A circuit breaker support for an electricity metering box

Abstract

The application relates to the technical field of circuit breaker supports, in particular to a circuit breaker support of an electric energy metering box, which comprises a metering box, a door plate, a control structure and a circuit breaker structure, the door plate is hingedly arranged on the metering box, the control structure and the circuit breaker structure are fixedly connected in the metering box, and the control structure and the circuit breaker structure are electrically connected; the control structure performs total circuit breaking control and cuts off the electrical connection between a first female bridge and a first butt joint bus duct through total control; the circuit breaker structure performs partial circuit breaking control, a second female bridge is electrically connected with the first butt joint bus duct, the second female bridge is electrically connected with a circuit breaker component through a second butt joint bus duct, and the circuit breaker component is positioned and installed through a first limiting mechanism and a second limiting mechanism. Through the structural arrangement, the modularized and rapid installation work of the circuit breaker is facilitated.

Description

Technical Field

[0001] This invention relates to the field of circuit breaker support technology, specifically a circuit breaker support for an electricity metering box. Background Technology

[0002] Circuit breakers, as core control and protection devices in power systems, are widely used in various scenarios such as industrial production, commercial buildings, substations, and residential power distribution. Their main function is to control the on / off state of the circuit during normal operation and to quickly disconnect the faulty power supply in case of overload, short circuit, leakage, or other abnormal conditions, preventing the accident from escalating and ensuring personal safety and equipment integrity. Circuit breaker brackets, as key supporting components, play a crucial role in fixing the circuit breaker body, supporting internal functional modules (such as residual current devices, circuit boards, and current transformers), achieving insulation isolation, and ensuring circuit neatness. Their structural rationality, installation stability, and performance reliability directly determine the operating accuracy and service life of the circuit breaker, and are an important foundation for ensuring the safe and stable operation of the power system.

[0003] Currently, the circuit breaker brackets of existing power metering boxes cannot be quickly positioned and installed, and need to be connected and fixed with screws, which is inconvenient for quick fixing and docking work, and also inconvenient for subsequent disassembly and repair work. Summary of the Invention

[0004] To address the problems in the prior art, the present invention provides a circuit breaker bracket for an electricity metering box.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a circuit breaker bracket for an electricity metering box, including a metering box, a door panel, a control structure and a circuit breaker structure. The door panel is hinged on the metering box, and the control structure and the circuit breaker structure are fixedly connected inside the metering box. The control structure and the circuit breaker structure are electrically connected.

[0006] The control structure performs overall circuit breaker control, cutting off the electrical connection between the first busbar and the first docking busbar through the main control switch;

[0007] The circuit breaker structure is used for circuit breaking control. The second busbar is electrically connected to the first docking busbar, and the second busbar is electrically connected to the circuit breaker components through the second docking busbar. The circuit breaker components are positioned and installed through the first limit mechanism and the second limit mechanism.

[0008] Specifically, the circuit breaker component includes a first limiting mechanism and a second limiting mechanism. The first limiting mechanism and the second limiting mechanism are engaged and limited. The first limiting mechanism includes a docking unit and an adjustment and fixing unit. The adjustment and fixing unit is hinged on the docking unit, and the position of the positioning point is adjusted by adjusting the adjustment and fixing unit.

[0009] Specifically, the docking unit includes a connecting frame, on which a circuit breaker is fixedly snapped, and a support frame is provided at the side end of the connecting frame. A rotating eccentric disc is rotatably provided on the support frame for pressing the hydraulic rod. A hydraulic rod is slidably provided on the connecting frame and is connected to an insulated hydraulic guide seat. The hydraulic pressure controls the extension and retraction of the positioning pin on the connecting plug. The connecting plug is fixedly connected to the insulated hydraulic guide seat. A circuit breaker connecting end frame is provided at the center of the insulated hydraulic guide seat and is electrically connected to the circuit breaker.

[0010] Specifically, the adjustment and fixing unit includes a fixed mounting frame, an adjusting rod is elastically connected to the fixed mounting frame via a spring, a spring guide rod is hinged to the side end of the fixed mounting frame, the lower end of the spring guide rod is hinged to the hinge rod, the rear end of the adjusting rod is fixed to the connecting plate and the docking pin, and the docking pin has a groove.

