Padlock accessory of circuit breaker and circuit breaker

Abstract

The padlock accessory of the circuit breaker comprises an accessory shell, a sliding block and a locking piece, the sliding block can be switched between an unlocking position and a padlock position, the locking piece is in linkage connection with the sliding block, the locking piece comprises a cantilever, and the cantilever is arranged opposite to a limiting side wall outside the accessory shell; when the locking piece drives the sliding block to move to the padlock position, the padlock hole in the sliding block is in a padlock state, and meanwhile a locking groove for locking the operation piece is formed between the cantilever and the limiting side wall. The circuit breaker comprises an operating piece and a padlock accessory, and when the circuit breaker is in an opening state, the operating piece is locked in a locking groove of the padlock accessory. According to the padlock accessory of the circuit breaker and the circuit breaker, the locking piece and the sliding block are integrated on the accessory shell, and the locking groove between the cantilever of the locking piece and the limiting side wall of the accessory shell can lock the operating piece of the circuit breaker at the opening position, so that electrical hidden dangers caused by false closing of the circuit breaker are prevented, and the use safety is improved; the locking structure of the padlock accessory is simple, and the locking operation is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the field of low-voltage electrical appliances, and particularly relates to a padlock accessory for a circuit breaker and a circuit breaker. Background Art

[0002] At present, plastic case circuit breakers with a height of 1U have been gradually applied in the market, but the supporting accessory products have not been launched yet, which is not enough to meet the usage requirements of products in various special scenarios. For example, the circuit breaker is prone to accidental closing after tripping, which will cause electrical hazards. Summary of the Invention

[0003] The purpose of the utility model is to overcome at least one defect of the prior art, and provide a padlock accessory for a circuit breaker and a circuit breaker.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The padlock accessory for a circuit breaker includes an accessory housing, a slider and a locking member installed in the accessory housing. The slider is movably arranged and can be switched between an unlocking position and a padlock position. The locking member is linked with the slider. The locking member includes a cantilever located outside the accessory housing, and the cantilever is arranged opposite to a limiting side wall outside the accessory housing;

[0006] When the locking member drives the slider to move to the padlock position, the padlock hole on the slider is in a state where a padlock can be hung, and at the same time, a locking groove for locking the operating member of the circuit breaker is formed between the cantilever and the limiting side wall.

[0007] Optionally, the locking member further includes a linkage part connected to the cantilever and used for being linked with the slider. An installation groove matched with the linkage part is arranged in the accessory housing, and the linkage part is movably arranged in the installation groove.

[0008] Optionally, the linkage part includes a linkage section and two connection sections connected in a U shape. The linkage section is perpendicular to the moving direction of the slider, and the connection sections are parallel to the moving direction of the slider. Each of the two connection sections is connected with a cantilever.

[0009] Optionally, the linkage part further includes two guiding sections. The connection sections are connected to the cantilever through the guiding sections. The two guiding sections are inclined towards each other along the direction in which the slider moves towards the unlocking position. A guiding block is arranged in the installation groove between the two guiding sections, and the guiding sections are in sliding fit with the guiding block.

[0010] Optionally, the cantilever includes a horizontal section, a first vertical section, an inclined section, and a second vertical section that are connected in sequence. The horizontal section extends into the accessory housing through a perforation in the accessory housing and is linked to the slider, and is parallel to the moving direction of the slider. The first vertical section and the second vertical section are parallel and perpendicular to the moving direction of the slider. The inclined section is inclined such that the first vertical section is away from the limiting side wall and the second vertical section is close to the limiting side wall; the limiting side wall has a first vertical surface opposite to the first vertical section, an inclined surface opposite to the inclined section, and a second vertical surface opposite to the second vertical section.

[0011] Optionally, the slider includes a sliding part and a padlock part that are connected. The padlock part is provided with a padlock hole. A chute is provided in the accessory housing, and the sliding part is slidably arranged in the chute; when the slider is in the padlock position, the padlock hole on the slider is aligned with the through hole of the accessory housing, so that the padlock hole is in a state where it can be padlocked. When a padlock is inserted into the padlock hole, the slider cannot move to the unlocking position; when the slider is in the unlocking position, the padlock hole on the slider is misaligned with the through hole.

