Terminal cover for circuit breaker

Abstract

The utility model relates to the technical field of low-voltage electric appliances, and discloses a terminal cover for a circuit breaker, which comprises a circuit breaker body, wiring ports are arranged on the upper side and the lower side of the circuit breaker body, protection assemblies are arranged on the upper side and the lower side of the circuit breaker body, and each protection assembly comprises two mounting plates. The mounting plates are arranged on the outer wall of the circuit breaker body, a protective cover is fixedly connected between the two mounting plates, a fixing assembly is arranged in the mounting plates, a turnover assembly is arranged at the top of the protective cover, the fixing assembly comprises a limiting plate, and the outer wall of the limiting plate is slidably connected in the mounting plate. A pull rod is fixedly connected to the middle of the limiting plate. According to the utility model, the fixing assembly adopts a mode that the ball body is clamped with the positioning hole, the mounting plate slides down along the chute during mounting, the spring automatically pushes the ball body to be clamped into the positioning hole to complete fixation, and the pull rod is pulled to separate the ball body from the positioning hole during dismounting.

Description

TECHNICAL FIELD

[0001] The utility model relates to low voltage electrical apparatus technical field especially relates to a terminal cover for circuit breaker. BACKGROUND

[0002] In the power system, the circuit breaker as the key protection device, bears the double function of automatic cutout fault current and manual switching circuit. When the line current exceeds the set threshold, the circuit breaker can cut off the circuit in time, effectively prevent the line overheat and cause safety accident, and is widely used in substation, distribution box and various power facilities. In order to ensure the safe and stable operation of the circuit breaker, prevent dust, sundries from entering the terminal, and avoid the risk of short circuit or electric shock caused by accidental contact of external objects with the terminal, the protective cover becomes an indispensable protective component of the circuit breaker.

[0003] The existing circuit breaker protective cover has many drawbacks in practical application. On the one hand, the installation and removal process of traditional protective cover is complicated, often needs to use screwdriver and other tools to disassemble and assemble multiple bolts, the operation is complex and time-consuming, not only increases the work burden of power maintenance personnel, but also affects the maintenance efficiency of power system; on the other hand, the whole protective cover needs to be removed during maintenance, frequent disassembly can easily cause damage to the protective cover and related components, increase the maintenance cost, therefore, a terminal cover for circuit breaker is proposed. UTILITY MODEL CONTENTS

[0004] In order to make up for the above shortcomings, the utility model provides a terminal cover for circuit breaker, aiming at improving the problem that the installation and removal process of traditional protective cover in the prior art is complicated, often needs to use screwdriver and other tools to disassemble and assemble multiple bolts, the operation is complex and time-consuming, not only increases the work burden of power maintenance personnel, but also affects the maintenance efficiency of power system.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a terminal cover for circuit breaker, comprising a circuit breaker body, the circuit breaker body is provided with a terminal on the upper and lower sides, the circuit breaker body is provided with a protective assembly on the upper and lower sides;

[0006] The protective assembly comprises two mounting plates, the mounting plate is arranged on the outer wall of the circuit breaker body, the protective cover is fixedly connected between the two mounting plates, the mounting plate is provided with a fixing assembly inside, the top of the protective cover is provided with a turnover assembly.

[0007] As a further description of the above technical scheme:

[0008] The fixing assembly comprises a limiting plate, the limiting plate is slidably connected to the inside of the mounting plate, the limiting plate is fixedly connected with a pull rod in the middle, the pull rod is fixedly connected with a ball outside, and the pull rod is provided with a spring outside.

[0009] As a further description of the above technical solutions:

[0010] The turnover assembly comprises a rotating shaft, the rotating shaft is rotationally connected inside the protective cover, a rotating plate is fixedly connected to the outer wall of the rotating shaft, and two torsional springs are sleeved on the outer wall of the rotating shaft.

