Circuit breaker accessory and circuit breaker

Abstract

The present invention provides a circuit breaker accessory and a circuit breaker, which relate to the technical field of low-voltage electrical appliances. The circuit breaker accessory comprises a shell, in which an upper bracket, a lower bracket, a handle, a left contact, a right contact, a left lower terminal block, a left middle terminal block, a right middle terminal block and a right lower terminal block are arranged. The upper bracket and the lower bracket are coaxially rotatable on the shell, and a first linkage mechanism and a second linkage mechanism are respectively provided on the upper bracket and the lower bracket; the handle is rotatable on the shell, and the first linkage mechanism includes a knob rotatably provided on the upper bracket; the circuit breaker comprises a circuit breaker accessory; the present invention cooperates with the upper bracket provided with the first linkage mechanism and the lower bracket provided with the second linkage structure, so that the user can form a corresponding contact mode between the contacts and the terminal block according to actual needs, thereby not only realizing auxiliary and alarm functions, but also realizing function switching by simply rotating the knob and changing the action mode, and the operation is extremely convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of low-voltage electrical appliances, and in particular to a circuit breaker accessory and a circuit breaker. Background Art

[0002] Electrical accessories are the most common electrical devices in circuit breaker auxiliary units. They are generally divided into auxiliary electrical accessories and alarm electrical accessories. Auxiliary electrical accessories control and indicate the circuit breaker's open, closed, and tripped states by switching contacts on and off. Alarm electrical accessories issue alarm signals when a fault occurs.

[0003] With the development of technology and the improvement of industry requirements, it is now required to have clear status feedback for the real-time status of low-voltage circuit breaker switches. It is required not only to be able to feedback the closing and opening status of the circuit breaker handle, but also to be able to feedback the status of the circuit breaker fault tripping, so as to improve the efficiency of fault elimination and improve the safety of electricity use. In this way, it is necessary to install circuit breaker accessories to realize the status feedback of the handle closing and opening and fault tripping. The installation requirements of accessories are different according to different power distribution requirements. Some require auxiliary contact accessories, and some require alarm contact accessories. Therefore, manufacturers need to stock a variety of different accessory products such as auxiliary alarm electrical accessories, dual auxiliary electrical accessories, etc. Traditional circuit breaker accessories have a single function. In actual use, if they need to be replaced, they need to disassemble and replace the circuit breaker with the corresponding function. Not only is it inconvenient to use, but it also greatly increases the inventory usage of complete set manufacturers, increases the difficulty of warehouse management, and increases management costs. Summary of the Invention

[0004] The purpose of the present invention is to provide a circuit breaker accessory and a circuit breaker to solve the technical problem in the prior art that traditional circuit breaker electrical accessories can only realize auxiliary or alarm functions and are inconvenient to use; the preferred technical solution among the many technical solutions provided by the present invention can produce many technical effects; see the details below.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] The present invention provides a circuit breaker accessory, comprising a housing, wherein an upper bracket, a lower bracket, a handle, a left contact, a right contact, a left lower terminal block, a left middle terminal block, a right middle terminal block, and a right lower terminal block are arranged in the housing, wherein: the upper bracket and the lower bracket are coaxially rotatable on the housing, the upper bracket is located on the upper side of the lower bracket, the upper bracket is provided with a first linkage mechanism, and the lower bracket is provided with a second linkage mechanism; the handle is rotatably arranged on the housing, the handle is connected to the lower bracket through the second linkage mechanism, and the handle can be rotated by the second linkage mechanism The first linkage mechanism comprises a knob rotatably arranged on the upper bracket, and when the knob is rotated to the first position, the handle can drive the left contact to contact the lower left wiring bank or the left middle wiring bank through the second linkage mechanism, the lower bracket and the upper bracket; when the knob is rotated to the second position, the handle can drive the left contact to contact the lower left wiring bank or the left middle wiring bank through the second linkage mechanism, the lower bracket, the upper bracket and the first linkage mechanism.

