Circuit breaker with locking structure

Abstract

The utility model discloses a circuit breaker with a locking structure. The circuit breaker is characterized in that a body is provided with an accommodating cavity; the locking piece is provided with a first locking part and a second locking part; the locking piece rotates relative to the body; the tripping mechanism comprises a tripping piece; the sliding block mechanism drives the contact assembly to perform opening and closing operation; the operating panel forms a first position and a second position, and one side, close to the locking piece, of the operating panel is provided with an abutting part; in the first state, the first locking part abuts against the tripping piece, and the second locking part is matched with the sliding block mechanism to limit sliding of the sliding block mechanism. In the second state, the locking piece is rotated, the first locking part is separated from the tripping piece, and the second locking part relieves the limitation of the sliding block mechanism; in the first state, when the operation plate is located at the first position, the second locking part abuts against the inner side of the abutting part. In the first state, when the operation plate is located at the second position, the second locking part abuts against the outer side of the abutting part. The structure is simple, a locking effect can be formed among a plurality of mechanisms, and the safety and the applicability are improved.

Description

Technical Field

[0001] The utility model specifically relates to a circuit breaker with a locking structure. Background Art

[0002] With the development of intelligent circuit breakers, many circuit breakers have two operation modes: manual and automatic. In order to prevent misoperation in the open state, the circuit breaker is provided with a locking structure, which is respectively locked with the tripping mechanism and the slider controlling the opening and closing of the circuit breaker.

[0003] However, in the prior art, the operating panel for controlling the automatic operation is not locked, and the operator cannot know whether it is locked after manual operation or automatic operation, which interferes with the operator and leads to poor safety and applicability. Utility Model Content

[0004] The main technical problem solved by the utility model is to provide a circuit breaker with a locking structure.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a circuit breaker with a locking structure, which includes:

[0006] A main body, wherein the main body is provided with a receiving cavity;

[0007] A locking member, which is accommodated in the accommodating cavity and is provided with a first locking portion and a second locking portion; the locking member rotates relative to the body;

[0008] A tripping mechanism, the tripping mechanism comprising a tripping member;

[0009] A slider mechanism, which is slidably arranged relative to the body, and drives the contact assembly to perform opening and closing operations;

[0010] An operating panel is accommodated in the accommodating cavity, the operating panel is slidably arranged relative to the body, the operating panel forms a first position and a second position, and a resisting portion is arranged on a side of the operating panel close to the locking member;

[0011] In the first state, the first locking portion abuts against the release member, and the second locking portion cooperates with the slider mechanism to limit the sliding of the slider mechanism;

[0012] In the second state, the locking member is rotated, the first locking portion is separated from the release member, and the second locking portion releases the restriction of the slider mechanism;

[0013] In the first state, when the operating plate is located at the first position, the second locking portion abuts against the inner side of the abutting portion; in the first state, when the operating plate is located at the second position, the second locking portion abuts against the outer side of the abutting portion.

[0014] With this structural arrangement, in the first state, the locking of the detaching member and the locking of the slider mechanism are formed. At this time, when the operation plate is in the first position, that is, the manual position, due to the limitation of the second locking portion, the operation plate cannot move at this time; when the operation plate is in the second position, that is, the automatic position, due to the limitation of the second locking portion, the operation plate still cannot move. In the second state, it is the unlocking state, and at this time, the operation plate, the detaching member, and the slider mechanism can all move freely. This structure is simple and can form a locking effect among multiple mechanisms, improving safety and applicability.

[0015] Among them, the second locking portion is provided with a convex block. In the first state, when the operation plate is in the first position, one side of the convex block abuts against the inner side of the abutting portion; when the operation plate is in the second position, the other side of the convex block abuts against the outer side of the abutting portion.

[0016] The setting of the convex block enables the locking member to abut against the abutting portion at different positions when rotating, improving the limiting effect.

