High-low voltage switchgear assembly

Abstract

The invention relates to the technical field of high-low voltage switch equipment, in particular to high-low voltage complete switch equipment which comprises a cabinet body, a cabinet door, a door lock and heat dissipation holes. The beneficial effects of the invention are that the exhaust fan, the plugging mechanism and the clamping mechanism are all in driving connection with the power mechanism, and the interior of the cabinet body is provided with the thermometer connected with the power mechanism, so that during normal operation or when a conductor material is fused, if the temperature in the cabinet body reaches a first set value of the thermometer, the temperature in the cabinet body reaches a second set value; the power mechanism drives the blocking mechanism and the exhaust fan to operate, the blocking mechanism does not block the heat dissipation holes any more, the rotation of the exhaust fan can quickly dissipate the temperature in the cabinet body, and if the temperature in the cabinet body reaches a second set value of the thermometer, the power mechanism further drives the clamping mechanism to operate on the basis of the operation of the exhaust fan and the blocking mechanism, so that the temperature in the cabinet body is quickly dissipated. And the outer line in the outer line connecting hole is driven, and the electric connection between the outer line and the equipment is cut off, so that the safety is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of high and low voltage switchgear, and in particular to a set of high and low voltage switchgear. Background Art

[0002] High and low voltage switchgear is a kind of supporting equipment including high voltage and low voltage electrical components, which is used for power control, protection and interlocking functions in power transmission and distribution systems. It is usually composed of switchgear, protection devices, control devices, measuring instruments and auxiliary equipment to provide safe and reliable power management. At present, high and low voltage switchgear needs to be placed in high and low voltage switch cabinets. High and low voltage switch cabinets are a kind of electrical equipment. The external line of the switch cabinet first enters the main control switch in the cabinet, and then enters the sub-control switch. Each branch is set according to its needs.

[0003] In actual use, most of the devices in the circuit are protected by melting the conductor. When the circuit is overloaded or short-circuited, the conductive material in the conductor is melted to cut off the power supply and prevent damage caused by excessive current. However, during the melting process, a higher temperature will be generated inside the equipment. However, since the design of the power box needs to prevent foreign objects from entering the interior or current leakage from causing damage to the equipment or outsiders, it has a certain degree of isolation, so the air circulation is not ideal. If the temperature inside is too high and the air circulation is poor during melting or normal operation, it may cause irreversible damage to the internal devices.

[0004] Therefore, a high and low voltage complete switchgear is needed to solve the above problems. Summary of the invention

[0005] In order to solve the above problem, that is, to solve the problem of poor heat dissipation capacity of the existing high and low voltage switch cabinets, the present invention provides a high and low voltage complete switch equipment.

[0006] A high and low voltage complete switchgear, comprising a cabinet, a cabinet door and a door lock, and also comprising a heat dissipation hole, wherein the heat dissipation hole is penetrated and opened on the side wall of the cabinet, an exhaust fan is rotatably installed inside the heat dissipation hole, a blocking mechanism is connected to the top of the heat dissipation hole, an external line connection hole is opened on the top wall of the cabinet, a clamping mechanism is arranged on the side of the external line connection hole, a power mechanism is arranged at the bottom of the cabinet, the exhaust fan, the blocking mechanism and the clamping mechanism are all driven and connected to the power mechanism, a thermometer is arranged inside the cabinet, and the thermometer is connected to the power mechanism through a controller; by making the exhaust fan, the blocking mechanism and the clamping mechanism The mechanisms are all connected to the power mechanism drive, and a thermometer connected to the power mechanism is arranged inside the cabinet. During normal operation or when the conductor material is blown, if the temperature inside the cabinet reaches the first set value of the thermometer, the power mechanism drives the sealing mechanism and the exhaust fan to operate, and the sealing mechanism no longer blocks the heat dissipation holes. The rotation of the exhaust fan can quickly dissipate the temperature inside the cabinet. If the temperature inside the cabinet reaches the second set value of the thermometer, based on the operation of the above exhaust fan and the sealing mechanism, the power mechanism will further drive the clamping mechanism to operate, drive the external line in the external line connection hole, cut off the electrical connection between the external line and the equipment, and further improve safety.

