A multi-function double protection electrical safety device

Abstract

The present invention relates to the technical field of electric power facilities, and discloses an electric safety device with multiple double protections, including a base, a shell with a thin-walled structure rotatably mounted on the base, a wire-passing tube fixedly connected to the bottom of the shell, a sealing cover hingedly connected to the shell, a hemispherical top block fixedly connected to the top of the shell, a wind guide plate fixedly connected to the top block, a bracket fixedly connected to the inside of the shell, a mounting plate fixedly connected to the bracket, and a rotating ring fixedly connected to the mounting plate. The electric safety device provided by the present invention can adaptively adjust the horizontal position and vertical height of the circuit breaker according to the direction and size of the wind when it is affected by wind, so as to ensure the stability of the circuit breaker when the circuit breaker is shaken by the wind, so as to prevent the shaking from affecting the accuracy of the opening and closing of the circuit breaker.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power facilities, and more specifically, to an electric power safety device with multiple double protections. Background Art

[0002] Some waterborne electrical equipment is based on buoys and is based on water. Due to the high water content in the air on the water surface, in order to prevent the electrical equipment from being damaged by short circuits, the electrical equipment is usually equipped with a circuit breaker as a protective device. The most common circuit breaker used for waterborne electrical equipment is an air switch, which will automatically trip when the circuit current is overloaded to protect the electrical equipment from being burned. Most air switches use an actuator structure to control whether the switch trips or not. The actuator structure is mostly composed of an electromagnet, an armature, and a spring. When the rated current passes through the air switch, the magnetic force of the electromagnet on the armature is in a balanced state with the spring that applies a reverse force. When the current is overloaded, the magnetic force of the electromagnet on the armature is greater than the elastic force of the spring, causing the armature to move and drive the air switch to trip.

[0003] However, in actual use, electrical equipment based on floats is very likely to shake on the water surface with the float as the center due to wind force, and the air switch will also shake synchronously. During the shaking process of the air switch, the force between the armature and the spring will change under the action of centrifugal force, affecting the accuracy of the air switch when it trips. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides an electrical safety device with multiple dual protections, which has the advantage of reducing the impact of wind on circuit breakers.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an electrical safety device with multiple double protections, comprising a base, a shell with a thin-walled structure rotatably installed on the base, a wire passing tube fixedly connected to the bottom of the shell, a sealing cover hinged on the shell, a hemispherical top block fixedly connected to the top of the shell, a wind guide plate fixedly connected to the top block, a bracket fixedly connected to the inside of the shell, a mounting plate fixedly connected to the bracket, a rotating ring fixedly connected to the mounting plate, a load-bearing plate rotatably installed on the rotating ring, a counterweight block fixedly connected to the bottom of the load-bearing plate to keep the load-bearing plate in a vertical state, the load-bearing plate slidably cooperated with a back plate for installing a circuit breaker, and a driving device is provided between the load-bearing plate and the back plate to reduce the shaking of the circuit breaker caused by wind.

[0006] As a preferred technical solution of the present invention, the driving device includes a fixed shaft, one end of which is fixedly connected to the mounting plate, and the other end of the fixed shaft is fixedly connected to an incomplete gear. Two transmission mechanisms are symmetrically arranged on both sides of the load-bearing plate for connecting the back plate.

[0007] As a preferred technical solution of the present invention, the transmission mechanism includes a first rack and a large gear. The first rack can be vertically slidably matched on the load-bearing plate, the first rack matches the incomplete gear, a first slide rail is horizontally fixed to the first rack, a first sliding seat is slidably matched on the first slide rail, a sliding sleeve is fixed on the first sliding seat, a guide rod is vertically slidably matched in the sliding sleeve, a second rack is horizontally fixed to the bottom of the guide rod, the large gear can be rotatably matched on the load-bearing plate, the first rack matches the large gear, a pinion is coaxially fixed to the large gear, and the second rack matches the pinion.

