Circuit breaker with protection structure

Abstract

The utility model discloses a circuit breaker with a protection structure, which comprises a shell, a plurality of groups of arc extinguishing columns are fixedly arranged on the upper surface of the shell, and a plurality of groups of porcelain bushings are sleeved on the outer sides of the plurality of groups of arc extinguishing columns; the number of the protection assemblies is multiple, and an opening and closing assembly is arranged between every two adjacent protection assemblies; the auxiliary consignment assembly is movably installed in the shell and composed of a transmission part and a handle, the handle is fixedly connected with the transmission part, the transmission part is in transmission connection with the protection assembly, and therefore the protection assembly is arranged on the upper surface of the shell in a lifting motion mode through the auxiliary consignment assembly. According to the utility model, through the mutual cooperation of the protection assembly and the auxiliary consignment assembly, not only can the porcelain bushing wrapped on the arc extinguishing column on the circuit breaker be rapidly protected, but also the circuit breaker can be conveniently carried by a worker.

Description

Technical Field

[0001] This utility model belongs to the field of circuit breaker technology, and in particular relates to a circuit breaker with a protective structure. Background Technology

[0002] A circuit breaker is an electrical device used to protect circuits from overload and short-circuit damage. Medium-voltage circuit breakers (12~40.5kV) are mainly used in medium-voltage power systems. Medium-voltage circuit breakers come in various insulation types, including air circuit breakers, vacuum circuit breakers, gas circuit breakers, and oil circuit breakers. They are available in both outdoor and indoor types. They are widely used in residential, commercial, utility-scale, and industrial applications.

[0003] However, existing technologies have some problems: medium-voltage circuit breakers used outdoors need to be transported to designated outdoor locations after manufacturing. The porcelain bushings on medium-voltage circuit breakers are prone to breakage and damage during transportation. Traditional methods of using foam enclosures for protection are not easy to install, and the overall protection structure is for single use only and cannot be reused, which cannot meet current needs. Therefore, we propose a circuit breaker with a protective structure. Utility Model Content

[0004] To address the problems existing in the prior art, the purpose of this utility model is to provide a circuit breaker with a protective structure. Through the cooperation of the protective component and the auxiliary transport component, when the circuit breaker needs to be transported, the handle extends. As the handle extends, it drives the transmission component, which in turn drives the protective component, causing the protective component to rise and surround the entire arc-extinguishing column and porcelain bushing, forming a protective structure. After the handle extends, it is convenient for workers to carry the circuit breaker. Therefore, it not only quickly protects the porcelain bushing wrapped on the arc-extinguishing column of the circuit breaker, but also makes it convenient for workers to carry the circuit breaker.

[0005] This utility model is implemented as follows: a circuit breaker with a protective structure includes:

[0006] The housing has multiple sets of arc-extinguishing columns fixedly installed on its upper surface, and multiple sets of ceramic sleeves are fitted on the outer side of each set of arc-extinguishing columns.

[0007] The protective components are provided in multiple sets, and the protective components and the arc-extinguishing columns are arranged in pairs. The protective components are located on the upper surface of the shell, and the arc-extinguishing columns are arranged in a corresponding manner inside the protective components. An opening and closing component is provided between two adjacent sets of protective components.

[0008] An auxiliary transport assembly is movably installed inside the housing. The auxiliary transport assembly consists of a transmission component and a handle. The handle is fixedly connected to the transmission component, and the transmission component is pulsatorically connected to the protective assembly. Thus, the protective assembly is positioned by the auxiliary transport assembly moving up and down on the upper surface of the housing.

[0009] Optionally, the protective component includes a housing and an extension housing, both of which are hollow. The extension housing is slidably installed inside the housing, and a pin hole is provided at the upper outer side of the housing. Another set of pin holes is provided at the lower outer side of the extension housing, and a pin is slidably inserted into both sets of pin holes.

[0010] Optionally, both ends of the upper surface of the extension shell are rotatably connected to arc-shaped frames, and folded cloth is fixedly installed on the side of the two sets of arc-shaped frames that are far apart from each other. The folded cloth is fixedly connected to the periphery of the upper surface of the extension shell, and the opening and closing component is movably connected to the arc-shaped frames.

