Circuit breaker

Abstract

The utility model relates to the technical field of circuit breakers, in particular to a circuit breaker, which comprises a circuit breaker shell, a button, a transmission assembly and a locking piece, a first through hole in sliding fit with the button is formed in one side of the circuit breaker shell, and a second through hole matched with the locking piece is formed in the adjacent side of the circuit breaker shell; one end of the button is slidably arranged in the circuit breaker shell through the first through hole; the transmission assembly is arranged in the circuit breaker shell and is in transmission connection with the button; the locking piece is rotatably connected in the circuit breaker shell and is connected with the transmission assembly; a locking block is arranged on the locking piece in a protruding mode, and the locking block is provided with a locking position which protrudes out of the outer side of the circuit breaker shell through the second through hole and is matched with the cabinet receding hole in a limiting mode. The locking block is provided with an unlocking position where the locking block retracts to the second through hole and is separated from the cabinet receding hole. The circuit breaker provided by the utility model not only can prevent the circuit breaker from being switched on when the circuit breaker is not installed in place, but also can prevent the circuit breaker from being pulled out of a cabinet in a switched-on state.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit breaker technical field, concretely relates to a circuit breaker. BACKGROUND

[0002] The circuit breaker is a kind of switch electric appliance that not only can be connected and disconnected normal load current and overload current, but also can be connected and disconnected short-circuit current.Low-voltage circuit breaker has certain protection function, such as overload, short-circuit, under-voltage and leakage protection, in addition to control function in circuit.

[0003] The circuit breaker of the prior art has the risk of misoperation when not installed in place, is prone to cause accidents and increases operation risk;There is the risk of being pulled out by mistake under the energized state, which is not conducive to the reliable and stable work of the circuit breaker, and there is also a safety hazard. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model wants to overcome the defect that the circuit breaker of prior art has the risk of misoperation when not installed in place and the risk of being pulled out by mistake under the energized state, to provide a circuit breaker that can prevent the circuit breaker from being operated when not installed in place and can prevent the circuit breaker from being pulled out of cabinet under the operated state.

[0005] In order to solve the above problems, the utility model provides a circuit breaker, including circuit breaker shell, button, transmission assembly, locking piece;The first through hole that is in sliding cooperation with button is arranged on one side of circuit breaker shell, and the second through hole that is in cooperation with locking piece is arranged on the adjacent side;One end of button is arranged in circuit breaker shell through the first through hole;Transmission assembly is arranged in circuit breaker shell and is in transmission connection with button;Locking piece is rotatably connected in circuit breaker shell and is connected with transmission assembly;Locking piece is protruded with locking block, locking block has locking position that is protruded outside circuit breaker shell through the second through hole and is in limiting cooperation with cabinet relief hole;And locking block has unlocking position that is retracted in the second through hole and is separated from cabinet relief hole.

[0006] The circuit breaker provided by the utility model, transmission assembly includes first transmission gear and connecting rod;First transmission gear is rotatably connected in circuit breaker shell and is engaged with the rotating shaft of locking piece;One end of connecting rod is connected with button, and the other end is connected with first transmission gear, which is suitable for driving first transmission gear to rotate under the driving of button.

[0007] The circuit breaker provided by the utility model, transmission assembly further includes second transmission gear, and second transmission gear is fixedly connected to the outer periphery of the rotating shaft of locking piece;Second transmission gear is engaged with first transmission gear.

[0008] The circuit breaker further comprises a driving mechanism fixed in the circuit breaker shell, and the transmission assembly further comprises a third transmission gear, the third transmission gear comprises a first gear and a second gear coaxially connected, the diameter of the first gear is larger than that of the second gear, and the second gear is engaged with the second transmission gear.

[0009] The circuit breaker further comprises a driving mechanism fixed in the circuit breaker shell, and the transmission assembly further comprises a third transmission gear, the third transmission gear comprises a first gear and a second gear coaxially connected, the diameter of the first gear is larger than that of the second gear, and the second gear is engaged with the second transmission gear.

[0010] The circuit breaker further comprises a driving mechanism fixed in the circuit breaker shell, and the transmission assembly further comprises a third transmission gear, the third transmission gear comprises a first gear and a second gear coaxially connected, the diameter of the first gear is larger than that of the second gear, and the second gear is engaged with the second transmission gear.