[0007] Preferably, the first linkage mechanism includes a claw, and a first mounting portion and a second mounting portion are provided on the upper bracket, wherein: the claw can be rotatably provided on the first mounting portion; the knob can be rotatably provided on the second mounting portion; a guide overlap portion is provided on the handle, an abutting portion and a limiting groove are provided on the claw, and a limiting portion is provided on the knob; when the knob is rotated to the first position, the limiting portion abuts against the abutting portion; when the knob is rotated to the second position, the limiting portion slides into the limiting groove, and the handle is rotated so that the guide overlap portion can abut against the abutting portion.

[0008] Preferably, a first positioning portion is provided on the knob, and a first positioning slot and a second positioning slot are provided on the upper bracket, wherein: the first positioning slot and the second positioning slot are both adapted to the first positioning portion; when the knob is rotated to the first position, the first positioning portion slides into the first positioning slot; when the knob is rotated to the second position, the first positioning portion slides into the second positioning slot.

[0009] Preferably, a driving slot is provided on the knob, and an auxiliary tool is inserted into the driving slot and rotated, which can drive the knob to rotate synchronously, so as to adjust the first positioning portion to the first position slot or the second position slot.

[0010] Preferably, the first linkage mechanism includes a spring, a first connecting portion is provided on the upper bracket, a second connecting portion is provided on the claw, and two ends of the spring are respectively connected to the first connecting portion and the second connecting portion.

[0011] Preferably, a second positioning portion is provided on the clamping claw, and a positioning groove is provided on the upper bracket. The second positioning portion is adapted to the positioning groove, and when the limiting portion slides into the limiting groove, the second positioning portion slides into the positioning groove.

[0012] Preferably, the second linkage mechanism includes a lock buckle and a jump buckle, and a third mounting part and a fourth mounting part are provided on the lower bracket, wherein: the lock buckle can be rotatably provided on the third mounting part and is transmission-connected to the handle; the jump buckle can be rotatably provided on the fourth mounting part, and the jump buckle is provided with an elastomer, and the elastomer is abutted against the shell; the lock buckle is provided with a locking part, and the jump buckle is provided with a locking part, and the locking part can be locked with the locking part.

[0013] Preferably, the second linkage mechanism includes a connecting rod, a third connecting portion is provided on the handle, a fourth connecting portion is provided on the lock buckle, and both ends of the connecting rod are rotatably connected to the third connecting portion and the fourth connecting portion respectively.

[0014] Preferably, the circuit breaker accessory includes a test button, which is rotatably arranged on the handle; a sliding portion is provided on the test button, and the sliding portion can slide along the guide overlap portion.

[0015] The present invention provides a circuit breaker, comprising any of the above-mentioned circuit breaker accessories.

[0016] The circuit breaker accessory and circuit breaker provided by the present invention have at least the following beneficial effects:

[0017] The circuit breaker accessory includes a shell, in which an upper bracket, a lower bracket, a handle, a left contact, a right contact, a left lower terminal block, a left middle terminal block, a right middle terminal block and a right lower terminal block are arranged. The upper bracket and the lower bracket are used to support and link the left contact, the right contact and other components. The contacts and the terminal block cooperate with each other to ensure circuit conduction.

[0018] The upper bracket and the lower bracket are coaxially rotatably arranged on the shell, the upper bracket is located on the upper side of the lower bracket, the upper bracket is provided with a first linkage mechanism, and the lower bracket is provided with a second linkage mechanism. When in use, the handle can drive the left contact to contact the corresponding lower left terminal block or left middle terminal block, and drive the right contact to contact the corresponding lower right terminal block or right middle terminal block through the upper bracket, the lower bracket, the first linkage mechanism and the second linkage mechanism, so as to realize the auxiliary and alarm functions. During actual use, the user can rotate the knob and place it in the first position or the second position according to actual needs to obtain the contact mode between the contact and different terminal blocks, thereby realizing the switching of the auxiliary and alarm functions.