[0011] Specifically, the second limiting mechanism includes a handle, a lifting frame fixedly connected to the side of the handle, a tapered guide fixedly connected to the side of the lifting frame, the tapered guide adopts a double tapered structure, the side of the tapered guide is elastically telescopically connected to the docking connecting seat, a telescopic spring rod is fixedly provided inside the docking connecting seat, a positioning insert is elastically connected to the telescopic spring rod, a connecting guide is fixedly connected to the side of the positioning insert, and a connecting busbar groove is electrically connected to the side of the docking connecting seat.

[0012] Specifically, the docking connector is electrically connected to the second docking busbar through the connecting busbar groove. There are four telescopic spring rods, connecting guides, and positioning pins. The connecting guides contact and press with the tapered guides to control the position of the positioning pins.

[0013] Specifically, the positioning pin is inserted into and limited by the docking pin, the center of the docking connector is inserted into the docking pin, the side end of the docking connector is adapted to be inserted into the connecting block, and the connecting block is positioned by the positioning pin and the internal groove of the docking connector.

[0014] Specifically, the circuit breaker connection end bracket is fixedly inserted into the center position of the docking and connecting seat, the hinge rod is fixedly connected to the frame, and the connection frame is provided with a sliding groove for the fixed installation of the housing frame.

[0015] Specifically, the first and second mother bridges are fixedly connected to the inner end of the metering box. The adjusting rod changes the position of the connecting plate and the docking pin by extending and retracting, so that the docking pin is inserted into the side end of the docking communication seat.

[0016] Specifically, the handle changes the position of the tapered guide and the lifting frame by pulling it out, thereby changing the connection position between the positioning pin and the docking pin. The eccentric rotating disc compresses the hydraulic rod by rotating it, keeping the hydraulic rod in a compressed state.

[0017] The beneficial effects of this invention are:

[0018] First, this invention performs overall control through the configuration of a control structure. The first busbar is connected to the first docking busbar trunking and is also electrically connected to the main control switch via a docking seat. By closing the main control switch, the circuit breaker structure's operation is controlled. The second busbar within the circuit breaker structure is electrically connected to the control structure and then connected to multiple circuit breaker components via the second docking busbar trunking, achieving multi-stage electrical control. The circuit breaker components are docked and installed through a combination of a first limit mechanism and a second limit mechanism. The second limit mechanism is integrated with the metering box, while the first limit mechanism facilitates quick docking and fixing with the second limit mechanism, enabling installation.

[0019] Second, the present invention, through the setting of the first limiting mechanism, can make the connecting plug block dock with the docking communication seat through the positioning pin by pressing the hydraulic rod. At the same time, the circuit breaker connecting end frame is electrically connected to the docking communication seat. The adjustment rod at the side end can insert the docking pin rod into the docking communication seat by controlling the docking pin rod, and perform the limiting pin connection through the positioning plug shaft, thereby realizing the alignment installation work, achieving the positioning installation purpose of the circuit breaker, and facilitating modular installation and fixing. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a three-dimensional structural diagram of the main body from a frontal perspective in this invention;

[0022] Figure 2 This is a split view of the main body of the present invention;

[0023] Figure 3 This is a perspective view of the control structure in this invention;

[0024] Figure 4 This is a perspective view of the circuit breaker structure of the present invention;

[0025] Figure 5 This is a perspective view of the circuit breaker component of the present invention;

[0026] Figure 6 This is a perspective view of the first limiting mechanism in this invention;

[0027] Figure 7 This is a three-dimensional structural diagram of the docking unit in this invention;

[0028] Figure 8 This is a three-dimensional side view of the docking unit in this invention;

[0029] Figure 9 This is a perspective view of the adjusting and fixing unit in this invention;

[0030] Figure 10 This is a three-dimensional exploded view of the second limiting mechanism in this invention.

[0031] In the diagram: 1-Metering box, 2-Door panel, 3-Control structure, 4-Circuit breaker structure, 5-First busbar tray, 6-Dating seat, 7-Main control switch, 8-First docking busbar trunking, 9-Second busbar tray, 10-Circuit breaker components, 11-Second docking busbar trunking, 12-First limit mechanism, 13-Second limit mechanism, 14-Dating unit, 15-Adjustment and fixing unit, 16-Connecting frame, 17-Circuit breaker, 18-Hydraulic rod, 19-Turning eccentric disc, 2 0-Support frame, 21-Insulated hydraulic guide seat, 22-Connecting plug, 23-Positioning pin, 24-Circuit breaker connection end frame, 25-Fixed mounting shell frame, 26-Spring, 27-Adjusting rod, 28-Hinged rod, 29-Spring guide rod, 30-Connecting disc, 31-Dating pin rod, 32-Dating connecting seat, 33-Connecting busbar trunking, 34-Telescopic spring rod, 35-Connecting guide frame, 36-Positioning plug shaft, 37-Conical guide frame, 38-Lifting frame, 39-Handle. Detailed Implementation

[0032] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0033] The invention will be further described below with reference to the accompanying drawings.