[0011] The circuit breaker further comprises a driving mechanism fixed in the circuit breaker shell, and the transmission assembly further comprises a third transmission gear, the third transmission gear comprises a first gear and a second gear coaxially connected, the diameter of the first gear is larger than that of the second gear, and the second gear is engaged with the second transmission gear.

[0012] The circuit breaker further comprises a driving mechanism fixed in the circuit breaker shell, and the transmission assembly further comprises a third transmission gear, the third transmission gear comprises a first gear and a second gear coaxially connected, the diameter of the first gear is larger than that of the second gear, and the second gear is engaged with the second transmission gear.

[0013] The circuit breaker further comprises a driving mechanism fixed in the circuit breaker shell, and the transmission assembly further comprises a third transmission gear, the third transmission gear comprises a first gear and a second gear coaxially connected, the diameter of the first gear is larger than that of the second gear, and the second gear is engaged with the second transmission gear.

[0014] The circuit breaker further comprises a driving mechanism fixed in the circuit breaker shell, and the transmission assembly further comprises a third transmission gear, the third transmission gear comprises a first gear and a second gear coaxially connected, the diameter of the first gear is larger than that of the second gear, and the second gear is engaged with the second transmission gear.

[0015] The circuit breaker further comprises a driving mechanism fixed in the circuit breaker shell, and the transmission assembly further comprises a third transmission gear, the third transmission gear comprises a first gear and a second gear coaxially connected, the diameter of the first gear is larger than that of the second gear, and the second gear is engaged with the second transmission gear.

[0016] 1. The circuit breaker provided by the utility model, comprising a circuit breaker shell, a button, a transmission assembly, a locking piece; one side of the circuit breaker shell is provided with a first through hole for sliding cooperation with the button, and the adjacent side is provided with a second through hole for cooperation with the locking piece; one end of the button is slidingly arranged in the circuit breaker shell through the first through hole; the transmission assembly is arranged in the circuit breaker shell and is in transmission connection with the button; the locking piece is rotatably connected in the circuit breaker shell and is connected with the transmission assembly; a locking block is protrudingly arranged on the locking piece; the locking block has a locking position protruding outside the circuit breaker shell through the second through hole and is in limiting cooperation with the cabinet allowance hole; and the locking block has an unlocking position retracted in the second through hole and separated from the cabinet allowance hole.

[0017] The locking piece is linked with the button through the transmission assembly; the button is used for manually controlling the movement of the movable contact of the circuit breaker to control the movable contact and the static contact to realize closing or opening; when the circuit breaker is in the closing state under the control of the button, the locking block of the locking piece is in the locking position by passing through the second through hole and cooperating with the cabinet allowance hole; the circuit breaker cannot be installed into the cabinet when it is in the closing state; the circuit breaker cannot be closed when it is installed in the cabinet but not installed in place; thus, the circuit breaker can be prevented from generating arc when being connected into the cabinet in the closed state, so that the safety of the equipment is avoided from being affected. When the circuit breaker is in the opening state under the control of the button, the locking block of the locking piece is separated from the cabinet allowance hole and is in the unlocking position; therefore, only in the opening state, the circuit breaker can be pulled out of the cabinet, the risk that the circuit breaker is mistakenly pulled out of the cabinet in the closed and powered state is avoided, and the use safety and working stability of the circuit breaker are enhanced.

[0018] Specifically, when the circuit breaker is installed in place in the cabinet, the button is pushed towards the circuit breaker shell, the locking piece is rotated relative to the shell under the driving of the transmission assembly, the locking block protrudes outside the circuit breaker shell through the second through hole, the circuit breaker is in the closed state, and the locking block cooperates with the cabinet allowance hole and is in the locking state; in this state, the circuit breaker cannot be pulled out of the cabinet, the circuit breaker is prevented from being mistakenly pulled out in the closed state, and the working stability of the circuit breaker is enhanced; when the button is pulled away from the circuit breaker shell, the locking piece is rotated relative to the shell under the driving of the transmission assembly, the locking block is retracted in the second through hole, the circuit breaker is in the opening state, and the locking block is separated from the cabinet allowance hole and is in the unlocking state; in this state, the circuit breaker can be pulled out of the cabinet or installed in the cabinet, and the use safety of the circuit breaker is enhanced.