[0008] As a preferred technical solution of the present invention, a second slide rail is horizontally fixedly connected to the first slide seat, a second slide seat is slidably matched to the second slide rail, and the back plate is fixedly connected to the second slide seat.

[0009] As a preferred technical solution of the present invention, a control structure is provided on the second sliding seat to control whether the second sliding seat and the second rail are locked or not, the control structure includes an insertion rod, the insertion rod can be vertically slidably matched on the second sliding seat, a limiting groove is provided on the second slide rail, the insertion rod can be inserted in the limiting groove, a connecting block is fixedly connected to the bottom of the insertion rod, a groove is provided on the connecting block, a connecting piece is fixedly connected to the fixed shaft, a paddle is fixedly connected to the connecting piece, and the paddle cooperates with the groove.

[0010] As a preferred technical solution of the present invention, a compression spring is horizontally fixedly connected to the second sliding seat, a brake block is fixedly connected to the compression spring, and the brake block abuts against the insertion rod.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The electrical safety device provided by the present invention can adaptively adjust the horizontal position and vertical height of the circuit breaker according to the wind direction and wind size when subjected to wind force, thereby ensuring the stability of the circuit breaker when the circuit breaker shakes due to the wind force, so as to prevent the shaking from affecting the accuracy of the circuit breaker opening and closing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The structure of the present invention is shown in FIG. Figure 1 ;

[0014] Figure 2 The structure of the present invention is shown in FIG. Figure 2 ;

[0015] Figure 3 It is a schematic diagram of the structure inside the housing of the present invention;

[0016] Figure 4 It is a structural schematic diagram of the back plate and the load-bearing plate of the present invention;

[0017] Figure 5 It is a schematic diagram of the structure behind the load-bearing plate of the present invention;

[0018] Figure 6 It is a schematic diagram of the structure of the rear of the back plate of the present invention;

[0019] Figure 7 For the present invention Figure 6 Schematic diagram at A in the middle;

[0020] Figure 8 It is a structural schematic diagram of the mounting plate of the present invention;

[0021] Fig. 9 It is a structural schematic diagram of the load-bearing plate of the present invention;

[0022] Fig.10 For the present invention Fig. 9 Enlarged view of point B in the middle;

[0023] Fig.11 For the present invention Fig. 9 Enlarged view of point C in the middle;

[0024] Fig.12 It is a schematic diagram of the structure of the cooperation between the second slide rail and the first slide seat of the present invention;

[0025] Fig.13 It is a structural schematic diagram of the first sliding seat of the present invention;

[0026] Fig.14 It is a schematic structural diagram of the first slide rail and the first rack of the present invention;

[0027] Fig.15 Working state of the present invention Figure 1 ;

[0028] Fig.16 Working state of the present invention Figure 2 .

[0029] In the figure: 1. base; 2. shell; 201. wire tube; 3. sealing cover; 4. top block; 5. air guide plate; 6. circuit breaker; 7. load-bearing plate; 8. second sliding seat; 9. connecting block; 901. groove; 10. plug rod; 11. compression spring; 12. brake block; 13. second slide rail; 14. first sliding seat; 15. sliding sleeve; 16. guide rod; 17. second rack; 18. small gear; 19. first slide rail; 20. first rack; 21. large gear; 22. incomplete gear; 23. fixing rod; 24. connecting piece; 25. paddle; 26. limit groove; 27. bracket; 28. mounting plate; 29. ​​rotating ring; 30. counterweight; 31. back plate. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] like Figures 1 to 4 As shown, the present invention provides an electrical safety device with multiple double protections, including a base 1, a shell 2 with a thin-wall structure rotatably installed on the base 1, a wire passing tube 201 is fixedly connected to the bottom of the shell 2, a sealing cover 3 is hinged on the shell 2, a hemispherical top block 4 is fixedly connected to the top of the shell 2, a wind guide plate 5 is fixedly connected to the top block 4, a bracket 27 is fixedly connected inside the shell 2, a mounting plate 28 is fixedly connected to the bracket 27, a rotating ring 29 is fixedly connected to the mounting plate 28, a load-bearing plate 7 is rotatably installed on the rotating ring 29, a counterweight block 30 is fixedly connected to the bottom of the load-bearing plate 7 to keep the load-bearing plate 7 in a vertical state, the load-bearing plate 7 is slidably matched with a back plate 31 for installing a circuit breaker 6, and a driving device is provided between the load-bearing plate 7 and the back plate 31 to reduce the shaking of the circuit breaker 6 caused by wind.