[0034] Example

[0035] like Figure 1-10 As shown, a circuit breaker bracket for an electricity metering box according to the present invention includes a metering box 1, a door panel 2, a control structure 3 and a circuit breaker structure 4. The door panel 2 is hinged to the metering box 1, and the control structure 3 and the circuit breaker structure 4 are fixedly connected inside the metering box 1. The control structure 3 and the circuit breaker structure 4 are electrically connected.

[0036] Control structure 3 performs overall circuit breaker control, and cuts off the electrical connection between the first busbar bridge 5 and the first docking busbar trunking 8 through the main control switch 7;

[0037] The circuit breaker structure 4 is used for circuit breaking control. The second busbar 9 is electrically connected to the first docking busbar 8, and the second busbar 9 is electrically connected to the circuit breaker component 10 through the second docking busbar 11. The circuit breaker component 10 is used to position and install the circuit breaker 17 through the first limiting mechanism 12 and the second limiting mechanism 13.

[0038] Circuit breaker component 10 includes a first limiting mechanism 12 and a second limiting mechanism 13. The first limiting mechanism 12 and the second limiting mechanism 13 are engaged and limited. The first limiting mechanism 12 includes a docking unit 14 and an adjustment and fixing unit 15. The adjustment and fixing unit 15 is hinged to the docking unit 14. The position of the positioning point is adjusted by adjusting the fixing unit 15. The overall control operation is performed by setting the control structure 3. The first busbar 5 is connected to the first docking busbar 8. The first busbar 5 is also electrically connected to the main control switch 7 through the docking seat 6. The closing of the control gate 7 enables the operation control of the circuit breaker structure 4. The second busbar 9 inside the circuit breaker structure 4 is electrically connected to the control structure 3, and then connected to multiple circuit breaker components 10 through the second docking busbar 11 to achieve multi-stage electrical control. The circuit breaker components 10 are connected and installed by the combination of the first limit mechanism 12 and the second limit mechanism 13. The second limit mechanism 13 is integrated with the metering box 1, and the setting of the first limit mechanism 12 facilitates quick docking and fixing with the second limit mechanism 13 to achieve the installation work.

[0039] The docking unit 14 includes a connecting frame 16, on which a circuit breaker 17 is fixedly attached. A support frame 20 is provided on the side of the connecting frame 16, and a rotating eccentric disc 19 is rotatably provided on the support frame 20. The rotating eccentric disc 19 is used for pressing the hydraulic rod 18. The hydraulic rod 18 is slidably provided on the connecting frame 16. The hydraulic rod 18 is connected to the insulated hydraulic guide seat 21. The positioning pin 23 is extended and retracted on the connecting plug 22 by hydraulic pressure control. The connecting plug 22 is fixedly connected to the insulated hydraulic guide seat 21. A circuit breaker connecting end frame 24 is provided at the center of the insulated hydraulic guide seat 21. The circuit breaker connecting end frame 24 is electrically connected to the circuit breaker 17.

[0040] The adjusting and fixing unit 15 includes a fixed mounting frame 25. An adjusting rod 27 is elastically and telescopically connected to the fixed mounting frame 25 via a spring 26. A spring guide rod 29 is hinged to the side end of the fixed mounting frame 25. The lower end of the spring guide rod 29 is hinged to a hinge rod 28. The rear end of the adjusting rod 27 is fixed to a connecting disc 30 and a mating pin 31. A groove is provided on the mating pin 31. The spring guide rod 29 facilitates adjustment of the position of the fixed mounting frame 25. The user can press the fixed mounting frame 25 to adjust its position. 25 slides on the connecting frame 16 to facilitate the alignment and installation of the docking pin 31 and the docking connecting seat 32. Then, the eccentric plate 19 is turned so that it locks the hydraulic rod 18 to prevent it from resetting. This completes the installation of the first limit mechanism 12 and the second limit mechanism 13. The eccentric plate 19 is also connected to the docking connecting seat 32 through the circuit breaker 17 and the circuit breaker connecting end frame 24. At the same time, the docking connecting seat 32 is electrically connected to the second docking busbar 11 through the connecting busbar 33 to realize the circuit connection control.

