CN204809657U - A locking clip subassembly for inciting somebody to action circuit breaker locks guide rail - Google Patents

Abstract

A locking clip assembly (4) for locking a circuit breaker (1) to a guide rail (2), the locking clip assembly comprising a bracket (41) fixed to the housing of the circuit breaker; the locking clip (42), the locking clip is provided on the bracket and can be in the locked position (A) for locking the circuit breaker to the guide rail and the unlocked position (B) for unlocking the circuit breaker from the guide rail between; and the locking member (43). Wherein said bracket, locking clip and locking member cooperate with each other, so that when said locking clip is in said locking position (A), said locking clip (42) can be locked to said bracket (41).

Description

Locking clip assembly for locking circuit breaker to rail

technical field

The utility model relates to a locking clip assembly, in particular to a locking clip assembly for locking a circuit breaker to a guide rail.

Background technique

In conventional molded case circuit breaker (MCCB) products, it is usually necessary to fix the product to the board with screws, thus resulting in a large size of the molded case circuit breaker and a long operating time when installing the molded case circuit breaker on the board .

In the prior art, in a miniature circuit breaker (MCB), there is also a special accommodating groove for accommodating a locking clip in the case of the circuit breaker to install the circuit breaker on the guide rail. However, such a configuration requires special accommodation grooves to be provided on the circuit breaker housing. The MCB locking clip is generally made of plastic material, and the thickness of the parts is relatively thick, so the locking force provided is relatively limited.

Therefore, there is a need for a locking clip set capable of locking the circuit breaker to the guide rail, which is convenient for installation and disassembly and reliable in operation.

Utility model content

The utility model is made in view of the above-mentioned problems in the prior art, and the purpose of the utility model is to provide a locking clip assembly which is easy to install and disassemble, and works reliably.

The utility model mainly locks the circuit breaker to the guide rail through a locking clip assembly including the bracket and the locking clip, thereby making the operation convenient and reliable.

The utility model provides a reliable and convenient locking clip assembly by providing a mechanical structure capable of locking the circuit breaker to the guide rail.

The object of the utility model is achieved by providing a locking clip assembly for locking a circuit breaker to a guide rail, the locking clip assembly includes a bracket fixed to the housing of the circuit breaker; a locking clip, the locking A clip is provided on the bracket and is movable between a locked position for locking the circuit breaker to the rail and an unlocked position for unlocking the circuit breaker from the rail, wherein the bracket and locking clip are mutually cooperate such that the locking clip is lockable to the bracket when the locking clip is in the locked position.

In a preferred embodiment of the present utility model, the bracket includes a base and bosses protruding from both sides of the base perpendicular to the base along the locking or unlocking direction of the locking clip, and screw holes are provided on the bosses , for fixing the bracket on the housing of the circuit breaker.

In a preferred embodiment of the present utility model, the bracket further includes flanges respectively extending outward along the unlocking direction from the first ends of the two bosses away from the guide rail, for locking the locking clip .

In a preferred embodiment of the present utility model, a locking piece is arranged on the base of the bracket, and the locking piece protrudes from the surface of the base for exerting elastic pressure on the locking clip.

In a preferred embodiment of the present utility model, the bracket further includes a first groove, the first groove is arranged on the part of the base close to the flange, and the shape matches the first groove The locking member is partially accommodated in the first groove so that the locking member protrudes from the surface of the base for applying elastic pressure to the locking clip.

In a preferred embodiment of the present utility model, the locking member is in the form of a ring.

In a preferred embodiment of the present utility model, the locking member is in the form of a pin.

In a preferred embodiment of the present invention, the locking clip is held between the two bosses, and the locking clip includes a plate-shaped locking clip main body arranged parallel to the base.

In a preferred embodiment of the present utility model, the locking clip includes a locking piece that is bent from the main body of the locking clip downward toward the base and then outwardly away from the locking clip to extend substantially parallel to the main body of the locking clip, The locking tab is capable of contacting the flange beneath the flange when the locking clip is in the locked position.

In a preferred embodiment of the present invention, the locking clip body further includes a cantilever beam cut out from the locking clip body along the locking direction or the unlocking direction, the cantilever beam has a protrusion protruding toward the base, when the When the locking clip is in the locking position, the locking member presses the protrusion in a direction away from the base so that the locking piece also presses the flange in a direction away from the base , so that the locking clip is locked to the bracket.