[0017] Among them, it further includes a limiting structure. The limiting structure includes a limiting member and a reset member. The limiting member moves vertically up and down relative to the main body. The limiting member is provided with a limiting portion, and the movement track of the limiting portion intersects with the movement track of the slider mechanism. In the first state, the top surface of the limiting member abuts against the bottom surface of the second locking portion; in the second state, the top surface of the limiting member is located on the movement track of the first locking portion; the reset member gives the limiting member a reset force.

[0018] The setting of the limiting structure forms a limiting effect in the first state to prevent the slider mechanism from moving. In the second state, the first locking portion rotates, driving the limiting member to move downward, thereby releasing the locking of the slider mechanism and enabling the slider mechanism to slide.

[0019] Among them, the main body is provided with a partition plate. The limiting member is sleeved on the partition plate and moves up and down relative to the partition plate; a hook is provided at the lower end of the limiting member, and the hook passes through the bottom surface of the main body and cooperates with the bottom surface of the main body.

[0020] The setting of the partition plate forms a guiding effect, and the setting of the hook forms a limiting effect to prevent the limiting member from moving excessively.

[0021] Among them, it further includes a first microswitch, and the first microswitch is located on the movement track of the first locking portion.

[0022] The first microswitch cooperates with the first locking portion to form a signal transmission effect, which can indicate that it is in the locked state at this time.

[0023] Among them, it further includes a locking assembly. The locking member is part of the locking assembly. The locking assembly further includes a driving member and a lock sleeve; the lock sleeve is fixedly connected to the main body, and the driving member passes through the lock sleeve and is linked with the locking member.

[0024] The setting of the lock sleeve enables better installation and fixation of the overall positioning component. Then, through the linkage between the driving part and the locking part, the condition of rotation is satisfied.

[0025] Among them, the locking component further includes a gasket and a nut, and the gasket is located between the lock sleeve and the nut.

[0026] The setting of the gasket improves the fixing effect of the lock sleeve.

[0027] Among them, the driving part is provided with a driving portion, and the driving portion is in the shape of a groove or a convex column.

[0028] The setting of the driving portion enables the operator to use different tools according to different structures to achieve the driving effect of the driving part.

[0029] Among them, it further includes a second microswitch. The body is provided with a first through hole, the operation board is provided with a convex portion and a second through hole. In the first position, the first through hole and the second through hole are coaxially arranged; in the second position, the convex portion abuts against the second microswitch.

[0030] The second microswitch cooperates with the convex portion to form a signal control effect. In the second position, that is, the automatic position is formed to achieve an automated operation. The first through hole and the second through hole cooperate. At this time, the handle or the operating rod can pass through the first through hole and the second through hole to achieve the effect of manual driving.

[0031] Among them, the operation board is provided with a gear protrusion, and the body is provided with two gear grooves, and the gear protrusion switches between the two gear grooves.

[0032] The setting of the gear protrusion forms a gear limiting effect.

[0033] Among them, one of the operation board and the body is provided with a guiding groove, and the other of the operation board and the body is provided with a guiding post that cooperates with the guiding groove.

[0034] The cooperation of the guiding groove and the guiding post forms a guiding effect, making the sliding of the operation board more stable. Description of the Drawings

[0035] Figure 1 is a schematic structural diagram of Embodiment 1 of the present utility model;

[0036] Figure 2 is a cross-sectional view of Embodiment 1 of the present utility model;

[0037] Figure 3 is a cross-sectional view of Embodiment 1 of the present utility model;

[0038] Figure 4 is a partial structural schematic diagram of Embodiment 1 of the present utility model;

[0039] Figure 5It is a partial structural schematic diagram of Example 1 of the utility model;

[0040] Figure 6 This is a schematic diagram of the structure of the upper cover and the operating panel in Embodiment 1 of the utility model;

[0041] Figure 7 It is a schematic structural diagram of the locking member in Example 1 of the utility model. DETAILED DESCRIPTION

[0042] Embodiment 1:

[0043] A circuit breaker with a locking structure, as shown in the attached Figures 1-7 As shown, including:

[0044] The body 11 is provided with a receiving cavity 111. In this embodiment, the body 11 includes an upper cover 12 and a base 13, and the upper cover 12 and the base 13 cooperate to form the receiving cavity 111. In addition, it should be noted that a contact assembly is also provided below the base 13, and the contact assembly forms a switch-on and switch-off effect, which is irrelevant to this embodiment and will not be described in detail.