[0041] The second limiting mechanism 13 includes a handle 39, a lifting frame 38 fixedly connected to the side of the handle 39, and a conical guide 37 fixedly connected to the side of the lifting frame 38. The conical guide 37 adopts a double-conical structure. The side of the conical guide 37 is elastically telescopically connected to the docking communication seat 32. A telescopic spring rod 34 is fixedly installed inside the docking communication seat 32. A positioning insert 36 is elastically connected to the telescopic spring rod 34. A connecting guide 35 is fixedly connected to the side of the positioning insert 36. A connecting busbar 33 is electrically connected to the side of the docking communication seat 32 to fix the metering box 1. A door panel 2 is hinged on the metering box 1 for easy control. The installation and maintenance of structure 3 and circuit breaker structure 4 are carried out. The main control switch 7 in control structure 3 is electrically connected to the first busbar 5 through docking seat 6. The first busbar 5 is electrically connected to the second busbar 9 through the first docking busbar trough 8, thereby controlling the electrical connection of the second busbar 9 and realizing the overall circuit breaking control. The second busbar 9 is also electrically connected to the circuit breaker component 10 through the second docking busbar trough 11 to realize the electrical control of the branch circuits. The docking connection seat 32 is fixed to the metering box 1, which is an integrated set. When installing, the user only needs to dock the second limit mechanism 13 and the docking unit 14 to connect. A circuit breaker 17 is fixedly mounted on frame 16. The second limiting mechanism 13 and the docking unit 14 are aligned. At this time, the circuit breaker connecting end frame 24 is inserted into the center of the docking connecting seat 32, the docking pin 31 is aligned with the side end groove of the docking connecting seat 32, and the connecting block 22 is also inserted into the grooves on both sides of the center of the docking connecting seat 32. Pressing the hydraulic rod 18 causes the hydraulic rod 18 to control the oil pressure change in the insulating hydraulic guide seat 21, causing the positioning pin 23 to extend on the connecting block 22. The positioning pin 23 is inserted into the docking connecting seat 32 for positioning. At the same time, the handle 39 is pulled to change the position of the lifting frame 38 and the conical guide frame 37, so that the conical guide frame 37 is pulled. The protruding part of the tapered guide 37 compresses the connecting guide 35, changing the position of the positioning pin 36 on the telescopic spring rod 34, causing the positioning pin 36 to move upward. At this time, the docking pin 31 can be inserted into the groove of the docking connecting seat 32. Then, press the adjusting rod 27, causing the adjusting rod 27 to elastically contract on the spring 26, changing the position of the connecting disc 30 and the docking pin 31, so that the docking pin 31 is inserted into the docking connecting seat 32. Then, the tapered guide 37, the lifting frame 38, and the handle 39 can be controlled to return to their original positions by the built-in spring. At this time, the positioning pin 36 is inserted into the groove of the docking pin 31 for positioning and fixation.

[0042] The docking connector 32 is electrically connected to the second docking busbar 11 via the connecting busbar 33. Four telescopic spring rods 34, connecting guides 35, and positioning pins 36 are provided. The connecting guides 35 and the tapered guides 37 contact and press to control the position of the positioning pins 36. Through the setting of the first limiting mechanism 12, the connecting block 22 can be docked and limited with the docking connector 32 via the positioning pin 23 by pressing the hydraulic rod 18. At the same time, it is electrically connected to the docking connector 32 via the circuit breaker connecting end frame 24. The adjusting rod 27 at the side can insert the docking pin 31 into the docking connector 32 by controlling the docking pin 31, and limit the pin connection via the positioning pin 36, thereby realizing the alignment and installation work, achieving the positioning and installation purpose of the circuit breaker, and facilitating modular installation and fixing.

[0043] The positioning pin 36 is inserted and limited to the docking pin 31. The center of the docking connecting seat 32 is inserted with the docking pin 31. The side end of the docking connecting seat 32 is adapted to be inserted with the connecting block 22. The connecting block 22 is positioned and set with the internal groove of the docking connecting seat 32 by the positioning pin 23.

[0044] The circuit breaker connection end bracket 24 is fixedly inserted into the center of the docking and connecting seat 32, and the hinge rod 28 is fixedly connected to the frame 16. The connecting frame 16 is provided with a sliding groove for the fixed installation of the housing 25 to move.

