CN221041007U - Block terminal electricity operating mechanism and block terminal - Google Patents

Abstract

The utility model relates to a distribution box electric operating mechanism and a distribution box; the automatic switching device comprises a travel switch, a transmission crawler belt and an executing piece for opening and closing a distribution box switch, wherein the executing piece is arranged on the transmission crawler belt, the transmission crawler belt is connected with a driving mechanism for driving the transmission crawler belt to move so as to drive the executing piece to switch between a switching-off position and a switching-on position, the transmission crawler belt is also connected with a counterweight, the counterweight is matched with the corresponding travel switch to stop the driving mechanism at the switching-on position and the switching-off position. The electric operating mechanism is simple in structure and convenient to operate, the driving mechanism drives the executing piece to switch on and off the switch between the switch-on position and the switch-off position for the distribution box, the travel switch is used for limiting and indicating the switch state, the electric operating function of the distribution box can be realized, the cost is effectively reduced, the intelligent requirement of remote control on and off the switch-off is met, and the reliability of construction electricity is improved.

Description

Block terminal electricity operating mechanism and block terminal

Technical Field

The utility model relates to the technical field of distribution box equipment, in particular to a distribution box electric operating mechanism and a distribution box.

Background

The distribution box is commonly used electrical equipment, has the characteristics of small volume, simple and convenient installation, special technical performance, fixed position, unique configuration function, no site limitation and the like, is relatively common in application, stable and reliable in operation, high in space utilization rate and small in occupied area. The construction distribution box is mainly used for a construction site distribution system, and along with the intelligent development of a power supply and distribution system, the construction site power utilization system is also becoming intelligent day by day, wherein the intelligent authorization is realized by the functions of power reception, remote control switching-on and switching-off and the like, and an electric operating mechanism of a circuit breaker cannot be disconnected. The existing plastic shell switch electric operating mechanism is complex in structure, high in cost, not suitable for power distribution and use in construction sites, and under the condition of normal switch faults, the automatic tripping of a switch handle is insensitive, so that potential safety hazards exist. Accordingly, there is a need for a block terminal electrical operator and a block terminal that address the above-described issues.

Disclosure of utility model

In order to solve the problems, on the one hand, the utility model provides an electric operation mechanism of a distribution box, which comprises a travel switch, a transmission crawler belt and an execution piece for opening and closing the switch of the distribution box, wherein the execution piece is arranged on the transmission crawler belt, the transmission crawler belt is connected with a driving mechanism for driving the transmission crawler belt to move so as to drive the execution piece to switch between a switching-off position and a switching-on position, the transmission crawler belt is also connected with a counterweight, and the counterweight is matched with the corresponding travel switch to stop the driving mechanism at the switching-on position and the switching-off position.

Further, the driving mechanism further comprises a closing motor and a separating brake motor, the closing motor and the separating brake motor are respectively arranged at two ends of the transmission crawler belt, and the executing piece and the counterweight are positioned between the closing motor and the separating brake motor.

Further, the number of the travel switches is two, the number of the counterweights is two and is set in one-to-one correspondence with the travel switches, the two counterweights are respectively arranged on two sides of the executing piece, the two travel switches are respectively arranged on one side, away from the executing piece, of the corresponding counterweights, and the movement direction of the counterweights is opposite to that of the executing piece.

Further, the control circuit comprises a closing loop and a separating brake loop which are connected in parallel, wherein the closing loop is connected with a closing switch and an auxiliary contact of a closing motor, the separating brake loop is connected with a separating brake switch and an auxiliary contact of a separating brake motor, one ends of the closing loop and the separating brake loop are connected with KMa ends, and the other ends of the closing loop and the separating brake loop are connected with KMn ends.

Further, the control circuit further comprises a closing indication loop and a separating brake indication loop which are connected in parallel, the travel switch is arranged on the closing indication loop and the separating brake indication loop, the travel switch on the closing indication loop is mechanically interlocked with the auxiliary contact of the closing motor and only one of the travel switch is connected, and the travel switch on the separating brake indication loop is mechanically interlocked with the auxiliary contact of the separating brake motor and only one of the travel switch and the separating brake motor is connected.