[0007] Preferably, the cabinet door is hingedly mounted on the front side of the cabinet body, the interior of the cabinet body is divided into an upper cavity and a lower cavity by a partition plate, the heat dissipation holes are located on both sides of the upper cavity near the bottom, and the thermometer is located in the upper cavity.

[0008] Preferably, the power mechanism includes a motor, which is fixedly mounted in the middle position of the bottom of the lower cavity, a driving shaft is coaxially fixedly mounted on the output shaft of the motor, the top end of the driving shaft passes through the partition plate and extends into the upper cavity, a turntable is coaxially fixedly mounted on the outer surface of the driving shaft, a cam is fixedly mounted on the outer surface of the driving shaft, the small head end of the cam is coaxial with the driving shaft, the turntable and the cam are both located in the lower cavity, and the cam is located above the turntable, a sinking groove is provided on the outer surface of the turntable, a centrifugal arc plate is provided inside the sinking groove, a first retracting cavity is provided on the inner side of the sinking groove, a first retracting rod is slidably mounted inside the first retracting cavity through a first tension spring, and the outer end of the first retracting rod is fixedly connected to the centrifugal arc plate; when the motor rotates, the centrifugal arc plate and the first retracting rod can overcome the tension of the first tension spring and slide outward.

[0009] Preferably, a mounting bracket is fixedly installed inside the heat dissipation hole, and a fan blade shaft is rotatably installed on the mounting bracket, and the exhaust fan is coaxially fixedly installed on the outer end of the fan blade shaft, and a driven bevel gear is coaxially fixedly installed on the inner end of the fan blade shaft, and a transmission rod is rotatably installed in the side wall of the cabinet, and the top end of the transmission rod extends into the heat dissipation hole and is coaxially fixedly installed with a driving bevel gear, and the driving bevel gear is meshingly connected with the driven bevel gear, and a fixed gear ring is coaxially fixedly installed on the bottom end of the outer surface of the transmission rod, and the multiple fixed gear rings in the two side walls of the cabinet are connected through an internal toothed belt transmission, and the outer surface of the driving shaft abuts against the outer surface of the internal toothed belt; when the motor is running, the driving shaft drives the internal toothed belt to rotate, and the internal toothed belt drives the transmission rod to rotate through the internal teeth and the fixed gear ring, and the transmission rod then drives the fan blade shaft through the driving bevel gear and the driven bevel gear to drive the exhaust fan to rotate, so as to discharge the high-temperature gas in the cabinet.

[0010] The top of the second shrinkage cavity is connected to the heat dissipation hole, and the bottom end of the second shrinkage cavity is slidably mounted with a blocking slide plate through a second tension spring, and the bottom end of the blocking slide plate is an arc-shaped portion matching the heat dissipation hole. The inner surface of the side wall of the cabinet is provided with a third shrinkage cavity, and the interior of the third shrinkage cavity is slidably mounted with a mounting slide bar through a second push-pull spring, the elastic force of the second push-pull spring is greater than the tension of the second tension spring, one end of the mounting slide bar extends into the lower cavity and is fixedly connected to the extrusion plate, and the extrusion plate is located on the side of the centrifugal arc plate, the inner end of the third shrinkage cavity is connected to the heat dissipation hole through a second rope threading hole, and a second pull rope is arranged inside the second rope threading hole, and the two ends of the second pull rope are respectively connected with the outer end of the mounting slide bar and the bottom of the blocking slide plate; when the turntable rotates, the centrifugal arc plate slides outwardly against the extrusion plate, and the extrusion plate slides into the third shrinkage cavity to loosen the second pull rope, and then the second tension spring pulls the blocking slide plate to retract into the second shrinkage cavity.