[0019] The circuit breaker includes the circuit breaker accessory. Through the circuit breaker accessory, the circuit breaker not only has auxiliary and alarm functions, but also has convenient function switching.

[0020] The present invention cooperates with an upper bracket provided with a first linkage mechanism and a lower bracket provided with a second linkage structure. The user can adjust the contact mode between the contacts and the terminal block according to actual needs, thereby not only realizing the auxiliary and alarm functions, but also realizing the switching of functions by simply turning a knob and changing the action mode without disassembling and replacing the circuit breaker. The operation is extremely convenient, and at the same time, the types of circuit breakers required are significantly reduced, the warehouse occupancy is reduced, and the warehouse management cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a schematic diagram of the structure of the electrical accessory alarm function of the present invention;

[0023] Figure 2 It is a schematic diagram of the auxiliary function structure of the electrical accessory of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the handle overlap claw position of the present invention;

[0025] Figure 4 It is an enlarged view of part A of the present invention;

[0026] Figure 5 It is an enlarged view of part B of the present invention;

[0027] Figure 6 It is an enlarged view of part C of the present invention;

[0028] Figure 7 Schematic diagram of the upper bracket structure of the present invention;

[0029] Figure 8 Schematic diagram of the lower bracket structure of the present invention;

[0030] Figure 9 It is a schematic diagram of the handle structure of the present invention;

[0031] Figure 10 It is a schematic diagram of the knob structure of the present invention;

[0032] Figure 11 This is a schematic structural diagram of the knob of the present invention from another perspective;

[0033] Figure 12 2. It is a schematic diagram of the claw structure of the present invention;

[0034] Figure 13 Schematic diagram of the lock structure of the present invention;

[0035] Figure 14 It is a schematic diagram of the jump button structure of the present invention;

[0036] Figure 15 It is a schematic diagram of the test button structure of the present invention.

[0037] Reference numerals

[0038] 1. Housing; 2. Upper bracket; 21. Upper bracket shaft hole; 22. First mounting portion; 23. Second mounting portion; 24. Second positioning slot; 25. First positioning slot; 26. First connecting portion; 27. Positioning slot; 3. Lower bracket; 31. Lower bracket shaft hole; 32. Third mounting portion; 33. Fourth mounting portion; 4. Handle; 41. Handle mounting hole; 42. Guide overlap portion; 43. Third connecting portion; 5. Left contact; 6. Right contact; 7. Lower left terminal block; 8. Left center terminal block; 9. Right center terminal block; 10. Lower right terminal block; 11. First linkage mechanism; 111. Knob; 1111. Knob mounting hole; 1112. Limiting portion; 1113. First positioning portion; 1114. Driving groove; 112. Claw; 1121. Claw mounting hole; 1122. Abutting portion; 1123. Limiting groove; 1124. Second positioning portion; 1125. Second connecting portion; 113. Spring; 12. Second linkage mechanism; 121. Lock; 1211. Lock mounting hole; 1212. Locking portion; 1213. Fourth connecting portion; 122. Jump buckle; 1221. Jump buckle mounting hole; 1222. Elastomer; 1223. Locking portion; 123. Connecting rod; 13. Test button; 131. Button mounting hole; 132. Sliding portion. DETAILED DESCRIPTION

[0039] To make the objectives, technical solutions, and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without inventive effort are within the scope of protection of the present invention.

[0040] Example 1:

[0041] The present invention provides a circuit breaker accessory, such as Figures 1-8As shown, the circuit breaker accessory includes a housing 1, in which an upper bracket 2, a lower bracket 3, a handle 4, a left contact 5, a right contact 6, a left lower terminal block 7, a left middle terminal block 8, a right middle terminal block 9 and a right lower terminal block 10 are arranged.

[0042] The upper bracket 2 is located on the upper side of the lower bracket 3. An upper bracket shaft hole 21 is provided on the upper bracket 2, and a lower bracket shaft hole 31 is provided on the lower bracket 3. The upper bracket shaft hole 21 and the lower bracket shaft hole 31 are coaxially arranged. The upper bracket 2 and the lower bracket 3 are coaxially rotatable on the shell 1. The upper bracket 2 and the lower bracket 3 are independent of each other and can rotate synchronously or separately and independently.