[0011] Optionally, the transmission component includes multiple sets of toothed plates, with a connecting rod fixedly installed between two adjacent sets of toothed plates. One end of the housing has a movable groove, and the toothed plates are slidably installed inside the movable groove. The upper surface of the housing has multiple sets of grooves, and the arc-extinguishing column is located at the center of the groove. The lower outer end of the storage shell is slidably installed inside the groove. The movable groove communicates with the interior of the multiple sets of grooves. The multiple sets of toothed plates are symmetrically arranged, and a second drive gear is meshed with the upper surface of each set of toothed plates. The second drive gear is rotatably installed inside the movable groove, and a first drive gear is fixedly installed on one side of the second drive gear. The first drive gear is rotatably installed inside the movable groove. Multiple sets of toothed grooves are opened at both ends of the outer side of the storage shell, and the multiple sets of toothed grooves are meshed with the first drive gear. Both sets of toothed plates are fixedly connected to the handle.

[0012] Optionally, the handle consists of a positioning plate and a grip. The grip is located on one side of the positioning plate, and the positioning plate is correspondingly arranged with the movable groove. Extension rods are fixedly installed at both ends of the other side of the positioning plate. Pull rods are fixedly installed at the same end of both sets of toothed plates, and sliding grooves are opened at the same end of both sets of pull rods. One end of the extension rod is slidably installed inside the sliding groove.

[0013] Optionally, guide side plates are provided at both ends of the outer side of the pull rod. The guide side plates are fixedly connected to the positioning plate. A lever is elastically connected to the side of the two sets of guide side plates that are far apart from each other. Both ends of one side of the positioning plate are provided with clearance holes. One end of the lever passes through the clearance hole to the side of the positioning plate. A positioning pin is fixedly installed at one end of the opposite side of the two sets of levers. One end of the positioning pin passes through the guide side plate and the outer side of the pull rod in sequence. A positioning hole is provided at one end of the outer side of the extension rod, and one end of the positioning pin is slidably inserted into the positioning hole.

[0014] Optionally, the opening and closing assembly includes a connecting plate and two sets of transmission rods. Both sets of arc-shaped frames are rotatably connected to the connecting plate, and the two sets of transmission rods are fixedly connected to the two sets of arc-shaped frames respectively. The connecting plate has a rotating hole inside, and both sets of transmission rods are rotatably installed inside the rotating hole. One set of connecting plates has an adjustment mechanism on its upper surface. The upper surface of the housing has multiple sets of storage slots, and the storage slots are located between two adjacent sets of grooves. The storage slots are perpendicularly corresponding to the connecting plate.

[0015] Optionally, the adjusting mechanism includes two sets of transmission gears. One set of connecting plates has an adjusting hole on its upper surface, which communicates with the interior of the rotating hole. The two sets of transmission gears are respectively fixedly sleeved on the outside of the two sets of transmission rods, and the two sets of transmission gears are meshed with each other. Side plates are fixedly installed at both ends of one side of the upper surface of one set of connecting plates. A bidirectional lead screw is rotatably connected between the two sets of side plates. Both ends of the bidirectional lead screw are threadedly connected to clamps. One end of the clamp extends into the interior of the rotating hole and is sleeved on the outside of the transmission rod. A drive rod is fixedly installed at one end of the bidirectional lead screw. One end of the drive rod passes through one set of side plates, and a fastening bolt is threadedly connected to the outer end of the drive rod, so that the drive rod is fixedly installed to one set of side plates by the fastening bolt.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. Through the cooperation of the protective components and the auxiliary transport components, when the circuit breaker needs to be transported, the extended handle drives the transmission components as it extends. The transmission components drive the protective components, causing the protective components to rise and surround the entire arc-extinguishing column and porcelain bushing, forming a protective barrier. After the handle extends, it is convenient for the staff to carry the circuit breaker. Therefore, it can not only quickly protect the porcelain bushing wrapped on the arc-extinguishing column of the circuit breaker, but also make it convenient for the staff to carry the circuit breaker.

[0018] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure provided by this utility model;

[0020] Figure 2 This is a schematic diagram of the ceramic sleeve provided by this utility model;

[0021] Figure 3 This is a schematic diagram of the groove provided by this utility model;

[0022] Figure 4This is a schematic diagram of the transmission component provided by this utility model;

[0023] Figure 5 This is a schematic diagram of the positioning plate provided by this utility model;

[0024] Figure 6 This utility model provides Figure 5 Enlarged view of point A;

[0025] Figure 7 This is a schematic diagram of the protective component provided by this utility model;

[0026] Figure 8 This is a schematic diagram of the opening and closing component provided by this utility model;

[0027] Figure 9 This is a schematic diagram of the housing provided by this utility model;

[0028] Figure 10 This utility model provides Figure 9 Enlarged diagram of point B.