In a preferred embodiment of the present invention, the cantilever beam extends from the main body of the locking clip toward the guide rail, and the protrusion is V-shaped or U-shaped.

In a preferred embodiment of the present invention, the cantilever beam extends from the locking clip body away from the guide rail, and the protrusion is spherical.

In a preferred embodiment of the present utility model, it is characterized in that the bracket further includes: a second groove, the second groove intersects with a part of the first groove, and the depth of the second groove is greater than The depth of the first groove is such that the locking member can be elastically deformed therein; the third groove is arranged on a part of the base close to the guide rail; the opening is the opening It is arranged on the end surface of the base close to the guide rail, and the opening communicates with the third groove; and a guide groove, which is arranged on both sides of the third groove and on the One side of the base facing the guide rail is open.

In a preferred embodiment of the present invention, the bracket further includes a support plate extending downward from the end of the base close to the guide rail and substantially parallel to the base, the support plate abuts against the On the card slot, the guide rail is placed on the pallet.

In a preferred embodiment of the present utility model, the locking clip includes a first locking leg, a second locking leg and a third locking leg extending from the main body of the locking clip toward the guide rail, wherein the first locking leg The end portion of is bent toward the base and then extends parallel to the locking clip main body so as to pass through the third groove and the opening to lock the circuit breaker to the guide rail, the second locking leg and the third locking leg are arranged symmetrically with respect to the first locking leg, and the ends of the second and third locking legs are bent toward the base relative to the second and third locking legs and then toward the guide rail The bent portion is extended so that the ends of the second and third locking legs can be received in corresponding guide grooves to enable the circuit breaker to be fixed to the guide rail.

In a preferred embodiment of the present invention, the bracket is made of plastic material, and the locking member and the locking clip are made of metal material.

Utilizing the locking clip assembly according to the utility model, not only can the circuit breaker be quickly and easily installed on the guide rail, but also the clamping force for holding the guide rail can be designed according to the needs, and at the same time, the disassembly of the circuit breaker from the guide rail can be changed easily. Therefore, the locking clip assembly according to the utility model is convenient to install and disassemble, and works reliably.

Description of drawings

Other purposes of the present utility model, feature and industrial and technical importance will become easier to understand by the following detailed description of the specific embodiment of the present utility model in conjunction with accompanying drawing, in the accompanying drawing:

Fig. 1 is a schematic diagram of locking a circuit breaker to a guide rail according to a locking clip assembly of the present invention;

Figure 2 is an exploded view of the locking clip assembly according to the first embodiment of the present invention;

Figure 3 shows a locking clip assembly in a locked state according to a first embodiment of the present invention;

Fig. 4 shows the locking clip assembly in the unlocked state according to the first embodiment of the present invention;

Figure 5 is an exploded view of a locking clip assembly according to a second embodiment of the present invention;

Figure 6 shows a locking clip assembly in a locked state according to a second embodiment of the present invention; and

Fig. 7 shows a locking clip assembly in an unlocked state according to a second embodiment of the present invention.

Detailed ways

Preferred embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

Fig. 1 is a schematic diagram of locking a circuit breaker 1 to a guide rail 2 by a locking clip assembly 4 according to the present invention. As shown in Figure 1, the locking clip assembly 4 according to the utility model is fixed on the circuit breaker 1, and the circuit breaker 1 is provided with a card slot 3, and one side edge of the guide rail 2 is stuck on an edge of the card slot, and the guide rail The other side edge of the circuit breaker is locked into the slot of the circuit breaker through the locking clip assembly 4 according to the present invention.

2, 5 are detailed views of the specific structure of the locking clip assembly according to the first and second embodiments of the present invention. 3, 4; 6, 7 are views of the locking clip assembly in the locked state and the unlocked state according to the first and second embodiments of the present invention, respectively. The specific structure and operation method of the locking clip assembly for locking the circuit breaker to the guide rail according to the present invention will be described in detail below with reference to accompanying drawings 2-7.

As shown in FIG. 2 , the locking clip assembly 4 according to the present invention generally includes a bracket 41 , a locking clip 42 and a locking member 43 .

