Switching operation device for direct current system of transformer substation

Abstract

The invention relates to the technical field of switching operation, and provides a transformer substation direct current system switching operation device which comprises an operation box, a square groove formed in the top of the operation box, a safety door arranged on the front face of the operation box, a bearing plate arranged at the bottom of the operation box, a round hole formed in the bottom of the bearing plate and universal shafts arranged at the four corners of the bearing plate. Four electric push rods are fixedly mounted at the bottom of the inner wall of the operation box, each electric push rod is composed of a fixed end and a telescopic end, a push plate is fixedly mounted at the top of the telescopic end of each electric push rod, a rubber pad is fixedly mounted at the center of the top of each push plate, and a fixed lantern ring is fixedly mounted at the top of each rubber pad. According to the technical scheme, the problem that in the prior art, after a worker accidentally collides with operation equipment during movement, the silicone rubber disc is prone to being separated from the ground, so that the on-going switching process is interfered, and the accident occurrence probability is increased is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of switching operation, and in particular to a switching operation device for a DC system of a transformer substation. Background Art

[0002] Electrical equipment is divided into three states: operation, standby, and maintenance. The process of changing equipment from one state to another is called switching, and the operation is called switching operation. Switching electrical equipment is highly dangerous. With the development of science and technology, the improvement of switching equipment is becoming more and more advanced.

[0003] The patent with patent announcement number CN116844883A discloses a switching operation device, an operating trolley unit and a lifting and docking unit installed inside the operating trolley unit. The bottom of the operating trolley unit is also provided with a stabilizing unit. The upper part of the trolley shell is divided into two rectangular spaces, one is a tool placement space, and the other is an operating rod adjustment space. This patent triggers the lifting and docking unit through the transmission unit, so that the lifting plate carries the operating rod installed inside the operating rod fixing ring, and moves vertically upward stably, so that the operating rod and the electrical equipment are safely docked. During the operation of the transmission unit, the stabilizing unit will also be triggered to move the silicone rubber disc toward the ground. Due to the gravity of the operating trolley itself, the silicone rubber disc can be tightly pressed against the ground, thereby increasing the friction between the operating trolley and the ground, further improving the stability of the switching operation, and ensuring the safe docking of the operating rod.

[0004] However, the device still has some shortcomings: the device can ensure stability during the switching operation, but the silicone rubber disc only relies on the gravity of the operating equipment when it contacts the ground, which easily causes part of the silicone rubber disc to be difficult to completely fit the ground, thereby reducing the stability of the operating equipment. Therefore, when the staff accidentally collides with the operating equipment while moving, the silicone rubber disc is easy to fall off the ground, thereby interfering with the ongoing switching process and increasing the probability of accidents. Summary of the invention

[0005] The present invention proposes a switching operation device for a DC system of a substation, which solves the problem in the related art that when a worker accidentally collides with an operating device during movement, a silicone rubber disc is easily separated from the ground, thereby interfering with the ongoing switching process and increasing the probability of an accident.