[0019] When the circuit breaker is not installed in place in the cabinet, the button is pushed towards the circuit breaker shell, the locking piece is rotated relative to the shell under the driving of the transmission assembly, the locking block cannot protrude outside the circuit breaker shell through the second through hole, cannot reach the locking position, and the circuit breaker cannot be closed and is in the opening state; in this way, the circuit breaker is prevented from being closed in the case that the circuit breaker is not installed in place, the safety hazard is eliminated, the operation risk is reduced, and the safety performance is improved.

[0020] 2.The circuit breaker provided by the utility model, further comprises a driving mechanism, the driving mechanism is used for automatically controlling the moving contact of the circuit breaker to move, so as to control the moving contact and the static contact to realize closing or opening; the transmission assembly further comprises a third transmission gear, the third transmission gear is used for realizing linkage between the locking piece and the driving mechanism. The third transmission gear comprises a first gear and a second gear, the first gear and the second gear are arranged to be matched with the driving mechanism and the locking piece respectively.

[0021] 3.The circuit breaker provided by the utility model, a helical gear is arranged on the outer periphery of the driving shaft of the driving mechanism, and the helical gear is engaged with the third transmission gear.

[0022] In the energized state, the electrically driven circuit breaker is closed or opened, the driving shaft of the driving mechanism drives the helical gear to rotate, so as to drive the locking piece to rotate.

[0023] When the driving mechanism is not energized, the driving shaft can rotate, the helical gear can rotate freely, when the manually driven circuit breaker is closed or opened, the third transmission gear can rotate freely under the driving of the second transmission gear, and the connecting rod can drive the second transmission gear to rotate. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to the drawings without creating labor.

[0025] Figure 1 A first perspective view of the partial structure of the circuit breaker of the utility model is shown;

[0026] Figure 2 A second perspective view of the partial structure of the circuit breaker of the utility model is shown;

[0027] Figure 3 A first perspective view of the connection relationship between the button, the driving mechanism and the transmission assembly of the utility model is shown;

[0028] Figure 4 A second perspective view of the connection relationship between the button, the driving mechanism and the transmission assembly of the utility model is shown;

[0029] Figure 5 A locking piece structure diagram of the utility model is shown.

[0030] Explanation of reference signs:

[0031] 1, circuit breaker housing; 21, button; 22, driving mechanism; 31, first transmission gear; 32, third transmission gear; 321, first gear; 322, second gear; 33, connecting rod; 34, helical gear; 35, second transmission gear; 351, third gear; 352, fourth gear; 4, locking piece; 41, locking piece main body; 411, first connecting section; 412, second connecting section; 413, limiting plane; 42, locking block; 43, abutting block; 5, boss. DETAILED DESCRIPTION

[0032] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0033] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0035] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as there is no conflict.

[0036] For example, the first transmission gear 31 and the third transmission gear 32 can be combined into a single transmission gear, or the first gear 321 and the second gear 322 can be combined into a single gear. Figures 1 to 5As shown, the embodiment provides a circuit breaker, comprising a circuit breaker housing 1, a button 21, a transmission assembly, a locking piece 4; the circuit breaker housing 1 is provided with a first through hole for sliding cooperation with the button 21 on one side, and is provided with a second through hole for cooperation with the locking piece 4 on the adjacent side; one end of the button 21 is slidingly arranged in the circuit breaker housing 1 through the first through hole; the transmission assembly is arranged in the circuit breaker housing 1 and is in transmission connection with the button 21; the locking piece 4 is rotatably connected in the circuit breaker housing 1 and is connected with the transmission assembly; the locking piece 4 is provided with a locking block 42 protruding therefrom, the locking block 42 has a locking position protruding outside the circuit breaker housing 1 through the second through hole and being in limiting cooperation with the cabinet allowance hole; and the locking block 42 has an unlocking position retracted in the second through hole and being separated from the cabinet allowance hole.