The bracket 41 generally includes a base 411 and a boss 412, which protrudes from both sides of the base perpendicular to the base along the locking direction I1 or unlocking direction I2 of the locking clip, and the boss is provided with a screw hole for fixing the bracket fixed on the case of the circuit breaker. In Figure 2, two screw holes are set on each boss, of course, one or more than two screw holes can also be set on each boss according to the needs, and then the bracket is fixed on the case of the circuit breaker by screws. physically. In this way, the portion of the base between the two bosses forms a space for retaining the locking clip therein.

The bracket 41 further includes two flanges 4121 respectively extending outward from the first ends of the two bosses away from the guide rail along the unlocking direction, for locking the locking clip. The flange may have a lower surface parallel to the surface of the base. Preferably, the flange is formed to have an inverted "L" cross-sectional shape, as shown in FIGS. 3 and 4 . A locking piece 43 is arranged on the base 411 of the support, and this locking piece protrudes from the surface of the base, and is used to apply elastic pressure to the locking clip, wherein the locking piece can be arranged on the support in any way, as long as it can It is sufficient to be able to apply elastic pressure to the locking clip. Preferably, the base 411 of the bracket further includes a first groove 4111, the first groove is arranged on the part of the base close to the flange, and the locking member 43 whose shape matches the first groove is partially accommodated in the first groove. In a groove so that the locking member protrudes from the surface of the base, it is used to apply elastic pressure to the locking clip. In Figure 2, the locking member is in the form of a ring, and correspondingly, the first groove is also a ring Of course, the shape of the locking member can be set to any shape as required, as long as it can exert elastic pressure on the locking clip.

Preferably, a second groove 4112 , a third groove 4113 , an opening 4114 and a guide groove 4115 are further provided on a portion of the base 411 close to the flange. Wherein, the second groove intersects with a part of the first groove, and the depth of the second groove is greater than the depth of the first groove so that the locking member can be elastically deformed therein. Of course, the second groove may not be provided. Instead, a protrusion is directly provided on the part of the base close to the flange, and the shape and size of the protrusion can be set as required. The third groove is provided on the part of the base close to the guide rail, and the opening 4114 is provided on the end surface of the base close to the guide rail, and the opening communicates with the third groove 4113 . The guide groove 4115 is arranged on both sides of the third groove and is open on the side of the base facing the guide rail. Preferably, the guide groove is arranged close to the boss or partly located in the boss, as shown in FIG. 2 . The bracket further includes a support plate 413 extending downward from the end of the base close to the guide rail, away from the base and approximately parallel to the base, the support plate leans against the slot, and the guide rail can be placed on the support plate.

A locking clip 42 is provided on the bracket 41 and is movable between a locked position A for locking the circuit breaker to the guide rail and an unlocked position B for unlocking the circuit breaker from the guide rail. The locking clip is held between two bosses, and the locking clip 42 includes a locking clip body 421 disposed parallel to the base and preferably plate-shaped, as shown in FIG. 2 . The locking clip includes two locking tabs 422 that are bent from the main body of the locking clip downwards toward the base and then outwards away from the locking clip to extend approximately parallel to the main body of the locking clip. As shown in FIG. 2 , when the locking clip is in the locked position A , the locking piece can be in contact with the flange directly under the flange 4121 . The locking clip body further includes a cantilever beam 4211 cut out from the locking clip body along the locking or unlocking direction, the cantilever beam has a protrusion 42111 protruding towards the base, when the locking clip is in the locked position, the locking member moves away from the base Press the protrusion of the cantilever beam in the direction so that the locking tab also presses the flange in the direction away from the base, so that the locking clip is locked to the bracket. In FIG. 2, the cantilever beam 4211 extends from the locking clip body 421 towards the rail, and preferably, the protrusion is V-shaped or U-shaped. Preferably, the locking clip further includes a first locking leg 423 , a second locking leg 424 and a third locking leg 425 extending from the locking clip body towards the rail. Wherein, the end of the first locking leg is bent toward the base and then extends parallel to the main body of the locking clip so as to pass through the third groove and opening to fix the circuit breaker to the guide rail, preferably, the end of the first locking leg It is roughly "Z" shaped. The second locking leg and the third locking leg are symmetrically arranged with respect to the first locking leg, and the ends of the second and third locking legs are bent toward the base relative to the second and third locking legs and then extend toward the guide rail. The bent portion is such that the ends of the second and third locking legs can be received in corresponding guide grooves in the base, so that the circuit breaker can be fixed to the guide rail. Further, the locking clip may include a circle or an aperture extending from the locking clip main body toward the unlocking direction, so that a person's finger or a screwdriver or the like can be inserted therein to push or pull the locking clip in the locking direction or in the unlocking direction. move up.