[0006] The technical solution of the present invention is as follows: a switching operation device for a DC system in a substation comprises an operation box, a square groove is provided on the top of the operation box, a safety door is provided on the front of the operation box, a load-bearing plate is provided on the bottom of the operation box, a round hole is provided on the bottom of the load-bearing plate, a universal shaft is provided at the four corners of the load-bearing plate, a moving component is provided inside the universal shaft, four electric push rods are fixedly installed on the bottom of the inner wall of the operation box, and the electric push rods are composed of a fixed end and a telescopic end, a push plate is fixedly installed on the top of the telescopic end of the electric push rod, a rubber pad is fixedly installed at the center of the top of the push plate, and the rubber pad is fixedly installed at the bottom of the inner wall of the operation box. A fixed collar is fixedly installed on the top of the rubber pad, a horizontal plate is fixedly installed on the outer wall of the telescopic end of the electric push rod, a sliding ring is fixedly installed at the top center of the horizontal plate, a rotating rod is rotatably installed inside the load-bearing plate, a suction cup is fixedly installed at the bottom of the rotating rod, a plurality of arc blocks are fixedly installed at the top edge of the suction cup, and the arc blocks are evenly distributed at the top edge of the suction cup, a plurality of trapezoidal plates are fixedly and evenly installed at the bottom of the load-bearing plate, and the inclined surface of the trapezoidal plate is located on the motion track of the arc block. When it is necessary to convert the DC system of the substation into different states such as operation, standby or maintenance, the staff Push the operating box through the external handle to enter the internal adjustment position of the substation. The operating box drives the safety door and the load-bearing plate to move synchronously. The load-bearing plate drives the universal shaft to move synchronously. The universal shaft drives the moving component to generate friction with the ground and start to rotate. The moving component converts the movement process of the above structure into rolling friction; the adjustment rod is placed inside the fixed collar for fixing, and the electric push rod is started. The telescopic end of the electric push rod drives the push plate to move upward, the push plate drives the rubber pad to move synchronously, the rubber pad drives the fixed collar to move synchronously, and the fixed collar drives the operating rod to push the adjusting component of the equipment to adjust and rotate; the electric push rod extends The contracted end drives the cross plate to rise, and the cross plate drives the sliding ring to slide upward along the non-self-locking spiral groove on the outer wall of the rotating rod, and the built-in block of the sliding ring is in continuous contact with the inner wall of the spiral groove of the rotating rod, causing the rotating rod to generate a rotational force when the sliding ring slides and start to rotate. The rotating rod drives the suction cup to rotate and the suction cup contacts the ground. During the rotation of the suction cup, it contacts the ground and adheres to the ground through its own suction to provide stability for the operating box. At the same time, when the suction cup rotates, it drives the arc block to rotate. When the arc block rotates, it contacts the inclined surface of the trapezoidal plate to generate a resistance force. At this time, the load-bearing plate limits the trapezoidal plate, so the arc block generates a downward force to press the top edge of the suction cup.

[0007] According to the above technical solution, the four electric push rods are grouped into two, the two groups of electric push rods are symmetrically distributed around the axis of the operating box, and a circular hole is opened at the center of the horizontal plate.

[0008] According to the above technical solution, the top of the rotating rod is movable and passes through the interior of the horizontal plate, a spiral groove is provided on the outer wall of the rotating rod, and the spiral groove on the outer wall of the rotating rod is located inside the sliding ring, the bottom of the suction cup is flush with the bottom of the outer wall of the moving component, and a circulation device is provided under the horizontal plate to ensure air circulation inside the operating box to prevent the generation of water vapor inside the operating box in a stuffy environment, which increases the risk of working operations.

[0009] According to the above technical scheme, the circulation device includes two air dryers, a rubber plate, a plurality of semicircular blocks and a convex ball rod. The tops of the two air dryers are fixedly mounted on the bottom of the horizontal plate, the tops of the rubber plates are hinged at the bottom edge of the air dryers, the fronts of the plurality of semicircular blocks are fixedly mounted on the back of the rubber plate, and the convex ball rod is fixedly mounted on the outer wall of the fixed end of the electric push rod at one end away from the center of the horizontal plate. When the air dryer is started, the horizontal plate drives the air dryer to move synchronously when it rises, thereby expanding the blowing range of the air dryer. The air dryer drives the rubber plate to rise. In the process of the rubber plate driving the semicircular blocks to rise, the arc surface of the semicircular blocks will contact the arc surface of the convex ball rod, and the electric push rod limits the convex ball rod. At this time, the hinge shaft between the semicircular block and the air dryer starts to rotate and the rubber plate swings forward in an arc shape with its own hinge shaft as the center. When the convex ball rod no longer contacts the semicircular block, the rubber plate is automatically reset by the torsion spring, and this reciprocating process causes the rubber plate to swing back and forth and reset.

[0010] According to the above technical solution, the two air dryers are symmetrically distributed with the central circular hole of the horizontal plate as the axis, a torsion spring is arranged between the top of the rubber plate and the bottom of the air dryer, a plurality of semicircular blocks are equidistantly distributed on the back of the rubber plate, and the convex ball rod is located on the arc motion trajectory of the semicircular block at one end close to the center of the horizontal plate.

