Electrical tripping device

Abstract

The utility model relates to the technical field of electrical equipment protection, in particular to an electrical tripping device, which comprises a shell, a protective cover, a circuit breaker, a clamping sleeve, a shunt tripping device, a clamping block, a limiting piece and the like. A protective cover is hinged to the front portion in the shell, a circuit breaker is loaded in the shell, clamping sleeves are arranged on the two sides of the circuit breaker, a shunt release is clamped to one side of the circuit breaker, the shunt release and the circuit breaker are in a compact state, clamping blocks are arranged on the two sides of the shunt release, the clamping blocks on the two sides are clamped in the corresponding clamping sleeves, and limiting pieces are arranged at the two ends of the outer portion of the circuit breaker. And wedge-shaped parts are arranged at the end parts of the two limiting pieces. According to the utility model, through cooperation of the wedge-shaped block and the limiting piece, the shunt release is simpler and faster to disassemble and assemble; and flexible installation of the device can be realized through a separable sliding rail or a clamping group formed by combining a clamping plate, an abutting plate and the like, so that the device can adapt to different installation environments.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment protection technology, and in particular to an electrical tripping device. Background Technology

[0002] Electrical tripping refers to the process in an electrical system where a protective device (such as a circuit breaker) automatically disconnects the circuit when an overload, short circuit, or other abnormal condition occurs. This process is to prevent damage to electrical equipment or lines, fires, or other safety hazards caused by excessive current.

[0003] Common circuit breakers and tripping devices are typically tightly integrated into a compact housing. This design aims primarily to improve safety, reliability, and protection levels. However, this also presents challenges for maintenance, especially when replacing or inspecting the tripping device. Due to the limited internal space, disassembly and reinstallation become difficult. Furthermore, the compact design makes it easy for inexperienced operators to damage the wiring during disassembly, leading to operational failures.

[0004] Therefore, an easily detachable electrical tripping device was specially designed. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, the present invention provides an easily detachable electrical tripping device.

[0006] An electrical tripping device includes a housing, a protective cover, a circuit breaker, a retaining sleeve, a shunt trip unit, a retaining block, a limiting element, a guide plate, a return spring, a pull rod, and a wedge block. The protective cover is hinged to the front of the housing, and the circuit breaker is installed inside the housing. Retaining sleeves are provided on both sides of the circuit breaker, and a shunt trip unit is clamped to one side of the circuit breaker, with both in a compact state. Retaining blocks are provided on both sides of the shunt trip unit, and the retaining blocks on both sides are clamped into the corresponding retaining sleeves. Limiting elements are provided at both ends of the circuit breaker, and the ends of the limiting elements at both locations are provided with wedge-shaped portions. Guide plates are provided on both sides of the shunt trip unit, and the guide plates at both locations correspond to the lower parts of the adjacent retaining blocks. Wedge blocks are slidably provided on both guide plates at both locations, and the wedge blocks at both locations abut against the wedge-shaped portions of the corresponding limiting elements. A return spring is provided between the bottom of each wedge block and the end face of the shunt trip unit, and a pull rod is provided on the outside of each wedge block.

[0007] As a further preferred embodiment, it also includes a slide rail, a backing plate, a guide rail, a clamping plate, a mounting component, and a screw. The slide rail is embedded and slidably arranged in the rear part of the housing. A backing plate is fixedly arranged at the bottom of the slide rail. Guide rails are arranged on both sides of the slide rail. A clamping plate is slidably arranged between the two guide rails. The clamping plate and the backing plate are in a relative state. A mounting component is arranged on the top of the slide rail. A screw is threaded through the mounting component. The bottom of the screw is connected to the top of the clamping plate.

[0008] As a further preferred option, an adjustment block is provided at the top of the screw.

[0009] As a further preferred option, anti-slip grooves are provided on the opposite sides of both the clamping plate and the backing plate.

[0010] As a further preferred option, when the screw rotates, it moves linearly in the direction of the thread within the mounting component, thereby causing the clamping plate to move closer to or away from the abutment plate.

[0011] As a further preferred embodiment, when the wedge block is pressed and slids down along the guide plate, the return spring is compressed, and the wedge block is no longer held in place by the end of the limiting member.