Further, the above-mentioned bracket can preferably be made of plastic material, and the locking member and the locking clip can preferably be made of metal material, so that the locking clip can be made thinner while maintaining its locking legs against each other. High clamping force of the guide rail. Certainly, the materials of the bracket, the locking member and the locking clip are not limited thereto, as long as they can realize the technical purpose of the present utility model.

Wherein the bracket and the locking part on it can cooperate with the locking clip, so that when the locking clip is in the locked position, the locking clip can be locked to the bracket.

Fig. 5 is an exploded view of a locking clip assembly according to a second embodiment of the present invention. It can be clearly seen from Fig. 5 that the main difference between the locking clip assembly in Fig. 5 and the locking clip assembly in Fig. 2 is only the locking clip The cantilever beams above are set up differently. In Figure 5, the cantilever beam extends from the locking clip body away from the rail and the protrusion is spherical. In addition, in FIG. 5 , the locking member put into the first groove is in the form of a pin.

The specific structure of the locking clip assembly according to the present invention has been introduced above, and the operation mode of the locking clip assembly will be described below in conjunction with FIGS. 3 , 4 , 6 , and 7 .

When it is necessary to lock the circuit breaker on the guide rail, push the locking clip held between the two bosses of the bracket along the locking direction I1 from the unlocking position B (as shown in Figures 4 and 7) towards the locking position A (as shown in Figure 4, 7). 3 and 6) move, when the first, second and third locking legs 423, 424, 425 of the locking clip move to the position of the locking rail, the locking piece 422 of the locking clip 42 is located below the flange 4121 of the bracket And in contact with the flange, the protrusion 42111 of the cantilever beam 4211 of the locking clip also moves onto the locking piece. At this time, the locking piece 43 exerts an elastic thrust on the locking clip in a direction away from the base of the bracket, thereby also causing The locking piece 422 of the locking clip also exerts a thrust on the flange 4121 of the bracket in the direction away from the base of the bracket, thereby locking the locking clip on the bracket. At this time, the locking clip assembly is in the locking position A, as shown in Figures 3 and 6 shown.

When it is necessary to unlock the circuit breaker from the guide rail, pull the locking clip held between the two bosses of the bracket along the unlocking direction I2 from the locking position A (as shown in Figures 3 and 6) towards the unlocking position B (as shown 4 and 7) move, when the first, second and third locking legs 423, 424, 425 of the locking clip 42 move to the position of unlocking the guide rail, the locking piece of the locking clip moves out from below the flange 4121 of the bracket And no longer in contact with the flange, the protrusion 42111 of the cantilever beam 4211 of the locking clip is also removed from the locking member 43, so that there is no elastic clamping force between the locking clip 42 and the bracket 41, thus locking The clip is separated from the bracket, and the locking clip assembly is in the unlocked position B at this moment, as shown in Figs. 4 and 7 .

Although the utility model has been described in detail above with reference to the preferred embodiments of the utility model, the utility model is not limited to the above-mentioned specific embodiments, but it should be understood that, without departing from the scope of the utility model defined in the claims, Various changes may be made and equivalents may be substituted for various elements thereof by those skilled in the art. Moreover, the combinations and collocations of technical features, elements and/or functions among various aspects herein are clear, so those skilled in the art can understand the technical features, elements and/or functions in the embodiments based on these disclosed contents. and/or functionality may optionally be combined into another aspect unless otherwise stated above. In addition, many changes may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope of the invention. Accordingly, the invention is not to be limited to the particular embodiments illustrated in the drawings and described in the specification as the best mode presently contemplated for carrying out this invention, but it is intended that the invention include All embodiments that fall within the scope of the foregoing description and appended claims.

