Release device for circuit breaker

Abstract

The utility model relates to the technical field of release devices, and discloses a release device for a circuit breaker, which comprises a long base, the middle part of the top surface of the long base is fixedly connected with an L-shaped bottom plate, the top of the L-shaped bottom plate is provided with a release mechanism, and the left side and the right side of the top of the release mechanism are fixedly connected with secondary square rods. The middle of the top surface of the secondary square rod is rotatably connected with a secondary roller, the rear side of the top of the L-shaped bottom plate is fixedly connected with a position state top plate, and the left end and the right end of the rear side of the position state top plate are fixedly connected with secondary interlocking top plates. According to the utility model, the L-shaped bottom plate is mainly used as a support base, the round hole is arranged on the L-shaped bottom plate and is used for the penetration and the penetration of a wire or a cable and indicating the current state of a circuit, and the whole device can be locked by the secondary interlocking top plate, so that the electric shock and electric leakage protection of the circuit is realized, and the safety and the reliability of an electrical system are effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tripping device technical field for circuit breaker especially relates to a tripping device for circuit breaker. BACKGROUND

[0002] The circuit breaker tripping device is the sensing element of the circuit breaker and is also the protection device of the circuit breaker, after receiving the instruction of the operator and the relay protection signal, the tripping device can make the circuit breaker trip to cut off the circuit through the transmission element, when the power supply voltage is lower than the rated value, the electromagnetic force generated by the electromagnet is not enough to overcome the tension of the reaction force spring, thereby the armature is pulled apart, the free tripping mechanism is pushed through the transmission mechanism to make the circuit breaker break, and the electromagnetic coil of the separate excitation tripping device is connected in parallel on the power supply side of the circuit breaker, when the tripping is needed, the normally open button is pressed to make the electromagnet get electricity and drive the armature, the free tripping mechanism is pushed through the transmission mechanism to make the circuit breaker trip.

[0003] The circuit breaker tripping device is a mechanical device for releasing the mechanical device of the circuit breaker switch, the signal is transmitted to the circuit breaker through the mechanical transmission device, and the unlocking operation is initiated, so that the power supply is cut off and the circuit is disconnected to ensure the safe operation of the circuit, when the current passes through the thermal tripping device, the thermal element in the thermal tripping device will heat and expand, when the current exceeds the rated value, the expansion degree of the thermal element will increase, finally the tripping mechanism is pushed to act, and the circuit breaker breaks, but the tripping device of the existing oil circuit breaker cannot detect the leakage current in time and cut off the circuit when the human body accidentally contacts the leakage electrical equipment and line in the use process, the current will continuously pass through the human body, resulting in electric shock accident, and there is certain danger. CONTENT OF THE UTILITY MODEL

[0004] In order to make up for the above defects, the utility model provides a tripping device for circuit breaker, aims at improving the prior art when the human body accidentally contacts the leakage electrical equipment and line, the tripping device cannot detect the leakage current in time and cut off the circuit, the current will continuously pass through the human body, resulting in electric shock accident, and there is certain danger.

[0005] In order to realize the above purpose, the utility model adopts the following technical scheme: a tripping device for circuit breaker, including long shape base, the top surface middle part of long shape base is fixedly connected with L shape bottom plate, the top of L shape bottom plate is provided with tripping device mechanism, the top left and right sides of tripping device mechanism are fixedly connected with quadratic bar, the top surface middle part of quadratic bar is rotatably connected with quadratic roller, the top rear side of L shape bottom plate is fixedly connected with position state top plate, the rear side left and right ends of position state top plate are fixedly connected with quadratic interlocking top plate, the inside middle part of L shape bottom plate is provided with output crank, the bottom of output crank is rotatably connected with connecting plate, the bottom of connecting plate is provided with rotary crank.

[0006] As a further description of the above technical solutions:

[0007] The top front side of the L-shaped bottom plate is provided with a circular hole, and a plurality of the circular holes are designed in equidistant alignment.

