Novel isolating switch

Abstract

The utility model discloses a novel disconnecting switch, which belongs to the technical field of disconnecting switches, and comprises a mounting plate and a protection box, the protection box is fixedly connected to the upper surface of the mounting plate, the side surface of the protection box is connected with a box door through a hinge, the side surface of the protection box is provided with a wire inlet groove, and a connecting wire is arranged in the wire inlet groove in a penetrating manner. The beneficial effects are that the novel isolation switch is provided with a knob, a connecting rod, a clamping groove and a clamping block, when circuit maintenance work is carried out, people can push a connecting plate inwards to enable the clamping block to leave the clamping groove, and then rotate the knob to drive the connecting rod and a knife switch to rotate, so that the knife switch leaves a contact, and the circuit maintenance work is completed. The contact between the knife switch and the contact can be disconnected without contacting the knife switch, so that the danger caused by mistaken touch is avoided, then the connecting plate is loosened, the spring rebounds, the clamping block is driven to enter the clamping groove, the knife switch is fixed and prevented from falling off during working, and the safety of maintenance work is further ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of isolating switches, and more specifically, to a novel isolating switch. Background Art

[0002] Isolating switch is a switch device that is mainly used for "isolating power supply, switching operation, connecting and disconnecting small current circuits" without arc extinguishing function. When the isolating switch is in the open position, there is an insulation distance that meets the specified requirements and an obvious disconnection mark between the contacts; when in the closed position, it is a switch device that can carry the current under normal circuit conditions and the current under abnormal conditions (such as short circuit) within a specified time. It is generally used as a high-voltage isolating switch, that is, an isolating switch with a rated voltage of more than 1kV. Its working principle and structure are relatively simple, but due to its large usage and high working reliability requirements, it has a great impact on the design, establishment and safe operation of substations and power plants. The main feature of the isolating switch is that it has no arc extinguishing ability and can only open and close the circuit without load current. When the staff maintains and repairs the circuit, they need to directly contact and pull the gate to disconnect the circuit. This method is likely to cause dangers such as false touch, and the gate and the connecting structure may cause wear and tear over a long period of time, resulting in the gate being unable to remain open continuously, reducing the safety of maintenance. Utility Model Content

[0003] (1) Technical issues to be solved

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a new type of isolating switch, which has the characteristic of realizing gate opening and closing without direct contact.

[0005] (2) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides a new type of isolating switch, including a mounting plate and a protective box, wherein the protective box is fixedly connected to the upper surface of the mounting plate, the side of the protective box is connected to a box door by a hinge, the side of the protective box is provided with a wire feed slot, a connecting wire is passed through the inside of the wire feed slot, the other end of the connecting wire is fixedly connected to a connecting head, the connecting head is fixedly connected to the inside of the protective box, there are three groups of connecting heads, and they are evenly arranged inside the protective box, the side of the connecting head is fixedly connected to a rotating structure, the side of the rotating structure is rotatably connected to a knife, the inside of the protective box is fixedly connected to a contact, the knife matches the contact, the other end of the knife is fixedly connected to a connecting block, the side of the connecting block is passed through There is a connecting rod, an annular groove is provided on the side of the protective box, the connecting rod is slidably connected in the annular groove, an annular guide rail is fixedly connected inside the protective box, one end of the connecting rod is slidably connected inside the annular guide rail, a bearing is fixedly connected to the side of the protective box, a knob is passed through the bearing, a fixing plate is fixedly connected to the side of the knob, the other end of the connecting rod is fixedly connected to the side of the fixing plate, a slot is provided on the side of the knob, there are multiple slots, and they are evenly arranged on the side of the knob, a telescopic rod is fixedly connected to the side of the protective box, the other end of the telescopic rod is fixedly connected to the connecting plate, a spring is sleeved on the surface of the telescopic rod, a block is fixedly connected to the side of the connecting plate, and the block matches the slot.

[0007] When using a new type of isolating switch of the present technical solution, by setting a knob, a connecting rod, a slot and a block, when performing circuit maintenance work, people can push the connecting plate inward to make the block leave the slot, and then rotate the knob to drive the connecting rod and the knife to rotate, so that the knife leaves the contact, and the contact between the knife and the contact can be disconnected without touching the knife, thereby avoiding danger caused by accidental contact, and then release the connecting plate, the spring rebounds, thereby driving the block to enter the slot, thereby fixing the knife, avoiding the knife from falling during work, and further ensuring the safety of maintenance work.

