CN203760355U - Manual operating mechanism of moulded case circuit breaker - Google Patents

Abstract

The utility model discloses a manual operating mechanism of a moulded case circuit breaker. The manual operating mechanism of the moulded case circuit breaker comprises a spring piece, a convex plate, a torsional spring, a limiting piece, a base and a screw, wherein the spring piece is provided with a V-shaped bending portion and a lengthening end; the convex plate comprises a triangular ledge, a groove and a projection; the V-shaped bending portion is in contact with the triangular ledge at an open position; the convex plate is connected with the torsional spring; the limiting piece is provided with a first tip and a second tip; the groove is in contact with the first tip at the open position; the base is provided with a stopper; the stopper is in contact with the projection at a close position; one end of the spring piece is fixed on the circular projection through the screw; and the second tip is in contact with the lengthening end. By using the manual operating mechanism, a handle can be positioned and indicates accurately and cannot shake, deviations can be avoided, and a user cannot be mistakenly guided.

Description

The Shou Cao mechanism of breaker of plastic casing

Technical field

The utility model relates to a kind of circuit breaker, particularly relates to a kind of Shou Cao mechanism of breaker of plastic casing.

Background technology

In the Shou Cao mechanism of the circuit breaker of now a lot of companies, close a floodgate, separating brake does not all have specific spacing design, structure shown in general employing Fig. 1, circuit breaker handle part one end is stuck between the sheath upper end a and sheath lower end b of connecting rod 1, handle is stuck between sheath upper end a in connecting rod 1 and sheath lower end b and possesses with it certain gap, the full position self poisoning by circuit breaker handle, do not have corresponding spacing design, or some prior aries can increase an extension spring or torsion spring, make connecting rod 1 be subject to the effect of spring force, its sheath upper end a or b place, sheath lower end contact with handle and make connecting rod location, handle " On " or " Off " indicating positions on panel is also located thereupon.The indicating positions of handle is decided by circuit breaker handle position substantially, and in the ordinary course of things, handle can wave and rock, and can cause instruction unstable, phenomenon devious.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of Shou Cao mechanism of breaker of plastic casing, its make handle location and instruction more accurate, can not shake, there is not deviation.

The utility model solves above-mentioned technical problem by following technical proposals: a kind of Shou Cao mechanism of breaker of plastic casing, it is characterized in that, it comprises spring leaf, convex plate, torsion spring, limited part, pedestal, screw, spring leaf has V-type dogleg section and extended end, convex plate comprises triangle ledge, groove, projection, V-type dogleg section and triangle ledge touch mutually in the time of open position, convex plate is connected with torsion spring, limited part has the first most advanced and sophisticated head and the second most advanced and sophisticated head, groove and the first most advanced and sophisticated head touch in the time of open position, pedestal has a block, block touches when the closing position mutually with projection, one end of spring leaf is noticed screw and is fixed in a circular protrusions, and the second most advanced and sophisticated head contacts with extended end.

Preferably, the side of described projection is provided with a retainer.

Preferably, described circular protrusions is located on a pedestal, and pedestal is positioned on a position-arresting disk.

Preferably, the side of described pedestal is provided with holder.

Preferably, described circular protrusions is provided with a pressing plate.

Positive progressive effect of the present utility model is: the utility model make handle location and instruction more accurate, can not shake, there is not deviation, can not mislead to user, improved to a certain extent the performance of product.

Brief description of the drawings

Fig. 1 is the structural representation of the Shou Cao mechanism of existing circuit breaker.

Fig. 2 is the Shou Cao mechanism of the utility model breaker of plastic casing structural representation in the time of gate-dividing state.

Fig. 3 is the be hit by a bullet structural representation of reed of the utility model.

Fig. 4 is the enlarged diagram at the C place in Fig. 2.

Fig. 5 is the enlarged diagram at the D place in Fig. 2.

Fig. 6 is the structural representation of the utility model camber plate.

Fig. 7 is the Shou Cao mechanism of the utility model breaker of plastic casing structural representation in the time of "on" position.

Fig. 8 is the enlarged diagram at the f place in Fig. 7.

Embodiment

Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to describe the technical solution of the utility model in detail.