[0011] According to the above technical scheme, the circulation device also includes four transmission plates, a circular frame, several round rods and a water-absorbent cotton wheel. The four transmission plates are grouped in two, and the two groups of transmission plates are symmetrically distributed around the axis of the operating box. The tops of the four transmission plates are hinged to the outer wall of the dryer through torsion springs, the outer wall of the circular frame is hinged to the inner wall of the transmission plate, the bottom of the circular frame contacts the bottom of the inner wall of the operating box, the left and right ends of several round rods are rotatably installed on the inner wall of the circular frame, and the water-absorbent cotton wheel penetrates through the inside and is fixedly installed on the outer wall surface of the round rod. When the air dryer rises, it drives the transmission plate to move synchronously, and when the transmission plate rises, it pulls the circular frame. At this time, the hinge shaft between the transmission plate and the air dryer starts to rotate, and the transmission plate pulls the circular frame with the hinge shaft as the center to slide backward along the bottom of the inner wall of the operating box, the circular frame drives the round rod to move synchronously, and the round rod drives the water-absorbent cotton wheel to move synchronously, the bottom of the water-absorbent cotton wheel contacts the bottom of the inner wall of the operating box to generate friction and starts to rotate, and the water-absorbent cotton wheel drives the round rod to rotate when it rotates.

[0012] According to the above technical solution, the plurality of round rods are evenly distributed inside the circular frame, the outer wall of the absorbent cotton wheel contacts the bottom of the inner wall of the operating box, and a warning device for detecting whether there is current inside the operating box is provided on the back of the circular frame.

[0013] According to the above technical scheme, the warning device includes a reciprocating screw, a power ring, a sliding plate and a wave plate. The left and right ends of the reciprocating screw are movably penetrated and fixedly installed on the end of the round rod close to the center of the operating box. The inner wall of the power ring penetrates and is sleeved on the outer wall surface of the reciprocating screw. The bottom of the power ring is slidably connected with the bottom of the inner wall of the operating box. The front of the sliding plate is fixedly installed on the back of the outer arm of the power ring. The bottom of the wave plate is fixedly installed on the top of the sliding plate. When the round rod rotates, it drives the reciprocating screw to rotate. When the reciprocating screw rotates, it limits the power ring through the non-self-locking reciprocating spiral groove on its outer wall. At the same time, the internal block of the power ring continuously contacts the inner wall of the spiral groove, prompting the power ring to slide left and right along the outer wall of the reciprocating screw. The power ring drives the sliding plate to move synchronously, and the sliding plate drives the wave plate to move synchronously.

[0014] According to the above technical scheme, the warning device also includes a detection component, a plurality of warning lights and an L-shaped backlight panel. The front of the detection component is fixedly installed on the back of the sliding plate, and the front of the detection component contacts the back of the circular frame. The bottoms of the plurality of warning lights are fixed and equidistantly installed on the top of the detection component. The inner wall of the L-shaped backlight panel close to the center of the operating box is fixedly installed on the outer wall of the circular frame, and the detection component is located on the inner side of the L-shaped backlight panel. At the same time, the sliding plate drives the detection component to move toward the inside of the L-shaped backlight panel, and the detection component expands its own detection range, and the detection component drives the warning light to move synchronously. When the sliding plate slides, it squeezes the spring sheet to deform, and when the spring sheet deforms, it pushes the shielding plate to move toward the detection component. One side of the shielding plate moves toward the detection component and the other side moves away from the detection component. The shielding plate moving toward the detection component cooperates with the L-shaped backlight panel, so that the brightness difference on both sides of the detection component is more obvious during each movement.

[0015] According to the above technical solution, the warning device also includes a spring piece and a shielding plate. The spring piece is fixedly installed between the side of the circular frame close to the center of the operating box and the outer wall of the sliding plate, and the front side of the shielding plate is fixedly installed on the curved surface of the back of the spring piece.

[0016] The working principle and beneficial effects of the present invention are:

[0017] 1. In the present invention, the electric push rod, push plate, rubber pad, fixed collar, cross plate, sliding ring, rotating rod, suction cup, arc block and trapezoidal plate are coordinated to promote the workers to change the state of the power equipment without manual contact to improve the safety of the workers, and the height of the equipment is adjusted to adapt to the switching operation of power equipment at different heights, thereby improving the practicality of the operation of the equipment to a certain extent; and the bottom of the suction cup is completely in contact with the ground to improve the overall stability of the operating box, ensuring that the suction cup will not fall off the ground if the worker accidentally collides with the operating equipment during movement, thereby avoiding interference with the ongoing switching process and causing accidents.