[0043] The upper bracket 2 is provided with a first linkage mechanism 11 , and the lower bracket 3 is provided with a second linkage mechanism 12 .

[0044] The left contact 5 is mounted on a first support bar connected to the upper bracket 2 , and the left contact 5 moves synchronously with the upper bracket 2 .

[0045] The right contact 6 is mounted on the second support bar, and the second support bar is connected to the lower bracket 3 . The right contact 6 moves synchronously with the lower bracket 3 .

[0046] A handle mounting hole 41 is provided on the handle 4, and the handle 4 can be rotatably set on the housing 1 through the handle mounting hole 41. The handle 4 is connected to the lower bracket 3 through the second linkage mechanism 12. The handle 4 can drive the right contact 6 to contact the right lower terminal block 10 or the right middle terminal block 9 through the second linkage mechanism 12 and the lower bracket 3.

[0047] The first linkage mechanism 11 includes a knob 111, which is provided with a knob mounting hole 1111. The knob 111 can be rotatably mounted on the upper bracket 2 through the knob mounting hole 1111. When the knob 111 is rotated to the first position, the handle 4 can drive the left contact 5 to contact the lower left terminal block 7 or the left middle terminal block 8 through the second linkage mechanism 12, the lower bracket 3 and the upper bracket 2; when the knob 111 is rotated to the second position, the handle 4 can be transmission-connected with the second linkage mechanism 12, and the handle 4 can drive the left contact 5 to contact the lower left terminal block 7 or the left middle terminal block 8 through the second linkage mechanism 12, the lower bracket 3, the upper bracket 2 and the first linkage mechanism 11.

[0048] During actual use, the user rotates the knob 111 to the first position or the second position according to actual needs, thereby adjusting the second linkage mechanism 12 to the corresponding transmission state. After that, the control handle 4 is actuated, and the upper bracket 2, the lower bracket 3, the first linkage mechanism 11 and the second linkage mechanism 12 cooperate with each other to transmit power to the left contact 5 and the right contact 6, thereby adjusting the left contact 5 to contact with the lower left terminal block 7 or the left middle terminal block 8, and adjusting the right contact 6 to contact with the right middle terminal block 9 and the lower right terminal block 10.

[0049] The present invention cooperates with each other through the upper bracket provided with the first linkage mechanism and the lower bracket provided with the second linkage mechanism, which not only realizes the auxiliary and alarm functions, but also can realize the switching of functions by simply turning the knob and adjusting the action mode of each component without disassembling and replacing the circuit breaker, which is convenient to operate. At the same time, it effectively reduces the types of circuit breakers required, reduces the warehouse occupancy, and reduces the warehouse management cost.

[0050] As an optional embodiment, Figure 4-12 As shown, the first linkage mechanism 11 includes a claw 112, and the upper bracket 2 is provided with a first mounting portion 22 and a second mounting portion 23. The first mounting portion 22 is configured as a first mounting column, and the second mounting portion 23 is configured as a second mounting column.

[0051] A claw mounting hole 1121 is provided through one end of the claw 112 , and the claw 112 can be rotatably mounted on the first mounting post through the claw mounting hole 1121 .

[0052] A knob mounting hole 1111 is provided through the knob 111 , and the knob 111 is rotatably mounted on the second mounting post through the knob mounting hole 1111 .

[0053] The post hole installation method is simple in structure and can be firmly installed while ensuring the rotation effect of the claw 112 and the knob 111.

[0054] The handle 4 is provided with a guide overlap portion 42 , which is arranged in an arc shape, wherein the arc segment surface mainly plays a guiding role, and the end portion mainly plays an overlapping role.

[0055] The clamping claw 112 is provided with an abutting portion 1122 and a limiting groove 1123 . The other end of the clamping claw 112 forms the abutting portion 1122 , and the limiting groove 1123 is opened on the side surface of the clamping claw 112 .