[0045] The locking member 14 is accommodated in the accommodating cavity 111. The locking member 14 is provided with a first locking portion 141 and a second locking portion 142. The first locking portion 141 and the second locking portion 142 are respectively provided on the side wall of the locking member 14. The first locking portion 141 and the second locking portion 142 extend outwardly along the radial direction of the locking member 14. The locking member 14 rotates relative to the body 11, that is, the locking member 14 is rotatably arranged.

[0046] The release mechanism includes a release member 15. The release member 15 moves vertically downward. The release member 15 can pass through the base 13 and cooperate with the lower mechanism to form a linkage relationship.

[0047] The slider mechanism 16 is slidably arranged relative to the body 11, and the slider mechanism 16 drives the contact assembly to perform opening and closing operations. The base 13 is provided with a lower opening, and the slider mechanism 16 is linked with the mechanism at the lower end through the lower opening to achieve an opening and closing operation effect.

[0048] The operating plate 17 is accommodated in the accommodating cavity 111 . The operating plate 17 is slidably disposed relative to the body 11 . The operating plate 17 forms a first position and a second position. A resisting portion 171 is disposed on one side of the operating plate 17 close to the locking member 14 .

[0049] In the first state, the first locking portion 141 abuts against the tripping member 15, and the second locking portion 142 cooperates with the slider mechanism 16 to restrict the sliding of the slider mechanism 16. In this embodiment, the first state specifically refers to the locking in the open state.

[0050] In the second state, the rotation locking member 14 is rotated, the first locking portion 141 is separated from the unlocking member 15, and the second locking portion 142 releases the restriction on the slider mechanism 16. The second state is the unlocked state. At this time, the unlocking member 15 and the slider mechanism 16 can both move freely, and the opening and closing operations can be performed.

[0051] In the first state, when the operation plate 17 is in the first position, this is the opening state achieved by manual operation. By rotating the locking member 14, the second locking portion 142 abuts against the inner side of the abutting portion 171, achieving the locking effect in the manual position. At this time, the operation plate 17, the unlocking member 15, and the slider mechanism 16 cannot be operated. In the first state, when the operation plate 17 is in the second position, this is the opening state achieved by automatic operation. By rotating the locking member 14, the second locking portion 142 abuts against the outer side of the abutting portion 171, achieving the locking effect in the automatic position. At this time, the operation plate 17, the unlocking member 15, and the slider mechanism 16 cannot be operated. With this structural arrangement, in the first state, the locking of the unlocking member 15 and the locking of the slider mechanism 16 are formed. At this time, when the operation plate 17 is in the first position, that is, the manual position, due to the restriction of the second locking portion 142, the operation plate 17 cannot move; when the operation plate 17 is in the second position, that is, the automatic position, due to the restriction of the second locking portion 142, the operation plate 17 also cannot move. The second state is the unlocked state. At this time, the operation plate 17, the unlocking member 15, and the slider mechanism 16 can all move freely. This structure is simple, can form a locking effect between multiple mechanisms, and improves safety and applicability.

[0052] Specifically, as shown in the appendix Figures 1-7 As shown, the second locking portion 142 is provided with a convex block 1421. In the first state, when the operation plate 17 is in the first position, one side of the convex block 1421 abuts against the inner side of the abutting portion 171; when the operation plate 17 is in the second position, the other side of the convex block 1421 abuts against the outer side of the abutting portion 171. The setting of the convex block 1421 enables the locking member 14 to abut against the abutting portion 171 at different positions when rotated, improving the limiting effect. In this embodiment, the convex block 1421 extends upward and is in a protruding shape. The abutting portion 171 is at the edge position on one side of the operation plate 17 and extends downward, so that the inner side of the abutting portion 171 and the operation plate 17 form a bent structure as a whole, thus achieving the effect of abutting on both sides. In addition, other methods can also be used to form the cooperation effect between the abutting portion 171 and the second locking portion 142. For example, the second locking portion 142 is provided with two grooves cooperating with the operation plate 17.