[0011] Preferably, a coupling head is embedded in the bottom of the external line connection hole near the inner end, and the coupling head is connected to the main control switch in the cabinet through a main line.

[0012] Preferably, the clamping mechanism includes a rotating gear ring, and the rotating gear rings are rotatably installed at positions near the middle of both sides of the external wire connecting hole, a part of the rotating gear ring extends into the interior of the external wire connecting hole, an inner shaft is coaxially rotatably installed on the inner side of the rotating gear ring, an oblique tooth groove is provided on the inner side of the rotating gear ring, a fourth retracted cavity is provided on the outer surface of the inner shaft, an oblique tooth block is slidably installed inside the fourth retracted cavity through a third abutting spring, the oblique tooth block abuts in the oblique tooth groove, the top end of the inner shaft is higher than the upper surface of the rotating gear ring, and the outer surface of the inner shaft is higher than the position of the rotating gear ring. A tooth groove is provided, and a tooth plate cavity is provided on the outer side of the inner shaft at a position higher than the rotating tooth ring, a part of the inner shaft extends into the tooth plate cavity, and a driving tooth plate is slidably installed on the inner end of the tooth plate cavity close to the front side through a third tension spring, and the driving tooth plate is meshingly connected with the tooth groove on the inner shaft; when the driving tooth plate is pulled, due to the action of the bevel gear block and the bevel gear groove, the rotation of the inner shaft will not drive the rotating tooth ring to rotate, and when the driving tooth plate is pulled and reset by the third tension spring, it will drive the rotating tooth ring to rotate through the inner shaft, and when the rotating tooth ring rotates, the outer line will be pushed outward, thereby separating the outer line from the coupling head and stopping power supply to the device.

[0013] Preferably, an upper slide plate and a lower slide plate are slidably mounted on the upper and lower surfaces of the partition plate, respectively, a through sliding hole is penetrated through the partition plate, the upper slide plate and the lower slide plate are connected by a connecting slide plate, the connecting slide plate slides in the through sliding hole, the lower slide plate and the cam are located on the same horizontal plane, a guide rod is fixedly mounted on the back of the cabinet body, the upper slide plate penetrates and slides on the guide rod, a first resisting spring is arranged between the back side of the upper slide plate and the cabinet body, the elastic force of the first resisting spring is greater than the tension force of the third tension spring, the first resisting spring is sleeved on the outer side of the guide rod, and the cabinet body An electromagnet is fixedly installed on the back, and the electromagnet is connected to the thermometer through a controller. An iron plate matching the electromagnet is embedded on the back of the upper slide. A first rope threading hole is opened in the rear wall of the cabinet, and a first pull rope is arranged inside the first rope threading hole. The two ends of the first pull rope are respectively connected to the upper slide and one end of the driving tooth plate away from the third tension spring; when the temperature inside the cabinet reaches the second set value of the thermometer, the electromagnet is powered off, and the first push spring pushes the upper slide to slide toward the front, pulling the driving tooth plate to slide, and as the cam rotates, the lower slide is pushed back and forth, thereby causing the driving tooth plate to slide back and forth.

[0014] The beneficial effects of the present invention are: The present invention enables the exhaust fan, the sealing mechanism and the clamping mechanism to be driven and connected to the power mechanism, and a thermometer connected to the power mechanism is arranged inside the cabinet. During normal operation or when the conductor material is blown, if the temperature inside the cabinet reaches the first set value of the thermometer, the power mechanism drives the sealing mechanism and the exhaust fan to operate, and the sealing mechanism no longer blocks the heat dissipation holes. The rotation of the exhaust fan can quickly dissipate the temperature inside the cabinet. If the temperature inside the cabinet reaches the second set value of the thermometer, based on the operation of the above exhaust fan and the sealing mechanism, the power mechanism will further drive the clamping mechanism to operate, drive the external line in the external line connection hole, cut off the electrical connection between the external line and the device, and further improve safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of the cabinet of the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of the turntable of the present invention; Figure 5 It is a schematic diagram of the cross-sectional structure of the cabinet part of the present invention; Figure 6 This is a schematic diagram of the mounting frame structure of the present invention; Figure 7 This is a schematic diagram of the structure of the inner toothed belt of the present invention; Figure 8 It is a schematic diagram of the structure of the upper slide plate and the lower slide plate of the present invention; Fig. 9 This is a schematic diagram of the structure of the driving tooth plate of the present invention; Fig.10 This is a schematic diagram of the cross-sectional structure of the driving gear ring and the inner shaft of the present invention.