[0012] Optionally, the sliding part is provided with a card slot, and the linkage section of the linkage part is snapped into the card slot.

[0013] Optionally, the sliding part and the padlock part are connected in a T shape.

[0014] Optionally, the accessory housing includes a mounting seat and a cover shell that are covered with each other; the mounting seat is provided with a barb, and the cover shell is provided with a card hole that is snap-fitted with the barb.

[0015] Optionally, a first limiting part for blocking the operating part from moving from the opening position to the closing position is provided in the locking groove.

[0016] A circuit breaker includes an operating part for driving the opening and closing of the circuit breaker and the padlock accessory according to any one of the above. When the circuit breaker is in the opening state, the operating part is locked in the locking groove of the padlock accessory.

[0017] Optionally, a positioning protrusion is provided on the limiting side wall of the padlock accessory, and a positioning groove that cooperates with the positioning protrusion is provided on the side of the operating part opposite to the limiting side wall.

[0018] Optionally, the moving directions of the locking part and the slider are perpendicular to the moving direction of the operating part, and the accessory housing of the padlock accessory and the circuit breaker housing are limited and matched in the moving direction of the operating part.

[0019] Optionally, the padlock accessory is provided with a first limiting part, and the operating part is provided with a second limiting part. The first limiting part and the second limiting part cooperate with each other to prevent the operating part from driving the circuit breaker to switch to the closing state.

[0020] The padlock attachment and circuit breaker of the present utility model have the locking member and the slider integrated on the attachment housing, and the locking groove between the cantilever of the locking member and the limiting side wall of the attachment housing can lock the operating member of the circuit breaker in the tripped position, preventing electrical hazards caused by accidental closing of the circuit breaker, improving the safety in use, and having a simple locking structure and convenient locking operation for the padlock attachment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the assembly drawing of the circuit breaker and the padlock attachment of the present utility model;

[0022] Figure 2 is the structural schematic diagram of the circuit breaker of the present utility model;

[0023] Figure 3 is the structural schematic diagram of the operating member of the present utility model;

[0024] Figure 4 is the perspective view of the padlock attachment of the present utility model;

[0025] Figure 5 is the view of the padlock attachment of the present utility model;

[0026] Figure 6 is the structural schematic diagram of the mounting base of the present utility model;

[0027] Figure 7 is the structural schematic diagram of the cover shell of the present utility model;

[0028] Figure 8 is the structural schematic diagram of the slider of the present utility model;

[0029] Figure 9 is the structural schematic diagram of the locking member of the present utility model.

[0030] Mounting base 1; perforation 11; mounting groove 12; guide block 13; chute 14; barb 15; cover shell 2; through hole 21; limiting side wall 22; first vertical surface 221; inclined surface 222; second vertical surface 223; positioning protrusion 23; card hole 24; slider 3; padlock hole 31; padlock part 32; sliding part 33; card slot 34; locking member 4; cantilever 41; horizontal section 411; first vertical section 412; inclined section 413; second vertical section 414; linkage part 42; linkage section 421; connecting section 422; guiding section 423; locking groove 5; circuit breaker housing 6; operating member 7; transverse part 71; longitudinal part 72; transition connection surface 73; positioning groove 74. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The following embodiments given in conjunction with the drawings further illustrate the specific embodiments of the padlock attachment and the circuit breaker of the present utility model. The padlock attachment and the circuit breaker of the present utility model are not limited to the descriptions of the following embodiments.

[0032] As Figure 1-2 shown, the circuit breaker of this embodiment includes a circuit breaker housing, an operating member 7 for driving the opening and closing of the circuit breaker, and a padlock attachment. The operating member 7 has an opening position and a closing position. When the operating member 7 is operated to the closing position, the circuit breaker switches to the closed state; when the operating member 7 is operated to the opening position, the circuit breaker switches to the open state. It should be noted that the opening and closing technology of the circuit breaker is prior art and will not be elaborated here.