[0056] A limiting portion 1112 is provided on the knob 111 . One end of the knob 111 is matched with the limiting groove 1123 , and the end forms the limiting portion 1112 .

[0057] During actual use, according to actual needs, when the knob 111 is rotated to the first position, the limiting portion 1112 abuts against the abutting portion 1122 .

[0058] In actual use, when the knob 111 is rotated to the second position according to actual needs, the limiting portion 1112 slides into the limiting groove 1123. In this state, Figure 3As shown, when the handle 4 moves from the closed state to the open state, the abutment portion 1122 can overlap the guide overlap portion 42, thereby limiting the relative position of the upper bracket 2, making it in a static state, and further realizing the separation of the upper bracket 2 and the lower bracket 3 during subsequent actions.

[0059] by Figure 1 As shown, the housing 1 is provided with a guide groove, along which the handle 4 can rotate. Figure 1 The handle 4 is located at the starting end of the guide groove and is in the opening position. When the handle rotates along the guide groove to the ending end, it is in the closing position.

[0060] As an optional implementation, the knob 111 is provided with a first positioning portion 1113 , which is configured as a positioning column, and the upper bracket 2 is provided with a first positioning slot 25 and a second positioning slot 24 .

[0061] The first position slot 25 and the second position slot 24 are both configured as cylindrical slots, adapted to the first positioning portion 1113 , and the first position slot 25 and the second position slot 24 correspond to the first position and the second position, respectively.

[0062] When the knob 111 is rotated to the first position, the first positioning portion 1113 slides into the first position slot 25 .

[0063] When the knob 111 is rotated to the second position, the first positioning portion 1113 slides into the second position slot 24 .

[0064] The first position slot 25, the second position slot 24 and the first positioning portion 1113 cooperate with each other to have a good positioning effect, and can stably position the knob 111 to the first position or the second position, thereby ensuring the switching state of the first linkage mechanism 11, and the function switching effect is significant.

[0065] Furthermore, rounded chamfers are provided at the ends of the first positioning column and the second positioning column to facilitate the first positioning portion 1113 to slide into or out of the position slot, making the function switching operation more labor-saving.

[0066] As an optional embodiment, Figure 11 As shown, a driving groove 1114 is provided on the knob 111 , and the driving groove 1114 is provided on the top surface of the knob and is a groove.

[0067] During the function switching operation, the auxiliary tool is inserted into the driving slot 1114 and rotated, and the knob 111 rotates synchronously with the auxiliary tool, thereby adjusting the first positioning portion 1113 to the first position slot 25 or the second position slot 24. This arrangement has a simple structure and convenient switching operation.

[0068] As an optional embodiment, Figure 3and Figure 4 As shown, the first linkage mechanism 11 includes a spring 113 , a first connecting portion 26 is provided on the upper bracket 2 , and a second connecting portion 1125 is provided on the claw 112 .

[0069] The first connecting portion 26 and the second connecting portion 1125 are configured as hooks, and both ends of the spring 113 are hung on the first connecting portion 26 and the second connecting portion 1125 respectively.

[0070] With this arrangement, when the first positioning portion 1113 slides to the first position slot 25 or the second position slot 24 , the elastic force provided by the spring 113 acts on the knob 111 and the claw 112 , making the positioning state more stable.

[0071] As an optional embodiment, a second positioning portion 1124 is provided on the claw 112 , and the second positioning portion 1124 is configured as a protrusion. A positioning groove 27 is provided on the upper bracket 2 , and the second positioning portion 1124 is adapted to the positioning groove 27 .

[0072] When the limiting portion 1112 slides into the limiting groove 1123, the second positioning portion 1124 slides into the positioning groove 27. The second positioning portion 1124 and the positioning groove 27 cooperate with each other, so that when the knob 111 rotates to the second position, the claw 112 and the upper bracket 2 can be positioned.