[0016] In the figure: 1. Cabinet; 2. Cabinet door; 3. Door lock; 4. Heat dissipation hole; 5. Exhaust fan; 6. External line connection hole; 7. Thermometer; 8. Partition plate; 9. Upper cavity; 10. Lower cavity; 11. Motor; 12. Drive shaft; 13. Turntable; 14. Cam; 15. Sinking groove; 16. Centrifugal arc plate; 17. First retracted cavity; 18. First tension spring; 19. First retracted rod; 20. Mounting frame; 21. Fan blade shaft; 22. Driven bevel gear; 23. Transmission rod; 24. Active bevel gear; 25. Fixed gear ring; 26. Inner tooth belt; 27. Second retracted cavity; 28. Second tension spring; 29. ​​Blocking slide plate; 30. First Three retracted cavities; 31. Second push-up spring; 32. Installing slide bar; 33. Extrusion plate; 34. Second rope threading hole; 35. Second pull rope; 36. Coupling head; 37. Main line; 38. Rotating gear ring; 39. Inner shaft; 40. Oblique tooth groove; 41. Fourth retracted cavity; 42. Third push-up spring; 43. Oblique tooth block; 44. Tooth plate cavity; 45. Third tension spring; 46. Driving tooth plate; 47. Upper slide plate; 48. Lower slide plate; 49. Through slide hole; 50. Connecting slide plate; 51. Guide rod; 52. First push-up spring; 53. Electromagnet; 54. Iron plate; 55. First rope threading hole; 56. First pull rope. DETAILED DESCRIPTION

[0017] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0018] like Figure 1-3 and Figure 5As shown, the embodiment of the present invention discloses a high and low voltage complete switch device, including a cabinet 1, a cabinet door 2 and a door lock 3, and also includes a heat dissipation hole 4, the heat dissipation hole 4 is opened through the side wall of the cabinet 1, an exhaust fan 5 is rotatably installed inside the heat dissipation hole 4, and a blocking mechanism is connected to the top of the heat dissipation hole 4. An external line connection hole 6 is opened on the top wall of the cabinet 1, and a clamping mechanism is arranged on the side of the external line connection hole 6. A power mechanism is arranged at the bottom of the cabinet 1, and the exhaust fan 5, the blocking mechanism and the clamping mechanism are all connected to the power mechanism. A thermometer 7 is arranged inside the cabinet 1, and the thermometer 7 is connected to the power mechanism through a controller; by making the exhaust fan 5, the blocking mechanism and the clamping mechanism all connected to the power mechanism, the thermometer 7 is connected to the power mechanism through a controller. The cabinet 1 is connected to the power mechanism, and a thermometer 7 connected to the power mechanism is arranged inside the cabinet 1. During normal operation or when the conductor material is melted, if the temperature inside the cabinet 1 reaches the first set value of the thermometer 7, the power mechanism drives the blocking mechanism and the exhaust fan 5 to operate, and the blocking mechanism no longer blocks the heat dissipation hole 4. The rotation of the exhaust fan 5 can quickly dissipate the temperature inside the cabinet 1. If the temperature inside the cabinet 1 reaches the second set value of the thermometer 7, based on the operation of the exhaust fan 5 and the blocking mechanism, the power mechanism will further drive the clamping mechanism to operate, drive the external line in the external line connection hole 6, cut off the electrical connection between the external line and the device, and further improve safety.