[0033] As Figure 1 、 Figure 4 and Figure 5 shown, the padlock attachment of this embodiment includes an attachment housing, a slider 3 installed in the attachment housing, and a locking member 4. The slider 3 is movably arranged and can be switched between an unlocking position and a padlocking position. The locking member 4 is linked to the slider 3, and the movement of the locking member 4 can drive the slider 3 to move. The locking member 4 includes a cantilever 41 located outside the attachment housing, and the cantilever 41 is disposed opposite to the limiting side wall 22 outside the attachment housing; when the locking member 4 drives the slider 3 to move to the padlocking position, the padlock hole 31 on the slider 3 is in a state where a padlock can be inserted, and at the same time, a locking groove 5 for locking the operating member 7 of the circuit breaker can be formed between the cantilever 41 and the limiting side wall 22. In this embodiment, the moving direction of the operating member 7 is Figure 1 the up and down direction in Figure 1 , the operating member 7 moves upward to the closing position, and the operating member 7 moves upward to the opening position; the moving directions of the locking member 4 and the slider 3 are perpendicular to the moving direction of the operating member 7 and are the left and right directions in

[0034] Figure 1 , the slider 3 moves leftward to the unlocking position, and the slider 3 moves rightward to the padlocking position. The attachment housing of the padlock attachment is in limit fit with the circuit breaker housing 6 in the moving direction of the operating member 7; during use, the attachment housing is placed on the circuit breaker housing 6, and the circuit breaker housing 6 has a lower limit effect on the attachment housing. When the padlock attachment locks the operating member 7, pressing down the operating member 7, since the circuit breaker housing 6 abuts against the attachment housing and the attachment housing cannot move downward, the operating member 7 cannot be pressed down. Figure 1 Figure 4 and Figure 5The padlock position shown enables the padlock hole 31 on the slider 3 to be in a state where a padlock can be inserted. By inserting a padlock into the padlock hole 31, the slider 3 cannot move to the unlocking position, and the locking member 4 cannot move either, thereby locking the operating member 7 in the open position. In this embodiment, the operating member 7 is locked in the open position by the padlock attachment and cannot move to the closed position. Of course, as other applications, it can also be that the operating member 7 is locked in the closed position by the padlock attachment and cannot move to the open position.

[0035] In the padlock attachment and circuit breaker of this embodiment, the locking member 4 and the slider 3 are integrated on the attachment housing, and the locking groove 5 between the cantilever 41 of the locking member 4 and the limiting side wall 22 of the attachment housing can lock the operating member of the circuit breaker in the open position, preventing electrical hazards caused by accidental closing of the circuit breaker, improving the safety of use, and the locking structure of the padlock attachment is simple and the locking operation is convenient.

[0036] As Figure 4-Figure 7 shown, the attachment housing of this embodiment includes a mounting base 1 and a cover shell 2 that are covered with each other. The mounting base 1 is provided with a through hole 11, a mounting groove 12, and a sliding groove 14. The cover shell 2 is provided with a receiving groove and a through hole 21 corresponding to the padlock hole 31. The mounting base 1 is provided with a barb 15, and the cover shell 2 is provided with a clamping hole 24 that is clamped and matched with the barb 15. The barb 15 is inserted into the clamping hole 24 to realize the fixed connection between the mounting base 1 and the cover shell 2. Of course, other fixed connection methods such as screw fixation can also be used between the mounting base 1 and the cover shell 2.

[0037] As Figure 4-Figure 5 shown, the limiting side wall 22 is arranged on the outer side of the cover shell 2 of the attachment housing. The limiting side wall 22 is provided with a positioning protrusion 23. A positioning groove 74 that cooperates with the positioning protrusion 23 is provided on the side of the operating member 7 opposite to the limiting side wall 22. The cooperation between the positioning protrusion 23 and the positioning groove 74 plays a positioning role, enabling the padlock attachment to be quickly and accurately positioned at the use position.