[0029] In the diagram: 1. Shell; 2. Porcelain sleeve; 3. Protective component; 4. Auxiliary transport component; 5. Groove; 6. Storage slot; 7. Pin; 8. Opening and closing component; 9. Arc extinguishing column; 10. Limiting sleeve; 301. Extension shell; 302. Storage shell; 303. Gear groove; 304. Folded fabric; 305. Arc-shaped frame; 401. Transmission component; 4011. First drive gear; 4012. Gear plate; 4013. Connecting rod; 40 14. Second drive gear; 402. Handle; 4021. Pull rod; 4022. Grip; 4023. Positioning plate; 4024. Extension rod; 4025. Positioning pin; 4026. Paddle; 4027. Guide side plate; 801. Connecting plate; 802. Transmission rod; 803. Transmission gear; 804. Side mounting plate; 805. Clamping plate; 806. Drive rod; 807. Fastening bolt; 808. Double-acting lead screw. Detailed Implementation

[0030] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0031] like Figures 1 to 10 As shown in the figure, the circuit breaker with a protective structure provided by this utility model includes: a housing 1, with multiple sets of arc-extinguishing columns 9 fixedly installed on the upper surface of the housing 1, and multiple sets of porcelain sleeves 2 sleeved on the outer side of each set of arc-extinguishing columns 9; a protective component 3, with multiple sets of protective components 3, and the protective components 3 and the arc-extinguishing columns 9 are arranged in pairs. The protective components 3 are arranged on the upper surface of the housing 1, and the arc-extinguishing columns 9 and the interior of the protective components 3 are arranged in a corresponding manner. An opening and closing component 8 is provided between two adjacent sets of protective components 3.

[0032] like Figures 1 to 8 As shown, by designing the arc-extinguishing column 9 and the protective component 3 in a corresponding manner, the protective component 3 can effectively enclose the arc-extinguishing column 9 and the porcelain sleeve 2 on the outside, thereby effectively preventing damage to the porcelain sleeve 2 during the transportation of the circuit breaker.

[0033] The auxiliary transport component 4 is movably installed inside the housing 1. The auxiliary transport component 4 consists of a transmission component 401 and a handle 402. The handle 402 is fixedly connected to the transmission component 401, and the transmission component 401 is connected to the protective component 3. Thus, the protective component 3 is set to move up and down on the upper surface of the housing 1 through the auxiliary transport component 4.

[0034] like Figures 1 to 10 As shown, because the protective component 3 is designed to move up and down on the upper surface of the housing 1 via the auxiliary transport component 4, the protective component 3 can be effectively hidden and stored when it is not raised, avoiding its use when protection is not needed.

[0035] Furthermore, the protective component 3 includes a housing 302 and an extension housing 301. Both the housing 302 and the extension housing 301 are hollow. The extension housing 301 is slidably installed inside the housing 302. A pin hole is opened at the upper outer side of the housing 302, and another set of pin holes is opened at the lower outer side of the extension housing 301. A pin 7 is slidably inserted into both sets of pin holes.

[0036] like Figures 1 to 10 As shown, by means of a design in which two sets of pin holes are slidably inserted with pins 7, after the extension shell 301 slides upward to the desired position, the position of the extension shell 301 can be fixed by the pins 7, thereby preventing the upper end of the extension shell 301 from squeezing the upper end of the arc extinguishing column 9.

[0037] Furthermore, both ends of the upper surface of the extension shell 301 are rotatably connected to arc-shaped frames 305, and folded cloth 304 is fixedly installed on the side of the two sets of arc-shaped frames 305 that are far apart from each other. The folded cloth 304 is fixedly connected to the periphery of the upper surface of the extension shell 301, and the opening and closing component 8 is movably connected to the arc-shaped frame 305.

[0038] like Figures 1 to 10 As shown, the design features two sets of arc-shaped frames 305 with folded cloth 304 fixedly installed on opposite sides. After the two sets of arc-shaped frames 305 are flipped and brought closer together until they are in close contact, the folded cloth 304 is fully unfolded, which can fill the hollow area at the top of the extension shell 301. Therefore, it can better protect the ceramic sleeve 2 and the arc-extinguishing column 9.