[0011] As a further description of the above technical solutions:

[0012] The circuit breaker body is provided with a sliding groove in the outer wall, a positioning hole is formed in the inner wall of the sliding groove, the outer wall of the ball is slidingly connected inside the sliding groove, and the ball and the positioning hole are clamped.

[0013] As a further description of the above technical solutions:

[0014] One end of the spring is fixedly connected to the inner wall of the mounting plate, and the other end of the spring is fixedly connected to the outer wall of the limiting plate.

[0015] As a further description of the above technical solutions:

[0016] The rotating plate is provided with two wire holes on the surface, and the bottom of the side, away from the wire hole, of the rotating plate is attached to the top of the protective cover.

[0017] As a further description of the above technical solutions:

[0018] One end of the torsional spring is fixedly connected to the inner wall of the protective cover, and the other end of the torsional spring is fixedly connected to the outer wall of the rotating shaft.

[0019] As a further description of the above technical solutions:

[0020] A handle is arranged on the top of the rotating plate.

[0021] The utility model has the following beneficial effects:

[0022] 1、The utility model discloses a ball and a positioning hole are clamped in the fixed assembly, when installing, only need to slide the mounting plate along the sliding groove, the spring automatically pushes the ball and is clamped into the positioning hole and completes the fixing, when disassembling, pulls the pull rod and makes the ball separate from the positioning hole, need not help complex tool, greatly simplifies the installation and disassembly process, shortens the operation time.

[0023] 2、The rotating plate in the turnover assembly can be flexibly turned over through the rotating shaft, when overhauling, the whole mounting plate does not need to be removed, the staff can open the rotating plate with the help of the handle, and the wiring port is quickly contacted to carry out the overhauling operation. DRAWINGS

[0024] Figure 1 A perspective view of a terminal cover for a circuit breaker is provided in the utility model;

[0025] Figure 2 A wiring port schematic view of a terminal cover for a circuit breaker is provided in the utility model;

[0026] Figure 3 For Figure 2 The enlarged view at A in the middle;

[0027] Figure 4 A mounting plate sectional view of a terminal cover for a circuit breaker is provided in the utility model;

[0028] Figure 5 A rotating plate schematic view of a terminal cover for a circuit breaker is provided in the utility model;

[0029] Figure 6 For Figure 5 The enlarged view at B in the middle.

[0030] Legend:

[0031] 1, circuit breaker body; 2, wiring port; 3, sliding groove; 4, positioning hole; 5, mounting plate; 6, protective cover; 7, limiting plate; 8, pull rod; 9, ball; 10, spring; 11, rotating shaft; 12, rotating plate; 13, torsional spring; 14, wire hole. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0033] With reference to Figures 1-3 The utility model provides an embodiment: a terminal cover for a circuit breaker, including circuit breaker body 1, circuit breaker body 1 is the protection device for automatic cutout fault current or manual switching circuit in power system, when current exceeds the set value, delay cutout circuit, prevent line overheat, circuit breaker body 1 upper and lower sides are all set up wiring port 2, wiring port 2 is used for connecting external line, so that circuit breaker body 1 can monitor external circuit, circuit breaker body 1 upper and lower sides are all provided with protection assembly, protection assembly is used for protecting terminal, avoids dust and sundries to enter terminal, influences circuit breaker normal work, can also prevent external object accidental touch wiring port 2 and cause safety accident simultaneously;

[0034] With reference toFigure 1 And Figure 5 The protection assembly comprises two mounting plates 5 arranged on the outer wall of the circuit breaker body 1, which provide a basis for the installation of the protection assembly and better protection of the wiring port 2. The two mounting plates 5 are fixedly connected with a protection cover 6, which is a main structure for protecting the wiring port 2. The protection cover 6 is square, which can effectively shield the wiring port 2 and protect the wiring port 2. The mounting plate 5 is internally provided with a fixing assembly for fixing the mounting plate 5 to the outer wall of the circuit breaker body 1 to ensure the stability of the mounting plate 5 during protection. The top of the protection cover 6 is provided with a turnover assembly for turning over the rotating plate 12, so that the mounting plate 5 does not need to be removed during the maintenance of the circuit.