[0038] As Figure 8 shown, the slider 3 is an integrally formed structure, including a sliding portion 33 and a padlock portion 32 that are connected. The sliding portion 33 is slidably arranged in the sliding groove 14 of the mounting base 1. The sliding groove 14 has two opposite side walls, which cooperate with the sliding portion 33 to resist and position the unlocking position and padlock position of the slider 3. The padlock portion 32 is provided with a padlock hole 31, and the padlock portion 32 is placed in the receiving groove of the cover shell 2. The sliding portion 33 and the padlock portion 32 are connected in a T shape. Correspondingly, as Figure 7 shown, the cover shell 2 is a T-shaped shell structure. As Figure 4As shown, when the slider 3 is in the padlock position, the padlock hole 31 on the slider 3 is aligned with the through hole 21, so that the padlock hole 31 is in a state where a padlock can be installed; when the slider 3 is in the unlocked position, the padlock hole 31 on the slider 3 is misaligned with the through hole 21, so that the padlock hole 31 is blocked by the cover 2 and is in a state where a padlock cannot be installed.

[0039] As Figure 9 shown, the locking member 4 of this embodiment is an integrally formed circular rib bending structure, and further includes a linkage portion 42 connected to the cantilever 41 and used for linkage connection with the slider 3. The installation groove 12 ( Figure 6 ) in the mounting seat 1 of the accessory housing cooperates with the linkage portion 42, and the linkage portion 42 is movably arranged in the installation groove 12. The linkage portion 42 includes a linkage section 421 and two connection sections 422 connected in a U shape. The linkage section 421 is perpendicular to the moving direction of the slider 3, and the connection section 422 is parallel to the moving direction of the slider 3. Each of the two connection sections 422 is connected with a cantilever 41. A locking groove 5 for locking the operating member 7 is formed between the two cantilevers 41 and the limiting side wall 22, with a simple structure and more stable and reliable locking.

[0040] Preferably, the sliding groove 14 of the mounting seat 1 is arranged on the bottom wall of the installation groove 12. A clamping groove 34 is provided at the bottom end of the sliding portion 33. The linkage portion 42 is placed on the bottom wall of the installation groove 12, and the linkage section 421 of the linkage portion 42 is clamped into the clamping groove 34 to realize the linkage connection between the locking member 4 and the slider 3. The linkage structure between the locking member 4 and the slider 3 is simple and reliable, facilitating the assembly of the locking member 4 and the slider 3. Of course, as other embodiments, the locking member 4 can also be a block structure integrally connected with the slider 3 or other structures.

[0041] Further, the linkage portion 42 further includes two guiding sections 423. The connection section 422 is connected to the cantilever 41 through the guiding section 423. The two guiding sections 423 are inclined towards each other along the direction in which the slider 3 moves towards the unlocked position. A guiding block 13 ( Figure 6 ) is provided in the installation groove 12 between the two guiding sections 423, and the guiding section 423 is in sliding cooperation with the guiding block 13. The cooperation between the guiding section 423 and the guiding block 13 guides the movement of the locking member 4 to prevent the locking member 4 from shifting.