[0012] The present invention has the following advantages: the combination of wedge blocks and limiting parts makes the disassembly and assembly of the shunt trip device simpler and faster; the use of separable slide rails, or clamping groups composed of clamping plates and abutments, enables flexible installation of the device, making the device adaptable to different installation environments. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a three-dimensional structural diagram of the components of this utility model, including the circuit breaker, the sleeve, and the shunt trip unit.

[0015] Figure 3 This is a three-dimensional structural diagram of the guide plate, pull rod, and return spring of this utility model.

[0016] Figure 4 This is a three-dimensional structural diagram of the slide rail, backing plate, and guide rail components of this utility model.

[0017] In the attached diagram, the following are the reference numerals: 1-outer shell, 2-protective cover, 3-circuit breaker, 4-clamping sleeve, 5-shunt trip unit, 6-clamping block, 7-limiting component, 8-guide plate, 9-reset spring, 10-pull rod, 11-wedge block, 12-slide rail, 13-butt plate, 14-guide rail, 15-clamping plate, 16-mounting component, 17-screw. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Example: An electrical tripping device, such as Figures 1-4As shown, the circuit breaker includes a housing 1, a protective cover 2, a circuit breaker 3, a retaining sleeve 4, a shunt trip unit 5, a retaining block 6, a limiting member 7, a guide plate 8, a return spring 9, a pull rod 10, and a wedge block 11. The protective cover 2 is hinged to the front of the housing 1. The circuit breaker 3 is installed inside the housing 1. Retaining sleeves 4 are provided on both sides of the circuit breaker 3. The shunt trip unit 5 is engaged on the left side of the circuit breaker 3. The circuit breaker 3 and the shunt trip unit 5 are in a compact state, but not completely connected; rather, they are in a contact-type compact state. Retaining blocks 6 are provided on both the upper and lower sides of the shunt trip unit 5, and both retaining blocks 6 are engaged within the corresponding retaining sleeves 4. After the retaining blocks 6 and retaining sleeves 4 are engaged, the circuit breaker 3 and the shunt trip unit 5 are further secured. Limiting members 7 are provided at both the upper and lower ends of the circuit breaker 3. The ends of the limiting members 7 at both locations have wedge-shaped portions that engage with the limiting members 7 in a contact-type manner. In the subsequent locking state of circuit breaker 3 and shunt trip unit 5, symmetrical guide plates 8 are provided on the upper and lower sides of the shunt trip unit 5. The two guide plates 8 are respectively located below the adjacent locking blocks 6. Wedge blocks 11 are slidably provided on the two guide plates 8. The wedge blocks 11 slide through the guide plates 8 as a guide path. The two wedge blocks 11 abut against the wedge-shaped part of the corresponding limiting member 7. A return spring 9 is provided between the bottom of each wedge block 11 and the end face of the shunt trip unit 5. The return spring 9 provides a return force to assist the abutment of circuit breaker 3 and shunt trip unit 5. The two wedge blocks 11 are provided with pull rods 10 on the outside. The pull rods 10 are used to assist the pressing of the wedge blocks 11. When the wedge blocks 11 are pressed and slide down the guide plates 8, the return spring 9 is compressed by force, and the wedge blocks 11 are no longer abutted by the end of the limiting member 7.

[0020] like Figure 4 As shown, it also includes a slide rail 12, a backing plate 13, a guide rail 14, a clamping plate 15, a mounting piece 16, and a screw 17. The slide rail 12 is embedded and slidably arranged in the rear part of the housing 1. The backing plate 13 is fixedly arranged at the bottom of the slide rail 12. The guide rails 14 are arranged on both the left and right sides of the slide rail 12. The clamping plate 15 is slidably arranged between the two guide rails 14. The clamping plate 15 and the backing plate 13 are in an up-down relative state. The mounting piece 16 is arranged on the top of the slide rail 12. Anti-slip grooves are opened in the opposite side of the clamping plate 15 and the backing plate 13. The anti-slip grooves can improve the stability of clamping. The screw 17 is threaded through the mounting piece 16. The top of the screw 17 is provided with an adjustment block. The bottom of the screw 17 is connected to the top of the clamping plate 15. When the screw 17 rotates, it moves linearly in the direction of the thread in the mounting piece 16, thereby driving the clamping plate 15 to move closer to or away from the backing plate 13, thereby realizing the clamping process.

