Handle mechanism for convenient closing of mining assembled residual-current circuit breaker

Abstract

The handle mechanism comprises a circuit breaker side handle, a leakage protection module side handle, a handle sleeve and a connection closing portion, the circuit breaker side handle comprises a closing side and an opening side, a driving rod used for being matched with a handle portion of an external explosion-proof distribution box is formed on the handle sleeve, and the handle sleeve is connected with the connection closing portion. Therefore, if the explosion-proof distribution box trips due to electric leakage and the electric leakage is relieved, the driving rod on the handle mechanism can be driven by the handle part to drive the circuit breaker side handle to be switched on, and the synchronous driving rod can drive the circuit breaker side handle to be switched on while switching on the circuit breaker side handle through the handle sleeve. A handle at the side of a leakage protection module is pushed by an associated closing part related to the handle mechanism to carry out associated closing, so that an operation handle which independently controls opening and closing on an independent leakage protection module of the split mounting type leakage circuit breaker can carry out convenient closing, and therefore, the split mounting type leakage circuit breaker mounted on an explosion-proof distribution box can be realized, and the service life of the split mounting type leakage circuit breaker can be prolonged. And the operation is convenient and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to a handle mechanism for conveniently closing a mining assembled leakage circuit breaker. Background Art

[0002] The leakage circuit breaker is a kind of device that can be widely used in the fields of industry, commerce, and residential housing. When leakage occurs in the line, it can quickly cut off the faulty power supply within a specified extremely short time to protect the safety of people and electrical equipment. The leakage circuit breakers currently on the market generally have two structural forms: one is to add an independent leakage protection module to the general circuit breaker, that is, the two are combined and connected in the form of assembly, and at the same time, an independent operating handle is set on the independent leakage protection module (that is, after the circuit breaker trips due to leakage, the operating handle on the independent leakage protection module will also trip; and in the closing stage, the operating handle on the independent leakage protection module also needs to be closed); the second is to modify the ordinary circuit breaker (that is, the air switch) so that the leakage protection module is integrated inside, and at the same time, when the circuit breaker is in the opening and closing stage of the circuit breaker, the leakage module can be disconnected, and after the circuit breaker is closed, the leakage module can be energized.

[0003] After a user purchases or installs an ordinary circuit breaker, in order to realize that the installed circuit breaker has a leakage protection function, a more convenient or relatively cost-effective solution is generally not to remove the entire ordinary circuit breaker and replace it with a leakage circuit breaker of the corresponding ampere, but to install an independent leakage protection module to make the ordinary circuit breaker have a leakage protection function.

[0004] In addition, with the continuous promotion of existing ordinary circuit breakers with independent leakage protection modules or leakage circuit breakers with integrated leakage protection modules, they have been continuously used in all walks of life; but in practice, it is found that ordinary circuit breakers with independent leakage protection modules, although they can have leakage protection functions, will be constrained when used in some industries. When they are used in mines, the circuit breaker is installed in a mine explosion-proof distribution box, that is, after the circuit breaker is installed in the mine explosion-proof distribution box, the entire circuit breaker is limited in the mine explosion-proof distribution box, and after installation, only the handle part of the circuit breaker can be driven from the outside of the mine explosion-proof distribution box, and because the mine explosion-proof distribution box cannot be opened unless necessary, the circuit breaker with the independent leakage protection module installed will cause the independent operating handle involved in the independent leakage protection module to be operated when it needs to be closed after leakage tripping. There will be considerable inconvenience in operation. Summary of the invention

[0005] In view of the above-mentioned deficiencies, the utility model provides a device which can be used in mines and is equipped with an independent leakage protection module. The independent operating handle of the independent leakage protection module can realize a handle mechanism for convenient closing.

[0006] In order to achieve the above purpose, the utility model adopts a handle mechanism for convenient closing of a mining assembled leakage circuit breaker, including a circuit breaker side handle, a leakage protection module side handle, a handle cover adapted to the circuit breaker side handle and installed on the circuit breaker side handle, and a joint closing portion distributed on the closing side and extending toward one side of the leakage protection module side handle, the circuit breaker side handle includes a closing side and an opening side, and the handle cover is formed with a driving rod adapted to the handle part of an external explosion-proof distribution box on the other side adapted to the circuit breaker side handle;

[0007] During the closing stage of the handle part of the external explosion-proof distribution box, the handle sleeve drives the circuit breaker side handle to close through the joint closing part, and at the same time, the leakage protection module side handle can be driven to perform the closing action.