[0073] As an optional implementation, such as 1, Figure 2 as well as Figure 13-14 As shown, the second linkage mechanism 12 includes a lock buckle 121 and a jump buckle 122, and a third mounting portion 32 and a fourth mounting portion 33 are provided on the lower bracket 3. The third mounting portion 32 is configured as a third mounting column, and the fourth mounting portion 33 is configured as a fourth mounting column.

[0074] A lock buckle mounting hole 1211 is provided through the lock buckle 121 , and the lock buckle 121 can be rotatably mounted on the third mounting column through the lock buckle mounting hole 1211 . The lock buckle 121 is also transmission-connected to the handle 4 .

[0075] The jump button 122 is provided with a jump button mounting hole 1221 , and the jump button 122 is rotatably arranged on the fourth mounting column through the jump button mounting hole 1221 . The jump button 122 is provided with an elastic body 1222 , and the elastic body 1222 is against the housing 1 .

[0076] The lock buckle 121 is provided with a locking portion 1212 , and the locking portion 1212 is provided with a locking groove. The jump buckle 122 is provided with a locking portion 1223 , and the locking portion 1223 is provided as a locking block.

[0077] When the handle 4 moves from the opening position to the closing position, the locking portion 1212 can be locked with the locking portion 1223 . After locking, the lower bracket 3 and the upper bracket 2 can move with the handle 4 .

[0078] As an optional embodiment, Figure 6 、 Figure 13 and Figure 14 As shown, the second linkage mechanism 12 includes a connecting rod 123 , a third connecting portion 43 is provided on the handle 4 , and a fourth connecting portion 1213 is provided on the lock buckle 121 .

[0079] The third connection portion 43 and the fourth connection portion 1213 are configured as connection holes, and both ends of the connecting rod 123 are rotatably connected to the two connection holes respectively.

[0080] The connecting rod 123 structure is adopted, which has a simple structure and low cost while ensuring the transmission effect.

[0081] As an optional embodiment, Figure 1 、 Figure 9 and 15 As shown, the circuit breaker accessory includes a test button 13 , which is provided with a button mounting hole 131 . The test button 13 is rotatably provided on the handle 4 through the button mounting hole 131 .

[0082] The test button 13 is provided with a sliding portion 132 , which is configured as an arc-shaped slider that matches the arc segment surface of the guide overlap portion 42 . When the test button 13 is rotated, the sliding portion 132 slides along the guide overlap portion 42 .

[0083] The test button 13 is used for testing leakage protection, and its principle is the same as that of the test button of the existing leakage circuit breaker.

[0084] Example 2

[0085] Example 2 is based on Example 1:

[0086] The present invention provides a circuit breaker, which includes the circuit breaker accessory.

[0087] Working principle:

[0088] The present invention implements auxiliary alarm function:

[0089] like Figure 1 、 Figure 3-Figure 15 As shown, the auxiliary tool is inserted into the driving slot 1114 and rotated, so that the first positioning portion 1113 slides to the first position slot 25, and the limiting portion 1112 slides to the limiting slot 1123. At the same time, the second positioning portion 1124 slides to the positioning slot 27, and the spring 113 tightens the knob 111 and the claw 112, locking the knob 111 in the state when it is in the first position.

[0090] Push the handle 4 clockwise to rotate it to the closing position. The handle 4 drives the connecting rod 123 to move, and the lock buckle 121 moves synchronously. When the locking part 1212 moves to the corresponding locking part 1223, the two are locked, the trip buckle 122 and the lock buckle 121 move synchronously, and the upper bracket 2 and the lower bracket 3 also move synchronously. When the handle 4 is closed in place, the left contact 5 contacts the lower left terminal block 7 to send a signal.