[0021] During disassembly, first ensure that circuit breaker 3 is de-energized and take necessary safety measures, such as locking / tag-out (LOTO) procedures, to prevent accidental re-closing. Prepare the necessary tools, such as screwdrivers and wrenches. Open the protective cover 2 at the front of the housing 1, press the wedge block 11, and let it slide down along the guide plate 8. At this time, the wedge block 11 will press the return spring 9, causing the return spring 9 to be compressed. When the wedge block 11 slides down to no longer contact the wedge-shaped part of the limit member 7, the limit member 7 no longer fixes the shunt trip unit 5. Since the limit member 7 no longer fixes the shunt trip unit 5, the shunt trip unit 5 can now be easily pulled out. During the pulling process... The tightening sleeve 4 eventually separates from the clamping block 6. If installation space needs to be saved, the adjusting block at the top of the screw 17 is rotated to move the screw 17 downward, thereby pushing the clamping plate 15 away from the abutment plate 13. After the clamping plate 15 moves away from the abutment plate 13, the gap between the clamping plate 15 and the abutment plate 13 is aligned with the mounting beam, thus enabling the entire device to be installed independently. If the device needs to be installed through a sealed cabinet, the slide rail 12 can be pulled out from the outer casing 1, so that the components on the slide rail 12 are simultaneously pulled down, and then the device can be sealed and installed. If a new shunt trip unit 5 is to be installed, the above reverse steps are repeated.

[0022] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An electrical tripping device, comprising a housing (1), a protective cover (2), a circuit breaker (3), a retaining sleeve (4), and a shunt trip unit (5), wherein the protective cover (2) is hinged to the front of the housing (1), the circuit breaker (3) is installed inside the housing (1), retaining sleeves (4) are provided on both sides of the circuit breaker (3), and the shunt trip unit (5) is snapped onto one side of the circuit breaker (3), the two being in a compact state; characterized in that, It also includes a locking block (6), a limiting member (7), a guide plate (8), a reset spring (9), a pull rod (10), and a wedge block (11). The shunt trip unit (5) is provided with locking blocks (6) on both sides. The locking blocks (6) on both sides are locked in the corresponding sleeves (4). The circuit breaker (3) is provided with limiting members (7) at both ends. The ends of the limiting members (7) at both ends are provided with wedge-shaped parts. The shunt trip unit (5) is provided with guide plates (8) on both sides. The guide plates (8) at both ends are respectively located below the adjacent locking blocks (6). The wedge blocks (11) at both ends are slidably provided on the guide plates (8). The wedge blocks (11) at both ends abut against the wedge-shaped parts of the corresponding limiting members (7). A reset spring (9) is provided between the bottom of each wedge block (11) and the end face of the shunt trip unit (5). The outside of the wedge blocks (11) at both ends is provided with a pull rod (10).

2. The electrical tripping device as described in claim 1, characterized in that, It also includes a slide rail (12), a backing plate (13), a guide rail (14), a clamping plate (15), a mounting piece (16), and a screw (17). The slide rail (12) is embedded and slidably arranged in the rear part of the outer shell (1). The backing plate (13) is fixedly arranged at the bottom of the slide rail (12). The guide rail (14) is arranged on both sides of the slide rail (12). The clamping plate (15) is slidably arranged between the two guide rails (14). The clamping plate (15) and the backing plate (13) are in a relative state. The mounting piece (16) is arranged on the top of the slide rail (12). The screw (17) is threaded through the mounting piece (16). The bottom of the screw (17) is connected to the top of the clamping plate (15).

3. An electrical tripping device as described in claim 2, characterized in that, An adjusting block is provided at the top of the screw (17).

4. An electrical tripping device as described in claim 3, characterized in that, Anti-slip grooves are provided on the opposite sides of the clamping plate (15) and the backing plate (13).

5. An electrical tripping device as described in claim 4, characterized in that, When the screw (17) rotates, it moves linearly in the direction of the thread within the mounting part (16), thereby causing the clamping plate (15) to move closer to or away from the abutment plate (13).

6. An electrical tripping device as described in claim 5, characterized in that, When the wedge block (11) is pressed down and slides down the guide plate (8), the return spring (9) is compressed and the wedge block (11) is no longer held by the end of the limiting member (7).

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