Further, the executing piece is also connected with a reset mechanism, the reset mechanism comprises a fixed plate and an elastic piece, and the executing piece is connected to the fixed plate through the elastic piece.

Further, the device also comprises an upright post, and the fixing plate is fixedly connected to the upright post.

Further, the elastic piece comprises two springs, the two springs are respectively arranged at two ends of the fixed plate, and the executing piece is connected to one end, far away from the fixed plate, of the springs.

Further, the device also comprises a shell for accommodating the travel switch, the transmission crawler belt, the executing piece and the driving mechanism, wherein the shell is provided with an indicator lamp and a molded case switch.

On the other hand, the utility model also provides a distribution box, which comprises a box body, a circuit breaker and an electric operating mechanism, wherein the circuit breaker is arranged in the box body, the electric operating mechanism is connected with the circuit breaker, and the electric operating mechanism is the distribution box electric operating mechanism.

Compared with the prior art, the utility model has the following beneficial effects due to the adoption of the technical scheme:

1) The distribution box electric operating mechanism provided by the utility model is simple in structure and convenient to operate, the driving mechanism drives the executive component to switch on/off operation for the distribution box between the on/off position and the on/off position, and the travel switch is used for limiting and indicating the state of the switch, so that the distribution box electric operating function can be realized, the cost is effectively reduced, the intelligent requirement of remote control on/off is met, and the reliability of construction electricity is improved;

2) The electric operating mechanism of the distribution box is provided with the reset mechanism, so that the executing piece can be disconnected through the internal structure under the condition of normal switch faults, the reset mechanism is added with an acting force, the disconnection of the switch is accelerated, and the electric operating mechanism does not influence the normal fault actions.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an electrical operation mechanism of a distribution box (an executing piece is located at a closing position);

FIG. 2 is a schematic structural diagram of an electrical operation mechanism of a power distribution box (an executing piece is positioned at a brake separating position);

Fig. 3 is a schematic diagram of the overall structure of the electric operation mechanism of the distribution box provided by the utility model;

Fig. 4 is a front view of the electric operation mechanism of the distribution box (the executing piece is positioned at the closing position);

FIG. 5 is a front view of the electrical operation mechanism of the electrical box (the actuator is in the opening position);

fig. 6 is a circuit diagram of a control module of the electric operation mechanism of the distribution box.

1-An actuator; 2-a switch handle; 3-a brake-separating travel switch; 4-closing travel switch; 5-a first counterweight; 6-a second counterweight; 7-a transmission crawler belt; 8-switching-on motor; 9-a brake separating motor; 10-fixing plates; 11-an elastic member; 12-stand columns; 13-a housing; 14-plastic shell switch; 15-a closing indicator lamp; 16-brake-separating indicator lamp; 17-box body.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present utility model are included in the protection scope of the present utility model. In the drawings, the size and relative sizes of certain parts may be exaggerated for clarity.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected" and "coupled" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be used in any form, such as directly or indirectly through an intermediate medium, or may be used in any form of communication between two elements or in any form of interaction between two elements, and the terms are specifically understood by those of ordinary skill in the art.

In the description of the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "center", "horizontal", "vertical", "top", "bottom", "inner", "outer", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, in the description of the present utility model, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not necessarily for indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly.

Example 1

As shown in fig. 1-3 of the specification, the utility model provides an electric operation mechanism of a distribution box, which comprises a travel switch, a transmission crawler 7 and an execution piece 1 for opening and closing the switch of the distribution box, wherein the execution piece 1 is connected to the transmission crawler 7, the transmission crawler 7 is connected with a driving mechanism for driving the execution piece 1 to switch between a switching-off position and a switching-on position, the driving mechanism is connected with a counterweight, and the counterweight is matched with the corresponding travel switch when the switching-on position and the switching-off position, so that the driving mechanism stops running.

