Opening and closing mechanism

Abstract

The utility model relates to the field of high-voltage electrical technology, and discloses an opening and closing mechanism, which comprises a machine box, two groups of symmetrically arranged oil tanks are fixedly connected to the top of the machine box, first insulating blocks are fixedly connected to the tops of the oil tanks, second insulating blocks are fixedly connected to the bottoms of the oil tanks, and first fixed binding posts are fixedly connected in the first insulating blocks. The first fixed binding post is fixedly connected with a first connector lug, a telescopic conductive column is slidably connected into the second insulating block, the first fixed binding post is matched with the telescopic conductive column, the bottom of the machine box is fixedly connected with a second fixed binding post, and one end of the second fixed binding post penetrates through the machine box to be fixedly connected with a second connector lug. According to the utility model, the switch-on and switch-off of the circuit are controlled through the telescopic conducting rod, the arc extinguishing time is reduced through the flowing of the fast transformer oil, and meanwhile, the heat generated by the arc is absorbed through the fast transformer oil, so that the contact is prevented from being burnt by high temperature, and the safety of equipment is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to high -voltage electrical technical field, concretely is a kind of opening and closing mechanism. BACKGROUND

[0002] In the electrical equipment of contact, the process of contact current connection and disconnection is often accompanied by arc generation and extinguishing. Arc is a form of gas discharge, when the control equipment passing through line opens or closes the circuit with voltage exceeding 10V and current exceeding 0.5A, a group of extremely high temperature, extremely strong brightness and conductive gas will be generated in the contact gap, which is called arc. Since arc is mainly generated when the contact disconnects the circuit, high temperature will burn the contact and insulation, and in serious cases, it can even cause interphase short circuit, electrical explosion, thereby causing fire and endangering the safety of personnel and equipment. SUMMARY

[0003] The utility model aims at providing a kind of opening and closing mechanism to solve the problems raised in the above background.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] A kind of opening and closing mechanism, including machine box, two groups of symmetrical oil tanks are fixedly connected on the top of machine box, first insulating block is fixedly connected on the top of oil tank, second insulating block is fixedly connected on the bottom of oil tank, first fixed terminal post is fixedly connected in the first insulating block, first terminal head is fixedly connected on first fixed terminal post, telescopic conductive column is slidably connected in the second insulating block, first fixed terminal post and telescopic conductive column are mutually matched, second fixed terminal post is fixedly connected on the bottom of machine box, second terminal head is fixedly connected on the one end of second fixed terminal post and passes through machine box, fixed cylinder is fixedly connected on the inner wall of machine box, sliding rod is slidably connected in fixed cylinder, connecting plate is fixedly connected on sliding rod and passes through fixed cylinder, second spring is arranged between connecting plate and the inner wall of machine box and is sleeved on sliding rod and the outer wall of fixed cylinder, insulating sliding block is fixedly connected on the both sides of connecting plate, conductive rod is arranged in insulating sliding block, second fixed terminal post, telescopic conductive column and conductive rod are mutually matched, sliding chute is arranged on the side of insulating sliding block close to telescopic conductive column, telescopic conductive column is slidably arranged in sliding chute, sliding installation groove is arranged on the side of insulating sliding block close to second fixed terminal post, second fixed terminal post is slidably arranged in sliding installation groove.

[0006] As a further scheme of the utility model: the telescopic conductive column is fixedly connected with insulating baffle, and the first spring is arranged between the insulating baffle and the second insulating block and is sleeved on the telescopic conductive column.

[0007] As a further scheme of the utility model: oil inlet is arranged on the side of the top of oil tank.

[0008] As a further scheme of the utility model: the oil tank top other side is provided with pressure relief valve.

[0009] As a further scheme of the utility model: the sliding rod is fixedly connected with second electromagnet, second electromagnet is parallelly connected with second fixed terminal post, the fixed cylinder is fixedly connected with first electromagnet, first electromagnet is serially connected with first fixed terminal post, and first electromagnet and second electromagnet are opposite to the magnetic pole of different names.

[0010] As a further scheme of the utility model: one end of the driving rod is fixedly connected on the connecting plate, and the other end of the driving rod is fixedly connected with the button through the machine box.

[0011] Compared with the prior art, the utility model has the beneficial effects that: the utility model opens and closes the control circuit through the telescopic conductive rod, and reduces arc extinguishing time through the flow of fast transformer oil, and the heat generated by arc is absorbed by fast transformer oil, thereby preventing high-temperature burnout of the contact, and improving the safety of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is a structure diagram of a kind of opening and closing mechanism in the utility model.