[0037] The locking piece 4 is linked with the button 21 through the transmission assembly, the button 21 is used for manually controlling the moving contact of the circuit breaker to move, so as to control the moving contact and the static contact to realize closing or opening, when the circuit breaker is in the closing state under the control of the button 21, the locking block 42 of the locking piece 4 is in the locking position by passing through the second through hole and cooperating with the cabinet allowance hole, the circuit breaker cannot be installed into the cabinet when it is in the closing state, and the circuit breaker cannot be closed when it is installed in the cabinet but not installed in place, thereby avoiding that the circuit breaker generates arc when it is connected into the cabinet in the closed state, so as to avoid affecting the safety of the equipment. When the circuit breaker is in the opening state under the control of the button 21, the locking block 42 of the locking piece 4 is separated from the cabinet allowance hole and is in the unlocking position; therefore, only in the opening state, the circuit breaker can be pulled out of the cabinet, avoiding the risk that the circuit breaker is mistakenly pulled out of the cabinet in the closed and powered state, and enhancing the use safety and working stability of the circuit breaker.

[0038] Specifically, when the circuit breaker is installed in place in the cabinet, the button 21 is pushed towards the circuit breaker housing 1, the locking piece 4 is rotated relative to the housing under the driving of the transmission assembly, the locking block 42 protrudes outside the circuit breaker housing 1 through the second through hole, the circuit breaker is in the closing state, the locking block 42 cooperates with the cabinet allowance hole and is in the locking state, in this state, the circuit breaker cannot be pulled out of the cabinet, preventing the circuit breaker from being mistakenly pulled out in the closed state, and enhancing the working stability of the circuit breaker; when the button 21 is pulled away from the circuit breaker housing 1, the locking piece 4 is rotated relative to the housing under the driving of the transmission assembly, the locking block 42 is retracted in the second through hole, the circuit breaker is in the opening state, the locking block 42 is separated from the cabinet allowance hole and is in the unlocking state, in this state, the circuit breaker can be pulled out of the cabinet or installed into the cabinet, enhancing the use safety of the circuit breaker.

[0039] When the circuit breaker is not installed in place in the cabinet, the button 21 is pushed towards the circuit breaker housing 1, the locking piece 4 is rotated relative to the housing under the drive of the transmission assembly, the locking block 42 cannot protrude outside the circuit breaker housing 1 through the second through hole, cannot reach the locking position, the circuit breaker cannot be closed, is in an open state, prevents closing in the case that the circuit breaker is not installed in place, eliminates the safety hazard, reduces the operation risk, and improves the safety performance.

[0040] In the embodiment, the transmission assembly comprises a first transmission gear 31 and a connecting rod 33; the first transmission gear 31 is rotatably connected in the circuit breaker housing 1 and is engaged with the rotating shaft of the locking piece 4; the connecting rod 33 is connected with the button 21 at one end and is connected with the first transmission gear 31 at the other end, and is suitable for driving the first transmission gear 31 to rotate under the drive of the button 21. The connection position of the other end of the connecting rod 33 with the first transmission gear 31 is staggered with the rotating shaft of the first transmission gear 31, so as to ensure that the connecting rod 33 can drive the first transmission gear 31 to rotate under the drive of the button 21.

[0041] In the embodiment, the transmission assembly further comprises a second transmission gear 35, and the second transmission gear 35 is fixedly connected to the outer periphery of the rotating shaft of the locking piece 4, and the second transmission gear 35 is engaged with the first transmission gear 31.

[0042] In a specific embodiment, as shown in the perspective view, Figure 1 the second transmission gear 35 is fixed to the outer periphery of the rotating shaft of the locking piece 4 and rotates coaxially with the locking piece 4. Under the action of an external force, the button 21 is pushed towards the circuit breaker housing 1, the button 21 drives the connecting rod 33 to drive the first transmission gear 31 to rotate clockwise relative to the circuit breaker housing 1, the second transmission gear 35 rotates counterclockwise relative to the housing under the drive of the first transmission gear 31, the locking piece 4 rotates about its own axis, the locking block 42 can protrude outside the circuit breaker housing 1 through the second through hole, and the locking piece 4 is in a locked state in cooperation with the accommodation hole of the cabinet. The button 21 is pulled away from the circuit breaker housing 1, the button 21 drives the connecting rod 33 to drive the first transmission gear 31 to rotate counterclockwise relative to the circuit breaker housing 1, the second transmission gear 35 rotates clockwise relative to the housing under the drive of the first transmission gear 31, the locking piece 4 rotates about its own axis, the locking block 42 is retracted into the second through hole, and the locking piece 4 is in an unlocked state separated from the accommodation hole of the cabinet.