[0008] Furthermore, a sleeve is fixedly connected to the upper surface of the protective box, a fixing frame is fixedly connected inside the sleeve, a fan is fixedly connected to the upper surface of the fixing frame, a dust net is fixedly connected to the upper surface of the sleeve, an exhaust port is opened on the side of the box door, and a rain shield is fixedly connected to the side of the exhaust port.

[0009] Furthermore, a sensor is fixedly connected to the side of the mounting plate, an alarm is arranged on the side of the sensor, and the alarm is fixedly connected to the side of the mounting plate. There are two alarms in total and they are symmetrically arranged on both sides of the sensor.

[0010] Furthermore, a slide groove is provided on the upper surface of the mounting plate, a slider is slidably connected in the slide groove, a protective shell is fixedly connected to the upper end of the slider, and a first handle is fixedly connected to the side of the protective shell.

[0011] Furthermore, a second handle is fixedly connected to the side of the box door, and a status display panel is fixedly connected to the side of the box door.

[0012] Furthermore, the connecting block, connecting rod, connecting plate and knob are all made of insulating materials.

[0013] (3) Beneficial effects

[0014] In summary, the utility model has the following beneficial effects:

[0015] 1. This new type of isolating switch is provided with a knob, a connecting rod, a card slot and a card block. When performing circuit maintenance work, people can push the connecting plate inward to make the card block leave the card slot, and then rotate the knob to drive the connecting rod and the knife to rotate, so that the knife leaves the contact, and the contact between the knife and the contact can be disconnected without touching the knife, thereby avoiding danger caused by accidental contact, and then loosen the connecting plate, the spring rebounds, thereby driving the card block into the card slot, thereby fixing the knife, preventing the knife from falling during work, and further ensuring the safety of maintenance work;

[0016] 2. This new type of isolating switch is provided with a fan, a dust screen, an exhaust port and a rain shield. When in use, people can control the operation of the fan, and the fan drives the cold air to enter the protection box through the sleeve, and the hot air is discharged through the exhaust port, so that the air inside the protection box circulates to dissipate heat, thereby improving the stability of the device;

[0017] 3. This new type of isolating switch is equipped with sensors and alarms. When the isolating switch is in normal use, when unrelated personnel or birds approach the protective box, the sensor will sense that someone is approaching and the alarm will sound to drive them away, thereby improving the safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the drawings required for describing the specific implementation or the prior art will be briefly introduced below. Obviously, the drawings described below are only one implementation of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the structure of the utility model in a frontal perspective;

[0020] Figure 2 It is a schematic diagram of the structure when the utility model is used;

[0021] Figure 3 It is a schematic diagram of the structure of the utility model in a frontal three-dimensional cross-sectional view;

[0022] Figure 4 It is a schematic structural diagram of a sleeve cross-section in the utility model.

[0023] The markings in the accompanying drawings are:

[0024] 1. Mounting plate; 2. Protective box; 3. Box door; 4. Wire inlet slot; 5. Connecting wire; 6. Connecting head; 7. Rotating structure; 8. Switch; 9. Contact; 10. Connecting block; 11. Connecting rod; 12. Annular groove; 13. Annular guide rail; 14. Bearing; 15. Knob; 16. Fixing plate; 17. Slot; 18. Telescopic rod; 19. Spring; 20. Connecting plate; 21. Block; 22. Sleeve; 23. Fixing bracket; 24. Fan; 25. Dust net; 26. Rain shield; 27. Sensor; 28. Alarm; 29. ​​Slide; 30. Sliding block; 31. Protective shell; 32. First handle; 33. Second handle; 34. Status display board; 35. Exhaust vent. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the utility model easy to understand, the technical scheme in the specific implementation mode of the utility model is clearly and completely described below to further illustrate the utility model. Obviously, the specific implementation mode described is only a part of the implementation mode of the utility model, rather than all styles.

[0026] Example:

[0027] The following is combined with Figure 1-4 The utility model is described in further detail.