[0091] When the handle 4 rotates counterclockwise to the opening position, the handle 4 rotates counterclockwise in the initial movement, and the upper bracket 2 and the lower bracket 3 do not rotate. Figure 3 In the position shown, the upper bracket 2 and the lower bracket 3 rotate synchronously, and the end of the guide overlap portion 42 abuts against the abutment portion 1122. At this time, the upper bracket 2 remains stationary due to the limiting effect, and the lower bracket 3 is separated from the upper bracket 2 by the drive of the handle 4 until the lower bracket 3 and the handle 4 rotate to the opening position. At this time, the upper bracket 2 still remains in the closing position, and the left contact 5 is still in contact with the lower left terminal block 7, and the signal sent has not changed. The lower bracket 3 drives the right contact 6 to move, and the right contact 6 contacts the lower right terminal block 10 to send a closing auxiliary signal, thereby realizing the auxiliary function of the accessory.

[0092] When the handle 4 is in the closing position, the trip latch 122 rotates, the locking portion 1212 separates from the locking portion 1223, the balance of the mechanism is destroyed, and the handle 4 quickly rotates to the opening position. The guide overlap portion 42 cannot contact the abutment portion 1122, and the upper bracket 2 cannot maintain the closing position. The left contact 5 separates from the lower left terminal block 7, and a breakpoint signal is sent. The left contact 5 contacts the left middle terminal block 8 and sends a closing signal, thereby triggering an alarm signal. The lower bracket 3 drives the right contact 6 to move, and the right contact 6 contacts the right middle terminal block 9, sending an opening auxiliary signal, thereby realizing the auxiliary and alarm functions of the accessory.

[0093] The present invention implements dual auxiliary functions:

[0094] like Figure 2-Figure 15 As shown, the auxiliary tool is inserted into the driving slot 1114 and rotated to slide the first positioning portion 1113 to the second positioning slot 24, the limiting portion 1112 abuts against the abutting portion 1122, the second positioning portion 1124 is separated from the positioning slot 27, and the spring 113 tightens the knob 111 and the claw 112, locking the knob 111 in the second position.

[0095] Push the handle 4 clockwise to rotate it to the closing position. The handle 4 drives the connecting rod 123 to move, and the lock buckle 121 moves synchronously. When the locking part 1212 moves to the corresponding locking part 1223, the two are locked, the trip buckle 122 and the lock buckle 121 move synchronously, and the upper bracket 2 and the lower bracket 3 also move synchronously. When the handle 4 is closed in place, the left contact 5 contacts the lower left terminal block 7 to send a signal.

[0096] When the handle 4 rotates counterclockwise to the opening position, in the initial movement, the handle 4 rotates counterclockwise, and the upper bracket 2 and the lower bracket 3 do not rotate. Figure 3 When in the position shown, the upper bracket 2 and the lower bracket 3 move synchronously, the end of the guide overlap portion 42 does not contact the abutment portion 1122, the handle 4 continues to rotate, the upper bracket 2 and the lower bracket 3 rotate to the opening position, the left contact 5 contacts the left middle terminal block 8 and sends a closing signal, triggering the auxiliary signal, and the lower bracket 3 drives the right contact 6 to move, so that the right contact 6 contacts the right lower terminal block 10 to send a closing auxiliary signal, thereby realizing the auxiliary function of the accessory.

[0097] When the handle 4 is in the closing position, the trip latch 122 rotates, the locking portion 1212 separates from the locking portion 1223, the balance of the mechanism is destroyed, and the handle 4 quickly rotates to the opening position. The guide overlap portion 42 cannot contact the abutment portion 1122, and the upper bracket 2 cannot maintain the closing position. The left contact 5 separates from the lower left terminal block 7, and a breakpoint signal is sent. The left contact 5 contacts the left middle terminal block 8 and sends a closing signal, thereby triggering the auxiliary signal. The lower bracket 3 drives the right contact 6 to move, and the right contact 6 contacts the right middle terminal block 9, sending an opening auxiliary signal, realizing the dual auxiliary function of the accessory.