Specifically, the electric operating mechanism of the embodiment is applicable to a distribution box, and the distribution box is preferably a construction distribution box; the actuating part 1 is connected with a switch handle 2 of a circuit breaker of the distribution box, the actuating part 1 drives the switch handle 2 to switch between a closing position and a breaking position under the drive of a driving mechanism, the closing and breaking of the circuit breaker are realized, the construction power distribution remote control function is realized, and the safety of electricity consumption is improved.

Preferably, the executing piece 1 and the switch handle 2 can be of a split type or an integral type structure, when the existing construction distribution box is modified and an electric operating mechanism is additionally arranged, the executing piece 1 and the switch handle 2 are of a split type structure, the executing piece 1 and the switch handle 2 are connected, and meanwhile, the split type structure is convenient to overhaul and maintain; in some specific occasions, the executing piece 1 and the switch handle 2 can be made into a whole, so that the reliability of the switching-on and switching-off operation is improved.

Preferably, the travel switch comprises a brake-separating travel switch 3 and a brake-closing travel switch 4, the counterweight comprises a first counterweight 5 and a second counterweight 6, the first counterweight 5 is arranged corresponding to the brake-separating travel switch 3 and is used for limiting and indicating a switch state in brake-separating operation, and the second counterweight 6 is arranged corresponding to the brake-closing travel switch 4 and is used for limiting and indicating a switch state in brake-closing operation; the relative positions of the travel switch and the counterweight can be set according to actual requirements, and only one setting condition is described in the embodiment.

As one embodiment, as shown in fig. 4 and 5 of the specification, the driving mechanism includes a closing motor 8 and a separating motor 9 for driving the driving track 7 to move, the closing motor 8 and the separating motor 9 are respectively disposed at two ends of the driving track 7, the executing member 1, the first counterweight 5 and the second counterweight 6 are all connected to the driving track 7, and rotate along with the driving track 7, and the first counterweight 5 and the second counterweight 6 are respectively disposed at the upper and lower sides of the executing member 1; specifically, the first counterweight 5 is disposed above the executing member 1, the opening travel switch 3 is disposed above the first counterweight 5 and limits the travel of the first counterweight 5, the first counterweight 5 moves to the opening travel switch 3 to stop moving upwards, the second counterweight 6 is disposed below the executing member 1, the closing travel switch 4 is disposed below the second counterweight 6 and limits the second counterweight 6, and the second counterweight 6 moves to the closing travel switch 4 to stop moving downwards.

In some embodiments, the travel switch may also be disposed between the counterweight and the actuator, and may be configured according to actual requirements.

Specifically, two ends of the transmission track 7 are respectively wound around the closing motor 8 and the opening motor 9 and then are closed inwards, the first counterweight 5 and the second counterweight 6 are respectively connected to two end parts of the transmission track 7, the moving directions of the first counterweight 5 and the second counterweight 6 are opposite to the actuating member 1, the distance between the first counterweight 5 and the second counterweight 6 is smaller than the distance between the closing motor 8 and the opening motor 9, and a connecting rod can be arranged between the two counterweights for facilitating the movement of the counterweights; of course, the drive track 7 may also be an endless track, which can move the actuating element 1, the first counterweight 5 and the second counterweight 6.

When the electric vehicle is switched on, the switching-on motor 8 is reversed, the actuating member 1 is driven to move upwards through the transmission crawler belt 7, the first counterweight 5 and the second counterweight 6 move downwards, the second counterweight 6 moves to the switching-on travel switch 4, the switching-on motor stops rotating, and at the moment, the actuating member 1 moves to a switching-on position, and switching-on is completed; when the brake is released, the brake release motor 9 positively drives the executing piece 1 to move downwards through the transmission crawler belt 7, the first counterweight 5 and the second counterweight 6 move upwards, the first counterweight 5 moves to the brake-on travel switch 4, the brake release motor 9 stops rotating, the brake release is completed, and at the moment, the executing piece 1 moves to a brake release position.

Preferably, the actuator 1 is further connected with a reset mechanism, the reset mechanism comprises a fixing plate 10 and an elastic member 11, and the actuator 1 is connected to the fixing plate 10 through the elastic member 11. The elastic element 11 can drive the actuator 1 to reset rapidly after the actuator 1 loses the acting force.

