CN208142070U - A knife closing device for preventing misoperation of cable distribution box - Google Patents

Abstract

The utility model discloses a close sword device for preventing cable distribution box maloperation, including casing, high tension line post, insulated column, conductor, turning block, insulator spindle, dwang, first spring, contact, wire, fixed block, wind spring, magnet, coil, depression bar, pressure handle, second spring, first switch, electric putter and second switch. The alarm device for preventing illegal operation of the cable distribution box grounding switch is simple in structure and convenient to operate, the rotating rod is blocked by the magnet to rotate, the grounding switch is prevented from being closed when the disconnecting switch is not disconnected, the circuit of an operator is further reminded of not being disconnected, the condition that the system is short-circuited is avoided, economic loss caused by misoperation of the operator is effectively prevented, and life danger is avoided; this cable distribution box earthing switch prevents that illegal operation alarm device from pressing the handle through pressing and making the disconnection of the ground connection switch of the other end, has avoided operating personnel to make a round trip to operate, has saved the time, improves work efficiency.

Description

A knife closing device for preventing misoperation of cable distribution box

technical field

The utility model relates to an alarm device, in particular to a knife closing device for preventing misoperation of a cable distribution box, and belongs to the technical field of electric equipment.

Background technique

The ground knife is the grounding knife switch. It is a knife switch installed in the high-voltage power distribution cabinet for grounding protection after power failure. When the circuit breaker is disconnected, the three-phase short-circuit and grounding of the line is required, and this function of short-circuiting the three-phase circuit and grounding is realized by a set of knife switches, that is, when the circuit breaker is disconnected, the circuit is simultaneously connected to the ground. Three-phase short-circuited and grounded, this switch is a grounded switch.

At present, the grounding knife switch on the market is generally installed on the line of the outlet cabinet to avoid short circuit. However, in actual operation, the operator may forget to disconnect the knife switch, so that the working position is still in the circuit-connected state , It is easy to cause a short circuit of the equipment, and even cause life-threatening; and because the two knife switches are far away, during the operation of the ground knife, it is necessary to go to a remote place for power-off processing, resulting in a waste of time and reducing work efficiency. Therefore, in view of the above problems, a knife closing device for preventing misoperation of the cable distribution box is proposed.

Utility model content

The purpose of this utility model is to provide a knife closing device for preventing misoperation of the cable distribution box in order to solve the above problems.

The utility model achieves the above object through the following technical scheme, a knife closing device for preventing misoperation of the cable distribution box, including a housing, a high-voltage line post and an insulating post, the top of the high-voltage line post is fixedly connected with a conductor, the The bottom end of the conductor is rotatably connected to a rotating block, and the top surface of the rotating block is rotatably connected to an insulating rod, the end of the insulating rod is fixedly connected to the top of one end of the rotating rod, and the bottom of one end of the rotating rod is fixedly connected to A spring; a contact is fixedly connected to the top of the insulating column, a wire is fixedly connected to one side of the contact, a fixed block is fixedly connected to the inner wall of the housing, and a coil spring is fixedly connected to the inside of the fixed block, The top end of the rotating shaft fixedly connected at the center of the coil spring is fixedly connected with the bottom end at the center of the magnet, and a coil is provided on one side of the end of the magnet, and a pressure rod is rotatably connected to the top end of the housing, and the top end of the pressure rod A pressure handle is fixedly connected; one end of the rotating rod is slidably connected with a groove provided on the inner side wall of the housing, and a second spring is fixedly connected in the groove provided by the housing, and the end of the second spring A first switch is fixedly connected, an electric push rod is fixedly connected to the inner bottom of the housing, and the top of the electric push rod corresponds to a second switch.

Preferably, the number of the housings is two, and the two side walls of each of the housings are respectively rotatably connected with two rotating rods, and the bottom ends of the rotating rods located inside each of the housings are respectively fixedly connected with Two first springs and two electric push rods.

Preferably, the number of the insulating posts and the contacts is three, and every two contacts are fixedly connected to the wires, and the two ends of the wires are respectively fixedly connected to the two housings. contacts.

Preferably, the first switch and the second switch are electrically connected to the electric push rod and the coil respectively, and one end of the coil corresponds to a magnet.

Preferably, the insulating rods respectively pass through the casings on the top surfaces of the three rotating blocks, and the surfaces of the insulating rods are in contact with pressing rods.