[0013] Fig. 2 It is a sectional view of a kind of opening and closing mechanism in the utility model.

[0014] Fig. 3 It is a section view of a kind of opening and closing mechanism in the utility model.

[0015] Fig. 4 It is a sectional view of a kind of opening and closing mechanism in the utility model.

[0016] In the drawing: 1-machine box, 2-mounting frame, 3-oil tank, 4-first insulating block, 5-second insulating block, 6-first fixed terminal post, 7-first terminal head, 8-telescopic conductive column, 9-insulating baffle, 10-first spring, 11-fixed cylinder, 12-sliding rod, 13-first electromagnet, 14-second electromagnet, 15-second spring, 16-connecting plate, 17-second fixed terminal post, 18-second terminal head, 19-insulating sliding block, 20-conductive rod, 21-sliding chute, 22-sliding installation groove, 23-driving rod, 24-button, 25-oil inlet, 26-pressure relief valve. DETAILED DESCRIPTION

[0017] Clearly, the described embodiments are merely part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0018] Referring to Figs. 1-4 In the embodiments of the present application, a closing and opening mechanism comprises a box 1, two groups of symmetrical oil tanks 3 are fixedly connected to the top of the box 1, a first insulating block 4 is fixedly connected to the top of the oil tank 3, a second insulating block 5 is fixedly connected to the bottom of the oil tank 3, a first fixed terminal post 6 is fixedly connected in the first insulating block 4, a first terminal head 7 is fixedly connected to the first fixed terminal post 6, a telescopic conductive post 8 is slidingly connected in the second insulating block 5, the first fixed terminal post 6 cooperates with the telescopic conductive post 8, a second fixed terminal post 17 is fixedly connected to the bottom of the box 1, a second terminal head 18 is fixedly connected to one end of the second fixed terminal post 17 through the box 1, a fixed cylinder 11 is fixedly connected to the inner wall of the box 1, a sliding rod 12 is slidingly connected in the fixed cylinder 11, a connecting plate 16 is fixedly connected to the sliding rod 12 through the fixed cylinder 11, a second spring 15 is arranged on the outer wall of the sliding rod 12 and the fixed cylinder 11 between the connecting plate 16 and the inner wall of the box 1, insulating sliding blocks 19 are fixedly connected to the two sides of the connecting plate 16, conductive rods 20 are arranged in the insulating sliding blocks 19, the second fixed terminal post 17, the telescopic conductive post 8 and the conductive rods 20 cooperate with each other, sliding inclined grooves 21 are arranged on the side of the insulating sliding blocks 19 close to the telescopic conductive post 8, the telescopic conductive post 8 is slidingly arranged in the sliding inclined grooves 21, sliding installation grooves 22 are arranged on the side of the insulating sliding blocks 19 close to the second fixed terminal post 17, the second fixed terminal post 17 is slidingly arranged in the sliding installation grooves 22, one end of a driving rod 23 is fixedly connected to the connecting plate 16, a button 24 is fixedly connected to the other end of the driving rod 23 through the box 1, an insulating baffle 9 is fixedly connected to the telescopic conductive post 8, a first spring 10 is arranged on the telescopic conductive post 8 between the insulating baffle 9 and the second insulating block 5, a second electromagnet 14 is fixedly connected to the sliding rod 12, the second electromagnet 14 is connected in parallel with the second fixed terminal post 17, a first electromagnet 13 is fixedly connected in the fixed cylinder 11, the first electromagnet 13 is connected in series with the first fixed terminal post 6, and the first electromagnet 13 and the second electromagnet 14 are opposite to each other with different magnetic poles.