Preferably, the electric operating mechanism further comprises a stand column 12, the fixing plate 10 is fixedly connected to the stand column 12, further, the executing piece 1 is sleeved on the stand column 12 and can move up and down along the stand column 12, and the first counterweight 5 and the second counterweight 6 are sleeved on the stand column 12 and can move up and down along the stand column 12. Preferably, the first counterweight has a weight greater than the weight of the second counterweight.

Preferably, the elastic member 11 includes two springs, the two springs are separately disposed at two ends of the fixing plate 10, and the actuating member 1 is connected to one end of the springs away from the fixing plate 10. When the actuator 1 is positioned at the opening position, the spring is in a normal state or a slight compression state; when the executing piece 1 is positioned at the closing position, the spring is in a stretching state, under the condition of normal switch failure, the switch handle 2 is disconnected through the internal structure, the spring recovers elasticity, the spring can accelerate the movement of the executing piece 1 towards the opening position, the switch is disconnected in an accelerating way, the electric operating mechanism does not influence the conventional failure action, the automatic tripping sensitivity of the conventional failure of the switch handle 2 is ensured, and the functional requirement is met.

Preferably, the device further comprises a shell 13 for accommodating the travel switch, the control module, the executing piece 1 and the driving mechanism, wherein an indicator lamp and a molded case switch 14 are arranged on the shell 13, and the molded case switch 14 is connected with a circuit breaker in the distribution box and used for displaying the closing and opening states; the indicator lamp comprises a closing indicator lamp 15 and a separating brake indicator lamp 16, wherein the closing indicator lamp 15 is bright to display red when closed, and the separating brake indicator lamp 16 is bright to display green when separated.

Preferably, as shown in fig. 6 of the specification, the circuit structure diagram of the control circuit is shown, the control circuit comprises a closing loop and a separating loop which are connected in parallel, the closing loop is connected with a closing switch and an auxiliary contact of a closing motor, the separating loop is connected with a separating switch and an auxiliary contact of a separating motor, one ends of the closing loop and the separating loop are connected with KMa ends, and the other ends of the closing loop and the separating loop are connected with a KMn end for connecting a power supply.

Preferably, the control circuit further comprises a closing indication loop and a separating indication loop which are connected in parallel, the closing travel switch is connected to the closing indication loop, the closing indication loop is also connected with a closing indication lamp 15, and the closing travel switch is mechanically interlocked with the auxiliary contact of the closing motor and only one of the closing travel switch and the auxiliary contact of the closing motor is connected; the brake separating travel switch is connected to the brake separating indication loop, the brake separating indication loop is also connected with a brake separating indicator lamp 16, and the brake separating travel switch is mechanically interlocked with the brake separating motor auxiliary contact and only one of the brake separating travel switch and the brake separating motor auxiliary contact is connected.

The automatic switching device comprises a controller, a relay and an alternating current contactor, wherein the relay is connected with a signal output end of the controller, the controller can be a single-chip microcomputer or a PLC (programmable logic controller), the controller receives a remote control signal when the single-chip microcomputer controller is in remote switching-on, the relay receives an action signal of the controller to control the alternating current contactor, a switching-on switch S1 is switched on and a switching-on loop is switched on, a switching-on motor 8 acts, a transmission crawler 7 is driven by the switching-on motor 8 to move, when a second counterweight 6 moves to a switching-on travel switch 4, the switching-on travel switch 4 is closed, a switching-on indicator lamp 15 is on, the switching-on travel switch 4 is mechanically interlocked with an auxiliary contact of the switching-on motor, the auxiliary contact of the switching-on motor is switched off when the switching-on travel switch 4 is closed, and the switching-on motor 8 stops rotating to finish switching-on; when the remote control brake is opened, the relay receives an action signal of the controller, the alternating-current contactor is controlled, the brake opening switch S2 is switched on, the brake opening loop is switched on, the brake opening motor 9 drives the transmission crawler belt 7 to rotate, when the first counterweight 5 moves to the brake opening travel switch 3, the brake opening travel switch 3 is closed, the brake opening indicator lamp 16 is on, the brake opening travel switch 3 is mechanically interlocked with the brake opening motor auxiliary contact, the brake opening travel switch 16 is closed and simultaneously opens the brake opening motor auxiliary contact, and the brake opening motor 9 stops rotating to finish brake opening.