[0098] In the description of this application, it should be understood that the terms "upper", "lower", "inside", "outside", "top", "bottom", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0099] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. Throughout the description of this application, "plurality" or "several" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0100] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; they can refer to direct connection or indirect connection through an intermediate medium; they can refer to internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0101] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A circuit breaker accessory, characterized in that: The device comprises a housing, wherein an upper bracket, a lower bracket, a handle, a left contact, a right contact, a left lower terminal block, a left middle terminal block, a right middle terminal block, and a right lower terminal block are arranged in the housing, wherein: The upper bracket and the lower bracket are coaxially rotatably arranged on the housing, the upper bracket is located on the upper side of the lower bracket, the upper bracket is provided with a first linkage mechanism, and the lower bracket is provided with a second linkage mechanism; The handle is rotatably disposed on the housing, and the handle is connected to the lower bracket via a second linkage mechanism. The handle can drive the right contact to contact the right lower terminal block or the right middle terminal block via the second linkage mechanism and the lower bracket. The first linkage mechanism includes a knob rotatably disposed on the upper bracket. When the knob is rotated to a first position, the handle can drive the left contact to contact the lower left terminal block or the left middle terminal block via the second linkage mechanism, the lower bracket, and the upper bracket. When the knob is rotated to a second position, the handle can drive the left contact to contact the lower left terminal block or the left middle terminal block via the second linkage mechanism, the lower bracket, the upper bracket, and the first linkage mechanism. The first linkage mechanism includes a claw, and the upper bracket is provided with a first mounting portion and a second mounting portion, wherein: the claw is rotatably provided on the first mounting portion; the knob is rotatably provided on the second mounting portion; the handle is provided with a guide overlap portion, the claw is provided with an abutting portion and a limiting groove, and the knob is provided with a limiting portion; when the knob is rotated to the first position, the limiting portion abuts against the abutting portion; when the knob is rotated to the second position, the limiting portion slides into the limiting groove, and the handle is rotated so that the guide overlap portion can abut against the abutting portion; The second linkage mechanism includes a lock buckle and a jump buckle, and a third mounting part and a fourth mounting part are provided on the lower bracket, wherein: the lock buckle can be rotatably provided on the third mounting part and is transmission-connected to the handle; the jump buckle can be rotatably provided on the fourth mounting part, and the jump buckle is provided with an elastomer, and the elastomer is abutted against the shell; the lock buckle is provided with a locking part, and the jump buckle is provided with a locking part, and the locking part can be locked with the locking part.

2. The circuit breaker accessory according to claim 1, characterized in that The knob is provided with a first positioning portion, and the upper bracket is provided with a first positioning slot and a second positioning slot, wherein: The first position slot and the second position slot are both adapted to the first positioning portion; When the knob is rotated to the first position, the first positioning portion slides into the first position slot; When the knob is rotated to the second position, the first positioning portion slides into the second position slot.

3. The circuit breaker accessory according to claim 2, characterized in that: The knob is provided with a driving slot. When an auxiliary tool is inserted into the driving slot and rotated, the knob can be driven to rotate synchronously to adjust the first positioning portion to the first position slot or the second position slot.

4. The circuit breaker accessory according to claim 2, characterized in that: The first linkage mechanism includes a spring, a first connecting portion is provided on the upper bracket, a second connecting portion is provided on the clamping claw, and two ends of the spring are respectively connected to the first connecting portion and the second connecting portion.

5. The circuit breaker accessory according to claim 1, characterized in that: The clamping claw is provided with a second positioning portion, and the upper bracket is provided with a positioning groove. The second positioning portion is adapted to the positioning groove. When the limiting portion slides into the limiting groove, the second positioning portion slides into the positioning groove.

6. The circuit breaker accessory according to claim 1, characterized in that The second linkage mechanism includes a connecting rod, a third connecting portion is provided on the handle, a fourth connecting portion is provided on the lock buckle, and both ends of the connecting rod are rotatably connected to the third connecting portion and the fourth connecting portion respectively.

7. The circuit breaker accessory according to claim 1, characterized in that The circuit breaker accessory includes a test button, which is rotatably arranged on the handle; The test button is provided with a sliding portion, and the sliding portion can slide along the guide overlapping portion.

8. A circuit breaker, characterized in that: The circuit breaker accessory comprises the circuit breaker accessory according to any one of claims 1 to 7.

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