Anti-falling miniature circuit breaker

Abstract

The utility model provides an anti-falling miniature circuit breaker, and belongs to the technical field of circuit breakers. Comprising a circuit breaker body, the circuit breaker body comprises a port groove and a screw used for screwing a connecting wire inserted into the port groove, the circuit breaker body is provided with an anti-falling assembly, the anti-falling assembly comprises a rectangular frame, springs are symmetrically arranged on the lower portions of the two inner side walls of the rectangular frame, clamping plates are arranged at the ends of the springs, and a clamping plate is slidably connected between the inner side walls of the rectangular frame. And the side wall of the clamping plate is rotationally connected with a screw in threaded connection with the top of the rectangular frame. According to the utility model, the connection wire can be preliminarily clamped and positioned between the clamping plates through the anti-falling assembly, a worker does not need to hold the connection wire with hands when a screw is screwed, the operation is simpler and more convenient, the situation that the position of the connection terminal in a port groove is deflected is effectively avoided, the final connection effect is not influenced, and on the basis of screwing the screw, the connection wire can be firmly clamped and positioned. And a certain section of the wiring can be clamped and locked between the clamping plate and the inner side wall of the rectangular frame, so that the wiring end is effectively prevented from falling off from the port groove.

Description

TECHNICAL FIELD

[0001] The utility model provides a kind of anti-falling miniature circuit breaker, belong to circuit breaker technical field. BACKGROUND

[0002] Circuit breaker refers to the switch device that can be closed, load and open under normal circuit conditions Current, and can be closed, load and open under abnormal circuit conditions Current within a specified time, miniature circuit breaker is a kind of current limiting type circuit breaker with overload and short-circuit protection, suitable for the overload short-circuit protection of industrial and commercial lighting distribution system of alternating current 501-1z, single-pole voltage 230V and below, two, three, four-pole voltage 400V and below, it can also be used for infrequent on-off conversion of line under normal conditions.

[0003] The existing miniature circuit breaker can basically meet the normal use needs, usually when wiring, the insulating sheath of terminal head is torn off to expose copper wire, then the exposed terminal head is inserted into the port slot, then one hand holds the wire, and the other hand holds the screwdriver to screw the screw into the port slot to press the terminal head, and the wiring work is completed.

[0004] Based on the above search combined with prior art, when screwing the screw to press the terminal head, the worker needs to hold the wire with hand, which is relatively not simple and convenient to operate, and long-time hand holding may cause the terminal head to be mismoved in the port slot, resulting in position deviation, once there is position deviation and the terminal head is not effectively pressed by the screw, a little force may cause the terminal head to fall off from the port slot. Based on this, the utility model provides a kind of anti-falling miniature circuit breaker. UTILITY MODEL CONTENTS

[0005] The technical problem solved by the utility model is that the worker needs to hold the wire with hand when screwing the screw, which is not simple and convenient to operate, long-time hand holding may cause the terminal head to be mismoved in the port slot, resulting in position deviation, once there is position deviation and the terminal head is not effectively pressed by the screw, a little force may cause the terminal head to fall off from the port slot.

[0006] In order to solve the technical problem, the utility model provides the technical scheme that a kind of anti-falling miniature circuit breaker, including circuit breaker main body, the circuit breaker main body includes port slot for wiring and screw for tightening the wire inserted into port slot, the circuit breaker main body is equipped with the anti-falling component for preventing wire from falling off at port slot, the anti-falling component includes rectangular frame, the spring is symmetrically equipped in the lower part of two inner side walls of the rectangular frame, the end of the spring is equipped with clamping plate, the clamping plate is slidably connected between the inner side walls of the rectangular frame and is placed on one side of clamping plate, the clamping plate side wall is rotatably connected with the screw rod threadedly connected with the top of rectangular frame.

[0007] Further, the rectangular frame is fixedly arranged on the side wall of the circuit breaker body and is arranged at the outer edge of the port slot, and the other end of the screw rod is provided with a handle arranged outside the rectangular frame.

[0008] Further, the side wall of the clamping plate is provided with a pull rod penetrating through the spring and out of the rectangular frame, and the end of the pull rod is provided with a pull ring.