Claims (16)

1. A locking clip assembly (4) for locking a circuit breaker (1) to a guide rail (2), wherein the guide rail is placed in a slot (4) on the housing of the circuit breaker, characterized in that the The locking clip assembly (4) consists of: a bracket (41) fixed to the housing of said circuit breaker; a locking clip (42), which is provided on the bracket and capable of locking the circuit breaker to the guide rail in the locked position (A) and unlocking the circuit breaker from the guide rail in the unlocked position ( B) to move between, Wherein said bracket (41) and locking clip (42) cooperate with each other, so that when said locking clip is in said locking position (A), said locking clip (42) can be locked to said bracket (41) . 2. The locking clip assembly according to claim 1, characterized in that, the bracket comprises a base (411) and two sides of the base along the locking direction (I1) or unlocking direction (I2) of the locking clip A boss (412) protruding perpendicularly to the base is provided with screw holes for fixing the bracket on the housing of the circuit breaker. 3. The locking clip assembly according to claim 2, wherein the bracket further comprises flanges respectively extending outward along the unlocking direction from the first ends of the two bosses away from the guide rail ( 4121) for locking the locking clip. 4. The locking clip assembly according to claim 3, characterized in that, a locking member (43) is arranged on the base (411) of the bracket, and the locking member protrudes from the surface of the base for locking clamp to apply elastic pressure. 5. The locking clip assembly according to claim 4, wherein the bracket further comprises a first groove (4111), which is provided on a portion of the base close to the flange, A locking piece (43) shaped to match said first groove is partially accommodated in said first groove so that it protrudes from the surface of said base for applying elasticity to the locking clip pressure. 6. The locking clip assembly of claim 5, wherein the locking member is in the form of a ring. 7. The locking clip assembly of claim 5, wherein the locking member is in the form of a pin. 8. A locking clip assembly according to claim 6 or 7, wherein the locking clip is retained between the two bosses, the locking clip comprising a plate-shaped locking clip body (421). 9. The locking clip assembly of claim 8, wherein the locking clip includes a bend from the locking clip body downwardly toward the base and then outwardly away from the locking clip substantially parallel to the locking clip. A locking piece (422) extending from the clip body, capable of contacting the flange below the flange when the locking clip is in the locked position. 10. The locking clip assembly according to claim 9, wherein the locking clip body further comprises a cantilever beam (4211) cut out from the locking clip body along the locking or unlocking direction, the cantilever beam having a direction The protrusion (42111) protruding from the base, when the locking clip is in the locked position, the locking member presses the protrusion in a direction away from the base so that the locking piece is also Squeeze the flange away from the base so that the locking clip is locked to the bracket. 11. The locking clip assembly according to claim 10, characterized in that, the cantilever beam (4211) extends from the locking clip body (421) toward the guide rail (2), and the protrusion is V-shaped or U-shaped. 12. The locking clip assembly of claim 10, wherein the cantilever beam (4211 ) extends from the locking clip body away from the rail, and the protrusion is spherical. 13. The locking clip assembly according to any one of claims 5-7, 9-12, wherein the bracket further comprises: a second groove (4112), the second groove intersects with a part of the first groove, and the depth of the second groove is greater than the depth of the first groove so as to enable the locking member to which produces elastic deformation; a third groove (4113), the third groove is arranged on the part of the base close to the guide rail; an opening (4114), which is provided on the end surface of the base close to the guide rail, and which communicates with the third groove; and A guide groove (4115), which is arranged on both sides of the third groove and is open on the side of the base facing the guide rail. 14. The locking clip assembly of claim 13, wherein the bracket further includes a bracket extending from an end of the base near the rail downwardly away from the base and generally parallel to the base ( 413), the pallet leans against the card slot (3), and the guide rail is placed on the pallet. 15. The locking clip assembly of claim 13, wherein the locking clip includes a first locking leg (423), a second locking leg (424) and a first locking leg (424) extending from the locking clip body toward the rail. third locking leg (425), Wherein, the end of the first locking leg is bent towards the base and then extends parallel to the main body of the locking clip so as to pass through the third groove and the opening to fix the circuit breaker to the guide, The second locking leg and the third locking leg are arranged symmetrically with respect to the first locking leg, and the ends of the second and third locking legs are bent toward the base relative to the second and third locking legs Then there is a bent portion extending toward the guide rail so that the ends of the second and third locking legs can be accommodated in corresponding guide grooves, so that the circuit breaker can be fixed to the guide rail. 16. The locking clip assembly according to any one of claims 5-7, 9-12, 14, wherein the bracket is made of plastic material, the locking member and the locking clip are made of Made of metal material.