of Low Voltage Electrical Apparatus.

Background technology

Motor protection circuit breaker is the important devices of motor protection, has the advantages that precision is high, good reliability, environmental suitability are strong, is high-tech product of new generation, can provide better guarantee for industry, agricultural and people's normal life and trouble free service.Current motor protection circuit breaker handle when Electromotor Maintenance etc. needs cannot pin, and makes motor protection circuit breaker enter operating state, will make maintenance personal's hot line job, and cause potential safety hazard once handle rotates.

Utility model content

For the problems referred to above; the utility model provides a kind of OFF locking plate device of motor protection circuit breaker; ensure that the handle of the motor protection circuit breaker when maintenance etc. needs can not arbitrarily rotate, make motor protection circuit breaker cannot enter operating state, avoid potential safety hazard.

The technical solution of the utility model is as follows:

An OFF locking plate device for motor protection circuit breaker, comprises OFF locking plate, handle, handle bar gear and upper cover;

Described OFF locking plate has positive stop hook;

The handle base that described handle comprises handlebody, is connected with handlebody; There is in handlebody the cavity that can hold OFF locking plate; There is bottom handle base the installing hole that can coordinate with handle bar gear, and around the stopper slot of installing hole, stopper slot inwall has a breach;

Described handle bar gear is arranged on tops, can rotate, and coordinates fixing with the installing hole of handle;

Described upper tops has guide vane end stop, and described guide vane end stop is arranged around handle bar gear, and is contained in the stopper slot of handle;

Described OFF locking plate inserts in the cavity of handle, can move to two limit stations in cavity;

At the first limit station, described OFF locking plate is inserted into the cavity bottom of handle, and the positive stop hook of OFF locking plate falls into the breach of the stopper slot inwall of handle, is integrated with stopper slot inwall;

At the second limit station, described OFF locking plate is extracted from the cavity of handle, and the positive stop hook of OFF locking plate falls into the stopper slot of handle, and abuts with stopper slot outer wall; After handle rotates, guide vane end stop will abut with positive stop hook.

Further, described OFF locking plate has lockhole.

Advantageous Effects of the present utility model is:

The OFF locking plate device of motor protection circuit breaker of the present utility model; be arranged at motor protection circuit breaker rotary-top handle place; when Electromotor Maintenance etc. needs, motor protection circuit breaker handle can be pinned, prevent motor protection circuit breaker from coming into operation, avoid maintenance personal's hot line job.The utility model effectively ensure that the safety of user, and this OFF locking plate apparatus design is simple, and cost is lower.

Accompanying drawing explanation

Fig. 1 is STRUCTURE DECOMPOSITION figure of the present utility model.

Fig. 2 is the schematic diagram that the utility model is in the first state.

Fig. 3 is the schematic diagram that the utility model is in the second state.

Fig. 4 is the structural representation of OFF locking plate and handle.

Description of symbols in figure: 1.OFF locking plate; 2. handle; 3. handle bar gear; 4. upper cover; A. positive stop hook; B. guide vane end stop; C. stopper slot outer wall.

Embodiment

Below in conjunction with accompanying drawing, embodiment of the present utility model is described further.

The OFF locking plate device of motor protection circuit breaker of the present utility model as shown in Figure 1, comprises OFF locking plate 1, handle 2, handle bar gear 3 and upper cover 4.

OFF locking plate 1 has positive stop hook A.The handle base that handle 2 comprises handlebody, is connected with handlebody; There is in handlebody the cavity that can hold OFF locking plate 1; There is bottom handle base the installing hole that can coordinate with handle bar gear 3, and around installing hole, for holding the stopper slot of guide vane end stop B, stopper slot inwall has a breach, see Fig. 4.Handle bar gear 3 is arranged on upper cover 4 top, can rotate, and coordinates fixing when mounted with the installing hole of handle 2.Upper cover 4 top has guide vane end stop B, and guide vane end stop B is arranged around handle bar gear 3, and is contained in after mounting in the stopper slot of handle 2.

OFF locking plate 1 inserts in the cavity of handle 2, two limit stations can be moved to: at the first limit station in cavity, OFF locking plate 1 is inserted into the cavity bottom of handle 2, and the positive stop hook A of OFF locking plate 1 falls into the breach of the stopper slot inwall of handle 2, is integrated with stopper slot inwall; At the second limit station, OFF locking plate 1 is extracted from the cavity of handle 2, and the positive stop hook A of OFF locking plate 1 falls into the stopper slot of handle 2, and abuts with stopper slot outer wall C.

Operation principle of the present utility model is as follows:

When motor protection circuit breaker normally works; OFF locking plate 1 inserts in handle 2 and (utilizes the elasticity of the positive stop hook A of OFF locking plate 1); be inserted into the end; again handle 2 is installed on handle bar gear 3; as shown in Figure 2; now handle 2 can normally turn 90 degrees in dextrorotation, makes motor protection circuit breaker in running order.

When circuit need keep in repair; the handle of motor protection circuit breaker need be made arbitrarily not rotate; then OFF locking plate 1 level from handle 2 is extracted to Fig. 3 state left; when extracting; the positive stop hook A of OFF locking plate 1 is spacing firmly by the stopper slot outer wall C of handle 2; make OFF locking plate 1 can not depart from handle 2, as shown in Figure 4.The positive stop hook A of handle 2, OFF locking plate 1 of turning clockwise if now want is blocked by the guide vane end stop B of upper cover 4, can not normal rotating handles 2, makes motor protection circuit breaker enter operating state, avoids potential safety hazard.Simultaneously for preventing human factor from advancing in handle 2 cavity by OFF locking plate 1, a little lock can be added at the round keyhole place of OFF locking plate 1.

Above-described is only preferred implementation of the present utility model, and the utility model is not limited to above embodiment.Be appreciated that the oher improvements and changes that those skilled in the art directly derive or associate under the prerequisite not departing from basic conception of the present utility model, all should think and be included within protection range of the present utility model.

Claims

1. an OFF locking plate device for motor protection circuit breaker, is characterized in that: comprise OFF locking plate (1), handle (2), handle bar gear (3) and upper cover (4);

Described OFF locking plate (1) has positive stop hook (A);

The handle base that described handle (2) comprises handlebody, is connected with handlebody; There is in handlebody the cavity that can hold OFF locking plate (1); There is bottom handle base the installing hole that can coordinate with handle bar gear (3), and around the stopper slot of installing hole, stopper slot inwall has a breach;

Described handle bar gear (3) is arranged on upper cover (4) top, can rotate, and coordinates fixing with the installing hole of handle (2);

Described upper cover (4) top has guide vane end stop (B), and described guide vane end stop (B) is arranged around handle bar gear (3), and is contained in the stopper slot of handle (2);

Described OFF locking plate (1) is inserted in the cavity of handle (2), can move to two limit stations in cavity;

At the first limit station, described OFF locking plate (1) is inserted into the cavity bottom of handle (2), the positive stop hook (A) of OFF locking plate (1) falls into the breach of the stopper slot inwall of handle (2), is integrated with stopper slot inwall;

At the second limit station, described OFF locking plate (1) is extracted from the cavity of handle (2), the positive stop hook (A) of OFF locking plate (1) falls into the stopper slot of handle (2), and abuts with stopper slot outer wall (C); After handle (2) rotates, guide vane end stop (B) will abut with positive stop hook (A).

2. the OFF locking plate device of motor protection circuit breaker according to claim 1, is characterized in that: described OFF locking plate (1) has lockhole.