[0008] As a further description of the above technical solutions:

[0009] The left and right sides of the L-shaped bottom plate are connected with protective plates.

[0010] As a further description of the above technical solutions:

[0011] The left and right sides of the L-shaped bottom plate are connected with protective plates.

[0012] As a further description of the above technical solutions:

[0013] The left and right sides of the L-shaped bottom plate are connected with protective plates.

[0014] The utility model has the advantages of the following beneficial effects:

[0015] 1、 the utility model discloses, pass through mainly by L-shaped bottom plate as the support foundation, and it is equipped with the circular hole for the wire or cable and goes in and went out, in order to install the electrical element, position state top plate is connected with the long base, is used for indicating the state of current circuit, whether the power is in the protection state, in order to realize more complex electrical control function, the device is also equipped with secondary square pole and secondary roller when the tripping device mechanism acts, and secondary interlocking top plate will lock the whole device, prevents the power from being turned on again before the trouble is removed, thereby realizes the electric shock and the earth leakage protection of circuit, effectively improves the safety and reliability of electrical system. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a front side perspective view of the tripping device for the circuit breaker that the utility model proposes;

[0017] Figure 2 It is a rear view of the tripping device for the circuit breaker that the utility model proposes;

[0018] Figure 3 It is a top view of the tripping device for the circuit breaker that the utility model proposes;

[0019] Figure 4 It is a side view of the tripping device for the circuit breaker that the utility model proposes.

[0020] LEGEND:

[0021] 1, L-shaped bottom plate; 2, round hole; 3, reserved hole; 4, long base; 5, guard plate; 6, position state top plate; 7, quadratic bar; 8, quadratic roller; 9, rotary crank arm; 10, connecting plate; 11, output crank arm; 12, release mechanism; 13, secondary interlocking top plate; 14, handle. DETAILED DESCRIPTION

[0022] 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 protection scope of the utility model.

[0023] Please refer to the drawings of the embodiments of the utility model Figure 1 - the drawings of the embodiments of the utility model Figure 3 An embodiment provided by the utility model: a kind of release device for circuit breaker, including long base 4, the top surface middle part of long base 4 is fixedly connected with L-shaped bottom plate 1, the top of L-shaped bottom plate 1 is provided with release mechanism 12, the top left and right sides of release mechanism 12 are fixedly connected with quadratic bar 7, the top surface middle part of quadratic bar 7 is rotatably connected with quadratic roller 8, the top rear side of L-shaped bottom plate 1 is fixedly connected with position state top plate 6, the rear side left and right ends of position state top plate 6 are fixedly connected with secondary interlocking top plate 13, the inside middle upper part of L-shaped bottom plate 1 is provided with output crank arm 11, the bottom of output crank arm 11 is rotatably connected with connecting plate 10, the bottom of connecting plate 10 is provided with rotary crank arm 9;

[0024] Specifically, long base 4 is used as the stable cornerstone of the whole device to install L-shaped bottom plate 1, L-shaped bottom plate 1 not only provides stable support, realizes circuit protection, release mechanism 12 as the guardian of circuit safety can quickly respond when detecting abnormal current, cut off circuit to prevent potential danger, enhance the reliability and flexibility of circuit protection, the top left and right sides of release mechanism 12 are fixedly connected to install quadratic bar 7, quadratic bar 7 as the bridge of connection and transmission makes quadratic roller 8 can smoothly roll on it, the rear side left and right ends of position state top plate 6 are fixedly connected to install secondary interlocking top plate 13, secondary interlocking top plate 13 as an important part of circuit protection can quickly lock the whole device after release mechanism 12 acts, prevent re-energization before troubleshooting, thereby avoiding potential electric shock and leakage risk, connecting plate 10 as the bridge connecting output crank arm 11 and release mechanism 12 can accurately transmit the action signal of release mechanism 12 to output crank arm 11, thereby triggering circuit protection action.