[0043] In the embodiment, a driving mechanism 22 is further included, which is used for automatically controlling the moving contact of the circuit breaker to move, so as to control the moving contact and the stationary contact to be closed or opened. The transmission assembly further comprises a third transmission gear 32, and the locking piece 4 and the driving mechanism 22 are linked through the third transmission gear 32. The third transmission gear 32 comprises a first gear 321 and a second gear 322, and the first gear 321 and the second gear 322 are arranged to be respectively matched with the driving mechanism 22 and the locking piece 4.

[0044] In the embodiment, the second transmission gear 35 comprises a third gear 351 and a fourth gear 352 coaxially connected, the diameter of the third gear 351 is larger than that of the fourth gear 352, the third gear 351 is engaged with the second gear 322, and the fourth gear 352 is engaged with the first transmission gear 31.

[0045] The third transmission gear 32 and the second transmission gear 35 are both compound gears, the first gear 321 and the second gear 322 rotate coaxially, and the third gear 351 and the fourth gear 352 rotate coaxially. The plane where the end face of the third gear 351 is located is separated from the plane where the end face of the first transmission gear 31 and the first gear 321 is located, so as to reduce the friction force generated by the mutual contact of the end faces when the gears rotate. The tooth surface of the first transmission gear 31 and the tooth surface of the third transmission gear 32 are arranged with a gap therebetween, and do not affect each other when rotating.

[0046] As an alternative embodiment, the second transmission gear 35 can be a single-layer gear, engaged with the first transmission gear 31 and the second gear 322. The plane where the end face of the second transmission gear 35 is located is separated from the plane where the end face of the first gear 321 is located, so as to reduce the friction force generated by the mutual contact of the end faces when the gears rotate.

[0047] As an alternative embodiment, the third transmission gear 32 can be a single-layer gear, engaged with the third gear 351 and the driving shaft of the driving mechanism 22.

[0048] As an alternative embodiment, the second transmission gear 35 and the third transmission gear 32 can both be single-layer gears, the second transmission gear 35 is engaged with the first transmission gear 31 and the third transmission gear 32, and the third transmission gear 32 is engaged with the driving shaft of the driving mechanism 22.

[0049] In the embodiment, the outer periphery of the driving shaft of the driving mechanism 22 is provided with a helical gear 34, and the helical gear 34 is engaged with the third transmission gear 32.

[0050] In the energized state, the electrically driven circuit breaker is closed or opened, the driving shaft of the driving mechanism 22 drives the helical gear 34 to rotate, so as to drive the locking member 4 to rotate.

[0051] When the driving mechanism 22 is not energized, it is in a free state, the driving shaft can rotate, the helical gear 34 can freely rotate, when the circuit breaker is manually driven to be closed or opened, the third transmission gear 32 can freely rotate under the driving of the second transmission gear 35, and the connecting rod 33 can drive the second transmission gear 35 to rotate.

[0052] In the specific embodiment, as shown in Figure 1When the helical gear 34 drives the first gear 321 to rotate clockwise relative to the circuit breaker housing 1, the second gear 322 drives the third gear 351 to rotate counterclockwise relative to the circuit breaker housing 1, the locking member 4 rotates about its own axis, and the locking block 42 protrudes out of the second through hole on the outside of the circuit breaker housing 1, and the locking block 42 is in a locked state in cooperation with the cabinet relief hole; at the same time, the fourth gear 352 drives the first transmission gear 31 to rotate counterclockwise relative to the circuit breaker housing 1, and can drive the button 21 to slide towards the direction of the circuit breaker housing 1.