[0018] 2. In the present invention, by setting a circulation device, the horizontal plate, air dryer, rubber plate, semicircular block, convex ball rod, transmission plate, circular frame, round rod and absorbent cotton wheel are matched to change the blowing direction of the wind of the air dryer when the rubber plate swings, avoid blowing in a fixed direction of the air dryer, change the blowing height of the air dryer and further expand the coverage of the wind force, take away the heat generated by the equipment during operation, prevent the internal equipment lines of the operation box from softening and exposing to discharge, avoid electrical conduction with ions inside the substation, and increase the work risk of the staff; at the same time, expand the activity range of the absorbent cotton wheel inside the operation box, and use the absorbent cotton wheel to rotate and evenly absorb the water vapor generated by the mixing of the stuffy environment and heat at the bottom of the inner wall of the operation box, ensure a dry environment inside the operation box, and prevent the water vapor inside the operation box from conducting electricity to the ions, causing the staff to overreact when they touch the operation box due to the stimulation of the current, thereby causing operational errors.

[0019] 3. In the present invention, through the setting of the warning device, through the cooperation of the round rod, reciprocating screw, power ring, sliding plate, wave plate, detection component, warning light, L-shaped backlight plate, spring sheet and shielding plate, the wave plate can move left and right during the process of backward movement and resetting. At this time, the wave plate disturbs the wind blown out by the air dryer through the arc surface, and relies on the tortuous arc surface to extend the blowing time of the wind under the operating box, thereby reducing the generation and accumulation of water vapor under the operating box; and when the detection component detects whether there is residual power inside the operating box, the number of warning lights that light up is used to prompt the staff of the residual power intensity, and the dark light environment formed by the L-shaped backlight plate and the shielding plate makes the brightness of the warning light more obvious to attract the attention of the staff, so as to facilitate the staff wearing insulating clothing to promptly detect whether the internal equipment of the substation needs maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the peripheral structure of the electric push rod of the present invention;

[0024] Figure 4 It is a bottom perspective schematic diagram of the peripheral structure of the electric push rod of the present invention;

[0025] Figure 5 It is a schematic diagram of the circulation device of the present invention;

[0026] Figure 6 It is a schematic diagram of the circulation device of the present invention from the left side perspective;

[0027] Figure 7 It is a schematic diagram of the warning device of the present invention;

[0028] Figure 8 It is an enlarged schematic diagram of the overall structure of the warning device of the present invention.

[0029] In the figure: 1. operating box; 2. safety door; 3. load-bearing plate; 31. universal shaft; 32. moving assembly; 4. circulation device; 41. air dryer; 42. rubber plate; 43. semicircular block; 44. convex ball rod; 45. transmission plate; 46. circular frame; 47. round rod; 48. absorbent cotton wheel; 5. warning device; 51. reciprocating screw rod; 52. power ring; 53. sliding plate; 54. wave plate; 55. detection assembly; 56. warning light; 57. L-shaped backlight plate; 58. shrapnel; 59. shielding plate; 6. electric push rod; 7. push plate; 8. rubber pad; 9. fixed ring; 10. horizontal plate; 11. sliding ring; 12. rotating rod; 13. suction cup; 14. arc block; 15. trapezoidal plate. DETAILED DESCRIPTION

[0030] The following will be combined with 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] Example 1

[0032] like Figures 1 to 8As shown, the present embodiment proposes a switching operation device for a DC system of a substation, comprising an operation box 1, a square groove is provided on the top of the operation box 1, a safety door 2 is provided on the front of the operation box 1, a load-bearing plate 3 is provided on the bottom of the operation box 1, a round hole is provided on the bottom of the load-bearing plate 3, a universal shaft 31 is provided at the four corners of the load-bearing plate 3, a moving component 32 is provided inside the universal shaft 31, four electric push rods 6 are fixedly installed on the bottom of the inner wall of the operation box 1, and the electric push rod 6 consists of a fixed end and a telescopic end, a push plate 7 is fixedly installed on the top of the telescopic end of the electric push rod 6, a rubber pad 8 is fixedly installed at the center of the top of the push plate 7, a fixed collar 9 is fixedly installed on the top of the rubber pad 8, a cross plate 10 is fixedly installed on the outer wall of the telescopic end of the electric push rod 6, a sliding ring 11 is fixedly installed at the center of the top of the cross plate 10, a rotating rod 12 is rotatably installed inside the load-bearing plate 3, and the bottom of the rotating rod 12 is fixed A suction cup 13 is fixedly installed, and a plurality of arc blocks 14 are fixedly installed at the top edge of the suction cup 13. The arc blocks 14 are equidistantly distributed at the top edge of the suction cup 13. A plurality of trapezoidal plates 15 are fixed and equidistantly installed at the bottom of the load-bearing plate 3. The inclined surface of the trapezoidal plate 15 is located on the movement trajectory of the arc blocks 14. Through the above cooperation, the workers do not need to manually touch the power equipment during the state adjustment process to improve the safety of the workers, and the height adjustment of the equipment can adapt to the switching operation of power equipment at different heights, which improves the practicality of the operation of the equipment to a certain extent; through the above cooperation, the bottom of the suction cup 13 can be completely in contact with the ground, thereby improving the overall stability of the operation box 1, ensuring that the suction cup 13 will not fall off the ground after the worker accidentally collides with the operating equipment during movement, thereby avoiding interference with the ongoing switching process and causing accidents.