[0032] When the device is in use, it is fixed on the electrical equipment through the base 1, and the circuit is connected to the short-circuit device 6 through the wire tube 201. When the device is subjected to wind force, the wind guide plate 5 drives the shell 2 to rotate on the base 1 under the action of wind force until the plane where the wind guide plate 5 is located is parallel to the wind direction.

[0033] like Figure 5-Figure 14 As shown, the driving device includes a fixed shaft 23, one end of the fixed shaft 23 is fixedly connected to the mounting plate 28, and the other end of the fixed shaft 23 is fixedly connected to an incomplete gear 22. Two transmission mechanisms are symmetrically arranged on both sides of the load-bearing plate 7 for connecting the back plate 31. The transmission mechanism includes a first rack 20 and a large gear 21. The first rack 20 can be vertically slidably matched on the load-bearing plate 7, and the first rack 20 matches the incomplete gear 22. A first slide rail 19 is horizontally fixedly connected to the first rack 20, and a first sliding seat 14 can be slidably matched on the first slide rail 19. A sliding sleeve 15 is fixedly connected to the first sliding seat 14, and a guide rod 16 can be vertically slidably matched in the sliding sleeve 15. A second rack 17 is horizontally fixedly connected to the bottom of the guide rod 16. The large gear 21 can be rotatably matched on the load-bearing plate 7, and the first rack 20 matches the large gear 21. A pinion 18 is coaxially fixedly connected to the large gear 21, and the second rack 17 matches the pinion 18.

[0034] When the shell 2 is tilted by wind, the shell 2 will drive the fixed shaft 23 to deflect synchronously through the bracket 27 and the mounting plate 28. The deflection of the fixed shaft 23 drives the incomplete gear 22 to deflect synchronously, while the load-bearing plate 7 will not deflect under the gravity of the counterweight block 30. Therefore, the incomplete gear 22 deflects relative to the load-bearing plate 7.

[0035] Since the incomplete gear 22 cooperates with the first rack 20, the first rack 20 can be driven to move vertically when the incomplete gear 22 is deflected. The vertical movement of the first rack 20 can make the back plate 31 move vertically, so as to compensate for the height of the circuit breaker 6 on the back plate 31 when the shell 1 is tilted by wind force, so as to prevent the circuit breaker 6 from having large fluctuations in the vertical direction.

[0036] like Figure 9-Figure 14 As shown, the second slide rail 13 is horizontally fixedly connected to the first slide seat 14 , the second slide rail 13 is slidably matched with the second slide seat 8 , and the back plate 7 is fixedly connected to the second slide seat 8 .

[0037] When the first rack 20 moves vertically, it will drive the large gear 21 to rotate. The rotation of the large gear 21 will drive the small gear 18 to rotate synchronously. The rotation of the small gear 18 will drive the second rack 17 to move horizontally. The horizontal movement of the second rack 17 will drive the first sliding seat 14 to slide horizontally on the first slide rail 19, thereby making the circuit breaker 6 on the back plate 31 move horizontally to compensate for the horizontal displacement of the circuit breaker 6 and reduce the influence of the horizontal displacement of the shell on the circuit breaker 6.