Preferably, both ends of the coil spring are respectively fixedly connected to the inner wall of the fixed block and the surface of the rotating shaft, and the magnet at the top of the coil spring is rotatably connected to the fixed block.

The beneficial effects of the utility model are:

1. The alarm device for preventing illegal operation of the ground knife of the cable distribution box has a simple structure and is easy to operate. The rotation of the rotating rod is blocked by a magnet, and then the operator is reminded that the line is not disconnected, which avoids damage to the grounding knife switch when the knife switch is not disconnected. Closed to avoid short-circuit in the system, effectively prevent economic losses caused by operator misoperation, and avoid life-threatening.

2. The ground knife of the cable distribution box prevents illegal operation and the alarm device disconnects the ground knife switch at the other end by pressing the handle, which avoids the need for the operator to operate back and forth, saves time and improves work efficiency.

Description of drawings

Fig. 1 is a structural schematic diagram of the first housing of the utility model;

Fig. 2 is a structural schematic diagram of the second housing of the utility model;

Fig. 3 is a side view structural schematic diagram of the first shell of the utility model;

Fig. 4 is a schematic diagram of the local structure at A in Fig. 1 of the utility model.

In the figure: 1. shell, 2. high-voltage line column, 3. insulating column, 4. conductor, 5. rotating block, 6. insulating rod, 7. rotating rod, 8. first spring, 9. contact, 10. Wire, 11, fixed block, 12, coil spring, 13, magnet, 14, coil, 15, pressure rod, 16, pressure handle, 17, second spring, 18, first switch, 19, electric push rod, 20, second switch.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-4, a knife closing device for preventing misoperation of the cable distribution box, including a housing 1, a high-voltage line post 2 and an insulating post 3, the top of the high-voltage line post 2 is fixedly connected with a conductor 4, The conduction is carried out through the conductor 4, the bottom end of the conductor 4 is rotatably connected with a rotating block 5, and the rotation of the rotating block 5 makes the rotating block 5 contact with the contact 9, and the top surface of the rotating block 5 is rotatably connected with an insulating rod 6 , the end of the insulating rod 6 is fixedly connected to the top of one end of the rotating rod 7, and the bottom of one end of the rotating rod 7 is fixedly connected to the first spring 8, so that the rotating block 5 can be restored after the pressure handle 16 is released; A contact 9 is fixedly connected to the top of the insulating column 3, a wire 10 is fixedly connected to one side of the contact 9, a fixed block 11 is fixedly connected to the inner wall of the housing 1, and a coil is fixedly connected inside the fixed block 11. The spring 12 makes the magnet 13 rotate through the elastic potential energy of the coil spring 12, the top of the rotating shaft fixedly connected at the center of the coil spring 12 is fixedly connected with the bottom end of the center of the magnet 13, and the end of the magnet 13 is provided with a coil 14. The top of the housing 1 is rotatably connected to a pressing rod 15, and the top of the pressing rod 15 is fixedly connected to a pressing handle 16; one end of the rotating rod 7 is slidingly connected to the groove provided on the inner side wall of the housing 1, It is convenient to turn the lever 17 to press the first switch 18, and the groove provided by the housing 1 is fixedly connected with the second spring 17, and the end of the second spring 17 is fixedly connected with the first switch 18, and the housing 1 1. An electric push rod 19 is fixedly connected to the inner bottom end, and the top end of the electric push rod 19 corresponds to the second switch 20.

As a technical optimization solution of the present utility model, the number of the housings 1 is two, and the two side walls of each housing 1 are respectively rotatably connected with two rotating rods 7, and are located in each of the housings. Two first springs 8 and two electric push rods 19 are fixedly connected to the bottom ends of the rotating rod 7 inside the body 1, so as to facilitate the opening and closing of the two grounding knife switches.

As a technical optimization scheme of the present utility model, the number of the insulating posts 3 and the contacts 9 is three, and every two contacts 9 are fixedly connected with the wires 10, and the wires 10 The two ends are respectively fixedly connected to the contacts 9 located inside the two housings 1 to facilitate the connection of the two grounding switches.

As a technical optimization solution of the present utility model, the first switch 18 and the second switch 20 are electrically connected to the electric push rod 19 and the coil 14 respectively, and the end of the coil 14 corresponds to the magnet 13 , the generation and stop of the magnetic field of the coil 14 causes the magnet 13 to rotate.

As a technical optimization scheme of the present utility model, the insulating rods 6 respectively pass through the bushings on the top surfaces of the three rotating blocks 5, and the surface of the insulating rods 6 is in contact with a pressure rod 15, which presses the insulating rod 6 .