[0035] Referring to Figure 4 The fixing assembly comprises a limiting plate 7 which is slidably connected to the inside of the mounting plate 5. The limiting plate 7 is used to limit the pull rod 8 to prevent the pull rod 8 from sliding excessively and causing the fixing assembly to lose its function. The limiting plate 7 is fixedly connected with a pull rod 8 in the middle. The pull rod 8 is used to pull the ball 9 to slide, so that the ball 9 is disengaged from the positioning hole 4 to achieve the disassembly of the protection cover 6. The pull rod 8 is fixedly connected with a ball 9 on the outer wall. The ball 9 is engaged with the subsequent positioning hole 4 to fix the mounting plate 5. The pull rod 8 is sleeved with a spring 10 on the outer wall. The spring 10 is used to provide elastic force. When the pull rod 8 is pulled to drive the limiting plate 7 to slide, the spring 10 will be extruded to store potential energy. When the external force disappears, the spring 10 will reset to push the limiting plate 7 to slide, so that the ball 9 is engaged with the sliding groove 3.

[0036] Referring to Figure 5 And Figure 6 The turnover assembly comprises a rotating shaft 11 which is rotatably connected to the inside of the protection cover 6. The rotating shaft 11 is used to provide an installation position for the rotating plate 12, and can also drive the rotating plate 12 to rotate during rotation. The rotating shaft 11 is fixedly connected with a rotating plate 12 on the outer wall. The rotating plate 12 is used to shield the top of the protection cover 6 to improve the protection effect. The rotating shaft 11 is sleeved with two torsional springs 13 on the outer wall. The torsional springs 13 are used to provide elastic force. When the rotating plate 12 is rotated to drive the rotating shaft 11 to rotate, the torsional springs 13 will be wound to store potential energy. When the rotating plate 12 is released, the torsional springs 13 will reset to further drive the rotating plate 12 to reset.

[0037] Referring to Figure 3 And Figure 4The outer wall of the circuit breaker body 1 is provided with a sliding groove 3, the inner wall of the sliding groove 3 is provided with a positioning hole 4, the outer wall of the ball 9 is slidingly connected in the sliding groove 3, the sliding groove 3 provides a guide function for the sliding of the ball 9, so that the mounting plate 5 can be smoothly installed and removed, the ball 9 and the positioning hole 4 are clamped, the ball 9 and the positioning hole 4 are clamped, the fixing of the mounting plate 5 is realized, and the stability of the protection assembly during work is ensured.

[0038] Referring to Figure 4 One end of the spring 10 is fixedly connected to the inner wall of the mounting plate 5, and the other end of the spring 10 is fixedly connected to the outer wall of the limiting plate 7, so that the spring 10 can effectively store potential energy during extrusion by the limiting plate 7, and can effectively push the limiting plate 7 to slide during release of the potential energy.

[0039] Referring to Figure 5 Two wire holes 14 are formed in the surface of the rotating plate 12, the wire holes 14 are used for guiding the wire, and the wire holes 14 are prevented from being wound together, the bottom of the side of the rotating plate 12 away from the wire hole 14 is attached to the top of the protective cover 6, and is used for limiting the rotating plate 12, so that the rotating plate 12 is prevented from rotating into the protective cover 6 under the driving of the torsional spring 13.

[0040] Referring to Figure 6 One end of the torsional spring 13 is fixedly connected to the inner wall of the protective cover 6, and the other end of the torsional spring 13 is fixedly connected to the outer wall of the rotating shaft 11, so that the torsional spring 13 can effectively store potential energy during rotation, and can effectively drive the rotating shaft 11 to rotate during release of the potential energy.

[0041] Referring to Figure 5 A handle is arranged on the top of the rotating plate 12, so that the rotating plate 12 can be easily rotated by the worker, and the junction port 2 can be maintained.