[0038] like Figure 9-11 As shown, a control structure is provided on the second sliding seat 8 to control whether the second sliding seat 8 and the second slide rail 13 are locked or not, the control structure includes an insertion rod 10, the insertion rod 10 can be vertically slidably matched on the second sliding seat 8, a limiting groove 26 is provided on the second slide rail 13, the insertion rod 10 can be inserted in the limiting groove 26, a connecting block 9 is fixedly connected to the bottom of the insertion rod 10, a groove 901 is provided on the connecting block 9, a connecting member 24 is fixedly connected to the fixed shaft 23, a paddle 25 is fixedly connected to the connecting member 24, the paddle 25 cooperates with the groove 901, a compression spring 11 is horizontally fixedly connected to the second sliding seat 8, a brake block 12 is fixedly connected to the compression spring 11, and the brake block 12 rests on the insertion rod 10.

[0039] When the fixed shaft 23 is deflected relative to the load-bearing plate 7, the paddle 25 will also be deflected relative to the connecting block 9. When the paddle 25 is deflected, the connecting block 9 will be driven to move vertically through the groove 901, thereby driving the insertion rod 10 to move vertically through the connecting block 9. The vertical movement of the insertion rod 10 can be inserted into the limiting groove 26 or moved out of the limiting groove 26. When the insertion rod 10 is inserted into the limiting groove 26, the second sliding seat 8 and the second slide rail 13 are equivalent to being fixedly connected, and when the insertion rod 10 is pulled out of the limiting groove 26, the second sliding seat 8 and the second slide rail 13 are equivalent to being disconnected in the horizontal direction.

[0040] During the vertical sliding of the insertion rod 10, the brake block 12 always rests against the surface of the insertion rod 10 under the elastic force of the compression spring 11. Under the action of friction, the brake block 12 can prevent the insertion rod 10 from sliding under the action of gravity.

[0041] The working principle and use process of the present invention:

[0042] like Fig.15 As shown, the wind force F blows from the left side to the right side of the housing 2. Under the action of the wind force, the wind guide plate 5 drives the housing 2 to rotate on the base 1, so that the plane where the wind guide plate 5 is located is parallel to the wind direction;

[0043] like Fig.16 As shown, the shell 2 deflects under the action of the wind force F, the deflection of the shell 2 drives the bracket 27 to deflect, the bracket 27 drives the mounting plate 28 to deflect, and the mounting plate 28 drives the fixed shaft 23 to deflect.

[0044] like Fig.16 As shown, the deflection of the fixed shaft 23 will drive the deflection of the connecting member 24, and the deflection of the connecting member 24 will drive the two paddles 25 on both sides. The deflection direction of the paddles 25 is counterclockwise. Therefore, the connecting block 9 on the side close to the wind direction F will be driven to move upward, and the connecting block 9 on the side away from the wind direction F will be driven to move downward, so that the right-side plug rod 10 will be inserted into the limit groove 26, and the left-side plug rod 10 will be pulled out of the limit groove 26.

[0045] The deflection of the fixed shaft 23 will also drive the deflection of the incomplete gear 22. The deflection direction of the incomplete gear 22 is counterclockwise. During the deflection of the incomplete gear 22, the first rack 20 on the right side will be driven to move upward. The upward movement of the first rack 20 can cause the back plate 31 to move upward, thereby compensating for the height of the circuit breaker 6 on the back plate 31 when the shell 1 is tilted by wind force, so as to prevent the circuit breaker 6 from having large fluctuations in the vertical direction.

[0046] When the first rack 20 moves up, it will drive the large gear 21 to rotate clockwise, and the large gear 21 will drive the small gear 18 to rotate clockwise. The clockwise rotation of the small gear 18 will drive the second rack 17 located on the right side of the load-bearing plate 7 to move rightward. The rightward movement of the second rack 17 will drive the first sliding seat 14 to move rightward through the guide rod 16. Since the right-side plug-in rod 10 is inserted into the limiting groove 26 at this time, the first sliding seat 14 and the second sliding seat 18 are considered to be fixedly connected at this time. Therefore, the rightward movement of the first sliding seat 14 will drive the back plate 31 to move rightward through the second sliding seat 18, thereby causing the circuit breaker 6 to move horizontally to the right, so as to compensate for the horizontal displacement of the circuit breaker 6 and reduce the influence of the horizontal displacement of the shell on the circuit breaker 6.