[0025] Please refer to the drawings of the embodiments of the utility model Figure 2 - the drawings of the embodiments of the utility modelFigure 4 The top front side of the L-shaped bottom plate 1 is provided with a plurality of circular holes 2, the plurality of circular holes 2 are designed in equidistant alignment, the left and right sides of the long-shaped base 4 are fixedly connected with two reserved holes 3, the left and right sides of the L-shaped bottom plate 1 are connected with protective plates 5, and the left and right ends of the rear side of the long-shaped base 4 are fixedly connected with two handles 14.

[0026] Specifically, a plurality of circular holes 2 are arranged on the top front side of the L-shaped bottom plate 1, which are not only used for the entry and exit of wires and cables, but also ensure that the current can flow smoothly inside the device, and more importantly, the distribution of the current inside the device is more uniform, thereby improving the stability and safety of the circuit, the left and right sides of the long-shaped base 4 are provided with two reserved holes 3, which provide great convenience for subsequent expansion and upgrading, the protective plate 5 is very solid and durable, which can effectively prevent external objects and personnel from directly contacting the internal electrical elements, thereby avoiding the risk of electric shock, the protective plate 5 also has certain dustproof and moisture-proof functions, which can ensure that the device can still work normally in harsh environments, and the handle 14 is very user-friendly, which not only facilitates the operator to hold and move the device, but also can provide additional support force when needed.

[0027] Working principle: the device is mainly supported by the L-shaped bottom plate 1, which is provided with circular holes 2 for the entry and exit of wires or cables, and reserved holes 3 are reserved on the L-shaped bottom plate 1 for the installation of electrical elements, the long-shaped base 4 is fixed on the L-shaped bottom plate 1 to provide stable support for the entire device, in order to enhance safety, the protective plate 5 is arranged above the long-shaped base 4, the position state top plate 6 is connected with the long-shaped base 4, which is used to indicate the current state of the circuit, such as whether it is powered on or in a protection state, in order to realize more complex electrical control functions, the device is also equipped with a secondary square rod 7 and a secondary roller 8, which can detect abnormal conditions in the circuit, in addition, in order to ensure that the device will not be misoperated after the circuit is cut off, the secondary interlocking top plate 13 is cooperated with the device, when the release mechanism 12 is actuated, the secondary interlocking top plate 13 will lock the entire device to prevent re-powering before the fault is eliminated, thus realizing the protection against electric shock and leakage of the circuit, and effectively improving the safety and reliability of the electrical system.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present application and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement of some technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A tripping device for a circuit breaker, comprising an elongated base (4), characterized in that: An L-shaped base plate (1) is fixedly connected to the middle of the top surface of the elongated base (4). A tripping mechanism (12) is provided on the top of the L-shaped base plate (1). A quadratic rod (7) is fixedly connected to the left and right sides of the top of the tripping mechanism (12). A secondary roller (8) is rotatably connected to the middle of the top surface of the quadratic rod (7). A position status top plate (6) is fixedly connected to the rear side of the top of the L-shaped base plate (1). A secondary interlocking top plate (13) is fixedly connected to the left and right ends of the rear side of the position status top plate (6). An output crank arm (11) is provided in the upper middle part of the inner side of the L-shaped base plate (1). A connecting plate (10) is rotatably connected to the bottom of the output crank arm (11). A rotating crank arm (9) is provided at the bottom of the connecting plate (10).

2. The tripping device for a circuit breaker according to claim 1, characterized in that: The L-shaped base plate (1) has circular holes (2) on its top front side, and the multiple circular holes (2) are arranged in an equidistant row.

3. The tripping device for a circuit breaker according to claim 1, characterized in that: The left and right sides of the L-shaped base plate (1) are connected to protective plates (5).

4. A tripping device for a circuit breaker according to claim 1, characterized in that: The elongated base (4) has two pre-drilled holes (3) fixedly connected to the front ends of both the left and right sides.

5. A tripping device for a circuit breaker according to claim 1, characterized in that: Two handles (14) are fixedly connected to the left and right ends of the rear side of the elongated base (4).

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