[0053] Specifically, as shown in the appendix Figure 5As shown, it further includes a limiting structure, which includes a limiting member 18 and a reset member 19. The limiting member 18 moves vertically up and down relative to the body 11. The limiting member 18 is provided with a limiting portion 181, and the movement trajectory of the limiting portion 181 intersects with the movement trajectory of the slider mechanism 16. In this embodiment, specifically, in the first state, the top surface of the limiting member 18 abuts against the bottom surface of the second locking portion 142. At this time, the limiting portion 181 is located on the movement trajectory of the slider mechanism 16, and the limiting portion 181 restricts the sliding of the slider mechanism 16, so that the slider mechanism 16 cannot operate. It should be noted that the first state is the open state. In the second state, the top surface of the limiting member 18 is located on the movement trajectory of the first locking portion 141. The second state is the unlocked state. The second locking portion 142 is removed from the top surface of the limiting member 18, and then the first locking portion 141 rotates to cooperate with the top surface of the limiting member 18, causing the limiting member 18 to move downward, thereby releasing the locking of the slider mechanism 16, so that the slider mechanism 16 can slide. In this embodiment, the top surface of the limiting member 18 is a combination of a plane and two inclined surfaces. The two inclined surfaces are symmetrically arranged, and the two inclined surfaces are respectively connected to both ends of the plane. In the first state, the second locking portion 142 abuts against the plane. In the second state, the first locking portion 141 rotates and abuts against the adjacent inclined surface. Due to the chamfering effect, the limiting member 18 will move downward. Continue to rotate until the first locking portion 141 abuts against the plane, forming an unlocking. At this time, the limiting portion 181 releases the limit locking with the slider mechanism 16, and the slider mechanism 16 can slide normally. The reset member 19 gives the limiting member 18 a reset force. In this embodiment, one end of the reset member 19 abuts against the limiting member 18, and the other end of the reset member 19 abuts against the bottom surface of the base 13, forming an energy storage and fixing effect. Under the action of the reset member 19, the limiting member 18 moves vertically upward in the initial state. When the limiting member 18 is subjected to a downward pressure, the reset member 19 starts to store energy. When the force on the limiting member 18 disappears, the reset force of the reset member 19 causes the limiting member 18 to move vertically upward quickly. The number of the reset members 19 here can be one or multiple. In this embodiment, the reset member 19 can be a spring. Further, a cavity cooperating with the reset member 19 can also be provided on the bottom surface of the base 13, making it more convenient to fix the reset member 19.

[0054] Specifically, as shown in the appendix Figures 1-7As shown, the body 11 is provided with a partition 112, and here the partition 112 is specifically located on the base 13. The limiting member 18 is sleeved on the partition 112 and moves up and down relative to the partition 112. Specifically, the limiting member 18 is of an arched structure, with a groove in the middle, so that the partition 112 is embedded in the groove to form a relative movement effect. A hook 182 is provided at the lower end of the limiting member 18, and the hook 182 passes through the bottom surface of the body 11 and cooperates with the bottom surface of the body 11. Here, the hook 182 specifically passes through the bottom surface of the base 13 to form a limiting effect on the limiting member 18 to prevent the limiting member 18 from moving excessively. In the first state, the hook 182 abuts against the bottom surface of the base 13, and the limiting member 18 moves to the highest position. In the second state, the first locking portion 141 abuts against the limiting member 18, driving the limiting member 18 to move vertically downward. At this time, the hook 182 also moves vertically downward synchronously. When the force applied by the first locking portion 141 on the limiting member 18 disappears, under the action of the reset member 19, the limiting member 18 quickly resets. However, due to the cooperation between the hook 182 and the base 13, the limiting member 18 can only move a corresponding distance at this time.