[0009] Further, the inner side wall of the rectangular frame is provided with a limiting rail matched with the clamping plate.

[0010] Further, the side wall of the clamping plate close to each other is provided with a buffer pad one.

[0011] Further, the cross section of the clamping plate is an outwardly expanding eight-shaped, and the side wall of the clamping plate close to the clamping plate is provided with a buffer pad two.

[0012] The utility model discloses beneficial effects:

[0013] Through the anti-falling assembly, under the joint action of the spring, the staff pulls outwards and loosens the pull ring inwards, so that the clamping plate moves outwards and reversely moves inwards to reset, can preliminarily clamp and position the wiring between the clamping plates, when the screw is screwed to press the wiring end, the staff does not need to hold the wiring with hand, the operation is more simple and convenient, effectively avoids the position deflection of the wiring end in the port slot, so as to avoid affecting the final wiring effect, by holding the handle and rotating, the clamping plate moves, and then on the basis that the screw is tightened, can clamp and lock a section of the wiring close to the end between the clamping plate and the inner side wall of the rectangular frame, effectively avoids the wiring end from falling off from the port slot. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structure diagram of a small circuit breaker of the utility model Figure 1 .

[0015] Figure 2 It is a structure diagram of a small circuit breaker of the utility model Figure 2 .

[0016] Figure 3 It is a structure diagram of a small circuit breaker of the utility model Figure 3 .

[0017] Figure 4 It is a partial enlarged view A of a small circuit breaker of the utility model.

[0018] 1, circuit breaker body;2, port slot;3, screw;4, anti-falling assembly;5, rectangular frame;6, spring;7, clamping plate;8, clamping plate;9, screw rod;10, handle;11, pull rod;12, pull ring;13, limiting rail;14, buffer pad one;15, buffer pad two. Detailed Implementation

[0019] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly mentioned in this specification are defined relative to their structure and are relative concepts. Therefore, they may vary depending on their location and usage; thus, these or other directional terms should not be interpreted as restrictive terms.

[0020] The singular forms “a,” “the,” and “the” used in this specification are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes one or more of the associated listed items, any or all possible combinations thereof.

[0021] To make the technical problems to be solved, the technical solutions, and the beneficial effects of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0022] According to the appendix Figure 1 , 2 As shown: This utility model provides a miniature circuit breaker that prevents detachment: it includes a circuit breaker body 1, which includes a port slot 2 for wiring and a screw 3 for tightening the wire inserted into the port slot 2. Specifically, the circuit breaker body 1 adopts the prior art. When wiring, the wire end is inserted into the port slot 2, and then one hand holds the wire while the other hand holds the screwdriver to screw the screw 3 into the port slot 2 to press the wire end, thus completing the wiring work.

[0023] As per the instruction manual Figure 3 , 4 As shown: The circuit breaker body 1 is provided with an anti-detachment component 4 placed in the port slot 2 to prevent the wiring from falling off. The anti-detachment component 4 includes a rectangular frame 5 fixedly installed on the side wall of the circuit breaker body 1 and located at the outer edge of the port slot 2. Springs 6 are symmetrically provided on the lower part of the two inner side walls of the rectangular frame 5. Clamping plates 7 are provided at the ends of the springs 6. Pull rods 11 are provided on the side walls of the clamping plates 7, passing through the springs 6 and out of the rectangular frame 5. Pull rings 12 are provided at the ends of the pull rods 11. Buffer pads 14 are provided on the side walls of the clamping plates 7 that are close to each other, which play a buffering role. Specifically, the operator inserts his thumb and middle finger into the pull rings 12 on both sides and pulls them outwards, causing the pull rods 11 and clamping plates 7 to move outwards, compressing the springs 6. The other hand inserts the wiring end into the port slot 2. Then, the thumb and middle finger slowly release the pull rings 12. The compressed springs 6 push the pull rods 11 and clamping plates 7 in the opposite direction, thereby clamping and positioning the wiring between the clamping plates 7.