[0053] When the helical gear 34 drives the first gear 321 to rotate counterclockwise relative to the circuit breaker housing 1, the second gear 322 drives the third gear 351 to rotate clockwise relative to the circuit breaker housing 1, the locking member 4 rotates about its own axis, and the locking block 42 is retracted into the second through hole, and the locking block 42 is separated from the cabinet relief hole and is in an unlocked state; at the same time, the fourth gear 352 drives the first transmission gear 31 to rotate clockwise relative to the circuit breaker housing 1, and can drive the button 21 to slide away from the direction of the circuit breaker housing 1.

[0054] In the embodiment, the locking member 4 further includes a locking member body 41, one end of the axis of rotation of the locking member 4 is connected to one end of the locking member body 41; and the locking block 42 is arranged at the other end of the locking member body 41 and protrudes away from the axis of rotation and the first transmission gear 31.

[0055] In a specific embodiment, as shown in the view, Figure 1 As shown in the view, under the driving of the transmission assembly, when the axis of rotation of the locking member 4 rotates about its own axis, the locking member body 41 is driven to rotate counterclockwise relative to the circuit breaker housing 1, and the locking member body 41 can drive the locking block 42 to be located at the locking position; or the locking member body 41 is driven to rotate clockwise relative to the circuit breaker housing 1, and the locking member body 41 can drive the locking block 42 to be located at the unlocking position.

[0056] In the embodiment, the locking member body 41 includes a first connecting section 411 and a second connecting section 412, one end of the first connecting section 411 is connected to the axis of rotation, the other end is connected to one end of the second connecting section 412, an included angle is arranged between the first connecting section 411 and the second connecting section 412, a limiting plane 413 is arranged on the side of the second connecting section 412 away from the first connecting section 411, the locking block 42 is protrudingly arranged on the limiting plane 413 and located at the other end of the second connecting section 412, and the limiting plane 413 abuts against the circuit breaker housing 1 when the locking block 42 is at the locking position. The arrangement of the limiting plane 413 can limit the position of the locking member body 41, and further limit the position of the locking block 42, so as to prevent the locking block 42 from being damaged due to excessive force.

[0057] In the embodiment, the other end of the first connecting section 411 is smoothly connected with the one end of the second connecting section 412. During the rotation of the locking member 4, the sharp edges will not interfere with and rub against the circuit breaker shell 1, and the sharp edges can not cause inconvenience and damage to the disassembling workers during the disassembling process.

[0058] The angle formed between the first connecting section 411 and the second connecting section 412 is between 90 degrees and 120 degrees, and in actual operation, other angle values can also be set according to specific conditions. The distance between the rotation shaft of the locking member 4 and the limiting plane 413 is greater than the radius of the second transmission gear 35, and there is a gap between the inner side of the circuit breaker shell 1 and the tooth surface of the second transmission gear 35, which will not affect the rotation of the second transmission gear 35.

[0059] In the embodiment, the locking member 4 further comprises an abutting block 43, which extends from the end of the locking member 4 body away from the locking block 42 to the direction of the first transmission gear 31; the circuit breaker further comprises a boss 5, which is fixedly connected to the end face of the first transmission gear 31, and one end is coaxially arranged with the first transmission gear 31; the other end is rotatably connected with the end of the connecting rod 33 away from the button 21; the other end of the boss 5 cooperates with the abutting block 43, which is suitable for driving the locking member 4 to rotate to the locking position.

[0060] The abutting block 43 is arranged in parallel with the second connecting section 412, and the included angle between the abutting block 43 and the first connecting section 411 is between 60 degrees and 90 degrees, and in actual operation, other angle values can also be set according to specific conditions.

[0061] The length of the abutting block 43 is less than the distance between the axis of the first transmission gear 31 and the axis of the second transmission gear 35, and the end of the boss 5 coaxially connected with the second transmission gear 35 is separated from the abutting block 43, and they do not affect each other, avoiding the boss 5 limiting the movement of the locking member 4 to the unlocking position.

[0062] In a specific embodiment, when the locking member 4 is in the locking position, the end of the boss 5 and the connecting rod 33 connected with the abutting block 43 abuts; when the locking member 4 is in the unlocking position, the end of the boss 5 and the connecting rod 33 connected with the abutting block 43 is separated.

[0063] Preferably, the locking member body 41, the rotation shaft of the locking member 4, the locking block 42 and the abutting block 43 can be integrally formed or fixedly connected in parts.