[0042] When the junction port 2 on the circuit breaker body 1 needs to be protected, the ball 9 on the outer wall of the mounting plate 5 is inserted into the sliding groove 3, at this time, the ball 9 is extruded by the outer wall of the circuit breaker body 1 and slides, when the ball 9 slides outward, the pull rod 8 slides outward, and the limiting plate 7 slides outward, so that the spring 10 is extruded, the spring 10 stores potential energy, when the mounting plate 5 continues to slide downward, the ball 9 is aligned with the positioning hole 4, at this time, the spring 10 releases the stored potential energy, so as to push the limiting plate 7 to slide inward, when the limiting plate 7 slides inward, the pull rod 8 slides inward, and the ball 9 slides inward, so that the ball 9 and the positioning hole 4 are clamped, and the mounting plate 5 is fixed.

[0043] Subsequently, the rotating plate 12 is rotated, when the rotating plate 12 is rotated, the rotating shaft 11 is further rotated, the torsional spring 13 is further rotated, so that the torsional spring 13 stores potential energy, subsequently, the electric wire is passed through the wire hole 14 and reaches the inside of the wiring port 2, subsequently, the electric wire is fixed in the wiring port 2 by means of screwdriver, finally, the rotating plate 12 is loosened, at this time, the external force disappears, the torsional spring 13 is reset, the rotating shaft 11 is further rotated, the rotating plate 12 is rotated, the top of the protective cover 6 is covered.

[0044] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of the present application.

Claims

1. A terminal cover for a circuit breaker, comprising a circuit breaker body (1), characterized in that: The circuit breaker body (1) has wiring ports (2) on both the upper and lower sides, and protective components are provided on both the upper and lower sides of the circuit breaker body (1). The protective assembly includes two mounting plates (5), which are disposed on the outer wall of the circuit breaker body (1). A protective cover (6) is fixedly connected between the two mounting plates (5). A fixing component is disposed inside the mounting plate (5), and a flipping component is disposed on the top of the protective cover (6).

2. A terminal cover for a circuit breaker according to claim 1, characterized in that: The fixing component includes a limiting plate (7), the outer wall of the limiting plate (7) is slidably connected to the inside of the mounting plate (5), a pull rod (8) is fixedly connected to the middle of the limiting plate (7), a ball (9) is fixedly connected to the outer wall of the pull rod (8), and a spring (10) is sleeved on the outer wall of the pull rod (8).

3. A terminal cover for a circuit breaker according to claim 1, characterized in that: The flipping assembly includes a rotating shaft (11), which is rotatably connected inside the protective cover (6). A rotating plate (12) is fixedly connected to the outer wall of the rotating shaft (11), and two torsion springs (13) are sleeved on the outer wall of the rotating shaft (11).

4. A terminal cover for a circuit breaker according to claim 2, characterized in that: The circuit breaker body (1) has a groove (3) on its outer wall and a positioning hole (4) on its inner wall. The outer wall of the ball (9) is slidably connected to the inside of the groove (3), and the ball (9) and the positioning hole (4) are engaged.

5. A terminal cover for a circuit breaker according to claim 2, characterized in that: One end of the spring (10) is fixedly connected to the inner wall of the mounting plate (5), and the other end of the spring (10) is fixedly connected to the outer wall of the limiting plate (7).

6. A terminal cover for a circuit breaker according to claim 3, characterized in that: The rotating plate (12) has two wire holes (14) on its surface, and the bottom of the rotating plate (12) away from the wire holes (14) is attached to the top of the protective cover (6).

7. A terminal cover for a circuit breaker according to claim 3, characterized in that: One end of the torsion spring (13) is fixedly connected to the inner wall of the protective cover (6), and the other end of the torsion spring (13) is fixedly connected to the outer wall of the rotating shaft (11).

8. A terminal cover for a circuit breaker according to claim 3, characterized in that: The rotating plate (12) is provided with a handle on its top.

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