[0033] The four electric push rods 6 are grouped in two, and the two groups of electric push rods 6 are symmetrically distributed around the axis of the operation box 1 . A circular hole is opened at the center of the cross plate 10 .

[0034] The top of the rotating rod 12 is movable and passes through the interior of the horizontal plate 10. A spiral groove is provided on the outer wall of the rotating rod 12, and the spiral groove on the outer wall of the rotating rod 12 is located inside the sliding ring 11. The bottom of the suction cup 13 is flush with the bottom of the outer wall of the moving component 32. A circulation device 4 is provided below the horizontal plate 10 to ensure air circulation inside the operating box 1 to prevent the generation of water vapor inside the operating box 1 in a stuffy environment, which increases the risk of working operations.

[0035] In this embodiment, when it is necessary to convert the DC system of the substation into different states such as operation, standby or maintenance, the staff pushes the operating box 1 into the internal adjustment position of the substation through the external handle, and the operating box 1 drives the safety door 2 and the load-bearing plate 3 to move synchronously, and the load-bearing plate 3 drives the universal shaft 31 to move synchronously, and the universal shaft 31 drives the moving component 32 to generate friction with the ground and start to rotate, and the moving component 32 converts the movement process of the above structure into rolling friction; the adjusting rod is placed inside the fixed collar 9 for fixing, and the electric push rod 6 is started. The telescopic end of the electric push rod 6 pushes the push plate 7 to move upward, and the push plate 7 drives the rubber pad 8 to move synchronously, and the rubber pad 8 drives the fixed collar 9 to move synchronously, and the fixed collar 9 drives the operating rod to push the adjusting component of the equipment to adjust and rotate. Through the above cooperation, the staff does not need to manually touch the process of changing the state of the power equipment, which improves the safety of the staff, and the height adjustment of the equipment can adapt to the switching operation of power equipment at different heights, which improves the practicality of the equipment operation to a certain extent. The telescopic end of the electric push rod 6 drives the horizontal plate 10 to rise, and the horizontal plate 10 drives the sliding ring 11 to slide upward along the non-self-locking spiral groove on the outer wall of the rotating rod 12, and the built-in block of the sliding ring 11 is in constant contact with the inner wall of the spiral groove of the rotating rod 12, so that when the sliding ring 11 slides, the rotating rod 12 generates a rotating force and starts to rotate, and the rotating rod 12 drives the suction cup 13 to rotate and the suction cup 13 contacts the ground. During the rotation process, the suction cup 13 contacts the ground and adheres to the ground through its own suction force to provide stability for the operation box 1. At the same time, when the suction cup 13 rotates, it drives the arc The block 14 rotates, and the arc block 14 rotates and contacts the inclined surface of the trapezoidal plate 15 to generate a resistance force. At this time, the load-bearing plate 3 limits the trapezoidal plate 15, so the arc block 14 generates a downward force to press the top edge of the suction cup 13, and so on. Through the above cooperation, the bottom of the suction cup 13 can be completely in contact with the ground, thereby improving the overall stability of the operating box 1, ensuring that the suction cup 13 will not fall off the ground if the staff accidentally collides with the operating equipment during movement, avoiding interference with the ongoing switching process and causing accidents.

[0036] Example 2

[0037] like Figures 1 to 8 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes a circulation device 4 and a warning device 5;

[0038] The circulation device 4 includes two air dryers 41, a rubber plate 42, a plurality of semicircular blocks 43 and a convex ball rod 44. The tops of the two air dryers 41 are fixedly mounted on the bottom of the horizontal plate 10, the top of the rubber plate 42 is hinged at the bottom edge of the air dryer 41, the fronts of the plurality of semicircular blocks 43 are fixedly mounted on the back of the rubber plate 42, and the convex ball rod 44 is fixedly mounted on the outer wall of the fixed end of the electric push rod 6 at one end away from the center of the horizontal plate 10. Through the above cooperation, the wind blowing direction of the air dryer 41 is changed when the rubber plate 42 swings, and the air dryer 41 is prevented from blowing in a fixed direction. While changing the blowing height of the air dryer 41, the wind coverage is further expanded, and the heat generated during the operation of the equipment is taken away to prevent the internal equipment lines of the operating box 1 from softening and exposing to discharge, avoid electrical conduction with the ions inside the substation, and increase the work risks of the staff.