[0064] Obviously, the above embodiments are merely example for clearly illustrating but not limitation to the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments need not and can not be enumerated. The obvious changes or variations derived from the above description are still within the protection scope of the present application.

Claims

1. A circuit breaker, characterized in that, include: The circuit breaker housing (1) has a first through hole on one side that slides with the button (21), and a second through hole on the adjacent side that engages with the locking member (4); Button (21), one end of which is slidably disposed inside the circuit breaker housing (1) through the first through hole; A transmission assembly is disposed inside the circuit breaker housing (1) and is connected in transmission to the button (21); A locking member (4) is rotatably connected inside the circuit breaker housing (1) and connected to the transmission assembly; a locking block (42) protrudes from the locking member (4), the locking block (42) having a locking position that protrudes from the outside of the circuit breaker housing (1) through the second through hole and is limited to the cabinet clearance hole; and the locking block (42) having an unlocking position that retracts into the second through hole and separates from the cabinet clearance hole.

2. The circuit breaker according to claim 1, characterized in that, The transmission assembly includes: The first transmission gear (31) is rotatably connected inside the circuit breaker housing (1) and meshes with the shaft of the locking member (4); The connecting rod (33) is connected at one end to the button (21) and at the other end to the first transmission gear (31), and is adapted to drive the first transmission gear (31) to rotate under the action of the button (21).

3. The circuit breaker according to claim 2, characterized in that, The transmission assembly further includes a second transmission gear (35), which is fixedly connected to the outer periphery of the shaft of the locking member (4), and the second transmission gear (35) meshes with the first transmission gear (31).

4. The circuit breaker according to claim 3, characterized in that, It also includes a drive mechanism (22) fixed inside the circuit breaker housing (1); the transmission assembly also includes a third transmission gear (32), the third transmission gear (32) including a first gear (321) and a second gear (322) coaxially connected, the diameter of the first gear (321) being larger than the diameter of the second gear (322), the second gear (322) meshing with the second transmission gear (35); the first gear (321) meshing with the drive shaft of the drive mechanism (22).

5. The circuit breaker according to claim 4, characterized in that, The second transmission gear (35) includes a third gear (351) and a fourth gear (352) coaxially connected. The diameter of the third gear (351) is larger than the diameter of the fourth gear (352). The third gear (351) meshes with the second gear (322), and the fourth gear (352) meshes with the first transmission gear (31).

6. The circuit breaker according to claim 5, characterized in that, The drive shaft of the drive mechanism (22) is provided with a helical gear (34), which meshes with the third transmission gear (32).

7. The circuit breaker according to any one of claims 2-6, characterized in that, The locking member (4) further includes a locking member body (41), one axial end of the rotating shaft of the locking member (4) is connected to one end of the locking member body (41); the locking block (42) is disposed at the other end of the locking member body (41) and protrudes in a direction away from the rotating shaft and the first transmission gear.

8. The circuit breaker according to claim 7, characterized in that, The locking body (41) includes a first connecting section (411) and a second connecting section (412). One end of the first connecting section (411) is connected to the rotating shaft, and the other end is connected to one end of the second connecting section (412). An angle is provided between the first connecting section (411) and the second connecting section (412). A limiting plane (413) is provided on the side of the second connecting section (412) facing away from the first connecting section (411). The locking block (42) protrudes from the limiting plane (413) and is located at the other end of the second connecting section (412). When the locking block (42) is in the locked position, the limiting plane (413) abuts against the circuit breaker housing (1).

9. The circuit breaker according to claim 8, characterized in that, The other end of the first connecting segment (411) smoothly transitions to one end of the second connecting segment (412).

10. The circuit breaker according to claim 7, characterized in that, The locking member (4) also includes an abutment block (43), which extends from the end of the locking member body (41) away from the locking block toward the first transmission gear (31); The circuit breaker also includes a boss (5), which is fixedly connected to the end face of the first transmission gear (31). One end is coaxially arranged with the first transmission gear (31), and the other end is rotatably connected to the end of the connecting rod (33) away from the button. The other end of the boss (5) cooperates with the abutment block (43) and is suitable for driving the locking member (4) to rotate to the locking position.

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