[0039] Furthermore, the transmission component 401 includes multiple sets of toothed plates 4012, with connecting rods 4013 fixedly installed between adjacent sets of toothed plates 4012. One end of the housing 1 has a movable groove, and the toothed plates 4012 are slidably installed inside the movable groove. Multiple sets of grooves 5 are opened on the upper surface of the housing 1, and the arc-extinguishing column 9 is located at the center of the groove 5. The lower outer end of the receiving shell 302 is slidably installed inside the groove 5. The movable groove communicates with the interior of the multiple sets of grooves 5. The multiple sets of toothed plates 4012 are symmetrically arranged, and the multiple sets of toothed plates 4012... The upper surface of 012 is meshed with a second drive gear 4014, which is rotatably installed inside the movable slot. A first drive gear 4011 is fixedly installed on one side of the second drive gear 4014, which is rotatably installed inside the movable slot. Multiple sets of toothed grooves 303 are opened at both ends of the outer side of the storage shell 302, and the multiple sets of toothed grooves 303 are meshed with the first drive gear 4011. Two sets of toothed plates 4012 are fixedly connected to the handle 402.

[0040] Through the mutual cooperation of the first drive gear 4011, the second drive gear 4014, and the gear plate 4012, such as Figure 4 As shown, when the two sets of toothed plates 4012 on the far right move in the same direction, the first drive gear 4011 can be controlled by the second drive gear 4014, and the storage shell 302 can be controlled to move up and down inside the groove 5 by the tooth groove 303.

[0041] It should be noted that when the storage shell 302 slides up and down inside the groove 5, it adopts a damped sliding motion, which can prevent the storage shell 302 from being affected by gravity and falling down automatically, causing the toothed plate 4012 to reset and slide.

[0042] Furthermore, the handle 402 consists of a positioning plate 4023 and a grip 4022. The grip 4022 is located on one side of the positioning plate 4023, and the positioning plate 4023 is correspondingly positioned with the movable groove. Extension rods 4024 are fixedly installed at both ends of the other side of the positioning plate 4023. Pull rods 4021 are fixedly installed at the same end of both sets of toothed plates 4012, and sliding grooves are provided at the same end of both sets of pull rods 4021. One end of the extension rod 4024 is slidably installed inside the sliding groove. Guide side plates 4027 are correspondingly provided at both ends of the outer side of the pull rods 4021. 027 is fixedly connected to the positioning plate 4023. The two sets of guide side plates 4027 are elastically connected to the opposite sides of each other with a lever 4026. Both ends of one side of the positioning plate 4023 are provided with clearance holes. One end of the lever 4026 passes through the clearance hole to the side of the positioning plate 4023. One end of the two sets of levers 4026 on opposite sides is fixedly installed with a positioning pin 4025. One end of the positioning pin 4025 passes through the guide side plate 4027 and the outside of the pull rod 4021 in sequence. One end of the extension rod 4024 is provided with a positioning hole, and one end of the positioning pin 4025 is slidably inserted into the positioning hole.

[0043] like Figures 1 to 10 As shown, by sliding one end of the extension rod 4024 inside the sliding groove, the extension rod 4024 can extend outward to achieve a secondary extension of the grip 4022, so that the optimal length of the grip 4022 can be selected according to the user's needs.

[0044] With the design of the pull rod 4021 being fixedly connected to the toothed plate 4012, when the positioning pin 4025 is inserted into the positioning hole, pulling the handle 4022 will cause the pull rod 4021 to move through the positioning plate 4023, thereby enabling the toothed plate 4012 to slide inside the movable groove. As the handle 4022 extends outward, the storage shell 302 moves upward to perform protective work.

[0045] Specifically, such as Figure 9 and Figure 10 As shown, multiple sets of limiting sleeves 10 are fixedly installed inside the movable groove, and the limiting sleeves 10 are slidably sleeved on the outside of the connecting rod 4013. Therefore, it can effectively prevent the toothed plate 4012 from sliding too much and causing it to move away from the second drive gear 4014.