[0028] See also Figure 1-4The utility model provides a technical solution: a new type of isolating switch, including a mounting plate 1 and a protection box 2, the protection box 2 is fixedly connected to the upper surface of the mounting plate 1, the side of the protection box 2 is connected to a box door 3 through a hinge, the side of the protection box 2 is provided with a wire feed slot 4, a connecting wire 5 is passed through the inside of the wire feed slot 4, the other end of the connecting wire 5 is fixedly connected to a connector 6, the connector 6 is fixedly connected to the inside of the protection box 2, there are three groups of connectors 6, and they are evenly arranged inside the protection box 2, the side of the connector 6 is fixedly connected to a rotating structure 7, the side of the rotating structure 7 is rotatably connected to a knife switch 8, the inside of the protection box 2 is fixedly connected to a contact 9, the knife switch 8 matches the contact 9, the other end of the knife switch 8 is fixedly connected to a connecting block 10, the side of the connecting block 10 is passed through a connecting rod 11, the side of the protection box 2 An annular groove 12 is provided on the surface, and a connecting rod 11 is slidably connected in the annular groove 12. An annular guide rail 13 is fixedly connected inside the protective box 2, and one end of the connecting rod 11 is slidably connected inside the annular guide rail 13. A bearing 14 is fixedly connected to the side of the protective box 2, and a knob 15 is passed through the bearing 14. A fixing plate 16 is fixedly connected to the side of the knob 15. The other end of the connecting rod 11 is fixedly connected to the side of the fixing plate 16. A slot 17 is provided on the side of the knob 15. There are multiple slots 17, which are evenly arranged on the side of the knob 15. A telescopic rod 18 is fixedly connected to the side of the protective box 2, and the other end of the telescopic rod 18 is fixedly connected to a connecting plate 20. A spring 19 is sleeved on the surface of the telescopic rod 18, and a block 21 is fixedly connected to the side of the connecting plate 20, and the block 21 matches the slot 17.

[0029] By adopting the above technical solution, when performing circuit maintenance work, people can push the connecting plate 20 inward to make the block 21 leave the slot 17, and then rotate the knob 15 to drive the connecting rod 11 and the knife 8 to rotate, so that the knife 8 leaves the contact 9, and the contact between the knife 8 and the contact 9 can be disconnected without touching the knife 8, thereby avoiding danger caused by accidental contact, and then release the connecting plate 20, the spring 19 rebounds, thereby driving the block 21 into the slot 17, thereby fixing the knife 8, avoiding the knife 8 from falling during work, and further ensuring the safety of maintenance work.

[0030] Specifically, a sleeve 22 is fixedly connected to the upper surface of the protective box 2, a fixing frame 23 is fixedly connected inside the sleeve 22, a fan 24 is fixedly connected to the upper surface of the fixing frame 23, a dust net 25 is fixedly connected to the upper surface of the sleeve 22, an exhaust port 35 is opened on the side of the box door 3, and a rain shield 26 is fixedly connected to the side of the exhaust port 35.

[0031] By adopting the above technical solution, when in use, people can control the operation of the fan 24, and the fan 24 drives the cold air to enter the protective box 2 through the sleeve 22, and the hot air is discharged through the exhaust port 35, so that the air inside the protective box 2 can circulate to dissipate heat, thereby improving the stability of the device.

[0032] Specifically, a sensor 27 is fixedly connected to the side of the mounting plate 1 , and an alarm 28 is arranged on the side of the sensor 27 . The alarm 28 is fixedly connected to the side of the mounting plate 1 . There are two alarms 28 symmetrically arranged on both sides of the sensor 27 .

[0033] By adopting the above technical solution, when the isolating switch is in normal use, when an unrelated person or bird approaches the protective box 2, the sensor 27 will make the alarm 28 sound an alarm to drive the person away upon sensing the person's approach, thereby improving the safety of the device.

[0034] Specifically, a slide groove 29 is provided on the upper surface of the mounting plate 1 , a slider 30 is slidably connected in the slide groove 29 , a protective shell 31 is fixedly connected to the upper end of the slider 30 , and a first handle 32 is fixedly connected to the side of the protective shell 31 .

[0035] Specifically, a second handle 33 is fixedly connected to the side of the box door 3 , and a status display panel 34 is fixedly connected to the side of the box door 3 .

[0036] Specifically, the connecting block 10 , the connecting rod 11 , the connecting plate 20 and the knob 15 are all made of insulating materials.