[0045] The first mother cable tray 5 and the second mother cable tray 9 are fixedly connected to the inner end of the metering box 1. The adjusting rod 27 changes the position of the connecting plate 30 and the docking pin 31 by telescoping, so that the docking pin 31 is inserted into the side end of the docking connecting seat 32.

[0046] By pulling the handle 39, the positions of the tapered guide 37 and the lifting bracket 38 are changed, thereby changing the connection position between the positioning insert shaft 36 and the docking pin 31. By turning the eccentric disc 19, the hydraulic rod 18 is compressed, so that the hydraulic rod 18 is kept in a compressed state.

[0047] The working principle is as follows: During use, the metering box 1 is fixed. A hinged door panel 2 is installed on the metering box 1 to facilitate the installation and maintenance of the control structure 3 and the circuit breaker structure 4. The main control switch 7 within the control structure 3 is electrically connected to the first busbar 5 via a docking seat 6. The first busbar 5 is electrically connected to the second busbar 9 via a first docking busbar trough 8, thereby controlling the electrical connection of the second busbar 9 and achieving overall circuit breaking control. The second busbar 9 is also electrically connected to the circuit breaker component 10 via a second docking busbar trough 11, achieving electrical control of the branch circuits. The docking connection seat 32 is fixed to the metering box 1, forming an integrated unit. During installation, the user only needs to... The second limiting mechanism 13 and the docking unit 14 are docked and installed. The circuit breaker 17 is fixedly installed on the connecting frame 16. The second limiting mechanism 13 and the docking unit 14 are aligned. At this time, the circuit breaker connecting end frame 24 is inserted into the center of the docking connecting seat 32, the docking pin 31 is aligned with the side end groove of the docking connecting seat 32, and the connecting block 22 is also inserted into the grooves on both sides of the center of the docking connecting seat 32. The hydraulic rod 18 is pressed, so that the hydraulic rod 18 controls the oil pressure change in the insulating hydraulic guide seat 21, so that the positioning pin 23 extends on the connecting block 22 and is inserted into the docking connecting seat 32 for positioning. At the same time, the handle 39 is pulled to change the lifting frame 38 and the tapered guide frame 3. Position 7 causes the conical guide 37 to protrude and compress the connecting guide 35, changing the position of the positioning pin 36 on the telescopic spring rod 34, causing the positioning pin 36 to move upward. At this time, the docking pin 31 can be inserted into the groove of the docking connecting seat 32. Then, pressing the adjusting rod 27 causes the adjusting rod 27 to elastically contract on the spring 26, changing the position of the connecting disc 30 and the docking pin 31, so that the docking pin 31 is inserted into the docking connecting seat 32. Then, the conical guide 37, the lifting frame 38, and the handle 39 can be controlled to return to their original positions by the built-in spring. At this time, the positioning pin 36 is inserted into the groove of the docking pin 31 for positioning and fixation. The spring guide rod 29 is designed... The position of the fixed mounting frame 25 is easily adjusted. The user can press the fixed mounting frame 25 to slide it on the connecting frame 16, which facilitates the alignment and installation of the docking pin 31 and the docking connecting seat 32. Then, the eccentric plate 19 is turned so that it locks the hydraulic rod 18 and prevents the hydraulic rod 18 from resetting. This completes the installation of the first limit mechanism 12 and the second limit mechanism 13. The docking connecting seat 32 is also connected to the circuit breaker 17 and the circuit breaker connecting end frame 24. At the same time, the docking connecting seat 32 is electrically connected to the second docking busbar 11 through the connecting busbar 33 to realize the circuit connection control.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A circuit breaker bracket for an electricity metering box, characterized in that: It includes a metering box (1), a door panel (2), a control structure (3) and a circuit breaker structure (4). The door panel (2) is hinged on the metering box (1). The control structure (3) and the circuit breaker structure (4) are fixedly connected inside the metering box (1). The control structure (3) and the circuit breaker structure (4) are electrically connected. The control structure (3) performs a total circuit breaker control and cuts off the electrical connection between the first busbar (5) and the first docking busbar (8) through the main control gate (7); The circuit breaker structure (4) is used for circuit breaking control. The second busbar (9) is electrically connected to the first docking busbar (8), and the second busbar (9) is electrically connected to the circuit breaker component (10) through the second docking busbar (11). The circuit breaker component (10) is positioned and installed by the first limiting mechanism (12) and the second limiting mechanism (13).