[0024] As shown in the accompanying drawings of the specification: Figure 4 The side wall of the rectangular frame 5 is provided with a limiting rail 13 matched with the clamping plate 8, which plays a limiting role on the clamping plate 8. The side wall of the clamping plate 8 is rotationally connected with a screw rod 9 which is threadedly connected with the top of the rectangular frame 5. The other end of the screw rod 9 is provided with a handle 10 outside the rectangular frame 5. The cross section of the clamping plate 8 is in the shape of an eight character which expands outward. The side wall of the clamping plate 8 close to the clamping plate 7 is provided with a buffer pad 15 which plays a buffering role. Specifically, by holding the handle 10 to rotate and move the screw rod 9, the clamping plate 8 is moved, and a certain section of the wiring close to the end can be clamped and locked between the clamping plate 8 and the inner side wall of the rectangular frame 5.

[0025] The principle of the utility model

[0026] When the wiring end needs to be connected to the port slot 2, through the anti-falling assembly 4, the staff inserts his fingers into the pull ring 12 and pulls it outward with force, so that the pull rod 11 and the clamping plate 7 move outward, and the spring 6 is compressed. The other hand inserts the wiring end into the port slot 2 and adjusts the position. Then the thumb and middle finger slowly release the pull ring 12, and the compressed spring 6 reversely pushes the pull rod 11 and the clamping plate 7, so that the wiring can be preliminarily clamped and positioned between the clamping plates 7. When the screw 3 is screwed to press the wiring end, the staff does not need to hold the wiring with his hand, the operation is more simple and convenient, and the position deviation of the wiring end in the port slot 2 is effectively avoided, so as to avoid affecting the final wiring effect. Then by holding the handle 10 to rotate and move the screw rod 9, the clamping plate 8 is moved, and on the basis of the screw 3 being tightened, a certain section of the wiring close to the end can be clamped and locked between the clamping plate 8 and the inner side wall of the rectangular frame 5, so as to effectively prevent the wiring end from falling off from the port slot 2.

[0027] The above describes the utility model and its implementation, which is not limited. The drawings shown are only one of the embodiments of the utility model, and the actual structure is not limited thereto. In general, if a person skilled in the art is inspired thereby, without departing from the creative purpose of the utility model, similar structural modes and embodiments can be designed without creativity, which shall belong to the protection scope of the utility model.

Claims

1. A small-sized anti-drop circuit breaker comprising a circuit breaker main body (1) including a port slot (2) for a wiring and a screw (3) for tightening the wiring inserted into the port slot (2), characterized in that: The circuit breaker body (1) is provided with an anti-falling assembly (4) placed at the port slot (2) for preventing the wiring from falling off, the anti-falling assembly (4) comprises a rectangular frame (5), the two inner side walls of the rectangular frame (5) are symmetrically provided with springs (6) at the lower part, the end of the spring (6) is provided with a clamping plate (7), the inner side walls of the rectangular frame (5) are slidably connected with a clamping plate (8) placed at one side of the clamping plate (7), the side wall of the clamping plate (8) is rotatably connected with a screw rod (9) threadedly connected with the top of the rectangular frame (5).

2. A fall-out resistant miniature circuit breaker according to claim 1, characterized in that: The rectangular frame (5) is fixedly arranged on the side wall of the circuit breaker body (1) and placed at the outer edge of the port slot (2), the other end of the screw rod (9) is provided with a handle (10) placed outside the rectangular frame (5).

3. The anti-drop miniature circuit breaker according to claim 1, characterized in that: The side wall of the clamping plate (7) is provided with a pull rod (11) penetrating through the spring (6) and out of the rectangular frame (5), the end of the pull rod (11) is provided with a pull ring (12).

4. The anti-drop miniature circuit breaker according to claim 1, characterized in that: The inner side wall of the rectangular frame (5) is provided with a limiting rail (13) matched with the clamping plate (8).

5. The anti-drop miniature circuit breaker according to claim 1, characterized in that: The side walls of the clamping plate (7) approaching each other are provided with a buffer pad (14).

6. The anti-drop miniature circuit breaker according to claim 1, characterized in that: The cross section of the clamping plate (8) is in the shape of an outwardly expanding eight-character, the side wall of the clamping plate (8) close to the clamping plate (7) is provided with a buffer pad (15).

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