[0019] like Figure 2 As shown, the cabinet door 2 is hingedly mounted on the front of the cabinet body 1, and the interior of the cabinet body 1 is divided into an upper chamber 9 and a lower chamber 10 by a partition plate 8, the heat dissipation holes 4 are located on both sides of the upper chamber 9 near the bottom, and the thermometer 7 is located in the upper chamber 9.

[0020] like Figure 3-4 As shown, the power mechanism includes a motor 11, which is fixedly installed in the middle position of the bottom of the lower chamber 10. A drive shaft 12 is coaxially fixedly installed on the output shaft of the motor 11. The top of the drive shaft 12 penetrates the partition plate 8 and extends into the upper chamber 9. A turntable 13 is coaxially fixedly installed on the outer surface of the drive shaft 12. A cam 14 is fixedly installed on the outer surface of the drive shaft 12. The small end of the cam 14 is coaxial with the drive shaft 12. The turntable 13 and the cam 14 are both located in the lower chamber 10, and the cam 14 is located above the turntable 13. A sinking groove 15 is provided on the outer surface of the turntable 13, and a centrifugal arc plate 16 is provided inside the sinking groove 15. A first retracted cavity 17 is provided on the inner side of the sinking groove 15. A first retracted rod 19 is slidably installed inside the first retracted cavity 17 through a first tension spring 18, and the outer end of the first retracted rod 19 is fixedly connected to the centrifugal arc plate 16; when the motor 11 rotates, the centrifugal arc plate 16 and the first retracted rod 19 can overcome the pulling force of the first tension spring 18 and slide outward.

[0021] like Figure 5-7As shown, a mounting frame 20 is fixedly installed inside the heat dissipation hole 4, a fan shaft 21 is rotatably installed on the mounting frame 20, the exhaust fan 5 is coaxially fixedly installed on the outer end of the fan shaft 21, and a driven bevel gear 22 is coaxially fixedly installed on the inner end of the fan shaft 21. A transmission rod 23 is rotatably installed in the side wall of the cabinet 1, and the top end of the transmission rod 23 extends into the heat dissipation hole 4 and is coaxially fixedly installed with a driving bevel gear 24, the driving bevel gear 24 is meshed and connected with the driven bevel gear 22, and the bottom end of the outer surface of the transmission rod 23 is coaxially fixedly installed. A fixed gear ring 25 is fixedly installed, and multiple fixed gear rings 25 in the two side walls of the cabinet 1 are connected through an internal toothed belt 26. The outer surface of the drive shaft 12 abuts against the outer surface of the internal toothed belt 26. When the motor 11 is running, the drive shaft 12 drives the internal toothed belt 26 to rotate, and the internal toothed belt 26 drives the transmission rod 23 to rotate through the internal teeth and the fixed gear ring 25. The transmission rod 23 then drives the fan shaft 21 through the active bevel gear 24 and the driven bevel gear 22 to drive the exhaust fan 5 to rotate, so as to discharge the high-temperature gas in the cabinet 1.

[0022] like Figure 3 and Figure 5 As shown, the blocking mechanism includes a second retracted cavity 27, the second retracted cavity 27 is connected to a position above the heat dissipation hole 4 and close to the outer end, a blocking slide 29 is slidably installed on the top of the second retracted cavity 27 through a second tension spring 28, and the bottom end of the blocking slide 29 is an arc matching the heat dissipation hole 4, and a third retracted cavity 30 is opened on the inner surface of the side wall of the cabinet 1, and a mounting slide rod 32 is slidably installed inside the third retracted cavity 30 through a second top spring 31, the elastic force of the second top spring 31 is greater than the tension of the second tension spring 28, and one end of the mounting slide rod 32 extends into the lower cavity 10 It is fixedly connected to the extrusion plate 33, which is located on the side of the centrifugal arc plate 16. The inner end of the third retracted cavity 30 is connected to the heat dissipation hole 4 through the second rope threading hole 34. A second pull rope 35 is arranged inside the second rope threading hole 34. The two ends of the second pull rope 35 are respectively connected to the outer end of the mounting slide rod 32 and the bottom of the blocking slide plate 29; when the turntable 13 rotates, the centrifugal arc plate 16 slides outwardly against the extrusion plate 33, and the extrusion plate 33 slides into the third retracted cavity 30 to loosen the second pull rope 35, and then the second tension spring 28 pulls the blocking slide plate 29 to retract into the second retracted cavity 27.