2. The circuit breaker bracket for an electricity metering box according to claim 1, characterized in that: The circuit breaker component (10) includes a first limiting mechanism (12) and a second limiting mechanism (13). The first limiting mechanism (12) and the second limiting mechanism (13) are engaged and limited. The first limiting mechanism (12) includes a docking unit (14) and an adjustment and fixing unit (15). The adjustment and fixing unit (15) is hinged on the docking unit (14) and the position of the positioning point is adjusted by adjusting the fixing unit (15).

3. The circuit breaker bracket for an electricity metering box according to claim 2, characterized in that: The docking unit (14) includes a connecting frame (16), on which a circuit breaker (17) is fixedly attached. A support frame (20) is provided on the side of the connecting frame (16), and a rotating eccentric disc (19) is rotatably provided on the support frame (20). The rotating eccentric disc (19) is used for pressing the hydraulic rod (18). A hydraulic rod (18) is slidably provided on the connecting frame (16). The hydraulic rod (18) is connected to the insulating hydraulic guide seat (21). The positioning pin (23) is extended and retracted on the connecting plug (22) by hydraulic pressure control. The connecting plug (22) is fixedly connected to the insulating hydraulic guide seat (21). A circuit breaker connecting end frame (24) is provided at the center of the insulating hydraulic guide seat (21). The circuit breaker connecting end frame (24) is electrically connected to the circuit breaker (17).

4. The circuit breaker bracket for an electricity metering box according to claim 3, characterized in that: The adjustment and fixing unit (15) includes a fixed mounting frame (25). An adjusting rod (27) is elastically telescopically connected to the fixed mounting frame (25) via a spring (26). A spring guide rod (29) is hinged to the side end of the fixed mounting frame (25). The lower end of the spring guide rod (29) is hinged to the hinge rod (28). The rear end of the adjusting rod (27) is fixed to the connecting plate (30) and the docking pin (31). A groove is provided on the docking pin (31).

5. The circuit breaker bracket for an electricity metering box according to claim 4, characterized in that: The second limiting mechanism (13) includes a handle (39), a lifting frame (38) is fixedly connected to the side of the handle (39), a conical guide frame (37) is fixedly connected to the side of the lifting frame (38), the conical guide frame (37) adopts a double conical structure, the side of the conical guide frame (37) is elastically telescopically connected to the docking communication seat (32), a telescopic spring rod (34) is fixedly provided inside the docking communication seat (32), a positioning insert shaft (36) is elastically connected to the telescopic spring rod (34), a connecting guide frame (35) is fixedly connected to the side of the positioning insert shaft (36), and a connecting busbar groove (33) is electrically connected to the side of the docking communication seat (32).

6. The circuit breaker bracket for an electricity metering box according to claim 5, characterized in that: The docking connector (32) is electrically connected to the second docking busbar (11) through the connecting busbar groove (33). There are four telescopic spring rods (34), connecting guides (35), and positioning pins (36). The connecting guides (35) and the tapered guides (37) are in contact and squeezed to control the position of the positioning pins (36).

7. The circuit breaker bracket for an electricity metering box according to claim 6, characterized in that: The positioning pin (36) is inserted and limited to the docking pin (31). The center of the docking connector (32) is inserted to the docking pin (31). The side end of the docking connector (32) is adapted to be inserted to the connecting block (22). The connecting block (22) is positioned to the internal groove of the docking connector (32) by the positioning pin (23).

8. The circuit breaker bracket for an electricity metering box according to claim 7, characterized in that: The circuit breaker connection end bracket (24) is fixedly inserted into the center of the docking connection seat (32), and the hinge rod (28) is fixedly connected to the frame (16). The connection frame (16) is provided with a sliding groove for the fixed installation shell (25) to move.

9. The circuit breaker bracket for an electricity metering box according to claim 8, characterized in that: The first mother bridge (5) and the second mother bridge (9) are fixedly connected to the inner end of the metering box (1). The adjusting rod (27) changes the position of the connecting plate (30) and the docking pin (31) by extension and retraction, so that the docking pin (31) is inserted into the side end of the docking communication seat (32).

10. A circuit breaker bracket for an electricity metering box according to claim 9, characterized in that: The handle (39) changes the position of the tapered guide (37) and the lifting frame (38) by pulling, thereby changing the connection position of the positioning insert shaft (36) with the docking pin (31). The rotating eccentric disc (19) squeezes the hydraulic rod (18) by rotating, so that the hydraulic rod (18) remains in a squeezed state.

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