[0047] Compared with the prior art, the electrical safety device provided by the present invention can adaptively adjust the horizontal position and vertical height of the circuit breaker 6 according to the wind direction and wind size when affected by wind force, thereby ensuring the stability of the circuit breaker 6 when the circuit breaker 6 shakes due to the wind force, so as to prevent the shaking from affecting the accuracy of opening and closing of the circuit breaker 6.

[0048] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-function double protection electrical safety device, comprising a base (1), characterized in that: A shell (2) with a thin-walled structure is rotatably mounted on the base (1); a wire-passing tube (201) is fixedly connected to the bottom of the shell (2); a sealing cover (3) is hingedly connected to the shell (2); a hemispherical top block (4) is fixedly connected to the top of the shell (2); a wind guide plate (5) is fixedly connected to the top block (4); a bracket (27) is fixedly connected inside the shell (2); a mounting plate (28) is fixedly connected to the bracket (27); A rotating ring (29) is fixedly connected to the mounting plate (28), a bearing plate (7) is rotatably mounted on the rotating ring (29), a counterweight block (30) is fixedly connected to the bottom of the bearing plate (7) to keep the bearing plate (7) in a vertical state, the bearing plate (7) is slidably matched with a back plate (31) for mounting a circuit breaker (6), and a driving device is provided between the bearing plate (7) and the back plate (31) to reduce the shaking of the circuit breaker (6) caused by wind force.

2. The electrical safety device with multiple double protections according to claim 1, characterized in that: The driving device comprises a fixed shaft (23), one end of which is fixedly connected to a mounting plate (28), and the other end of which is fixedly connected to an incomplete gear (22). Two transmission mechanisms are symmetrically arranged on both sides of the load-bearing plate (7) for connecting to a back plate (31).

3. The electrical safety device with multiple double protections according to claim 2, characterized in that: The transmission mechanism comprises a first rack (20) and a large gear (21); the first rack (20) can be vertically slidably matched on the bearing plate (7); the first rack (20) matches the incomplete gear (22); a first slide rail (19) is horizontally fixedly connected to the first rack (20); a first sliding seat (14) is slidably matched on the first slide rail (19); a sliding sleeve (15) is fixedly connected to the first sliding seat (14); a guide rod (16) is vertically slidably matched in the sliding sleeve (15); a second rack (17) is horizontally fixedly connected to the bottom of the guide rod (16); the large gear (21) can be rotatably matched on the bearing plate (7); the first rack (20) matches the large gear (21); a pinion (18) is coaxially fixedly connected to the large gear (21); the second rack (17) matches the pinion (18).

4. The multiple double protection electrical safety device according to claim 3, characterized in that: A second slide rail (13) is horizontally fixedly connected to the first slide seat (14), a second slide seat (8) is slidably matched to the second slide rail (13), and the back plate (7) is fixedly connected to the second slide seat (8).

5. The multiple double protection electrical safety device according to claim 4, characterized in that: The second sliding seat (8) is provided with a control structure to control whether the second sliding seat (8) and the second slide rail (13) are locked or not, the control structure includes an insertion rod (10), the insertion rod (10) can be vertically slidably matched on the second sliding seat (8), the second slide rail (13) is provided with a limiting groove (26), the insertion rod (10) can be inserted into the limiting groove (26), the bottom of the insertion rod (10) is fixedly connected with a connecting block (9), the connecting block (9) is provided with a groove (901), the fixed shaft (23) is fixedly connected with a connecting piece (24), the connecting piece (24) is fixedly connected with a paddle (25), and the paddle (25) is matched with the groove (901).

6. The multiple double protection electrical safety device according to claim 5, characterized in that: A compression spring (11) is horizontally fixedly connected to the second sliding seat (8), a brake block (12) is fixedly connected to the compression spring (11), and the brake block (12) abuts against the insertion rod (10).

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