[0023] like Figure 3 As shown, a coupling head 36 is embedded at a position near the inner end of the bottom of the external line connection hole 6 , and the coupling head 36 is connected to the main control switch in the cabinet 1 through a main line 37 .

[0024] like Figure 9-10As shown, the clamping mechanism includes a rotating gear ring 38, and rotating gear rings 38 are rotatably installed at positions near the middle of both sides of the external line connection hole 6, a part of the rotating gear ring 38 extends into the interior of the external line connection hole 6, an inner shaft 39 is coaxially rotatably installed on the inner side of the rotating gear ring 38, an oblique tooth groove 40 is provided on the inner side of the rotating gear ring 38, a fourth retracted cavity 41 is provided on the outer surface of the inner shaft 39, an oblique tooth block 43 is slidably installed inside the fourth retracted cavity 41 through a third abutting spring 42, the oblique tooth block 43 abuts in the oblique tooth groove 40, the top end of the inner shaft 39 is higher than the upper surface of the rotating gear ring 38, a tooth groove is provided on the outer surface of the inner shaft 39 at a position higher than the rotating gear ring 38, and the inner shaft 39 A tooth plate cavity 44 is provided on the outer side at a position higher than the rotating tooth ring 38, and a part of the inner shaft 39 extends into the tooth plate cavity 44. A driving tooth plate 46 is slidably installed on the inner end of the tooth plate cavity 44 near the front side through a third tension spring 45, and the driving tooth plate 46 is meshed and connected with the tooth groove on the inner shaft 39; when the driving tooth plate 46 is pulled, due to the action of the bevel gear block 43 and the bevel tooth groove 40, the rotation of the inner shaft 39 will not drive the rotating tooth ring 38 to rotate. When the driving tooth plate 46 is pulled and reset by the third tension spring 45, it will drive the rotating tooth ring 38 to rotate through the inner shaft 39. When the rotating tooth ring 38 rotates, it will push the outer line outward, thereby separating the outer line from the coupling head 36 and stopping power supply to the device.

[0025] like Figure 3 and Figure 8-9 As shown, an upper slide plate 47 and a lower slide plate 48 are slidably installed on the upper and lower surfaces of the partition plate 8, respectively. A through sliding hole 49 is opened on the partition plate 8. The upper slide plate 47 and the lower slide plate 48 are connected by a connecting slide plate 50. The connecting slide plate 50 slides in the through sliding hole 49. The lower slide plate 48 and the cam 14 are located on the same horizontal plane. A guide rod 51 is fixedly installed on the back of the cabinet 1. The upper slide plate 47 slides on the guide rod 51. A first push spring 52 is arranged between the back of the upper slide plate 47 and the cabinet 1. The elastic force of the first push spring 52 is greater than the tension of the third tension spring 45. The first push spring 52 is sleeved on the outer side of the guide rod 51. An electric The magnet 53 and the electromagnet 53 are connected to the thermometer 7 through the controller, and an iron plate 54 matching the electromagnet 53 is embedded on the back of the upper slide plate 47. A first rope threading hole 55 is provided in the rear wall of the cabinet 1, and a first pull rope 56 is provided inside the first rope threading hole 55. The two ends of the first pull rope 56 are respectively connected to the upper slide plate 47 and the end of the driving tooth plate 46 away from the third tension spring 45; when the temperature inside the cabinet 1 reaches the second set value of the thermometer 7, the electromagnet 53 is powered off, and the first push spring 52 pushes the upper slide plate 47 to slide toward the front, pulling the driving tooth plate 46 to slide, and as the cam 14 rotates, the lower slide plate 48 is pushed back and forth, so that the driving tooth plate 46 slides back and forth.