[0039] The two air dryers 41 are symmetrically distributed with the central circular hole of the horizontal plate 10 as the axis. A torsion spring is arranged between the top of the rubber plate 42 and the bottom of the air dryer 41. A plurality of semicircular blocks 43 are evenly distributed on the back of the rubber plate 42. The convex ball rod 44 is located on the arc motion trajectory of the semicircular block 43 at one end close to the center of the horizontal plate 10.

[0040] The circulation device 4 also includes four transmission plates 45, a circular frame 46, a plurality of round rods 47 and a water-absorbing cotton wheel 48. The four transmission plates 45 are grouped in two, and the two groups of transmission plates 45 are symmetrically distributed around the axis of the operation box 1. The tops of the four transmission plates 45 are hinged to the outer wall of the air dryer 41 through torsion springs, the outer wall of the circular frame 46 is hinged to the inner wall of the transmission plate 45, the bottom of the circular frame 46 contacts the bottom of the inner wall of the operation box 1, and the left and right ends of the plurality of round rods 47 are rotatably mounted on the inner wall of the circular frame 46. The water-absorbing cotton wheel 48 penetrates inside and is fixedly mounted on the outer wall surface of the round rod 47. The above coordination expands the range of movement of the water-absorbing cotton wheel 48 inside the operation box 1, and the water vapor generated by the mixing of the stuffy environment and heat at the bottom of the inner wall of the operation box 1 is rotated and evenly absorbed by the water-absorbing cotton wheel 48, thereby ensuring a dry environment inside the operation box 1 and preventing the water vapor inside the operation box 1 from conducting electricity to ions, causing the staff to overreact to the current stimulation when touching the operation box 1, thereby causing operational errors.

[0041] A plurality of round rods 47 are evenly distributed inside the circular frame 46 , the outer wall of the absorbent cotton wheel 48 contacts the bottom of the inner wall of the operation box 1 , and a warning device 5 for detecting whether there is current inside the operation box 1 is provided on the back of the circular frame 46 .

[0042] The warning device 5 includes a reciprocating screw 51, a power ring 52, a sliding plate 53 and a wave plate 54. The left and right ends of the reciprocating screw 51 are movably penetrated and fixedly installed on the end of the round rod 47 close to the center of the operation box 1. The inner wall of the power ring 52 penetrates and is sleeved on the outer wall surface of the reciprocating screw 51. The bottom of the power ring 52 is slidably connected with the bottom of the inner wall of the operation box 1. The front of the sliding plate 53 is fixedly installed on the back of the outer arm of the power ring 52. The bottom of the wave plate 54 is fixedly installed on the top of the sliding plate 53. Through the above cooperation, the wave plate 54 can move left and right during the backward movement and resetting process. At this time, the wave plate 54 disturbs the wind blown out by the air dryer 41 through the arc surface, and relies on the tortuous arc surface to extend the circulation and blowing time of the wind force under the operation box 1, thereby reducing the generation and accumulation of water vapor under the inside of the operation box 1.

[0043] The warning device 5 also includes a detection component 55, a plurality of warning lights 56 and an L-shaped backlight panel 57. The front of the detection component 55 is fixedly mounted on the back of the sliding plate 53, and the front of the detection component 55 contacts the back of the circular frame 46. The bottoms of the plurality of warning lights 56 are fixed and equidistantly mounted on the top of the detection component 55. The L-shaped backlight panel 57 is fixedly mounted on the outer wall of the circular frame 46 on the inner wall near the center of the operating box 1, and the detection component 55 is located on the inner side of the L-shaped backlight panel 57.