[0042] The padlock accessory is provided with a first limiting portion for blocking the operating member 7 from moving from the opening position to the closing position. The first limiting portion is located in the locking groove 5. The operating member 7 is provided with a second limiting portion. The first limiting portion and the second limiting portion cooperate to prevent the operating member 7 from driving the circuit breaker to switch to the closing state. In a specific embodiment, as Figure 3As shown in the figure, the operating member 7 of this embodiment includes a transverse portion 71 and a longitudinal portion 72. One end of the longitudinal portion 72 is movably arranged inside the circuit breaker housing 6, and the other end extends out of the circuit breaker housing 6 and is connected to the transverse portion 71 in a T shape. Inclined transition connection surfaces 73 are provided at the connections between the two ends of the transverse portion 71 and the longitudinal portion 72. Correspondingly, as Figure 5 shown, the cantilever 41 of this embodiment includes a horizontal section 411, a first vertical section 412, an inclined section 413, and a second vertical section 414 connected in sequence. The horizontal section 411 extends into the accessory housing through the perforation 11 of the accessory housing and is connected to the guiding section 423 of the linkage portion 42, so that the cantilever 41 is linked and connected to the slider 3 through the linkage portion 42. The horizontal section 411 is parallel to the moving direction of the slider 3. The first vertical section 412 and the second vertical section 414 are parallel to each other, perpendicular to the moving direction of the slider 3, and perpendicular to the linkage section 421. The inclined section 413 is inclined so that the first vertical section 412 is away from the limiting side wall 22 and the second vertical section 414 is close to the limiting side wall 22. The limiting side wall 22 of this embodiment has a first vertical surface 221 opposite to the first vertical section 412, an inclined surface 222 opposite to the inclined section 413, and a second vertical surface 223 opposite to the second vertical section 414. As Figure 1 shown, the horizontal section 411 of the cantilever 41 abuts against the top end of the transverse portion 71 of the operating member 7 to play an upper limiting role on the operating member 7. The first vertical section 412 of the cantilever 41 and the first vertical surface 221 of the limiting side wall 22 respectively abut against both sides of the transverse portion 71 of the operating member 7. The second vertical section 414 of the cantilever 41 and the second vertical surface 223 of the limiting side wall 22 respectively abut against both sides of the longitudinal portion 72 of the operating member 7 to play a left and right limiting role on the operating member 7. In this embodiment, the first limiting portion of the padlock accessory includes the inclined section 413 of the cantilever 41 and the inclined surface 222 of the limiting side wall 22. The second limiting portion of the operating member 7 is two transition connection surfaces 73. The inclined section 413 of the cantilever 41 and the inclined surface 222 of the limiting side wall 22 respectively abut against the two transition connection surfaces 73 of the operating member 7 to play a lower limiting role on the operating member 7, so that the operating member 7 cannot be pressed downwards, and thus the circuit breaker cannot be closed. As other embodiments, the first limiting portion may also be a convex structure / groove structure provided on the cantilever 41 and / or the limiting side wall 22, and the second limiting portion is a groove structure / convex structure provided on the operating member 7.

[0043] It should be noted that in the description of the present utility model, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which it is habitually placed during use. It is only for the convenience of description and does not indicate that the device or component referred to must have a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating relative importance.

[0044] The above content is a further detailed description of the present utility model in combination with specific preferred embodiments. It cannot be determined that the specific implementation of the present utility model is only limited to these descriptions. For those of ordinary skill in the technical field to which the present utility model belongs, without departing from the concept of the present utility model, several simple deductions or substitutions can be made, and all should be regarded as belonging to the protection scope of the present utility model.

Claims

1. A padlock accessory for a circuit breaker, characterized in that: The invention comprises an accessory housing, a slider (3) installed in the accessory housing, and a locking member (4); the slider (3) is movably arranged to switch between an unlocked position and a padlocked position; the locking member (4) is linked to the slider (3); the locking member (4) comprises a cantilever (41) located outside the accessory housing; the cantilever (41) is arranged opposite to a limiting side wall (22) outside the accessory housing; When the locking member (4) drives the slider (3) to move to the padlock position, the padlock hole (31) on the slider (3) is in a padlockable state, and a locking groove (5) for locking the operating member (7) of the circuit breaker is formed between the cantilever (41) and the limiting side wall (22).

2. The padlock accessory for a circuit breaker according to claim 1, characterized in that: The locking member (4) further comprises a linkage portion (42) connected to the cantilever (41) and used for linkage connection with the slider (3); a mounting groove (12) cooperating with the linkage portion (42) is provided in the accessory housing; and the linkage portion (42) is movably arranged in the mounting groove (12).

3. The padlock accessory for a circuit breaker according to claim 2, characterized in that: The linkage portion (42) comprises a linkage section (421) and two connecting sections (422) connected in a U shape, the linkage section (421) being perpendicular to the moving direction of the slider (3), the connecting section (422) being parallel to the moving direction of the slider (3), and the two connecting sections (422) being respectively connected to a cantilever (41).