[0026] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A high and low voltage switchgear assembly, comprising a cabinet body (1), a cabinet door (2) and a door lock (3), characterized in that: The cabinet (1) further comprises a heat dissipation hole (4), wherein the heat dissipation hole (4) is formed through the side wall of the cabinet (1), an exhaust fan (5) is rotatably mounted inside the heat dissipation hole (4), a sealing mechanism is arranged at the top of the heat dissipation hole (4), an external line connection hole (6) is formed on the top wall of the cabinet (1), a clamping mechanism is arranged on the side of the external line connection hole (6), a power mechanism is arranged at the bottom of the cabinet (1), the exhaust fan (5), the sealing mechanism and the clamping mechanism are all connected to the power mechanism, and a thermometer (7) is arranged inside the cabinet (1), and the thermometer (7) is connected to the power mechanism via a controller.

2. A high and low voltage switchgear according to claim 1, characterized in that: The cabinet door (2) is hingedly mounted on the front side of the cabinet body (1); the interior of the cabinet body (1) is divided into an upper chamber (9) and a lower chamber (10) by a partition plate (8); the heat dissipation holes (4) are located on both sides of the upper chamber (9) near the bottom; and the thermometer (7) is located in the upper chamber (9).

3. A high and low voltage switchgear according to claim 2, characterized in that: The power mechanism comprises a motor (11), the motor (11) being fixedly mounted at a middle position of the bottom of the lower chamber (10), a drive shaft (12) being coaxially fixedly mounted on the output shaft of the motor (11), the top end of the drive shaft (12) passing through the partition plate (8) and extending into the upper chamber (9), a turntable (13) being coaxially fixedly mounted on the outer surface of the drive shaft (12), a cam (14) being fixedly mounted on the outer surface of the drive shaft (12), the small end of the cam (14) being coaxial with the drive shaft (12), and the turntable (13) being coaxially fixedly mounted on the outer surface of the drive shaft (12). The rotary disk (13) and the cam (14) are both located in the lower cavity (10), and the cam (14) is located above the rotary disk (13). The outer surface of the rotary disk (13) is provided with a sinking groove (15), and a centrifugal arc plate (16) is arranged inside the sinking groove (15). A first retracting cavity (17) is provided inside the sinking groove (15), and a first retracting rod (19) is slidably installed inside the first retracting cavity (17) via a first tension spring (18), and the outer end of the first retracting rod (19) is fixedly connected to the centrifugal arc plate (16).

4. A high and low voltage switchgear according to claim 3, characterized in that: A mounting frame (20) is fixedly mounted inside the heat dissipation hole (4), a fan shaft (21) is rotatably mounted on the mounting frame (20), the exhaust fan (5) is coaxially fixedly mounted on the outer end of the fan shaft (21), a driven bevel gear (22) is coaxially fixedly mounted on the inner end of the fan shaft (21), a transmission rod (23) is rotatably mounted inside the side wall of the cabinet (1), the top end of the transmission rod (23) extends into the heat dissipation hole (4) and is coaxially fixedly mounted with a driving bevel gear (24), the driving bevel gear (24) is meshingly connected with the driven bevel gear (22), a fixed gear ring (25) is coaxially fixedly mounted on the bottom end of the outer surface of the transmission rod (23), a plurality of fixed gear rings (25) in the two side walls of the cabinet (1) are connected by transmission via an internal toothed belt (26), and the outer surface of the drive shaft (12) abuts against the outer surface of the internal toothed belt (26).