Example 2

The utility model also provides a distribution box, as shown in figure 3 of the specification, comprising a box body 17, a circuit breaker and an electric operating mechanism, wherein the circuit breaker is arranged in the box body 17, the box body comprises a shell of the electric operating mechanism, the electric operating mechanism is connected with the circuit breaker, and the electric operating mechanism is the distribution box electric operating mechanism in the embodiment 1.

And all that is not described in detail in this specification is well known to those skilled in the art.

It will be appreciated by those skilled in the art that the utility model can be embodied in many other specific forms without departing from the spirit or scope of the utility model. Although an embodiment of the present utility model has been described, it is to be understood that the utility model is not limited to this embodiment, and that variations and modifications may be effected by one skilled in the art within the spirit and scope of the utility model as defined in the appended claims.

Claims (10)

1. The utility model provides a block terminal electricity operating mechanism, its characterized in that includes travel switch, transmission track and is used for opening and close the executive component of block terminal switch, the executive component is located on the transmission track, the transmission track is connected with and is used for driving the transmission track and removes in order to drive the actuating mechanism that the executive component switches between separating brake position and closing brake position, still be connected with on the transmission track and to weigh in closing brake position and separating brake position, weigh to and corresponding travel switch cooperation stop actuating mechanism.

2. The electric block terminal operation mechanism according to claim 1, wherein the driving mechanism further comprises a closing motor and a separating motor, the closing motor and the separating motor are respectively arranged at two ends of the transmission crawler, and the executing piece and the counterweight are arranged between the closing motor and the separating motor.

3. The electric operation mechanism of the distribution box according to claim 2, wherein the number of the travel switches is two, the number of the counterweights is two and is set in one-to-one correspondence with the travel switches, the two counterweights are respectively arranged at two sides of the executing piece, the two travel switches are respectively arranged at one side, away from the executing piece, of the corresponding counterweights, and the movement direction of the counterweights is opposite to that of the executing piece.

4. The electrical operation mechanism of the distribution box according to claim 2, further comprising a control circuit, wherein the control circuit comprises a closing loop and a separating brake loop which are connected in parallel, the closing loop is connected with a closing switch and an auxiliary contact of a closing motor, the separating brake loop is connected with a separating brake switch and an auxiliary contact of a separating brake motor, one ends of the closing loop and the separating brake loop are connected with KMa ends, and the other ends of the closing loop and the separating brake loop are connected with KMn ends.

5. The electrical box operator of claim 4 wherein the control circuit further comprises a closing indication circuit and a opening indication circuit in parallel, the travel switch being disposed on the closing indication circuit and the opening indication circuit, the travel switch on the closing indication circuit being mechanically interlocked with and only one of the closing motor auxiliary contacts, the travel switch on the opening indication circuit being mechanically interlocked with and only one of the opening motor auxiliary contacts.

6. The electrical box operator of claim 1 wherein the actuator is further coupled to a reset mechanism, the reset mechanism including a fixed plate and an elastic member, the actuator being coupled to the fixed plate via the elastic member.

7. The electrical box operator of claim 6 further comprising a post, wherein the securing plate is fixedly secured to the post.

8. The electrical box operator of claim 6 wherein the spring member includes two springs, the two springs being disposed at opposite ends of the fixed plate, the actuator member being connected to an end of the springs remote from the fixed plate.

9. The electrical control device of claim 1, further comprising a housing for receiving the travel switch, the drive track, the actuator, and the drive mechanism, wherein the housing is provided with an indicator light and a molded case switch.

10. An electrical box comprising a box body, a circuit breaker and an electrical operating mechanism, wherein the circuit breaker is arranged in the box body, and the electrical operating mechanism is connected with the circuit breaker.