4. The padlock accessory for a circuit breaker according to claim 3, characterized in that: The linkage portion (42) further comprises two guide sections (423), the connection section (422) being connected to the cantilever (41) via the guide sections (423), the two guide sections (423) being arranged in an inclined manner towards each other along the direction in which the slider (3) moves towards the unlocking position, a guide block (13) being arranged in the mounting groove (12) and being located between the two guide sections (423), the guide section (423) being slidably matched with the guide block (13).

5. The padlock accessory for a circuit breaker according to any one of claims 1 to 4, characterized in that: The cantilever (41) comprises a horizontal section (411), a first vertical section (412), an inclined section (413) and a second vertical section (414) which are connected in sequence. The horizontal section (411) extends from a through hole (11) of the accessory shell into the accessory shell and is linked to the slider (3) and is parallel to the moving direction of the slider (3). The first vertical section (412) is parallel to the second vertical section (414) and is perpendicular to the moving direction of the slider (3). The inclined section (413) is inclined so that the first vertical section (412) is away from the limiting side wall (22) and the second vertical section (414) is close to the limiting side wall (22). The limiting side wall (22) has a first vertical surface (221) opposite to the first vertical section (412), an inclined surface (222) opposite to the inclined section (413), and a second vertical surface (223) opposite to the second vertical section (414).

6. The padlock accessory for a circuit breaker according to any one of claims 2 to 4, characterized in that: The slider (3) comprises a sliding portion (33) and a padlock portion (32) connected to each other; the padlock portion (32) is provided with a padlock hole (31); a slide groove (14) is provided in the accessory housing; the sliding portion (33) is slidably arranged in the slide groove (14); when the slider (3) is in a padlock position, the padlock hole (31) on the slider (3) is aligned with the through hole (21) of the accessory housing, so that the padlock hole (31) is in a padlockable state; when the slider (3) is padlocked in the padlock hole (31), the slider (3) cannot move to an unlocking position; when the slider (3) is in the unlocking position, the padlock hole (31) on the slider (3) is misaligned with the through hole (21).

7. The padlock accessory for a circuit breaker according to claim 6, characterized in that: The sliding portion (33) is provided with a slot (34), and the linkage section (421) of the linkage portion (42) is inserted into the slot (34).

8. The padlock accessory for a circuit breaker according to claim 6, characterized in that: The sliding part (33) is connected to the padlock part (32) in a T-shape.

9. The padlock accessory for a circuit breaker according to claim 1, characterized in that: The accessory housing comprises a mounting seat (1) and a cover shell (2) which cover each other; the mounting seat (1) is provided with a barb (15), and the cover shell (2) is provided with a clamping hole (24) which is clamped with the barb (15).

10. The padlock accessory for a circuit breaker according to claim 1, characterized in that: A first limiting portion is provided in the locking groove (5) for blocking the operating member (7) from moving from the opening position to the closing position.

11. A circuit breaker, characterized in that: It comprises an operating member (7) for driving the opening and closing of a circuit breaker and a padlock accessory as claimed in any one of claims 1 to 10, wherein the operating member (7) is locked in a locking groove (5) of the padlock accessory when the circuit breaker is in an opening state.

12. The circuit breaker according to claim 11, characterized in that: A positioning protrusion (23) is provided on the limiting side wall (22) of the padlock accessory, and a positioning groove (74) cooperating with the positioning protrusion (23) is provided on the side of the operating member (7) opposite to the limiting side wall (22).

13. The circuit breaker according to claim 11, characterized in that: The moving directions of the locking member (4) and the sliding block (3) are perpendicular to the moving direction of the operating member (7), and the accessory housing of the padlock accessory cooperates with the circuit breaker housing (6) in the upper limit position in the moving direction of the operating member (7).

14. The circuit breaker according to claim 11, characterized in that: The padlock accessory is provided with a first limiting portion, and the operating member (7) is provided with a second limiting portion, and the first limiting portion cooperates with the second limiting portion so that the operating member (7) cannot drive the circuit breaker to switch to a closed state.

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