[0019] The utility model discloses a circuit breaker, including fixed cylinder 11, sliding rod 12, second spring 15, connecting plate 16, second fixed wiring post 17, insulating sliding block 19, flexible conductive column 8, sliding inclined slot 21, button 24, driving rod 23, first fixed wiring post 6, second electromagnet 14, first electromagnet 13 and oil tank 3, the sliding rod 12 is connected to the fixed cylinder 11, and the second spring 15 is connected to the connecting plate 16, and the second fixed wiring post 17 is connected to the insulating sliding block 19, and the flexible conductive column 8 is connected to the sliding inclined slot 21, and the button 24 is connected to the driving rod 23, and the first fixed wiring post 6 is connected to the second electromagnet 14, and the second electromagnet 14 is connected to the first electromagnet 13, and the oil tank 3 is connected to the first fixed wiring post 6, when the circuit is connected, the current in the second electromagnet 14 reduces, and the suction force is generated between the opposite magnetic poles between the first electromagnet 13 and the second electromagnet 14, and the suction force between the first electromagnet 13 and the second electromagnet 14 is greater than the elastic pushing force of the second spring 15, the sliding rod 12 and the fixed cylinder 11 are connected fixedly by magnetic attraction, the sliding rod 12 drives the connecting plate 16 to contract and compresses the second spring 15, the connecting plate 16 drives the insulating sliding block 19 to move, the second fixed wiring post 17 and the flexible conductive column 8 are in contact with the conductive rod 20 simultaneously, thereby the circuit is connected, when the circuit is disconnected, the current in the coil of the first electromagnet 13 disappears, the magnetic field in the second electromagnet 14 increases, and the suction force between the second electromagnet 14 and the first electromagnet 13 reduces, the suction force between the first electromagnet 13 and the second electromagnet 14 is less than the elastic pushing force of the second spring 15, the sliding rod 12 and the fixed cylinder 11 lose the connection, the second spring 15 releases the elastic potential energy, and pushes the connecting plate 16 to move away from the fixed cylinder 11, the connecting plate 16 drives the insulating sliding block 19 to move, the second fixed wiring post 17 and the flexible conductive column 8 are out of position with the conductive rod 20, and the circuit is disconnected, and when the circuit needs to be closed again, only needs to press the button 24, and the button 24 drives the connecting plate 16 to reset through the driving rod 23, thereby realizing the reconnection of the circuit.

[0020] In one case of the embodiment, please refer to Figs. 1-4 , the oil tank 3 is provided with an oil inlet 25 on one side of the top, and is provided with a pressure relief valve 26 on the other side of the top, the utility model discloses through the setting of oil inlet 25 injects transformer oil into the oil tank 3, and the oil gas that arc gasification decomposes is discharged through pressure relief valve 26.

[0021] The basic principle and main features of the utility model are shown and described above, and the advantages of the utility model are obvious to those skilled in the art, and the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model, therefore, no matter from which point, the embodiment should be regarded as exemplary, and is non-restrictive, the scope of the utility model is defined by the appended claims instead of the above description, therefore, all changes falling in the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model.No any figure mark in the claims should be regarded as limiting the claim involved.

[0022] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A closing and opening mechanism comprising a casing, characterized in that, The machine box top is fixedly connected with two groups of symmetrically arranged oil tanks, the oil tank top is fixedly connected with a first insulation block, the oil tank bottom is fixedly connected with a second insulation block, the first insulation block is fixedly connected with a first fixed terminal post, the first fixed terminal post is fixedly connected with a first terminal head, the second insulation block is slidably connected with an elastic conductive post, the first fixed terminal post and the elastic conductive post are matched with each other, the machine box bottom is fixedly connected with a second fixed terminal post, one end of the second fixed terminal post is fixedly connected with a second terminal head through the machine box, the machine box inner wall is fixedly connected with a fixed cylinder, the fixed cylinder is slidably connected with a sliding rod, the sliding rod is fixedly connected with a connecting plate through the fixed cylinder, a second spring is arranged between the connecting plate and the machine box inner wall and wrapped on the sliding rod and the fixed cylinder outer wall, the connecting plate two sides are fixedly connected with insulation sliding blocks, the insulation sliding blocks are provided with conductive rods, the second fixed terminal post, the elastic conductive post and the conductive rod are matched with each other, the insulation sliding block side close to the elastic conductive post is provided with a sliding inclined slot, the elastic conductive post is slidably arranged in the sliding inclined slot, the insulation sliding block side close to the second fixed terminal post is provided with a sliding installation slot, and the second fixed terminal post is slidably arranged in the sliding installation slot.

2. The opening and closing mechanism according to claim 1, characterized in that The elastic conductive post is fixedly connected with an insulation baffle, and the insulation baffle and the second insulation block are provided with a first spring wrapped on the elastic conductive post.

3. The opening and closing mechanism according to claim 1, characterized in that, The oil tank top side is provided with an oil inlet.

4. The opening and closing mechanism according to claim 1, characterized in that, The oil tank top other side is provided with a pressure relief valve.

5. The opening and closing mechanism according to claim 1, characterized in that, The sliding rod is fixedly connected with a second electromagnet, the second electromagnet is connected with the second fixed terminal post in parallel, the fixed cylinder is fixedly connected with a first electromagnet, the first electromagnet is connected with the first fixed terminal post in series, and the first electromagnet and the second electromagnet are opposite in the same magnetic pole.

6. The opening and closing mechanism according to claim 1, characterized in that, The connecting plate is fixedly connected with one end of a driving rod, and the other end of the driving rod is fixedly connected with a button through the machine box.

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