[0008] The beneficial effect of the above structure is that: by involving the handle mechanism in a handle sleeve adapted to the handle on the circuit breaker side and a joint closing part extending to the side of the handle on the leakage protection module side, and at the same time involving the handle sleeve in a driving rod matched with the handle part of the external explosion-proof distribution box, if the explosion-proof distribution box is installed and tripped due to leakage, after the leakage condition is relieved, the explosion-proof distribution box can drive the driving rod on the handle mechanism through the external handle part to drive the circuit breaker side handle to close, and the synchronous driving rod can push the leakage protection module side handle to close through the joint closing part involved on the handle mechanism while closing the circuit breaker side handle through the handle sleeve, thereby making it possible for the assembled leakage circuit breaker and its independent leakage protection module to carry out convenient closing of the independent control opening and closing operating handle, thereby realizing the convenience and reliability of the operation of the assembled leakage circuit breaker installed in the explosion-proof distribution box.

[0009] The utility model is further configured that an outer protrusion is formed on the closing side and the opening side of the circuit breaker side handle respectively, and the handle cover includes a circuit breaker side handle matching portion distributed on the side away from the driving rod, and the circuit breaker side handle matching portion includes an inner recess formed in the circuit breaker side handle matching portion and adapted to the outer protrusion, and the handle cover is installed on the circuit breaker side handle through the matching of the outer protrusion and the inner recess; an inner recess is formed on the closing side and the opening side of the circuit breaker side handle respectively, and the handle cover includes a circuit breaker side handle matching portion distributed on the side away from the driving rod, and the circuit breaker side handle matching portion includes an outer protrusion formed in the circuit breaker side handle matching portion and adapted to the inner recess, and the handle cover is installed on the circuit breaker side handle through the matching of the outer protrusion and the inner recess.

[0010] Through the above arrangement, the handle sleeve can be reliably installed and limited on the circuit breaker side handle, and there will be no accidental falling off when the handle sleeve drives the circuit breaker to perform the required opening and closing actions due to unreliable arrangement. At the same time, the outer protrusion and inner recess on the matching part of the circuit breaker side handle are used to limit the circuit breaker side handle. The circuit breaker side handle or the matching part of the circuit breaker side handle can be installed arbitrarily, that is, when the outer protrusion is installed on the circuit breaker side handle, the inner recess is installed on the matching part of the circuit breaker side handle, and when the inner recess is installed on the circuit breaker side handle, the outer protrusion is installed on the matching part of the circuit breaker side handle. This greatly improves the limitation of the upper limit of the circuit breaker side handle on the matching part of the circuit breaker side handle.

[0011] The utility model is further configured such that the matching portion of the circuit breaker side handle also includes a handle sleeve installation limit portion distributed on a side of the handle away from the leakage protection module side handle, and through the handle sleeve installation limit portion, a lateral limit is formed on the circuit breaker side handle to prevent the handle sleeve from falling off.

[0012] Through the above arrangement, the reliable fit between the handle sleeve and the circuit breaker side handle can be further ensured, that is, when the handle sleeve is put on the circuit breaker side handle, the handle sleeve will not exceed the stroke range during the lateral insertion process, causing accidental falling out and affecting the reliability of the fit. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the closing state of the handle mechanism of the specific embodiment of the utility model on the assembled residual current circuit breaker for mining;

[0014] Figure 2 yes Figure 1 An enlarged schematic diagram of

[0015] Figure 3 It is a schematic diagram of the opening state of the handle mechanism of the specific embodiment of the utility model on the assembled residual current circuit breaker for mining;

[0016] Figure 4 yes Figure 3 An enlarged schematic diagram of

[0017] Figure 5 It is a schematic diagram of the explosion state of the handle mechanism of a specific embodiment of the utility model;

[0018] Figure 6 yes Figure 5 An enlarged schematic diagram of

[0019] Figure 7 It is a three-dimensional schematic diagram of a handle cover of a specific embodiment of the utility model;

[0020] Figure 8 yes Figure 7An enlarged schematic diagram of the indicated area in part B;

[0021] Fig. 9 yes Figure 7 A is an enlarged schematic diagram of the indicated area. DETAILED DESCRIPTION

[0022] like Figure 1-9 As shown, the specific embodiment of the utility model is a handle mechanism for convenient closing of a mining assembled leakage circuit breaker, including a circuit breaker side handle 3, a leakage protection module side handle 1, a handle sleeve 2 adapted to the circuit breaker side handle 3 and installed on the circuit breaker side handle 3, and a joint closing portion 22 distributed on the closing side b and extending toward one side of the leakage protection module side handle 1. The circuit breaker side handle 3 includes a closing side b and an opening side a. The handle sleeve 2 is formed with a driving rod 21 for adapting to the handle part of an external explosion-proof distribution box relative to the other side adapted to the circuit breaker side handle 3.

[0023] During the closing stage of the handle part of the external explosion-proof distribution box, the closing part 22 is connected to form a circuit breaker side handle 3 driven by the handle sleeve 2 to close the circuit breaker, and the leakage protection module side handle 1 can be driven to perform the closing action.