[0046] Furthermore, the opening and closing assembly 8 includes a connecting plate 801 and two sets of transmission rods 802. Both sets of arc-shaped frames 305 are rotatably connected to the connecting plate 801, and the two sets of transmission rods 802 are respectively fixedly connected to the two sets of arc-shaped frames 305. A rotating hole is provided inside the connecting plate 801, and both sets of transmission rods 802 are rotatably installed inside the rotating hole. An adjustment mechanism is provided on the upper surface of one set of connecting plates 801. Multiple sets of storage slots 6 are provided on the upper surface of the housing 1, and the storage slots 6 are located between two adjacent sets of grooves 5. The storage slots 6 are perpendicularly corresponding to the connecting plate 801. The adjustment mechanism includes two sets of transmission gears 803. An adjustment hole is provided on the upper surface of one set of connecting plates 801, and the adjustment hole communicates with the rotating hole. The two sets of transmission gears 803 are respectively fixedly sleeved. Located on the outside of two sets of transmission rods 802, and with two sets of transmission gears 803 meshing with each other, a side plate 804 is fixedly installed at both ends on one side of the upper surface of one set of connecting plates 801. A double-acting screw 808 is rotatably connected between the two sets of side plate 804. A clamping plate 805 is threadedly connected to both ends of the outer side of the double-acting screw 808. One end of the clamping plate 805 extends into the rotating hole and is sleeved on the outside of the transmission rod 802. A drive rod 806 is fixedly installed at one end of the double-acting screw 808. One end of the drive rod 806 passes through one set of side plate 804. A fastening bolt 807 is threadedly connected to one end of the drive rod 806, so that the drive rod 806 is fixedly connected to one set of side plate 804 by the fastening bolt 807.

[0047] like Figures 1 to 10As shown, both ends of the bidirectional lead screw 808 are connected to clamps 805 via threads. When one set of transmission gears 803 is rotated, the two sets of transmission gears 803 rotate relative to each other, driving the transmission rod 802 to rotate. This causes the two sets of arc-shaped frames 305 to move closer together and flip over, allowing the two sets of folded cloths 304 to unfold simultaneously, protecting the arc-extinguishing column 9 and the porcelain sleeve 2. Subsequently, by rotating the drive rod 806, the bidirectional lead screw 808 can be controlled to rotate, causing the two sets of clamps 805 to move closer together and clamp and fix one set of transmission gears 803. This completes the angle fixation of the two sets of arc-shaped frames 305, effectively preventing the folded cloths 304 from resetting during the transportation of the circuit breaker.

[0048] It should be noted that the adjustment mechanism is set on only one set of connecting plates 801 because the arc-shaped frames 305 in the two adjacent sets of protective components 3 can be fixed to each other by the transmission rod 802. Thus, only one set of transmission gears 803 needs to be rotated to realize the rotation of multiple sets of arc-shaped frames 305.

[0049] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A circuit breaker with a protective structure, characterized in that: include: The shell (1) has multiple sets of arc-extinguishing columns (9) fixedly installed on its upper surface, and multiple sets of ceramic sleeves (2) are fitted on the outside of each set of arc-extinguishing columns (9). The protective components (3) are provided in multiple sets, and the protective components (3) and the arc-extinguishing column (9) are arranged in pairs. The protective components (3) are provided on the upper surface of the shell (1), and the arc-extinguishing column (9) and the interior of the protective components (3) are arranged in a corresponding manner. An opening and closing component (8) is provided between two adjacent sets of protective components (3). The auxiliary transport component (4) is movably installed inside the housing (1). The auxiliary transport component (4) consists of a transmission component (401) and a handle (402). The handle (402) is fixedly connected to the transmission component (401), and the transmission component (401) is connected to the protective component (3) in a transmission manner. Thus, the protective component (3) is set to move up and down on the upper surface of the housing (1) through the auxiliary transport component (4).

2. A circuit breaker with a protective structure according to claim 1, characterized in that: The protective component (3) includes a housing (302) and an extension housing (301). Both the housing (302) and the extension housing (301) are hollow. The extension housing (301) is slidably installed inside the housing (302). A pin hole is opened at the upper outer side of the housing (302). Another set of pin holes is opened at the lower outer side of the extension housing (301). A pin (7) is slidably inserted into both sets of pin holes.

3. A circuit breaker with a protective structure according to claim 2, characterized in that: Both ends of the upper surface of the extension shell (301) are rotatably connected to arc-shaped frames (305), and folded cloth (304) is fixedly installed on the side of the two sets of arc-shaped frames (305) that are far apart from each other. The folded cloth (304) is fixedly connected to the periphery of the upper surface of the extension shell (301), and the opening and closing component (8) is movably connected to the arc-shaped frame (305).