As shown in Fig. 2 to Fig. 8, the Shou Cao mechanism of the utility model breaker of plastic casing comprises spring leaf 2, convex plate 3, torsion spring 5, limited part 6, pedestal 7, screw 13, spring leaf 2 has V-type dogleg section 21 and extended end 22, convex plate 3 comprises triangle ledge 31, groove 32, projection 33, V-type dogleg section 21 and triangle ledge 31 touch mutually in the time of open position, convex plate 3 is connected with torsion spring 5, limited part 6 has first most advanced and sophisticated 61 and second most advanced and sophisticated 62, groove 32 and first most advanced and sophisticated 61 touch in the time of open position, pedestal 7 has a block 71, block 71 touches when the closing position mutually with projection 33, one end of spring leaf 2 is noticed screw 13 and is fixed in a circular protrusions 8, and second most advanced and sophisticated 62 contacts with extended end 22.The side of projection 33 is provided with a retainer 4.Circular protrusions 8 is located on a pedestal 9, and pedestal 9 is positioned on a position-arresting disk 10, and Comparision is stable like this.The side of pedestal 9 is provided with holder 11.Circular protrusions 8 is provided with a pressing plate 12, and pressing plate 12 is positioned at the side of extended end 22, and pressing plate is for positioning ejection reed 2.

In the time that the triangle ledge 31 of convex plate 3 moves to open position, be subject to the effect of torsion spring power, by touching mutually with the V-type dogleg section 21 of spring leaf 2 (touch simultaneously or before circuit breaker realized sub-switching operation), convex plate 3 has been limited in relevant position like this, also mean that retainer 4 and handle position have been limited in relevant position, be that handle is indicated in " Off " position on panel, and because convex plate 3 may be subject to the power of torsion spring too large, can make the V-type dogleg section 21 of convex plate 3 relative spring leafs 2 relatively move, so increased a groove 32 (as Fig. 5 and Fig. 6) on convex plate 3, as shown in Figure 4, first most advanced and sophisticated 61 of limited part 6 is absorbed in groove 32, " Off " in the situation that, also played the relative sliding that has stopped that convex plate brings because of the effect of torsion spring 5, make handle location more accurate, can not shake, there is not deviation, can not mislead to user, improve to a certain extent the performance of product.Mention the lockable Shou Cao of retainer mechanism, handle cannot be rotated.

As shown in Figure 7 and Figure 8, the projection 33 of convex plate 3 touch block 71 on pedestal 7 (touch simultaneously or before circuit breaker realized closing operation), and projection 33 block effect limited convex plate 3 continue rotatablely move, thereby make retainer 4 and hand behaviour handle position spacing in relevant position, be that handle is indicated more accurately at " On " position, i.e. closing position on panel.It should be noted that simultaneously, from the structure and material performance of spring leaf, can be to the effect of open position limited location, but hand behaviour handle carries out by closing a floodgate to separating brake circuit breaker, separating brake is to closing a floodgate, and threads off to and carry rotation when operation of button, and the motion that the V-type dogleg section of spring leaf can't be blocked convex plate (is to have certain elasticity and toughness because of spring leaf, so or can continue that convex plate rotatablely moves), can and not carry button to on/off switch and impact.

Above-described specific embodiment; technical problem, technical scheme and beneficial effect to solution of the present utility model further describe; institute is understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment of making, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.

Claims (5)

1. the Shou Cao mechanism of a breaker of plastic casing, it is characterized in that, it comprises spring leaf, convex plate, torsion spring, limited part, pedestal, screw, spring leaf has V-type dogleg section and extended end, convex plate comprises triangle ledge, groove, projection, V-type dogleg section and triangle ledge touch mutually in the time of open position, convex plate is connected with torsion spring, limited part has the first most advanced and sophisticated head and the second most advanced and sophisticated head, groove and the first most advanced and sophisticated head touch in the time of open position, pedestal has a block, and block touches when the closing position mutually with projection; One end of spring leaf is noticed screw and is fixed in a circular protrusions, and the second most advanced and sophisticated head contacts with extended end.

2. the Shou Cao mechanism of breaker of plastic casing as claimed in claim 1, is characterized in that, the side of described projection is provided with a retainer.

3. the Shou Cao mechanism of breaker of plastic casing as claimed in claim 2, is characterized in that, described circular protrusions is located on a pedestal, and pedestal is positioned on a position-arresting disk.

4. the Shou Cao mechanism of breaker of plastic casing as claimed in claim 3, is characterized in that, the side of described pedestal is provided with holder.

5. the Shou Cao mechanism of breaker of plastic casing as claimed in claim 4, is characterized in that, described circular protrusions is provided with a pressing plate.