As a technical optimization scheme of the present utility model, the two ends of the coil spring 12 are respectively fixedly connected to the inner wall of the fixed block 11 and the surface of the rotating shaft, and the magnet 13 at the top of the coil spring 12 is rotatably connected to the fixed block 11 to facilitate Magnet 13 restores after rotating.

When the utility model is in use, first connect the electrical components in the device to an external power supply, press the pressing handle 16 to make the pressing rod 15 rotate, and then make the pressing rod 15 press the insulating rod 6, so that the insulating rod 6 drives the rotating block 5 on the conductor 4 The end is rotated, and the rotation of the rotating block 5 drives the rotating rod 7 to rotate, so that the end of the rotating rod 7 contacts the first switch 18, so that the electric push rod 19 is extended, and the other insulating rod 6 is pushed to rotate, so that the rotating block 5 is in contact with the first switch 18. The contacts 9 are separated, and then the system is powered off. At the same time, the extension of the electric push rod 19 makes the insulating rod 6 press the second switch 20, so that the coil 14 is powered off, and then the magnetic field disappears, so that the magnet 13 is driven by the elasticity of the coil spring 12. The potential energy makes the magnet 13 rotate, and continues to press the pressing handle 16, so that the rotating block 5 contacts with the contact 9, and then the grounding is completed.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to fall within the scope of the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (6)

1. A knife closing device for preventing misoperation of a cable distribution box, comprising a housing (1), a high-voltage line column (2) and an insulating column (3), characterized in that: the top of the high-voltage line column (2) is fixed A conductor (4) is connected, and the bottom end of the conductor (4) is rotatably connected with a rotatable block (5), and the top surface of the rotatable block (5) is rotatably connected with an insulating rod (6), and the insulating rod (6) ) end is fixedly connected with the top of one end of the rotating rod (7), and the bottom of one end of the rotating rod (7) is fixedly connected with a first spring (8); the top of the insulating column (3) is fixedly connected with a contact (9), one side of the contact (9) is fixedly connected with a wire (10), the inner wall of the housing (1) is fixedly connected with a fixed block (11), and the inside of the fixed block (11) is fixedly connected There is a coil spring (12), the top of the rotating shaft fixedly connected at the center of the coil spring (12) is fixedly connected with the bottom end at the center of the magnet (13), and one side of the end of the magnet (13) is provided with a coil (14 ), the top of the housing (1) is rotatably connected to a pressure rod (15), and the top of the pressure rod (15) is fixedly connected to a pressure handle (16); one end of the rotating rod (7) is connected to the housing ( 1) The groove provided on the inner side wall is slidingly connected, and the second spring (17) is fixedly connected in the groove provided by the housing (1), and the end of the second spring (17) is fixedly connected with the first spring (17). A switch (18), an electric push rod (19) is fixedly connected to the inner bottom of the housing (1), and the top of the electric push rod (19) corresponds to a second switch (20). 2. A knife closing device for preventing misoperation of a cable distribution box according to claim 1, characterized in that: the number of the housings (1) is two, each of the housings (1) ) are respectively rotatably connected with two rotating rods (7), and the bottom ends of the rotating rods (7) inside each housing (1) are respectively fixedly connected with two first springs (8) and Two electric push rods (19). 3. A knife closing device for preventing misoperation of a cable distribution box according to claim 1, characterized in that: the number of insulating columns (3) and contacts (9) is three, each The two contacts (9) are fixedly connected to the wires (10), and both ends of the wires (10) are respectively fixedly connected to the contacts (9) inside the two housings (1). 4. A knife closing device for preventing misoperation of the cable distribution box according to claim 1, characterized in that: the first switch (18) and the second switch (20) are respectively electrically connected to the motor The push rod (19) and the coil (14), and the end side of the coil (14) is corresponding to the magnet (13). 5. A knife closing device for preventing misoperation of the cable distribution box according to claim 1, characterized in that: the insulating rods (6) respectively penetrate through the casings on the top surfaces of the three rotating blocks (5) , and the surface of the insulating rod (6) is in contact with the pressure rod (15). 6. A knife closing device for preventing misoperation of a cable distribution box according to claim 1, characterized in that: the two ends of the coil spring (12) are respectively fixedly connected to the inner wall of the fixed block (11) and the surface of the rotating shaft, and the magnet (13) at the top of the coil spring (12) is rotatably connected to the fixed block (11).