5. A high and low voltage switchgear according to claim 4, characterized in that: The blocking mechanism comprises a second retracted cavity (27), the second retracted cavity (27) is connected to a position above the heat dissipation hole (4) and close to the outer end, a blocking slide plate (29) is slidably mounted on the top of the second retracted cavity (27) via a second tension spring (28), the bottom end of the blocking slide plate (29) is an arc-shaped plate that matches the heat dissipation hole (4), a third retracted cavity (30) is formed on the inner surface of the side wall of the cabinet (1), a mounting slide rod (32) is slidably mounted inside the third retracted cavity (30) via a second push-up spring (31), the second push-up spring (3 1) has an elastic force greater than the tension of the second tension spring (28), one end of the mounting slide rod (32) extends into the lower cavity (10) and is fixedly connected to the extrusion plate (33), the extrusion plate (33) is located on the side of the centrifugal arc plate (16), the inner end of the third retracted cavity (30) is connected to the heat dissipation hole (4) through a second rope threading hole (34), a second pull rope (35) is arranged inside the second rope threading hole (34), and the two ends of the second pull rope (35) are respectively connected to the outer end of the mounting slide rod (32) and the bottom of the blocking slide plate (29).

6. A high and low voltage switchgear set according to claim 5, characterized in that: A coupling head (36) is embedded in the bottom of the external line connection hole (6) near the inner end, and the coupling head (36) is connected to the main control switch in the cabinet (1) through a main line (37).

7. A high and low voltage switchgear according to claim 6, characterized in that: The clamping mechanism comprises a rotating gear ring (38), the rotating gear ring (38) being rotatably mounted at positions near the middle of both sides of the external wire connection hole (6), a portion of the rotating gear ring (38) extending into the interior of the external wire connection hole (6), an inner shaft (39) being coaxially rotatably mounted on the inner side of the rotating gear ring (38), an oblique tooth groove (40) being provided on the inner side of the rotating gear ring (38), a fourth retracted cavity (41) being provided on the outer surface of the inner shaft (39), an oblique tooth block (43) being slidably mounted in the interior of the fourth retracted cavity (41) via a third abutting spring (42), the oblique tooth block (43) abutting against the outer surface of the inner shaft (39) and the inner side of the rotating gear ring (38) being provided with an oblique tooth groove (40). The top of the inner shaft (39) is higher than the upper surface of the rotating gear ring (38), and a tooth groove is provided on the outer surface of the inner shaft (39) at a position higher than the rotating gear ring (38). A tooth plate cavity (44) is provided on the outer side of the inner shaft (39) at a position higher than the rotating gear ring (38). A portion of the inner shaft (39) extends into the tooth plate cavity (44). A driving tooth plate (46) is slidably installed at one end of the tooth plate cavity (44) close to the front side through a third tension spring (45), and the driving tooth plate (46) is meshedly connected with the tooth groove on the inner shaft (39).

8. A high and low voltage switchgear according to claim 7, characterized in that: An upper slide plate (47) and a lower slide plate (48) are slidably mounted on the upper and lower surfaces of the partition plate (8), respectively. A through sliding hole (49) is formed through the partition plate (8). The upper slide plate (47) and the lower slide plate (48) are connected via a connecting slide plate (50). The connecting slide plate (50) slides in the through sliding hole (49). The lower slide plate (48) and the cam (14) are located on the same horizontal plane. A guide rod (51) is fixedly mounted on the back of the cabinet (1). The upper slide plate (47) slides through the guide rod (51). A first push-up spring (52) is provided between the back of the upper slide plate (47) and the cabinet (1). The first push-up spring The elastic force of the third tension spring (52) is greater than the tension of the third tension spring (45). The first push spring (52) is sleeved on the outer side of the guide rod (51). An electromagnet (53) is fixedly installed on the back of the cabinet (1). The electromagnet (53) is connected to the thermometer (7) through a controller. An iron plate (54) matching the electromagnet (53) is embedded on the back of the upper slide plate (47). A first rope threading hole (55) is opened in the rear wall of the cabinet (1). A first pull rope (56) is arranged inside the first rope threading hole (55). The two ends of the first pull rope (56) are respectively connected to the upper slide plate (47) and one end of the driving tooth plate (46) away from the third tension spring (45).

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