4. A circuit breaker with a protective structure according to claim 3, characterized in that: The transmission component (401) includes multiple sets of toothed plates (4012), and a connecting rod (4013) is fixedly installed between two adjacent sets of toothed plates (4012). One end of the housing (1) is provided with a movable groove, and the toothed plates (4012) are slidably installed inside the movable groove. Multiple sets of grooves (5) are provided on the upper surface of the housing (1), and the arc-extinguishing column (9) is located at the center of the groove (5). The lower outer end of the storage shell (302) is slidably installed inside the groove (5). The movable groove communicates with the interior of the multiple sets of grooves (5). The multiple sets of toothed plates (4012) are symmetrically arranged, and the multiple sets of The upper surface of the toothed plate (4012) is meshed with a second drive gear (4014). The second drive gear (4014) is rotatably installed inside the movable slot. A first drive gear (4011) is fixedly installed on one side of the second drive gear (4014). The first drive gear (4011) is rotatably installed inside the movable slot. Multiple sets of toothed grooves (303) are opened at both ends of the outer side of the storage shell (302). The multiple sets of toothed grooves (303) are meshed with the first drive gear (4011). Both sets of toothed plates (4012) are fixedly connected to the handle (402).

5. A circuit breaker with a protective structure according to claim 4, characterized in that: The handle (402) consists of a positioning plate (4023) and a grip (4022). The grip (4022) is located on one side of the positioning plate (4023), and the positioning plate (4023) is correspondingly arranged with the movable groove. Extension rods (4024) are fixedly installed at both ends of the other side of the positioning plate (4023). Pull rods (4021) are fixedly installed at the same end of both sets of toothed plates (4012), and sliding grooves are opened at the same end of both sets of pull rods (4021). One end of the extension rod (4024) is slidably installed inside the sliding groove.

6. A circuit breaker with a protective structure according to claim 5, characterized in that: Guide side plates (4027) are provided at both ends of the outer side of the pull rod (4021). The guide side plates (4027) are fixedly connected to the positioning plate (4023). The two sets of guide side plates (4027) are elastically connected to the opposite sides of each other with a lever (4026). Both ends of one side of the positioning plate (4023) are provided with clearance holes. One end of the lever (4026) passes through the clearance hole to the side of the positioning plate (4023). One end of the two sets of levers (4026) is fixedly installed with a positioning pin (4025) on the opposite side. One end of the positioning pin (4025) passes through the guide side plate (4027) and the outer side of the pull rod (4021) in sequence. One end of the extension rod (4024) is provided with a positioning hole, and one end of the positioning pin (4025) is slidably inserted into the positioning hole.

7. A circuit breaker with a protective structure according to claim 3, characterized in that: The opening and closing assembly (8) includes a connecting plate (801) and two sets of transmission rods (802). Both sets of arc-shaped frames (305) are rotatably connected to the connecting plate (801), and the two sets of transmission rods (802) are fixedly connected to the two sets of arc-shaped frames (305). The connecting plate (801) has a rotating hole inside, and the two sets of transmission rods (802) are rotatably installed inside the rotating hole. An adjustment mechanism is provided on the upper surface of one set of connecting plates (801). Multiple sets of storage slots (6) are provided on the upper surface of the housing (1), and the storage slots (6) are located between two adjacent sets of grooves (5). The storage slots (6) are vertically corresponding to the connecting plate (801).

8. A circuit breaker with a protective structure according to claim 7, characterized in that: The adjusting mechanism includes two sets of transmission gears (803). One set of connecting plates (801) has an adjusting hole on its upper surface, which communicates with the interior of a rotating hole. The two sets of transmission gears (803) are respectively fixedly sleeved on the outside of two sets of transmission rods (802), and the two sets of transmission gears (803) are meshed with each other. Side mounting plates (804) are fixedly installed at both ends of one side of the upper surface of one set of connecting plates (801). A bidirectional lead screw (808) is rotatably connected between the two sets of side mounting plates (804). The outer side of the bidirectional lead screw (808)... Both ends are connected by a clamping plate (805) via threads. One end of the clamping plate (805) extends into the rotating hole and is sleeved on the outside of the transmission rod (802). One end of the bidirectional lead screw (808) is fixedly installed with a drive rod (806). One end of the drive rod (806) passes through one of the side mounting plates (804). The outer end of the drive rod (806) is connected by a fastening bolt (807) via threads. Thus, the drive rod (806) is fixedly set to one of the side mounting plates (804) via the fastening bolt (807).

Images