[0055] Specifically, it further includes a first microswitch 20, and the first microswitch 20 is located on the movement track of the first locking portion 141. The first microswitch 20 cooperates with the first locking portion 141 to form a signal transmission effect, which can indicate the locked state at this time. Here, the first microswitch 20 is located on one side of the detaching member 15.

[0056] Specifically, the slider mechanism 16 includes a slider 161 and a slide rail 162, and the slider 161 slides along the slide rail 162. The limiting portion 181 cooperates with the slider 161.

[0057] Specifically, as shown in the appendix Figures 3-4 As shown, it further includes a locking assembly. The locking member 14 is part of the locking assembly. The locking assembly further includes a driving member 21 and a lock sleeve 22. The lock sleeve 22 is fixedly connected to the body 11. The lock sleeve 22 has a cavity that penetrates up and down. The locking member 14 is sleeved at the lower end of the lock sleeve 22. The driving member 21 is accommodated in the lock sleeve 22. The driving member 21 passes through the lock sleeve 22 and is linked with the locking member 14. Here, the linkage method is threaded connection or bolt connection, etc. Simply put, the lock sleeve 22 is stationary. When the driving member 21 rotates, the locking member 14 also rotates accordingly. The setting of the lock sleeve 22 better realizes the overall installation and fixation of the positioning assembly, and then through the linkage between the driving member 21 and the locking member 14, the rotation condition is satisfied.

[0058] Specifically, as shown in the appendix Figures 3-4As shown, the locking assembly further includes a gasket 23 and a nut 24. The gasket 23 is located between the lock sleeve 22 and the nut 24. The lock sleeve 22 is provided with an external thread, and the upper end of the lock sleeve 22 is stepped. The gasket 23 is sleeved on the lock sleeve 22, and the gasket 23 abuts against the stepped portion of the lock sleeve 22. At this time, the gasket 23 also abuts against the inner wall of the upper cover 12. The nut 24 is threadedly connected to the lock sleeve 22. Through the nut 24 and the gasket 23, the lock sleeve 22 is firmly connected and fixed to the upper cover 12.

[0059] Specifically, the driving member 21 is provided with a driving portion 211, and the driving portion 211 is in the shape of a groove or a convex column. The setting of the driving portion 211 enables the operator to use different tools according to different structures to achieve the driving effect of the driving member 21. When the driving portion 211 is a groove, it can be a circular groove, a square groove, a regular hexagonal groove, a triangular groove, a slotted groove, etc. When the driving portion 211 is in the shape of a convex column, it can be a regular triangular prism, a cuboid, a regular pentagonal prism, a regular hexagonal prism, etc.

[0060] Specifically, as shown in the appendix Figures 1-7 As shown, it further includes a second microswitch 25. The main body 11 is provided with a first through hole 113, the operation panel 17 is provided with a convex portion 172 and a second through hole 173. In the first position, the first through hole 113 and the second through hole 173 are coaxially arranged; in the second position, the convex portion 172 abuts against the second microswitch 25. The second microswitch 25 cooperates with the convex portion 172 to form a signal control effect. In the second position, that is, the automatic position is formed to achieve an automated operation. The first through hole 113 and the second through hole 173 cooperate. At this time, the handle or the operating rod can pass through the first through hole 113 and the second through hole 173 to achieve the effect of manual driving.

[0061] Specifically, the operation panel 17 is provided with a gear protrusion 174, and the main body 11 is provided with two gear grooves 114. The gear protrusion 174 switches between the two gear grooves 114. The setting of the gear protrusion 174 forms a gear limiting effect. One gear groove 114 corresponds to one position, that is, it corresponds to the manual position and the automatic position.

[0062] Specifically, one of the operation panel 17 and the main body 11 is provided with a guide groove 175, and the other of the operation panel 17 and the main body 11 is provided with a guide post 115 that cooperates with the guide groove 175. The cooperation between the guide groove 175 and the guide post 115 forms a guiding effect, making the sliding of the operation panel 17 more stable. In this embodiment, the guide groove 175 is provided on the operation panel 17, and the upper cover 12 is provided with a guide post 115.