[0037] The working principle of the utility model is as follows: when in use, people can install the mounting plate 1 at a suitable position, and then pass the connecting wire 5 through the wire inlet groove 4 into the protection box 2 and connect it to the connector 6. When the isolating switch is in normal use, people can use the control fan 24 to operate, and the fan 24 drives the air to enter the protection box 2 through the dustproof net 25. The dust in the air will be blocked by the dustproof net 25, and the hot air inside the protection box 2 will be discharged through the exhaust port 35. The rain shield 26 on the side of the exhaust port 35 can ensure heat dissipation while preventing rain from entering the protection box 2. When a person or a bird approaches the protection box 2, the sensor 27 will be triggered to send a signal to the alarm 28, and the alarm 28 will sound an alarm to drive it away. When people need to power on, When repairing or maintaining the circuit, people can use the first handle 32 to pull out the protective shell 31, and then people can press the connecting plate 20 inward, the connecting plate 20 compresses the spring 19 and the telescopic rod 18 and drives the block 21 to leave the slot 17, and then people can rotate the knob 15, the knob 15 drives the connecting plate 20 and the connecting rod 11 to rotate, the annular groove 12 and the annular guide rail 13 guide the connecting rod 11, the connecting rod 11 drives the connecting block 10 and the knife 8 to rotate, so that the knife 8 leaves the contact 9, and then people can loosen the connecting plate 20, the spring 19 rebounds and pushes the connecting plate 20 to move outward, so that the block 21 enters the slot 17 at the appropriate position, fixes the knob 15 and the knife 8, and then people can perform circuit repair and maintenance work.

[0038] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A novel isolating switch, comprising a mounting plate (1) and a protection box (2), characterized in that: The protection box (2) is fixedly connected to the upper surface of the mounting plate (1); the side of the protection box (2) is connected to a box door (3) via a hinge; the side of the protection box (2) is provided with a wire entry slot (4); a connecting wire (5) is passed through the inside of the wire entry slot (4); the other end of the connecting wire (5) is fixedly connected to a connector (6); the connector (6) is fixedly connected to the inside of the protection box (2); there are three groups of connectors (6) which are evenly arranged inside the protection box (2); the side of the connector (6) is fixedly connected to a rotating structure (7); the side of the rotating structure (7) is rotatably connected to a knife switch (8); the inside of the protection box (2) is fixedly connected to a contact (9); the knife switch (8) matches the contact (9); the other end of the knife switch (8) is fixedly connected to a connecting block (10); a connecting rod (11) is passed through the side of the connecting block (10); the side of the protection box (2) is provided with an annular groove (12); the connecting rod (11) The protective box (2) is slidably connected in the annular groove (12); the protective box (2) is fixedly connected to an annular guide rail (13); one end of the connecting rod (11) is slidably connected to the inside of the annular guide rail (13); a bearing (14) is fixedly connected to the side of the protective box (2); a knob (15) is passed through the bearing (14); a fixing plate (16) is fixedly connected to the side of the knob (15); the other end of the connecting rod (11) is fixedly connected to the side of the fixing plate (16); A slot (17) is provided on the side of the knob (15), and there are a plurality of slots (17) which are evenly arranged on the side of the knob (15). A telescopic rod (18) is fixedly connected to the side of the protective box (2), and a connecting plate (20) is fixedly connected to the other end of the telescopic rod (18). A spring (19) is sleeved on the surface of the telescopic rod (18), and a block (21) is fixedly connected to the side of the connecting plate (20), and the block (21) matches the slot (17).

2. A novel isolating switch according to claim 1, characterized in that: The upper surface of the protective box (2) is fixedly connected to a sleeve (22), the interior of the sleeve (22) is fixedly connected to a fixing frame (23), the upper surface of the fixing frame (23) is fixedly connected to a fan (24), the upper surface of the sleeve (22) is fixedly connected to a dustproof net (25), an exhaust port (35) is provided on the side of the box door (3), and a rain shield (26) is fixedly connected to the side of the exhaust port (35).

3. A novel isolating switch according to claim 1, characterized in that: A sensor (27) is fixedly connected to the side of the mounting plate (1), and an alarm (28) is arranged on the side of the sensor (27). The alarm (28) is fixedly connected to the side of the mounting plate (1). There are two alarms (28) in total, which are symmetrically arranged on both sides of the sensor (27).

4. A novel isolating switch according to claim 1, characterized in that: The upper surface of the mounting plate (1) is provided with a slide groove (29), a slider (30) is slidably connected in the slide groove (29), the upper end of the slider (30) is fixedly connected to a protective shell (31), and the side of the protective shell (31) is fixedly connected to a first handle (32).

5. A novel isolating switch according to claim 1, characterized in that: A second handle (33) is fixedly connected to the side of the box door (3), and a status display panel (34) is fixedly connected to the side of the box door (3).

6. A novel isolating switch according to claim 1, characterized in that: The connecting block (10), the connecting rod (11), the connecting plate (20) and the knob (15) are all made of insulating materials.

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