[0024] The above-mentioned method involves the handle cover 2 adapted to the handle 3 on the circuit breaker side, and the joint closing part 22 extending to the side of the handle 1 on the leakage protection module side, and at the same time involves the handle cover 2 to involve the driving rod 21 used for the handle part of the external explosion-proof distribution box, so that if the explosion-proof distribution box is installed and tripped due to leakage, after the leakage condition is relieved, the explosion-proof distribution box can drive the driving rod 21 on the handle mechanism through the external handle part to drive the circuit breaker side handle 3 to close, and the synchronous driving rod 21 can push the leakage protection module side handle 1 to close through the joint closing part 22 involved in the handle mechanism while closing the circuit breaker side handle 3 through the handle cover 2, thereby making it possible for the assembled leakage circuit breaker and its independent leakage protection module The operating handle for independent control of opening and closing can be conveniently closed, thereby realizing the convenience and reliability of the operation of the assembled leakage circuit breaker installed in the explosion-proof distribution box.

[0025] like Figure 5-9 As shown, there are two types of matching between the circuit breaker side handle 3 and the circuit breaker side handle matching portion 24:

[0026] First, the closing side b and the opening side a of the circuit breaker side handle 3 are respectively formed with an outer protrusion 31, and the handle cover 2 includes a circuit breaker side handle matching portion 24 distributed on the side away from the driving rod 21, and the circuit breaker side handle matching portion 24 includes an inner recess 23 formed in the circuit breaker side handle matching portion 24 and adapted to the outer protrusion 31, and the handle cover 2 is installed on the circuit breaker side handle 3 through the outer protrusion 31 matching with the inner recess 23;

[0027] Secondly, recessed portions 23 are respectively formed on the closing side b and the opening side a of the circuit breaker side handle 3, and the handle cover 2 includes a circuit breaker side handle matching portion 24 distributed on the side away from the driving rod 21, and the circuit breaker side handle matching portion 24 includes an outer protrusion 31 formed in the circuit breaker side handle matching portion 24 and adapted to the inner recessed portion 23. The handle cover 2 is installed on the circuit breaker side handle 3 through the matching of the outer protrusion 31 and the inner recessed portion 23.

[0028] like Figure 7 , 9 As shown, the above-mentioned circuit breaker side handle matching portion 24 also includes a handle cover installation limit portion 25 distributed on the side away from the leakage protection module side handle 1. Through the handle cover installation limit portion 25, the handle cover 2 is lateral limited on the circuit breaker side handle 3 to prevent it from falling off.

Claims

1. A handle mechanism for convenient closing of a mining assembled leakage circuit breaker, comprising a circuit breaker side handle and a leakage protection module side handle, characterized in that: The circuit breaker side handle includes a closing side and an opening side. The handle mechanism also includes a handle sleeve adapted to the circuit breaker side handle and installed on the circuit breaker side handle, and a joint closing portion distributed on the closing side and extending toward one side of the leakage protection module side handle. The handle sleeve is provided with a driving rod adapted to the handle portion of an external explosion-proof distribution box on the other side thereof relative to the side adapted to the circuit breaker side handle; During the closing stage of the handle part of the external explosion-proof distribution box, the handle sleeve drives the circuit breaker side handle to close through the joint closing part, and at the same time, the leakage protection module side handle can be driven to perform the closing action.

2. The handle mechanism for convenient closing of the assembled leakage circuit breaker for mining use according to claim 1 is characterized in that: The closing side and the opening side of the circuit breaker side handle are respectively formed with external protrusions, and the handle sleeve includes a circuit breaker side handle matching portion distributed on the side away from the driving rod, and the circuit breaker side handle matching portion includes an inner recess formed in the circuit breaker side handle matching portion and adapted to the external protrusions. The handle sleeve is installed on the circuit breaker side handle through the matching of the external protrusions and the inner recesses.

3. The handle mechanism for convenient closing of the assembled leakage circuit breaker for mining use according to claim 1 is characterized in that: The closing side and the opening side of the circuit breaker side handle are respectively formed with recessed portions, the handle sleeve includes a circuit breaker side handle matching portion distributed on the side away from the driving rod, the circuit breaker side handle matching portion includes an outer protrusion formed in the circuit breaker side handle matching portion and adapted to the inner recessed portion, and the handle sleeve is installed on the circuit breaker side handle through the matching of the outer protrusion and the inner recessed portion.

4. The handle mechanism for convenient closing of the assembled leakage circuit breaker for mining use according to claim 2 or 3 is characterized in that: The circuit breaker side handle matching portion also includes a handle sleeve installation limit portion arranged on the side of the handle away from the leakage protection module. Through the handle sleeve installation limit portion, the handle sleeve is lateral limited on the circuit breaker side handle to prevent it from falling off.

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