[0063] Specifically, a lead seal structure can also be provided between the operation panel 17 and the upper cover 12, that is, the operation panel 17 is provided with a lead seal hole, and the upper cover 12 is provided with a lead seal hole.

Claims

1. A circuit breaker with a locking structure, characterized in that: include: A main body, wherein the main body is provided with a receiving cavity; A locking member, which is accommodated in the accommodating cavity and is provided with a first locking portion and a second locking portion; the locking member rotates relative to the body; A tripping mechanism, the tripping mechanism comprising a tripping member; A slider mechanism, which is slidably arranged relative to the body, and drives the contact assembly to perform opening and closing operations; An operating panel is accommodated in the accommodating cavity, the operating panel is slidably arranged relative to the body, the operating panel forms a first position and a second position, and a resisting portion is arranged on a side of the operating panel close to the locking member; In the first state, the first locking portion abuts against the release member, and the second locking portion cooperates with the slider mechanism to limit the sliding of the slider mechanism; In the second state, the locking member is rotated, the first locking portion is separated from the release member, and the second locking portion releases the restriction of the slider mechanism; In the first state, when the operating plate is located at the first position, the second locking portion abuts against the inner side of the abutting portion; in the first state, when the operating plate is located at the second position, the second locking portion abuts against the outer side of the abutting portion.

2. A circuit breaker with a locking structure as claimed in claim 1, characterized in that: The second locking portion is provided with a protrusion. In the first state, when the operating plate is at the first position, one side of the protrusion abuts against the inner side of the abutment portion; when the operating plate is at the second position, the other side of the protrusion abuts against the outer side of the abutment portion.

3. A circuit breaker with a locking structure as claimed in claim 1, characterized in that: It also includes a limiting structure, which includes a limiting member and a resetting member. The limiting member moves vertically up and down relative to the main body. The limiting member is provided with a limiting portion. The movement trajectory of the limiting portion intersects with the movement trajectory of the slider mechanism. In the first state, the top surface of the limiting member is against the bottom surface of the second locking portion; in the second state, the top surface of the limiting member is located on the movement trajectory of the first locking portion, and the resetting member provides a resetting force to the limiting member.

4. A circuit breaker with a locking structure as claimed in claim 3, characterized in that: The main body is provided with a partition, and the limiting piece is sleeved on the partition and moves up and down relative to the partition; the lower end of the limiting piece is provided with a hook, which passes through the bottom surface of the main body and cooperates with the bottom surface of the main body.

5. A circuit breaker with a locking structure as claimed in claim 1 or 3, characterized in that: It also includes a first micro switch, which is located on the movement track of the first locking part.

6. A circuit breaker with a locking structure as claimed in claim 1, characterized in that: It also includes a locking assembly, the locking piece is a part of the locking assembly, and the locking assembly also includes a driving piece and a locking sleeve; the locking sleeve is connected and fixed to the body, and the driving piece passes through the locking sleeve and is linked to the locking piece.

7. A circuit breaker with a locking structure as claimed in claim 6, characterized in that: The locking assembly also includes a washer and a nut, wherein the washer is located between the locking sleeve and the nut.

8. A circuit breaker with a locking structure as claimed in claim 1, characterized in that: It also includes a second micro switch, the main body is provided with a first through hole, the operating panel is provided with a boss portion and a second through hole, when in the first position, the first through hole and the second through hole are coaxially arranged; when in the second position, the boss portion and the second micro switch are against each other.

9. A circuit breaker with a locking structure as claimed in claim 1 or 8, characterized in that: The operation panel is provided with a gear protrusion, the body is provided with two gear slots, and the gear protrusion switches between the two gear slots.

10. A circuit breaker with a locking structure as claimed in claim 9, characterized in that: One of the operation panel and the body is provided with a guide groove, and the other of the operation panel and the body is provided with a guide column matched with the guide groove.

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