[0044] The warning device 5 also includes a spring piece 58 and a baffle plate 59. The spring piece 58 is fixedly installed between the side of the circular frame 46 close to the center of the operating box 1 and the outer wall of the sliding plate 53. The front of the baffle plate 59 is fixedly installed on the arc surface of the back of the spring piece 58. Through the above cooperation, when the detection component 55 detects whether there is residual power inside the operating box 1, the number of warning lights 56 that are on is used to remind the staff of the residual power intensity. The dark light environment formed by the L-shaped backlight panel 57 and the baffle plate 59 makes the brightness of the warning light 56 ​​more obvious to attract the attention of the staff, so that the staff wearing insulating clothes can promptly detect whether the internal equipment of the substation needs maintenance.

[0045] In this embodiment, the air dryer 41 is started, and the horizontal plate 10 rises, driving the air dryer 41 to move synchronously, thereby expanding the blowing range of the air dryer 41. The air dryer 41 drives the rubber plate 42 to rise. In the process of the rubber plate 42 driving the semicircular block 43 to rise, the arc surface of the semicircular block 43 will contact the arc surface of the convex ball rod 44, and the electric push rod 6 will limit the convex ball rod 44. At this time, the hinge axis between the semicircular block 43 and the air dryer 41 starts to rotate and the rubber plate 42 swings forward in an arc shape with its own hinge axis as the center. When the convex ball rod 44 After the ball rod 44 no longer contacts the semicircular block 43, the rubber plate 42 is automatically reset by the torsion spring, and the reciprocating movement of the rubber plate 42 causes the rubber plate 42 to swing back and forth and reset. The above cooperation causes the rubber plate 42 to change the blowing direction of the wind dryer 41 when it swings, so as to avoid the wind dryer 41 blowing in a fixed direction, change the blowing height of the wind dryer 41, and further expand the coverage of the wind force, take away the heat generated by the equipment during operation, prevent the internal equipment line of the operating box 1 from softening and exposing to discharge, and avoid ionization with the inside of the substation. When the air dryer 41 rises, it drives the transmission plate 45 to move synchronously, and when the transmission plate 45 rises, it pulls the circular frame 46. At this time, the hinge shaft between the transmission plate 45 and the air dryer 41 starts to rotate, and the transmission plate 45 pulls the circular frame 46 to slide backward along the bottom of the inner wall of the operation box 1 with the hinge shaft as the center, and the circular frame 46 drives the round rod 47 to move synchronously, and the round rod 47 drives the absorbent cotton wheel 48 to move synchronously. The bottom of the absorbent cotton wheel 48 contacts the bottom of the inner wall of the operation box 1 to generate friction and starts to rotate. When the absorbent cotton wheel 48 rotates, it drives the round rod 47 to rotate. Through the above cooperation, the activity range of the absorbent cotton wheel 48 inside the operation box 1 is expanded, and the water vapor generated by the mixture of the stuffy environment and heat at the bottom of the inner wall of the operation box 1 is rotated and evenly absorbed by the absorbent cotton wheel 48, so as to ensure a dry environment inside the operation box 1 and prevent the water vapor inside the operation box 1 from conducting electricity to the ions, causing the staff to overreact when they touch the operation box 1 due to the stimulation of the current, thereby causing operational errors.

[0046] When the round rod 47 rotates, it drives the reciprocating screw rod 51 to rotate. When the reciprocating screw rod 51 rotates, it limits the power ring 52 through the non-self-locking reciprocating spiral groove on its outer wall. At the same time, the internal block of the power ring 52 keeps in contact with the inner wall of the spiral groove, causing the power ring 52 to slide left and right along the outer wall of the reciprocating screw rod 51. The power ring 52 drives the sliding plate 53 to move synchronously, and the sliding plate 53 drives the wave plate 54 to move synchronously. Through the above cooperation, the wave plate 54 can move left and right during the backward movement and reset process. At this time, the wave plate 54 disturbs the wind blown out by the air dryer 41 through the arc surface, and relies on the tortuous arc surface to extend the circulation and blowing time of the wind force under the operating box 1, thereby reducing the generation and accumulation of water vapor under the operating box 1; at the same time, the sliding plate 53 drives the detection component 55 to move toward the inner direction of the L-shaped backlight plate 57, the detection component 55 expands its own detection range, and the detection component 55 drives the warning light 56 moves synchronously, and when the sliding plate 53 slides, the spring piece 58 is squeezed and deformed. When the spring piece 58 is deformed, it pushes the shielding plate 59 to move towards the detection component 55. One side of the shielding plate 59 moves towards the detection component 55 and the other side moves away from the detection component 55. The shielding plate 59 moving towards the detection component 55 cooperates with the L-shaped backlight plate 57, so that the brightness difference between the two sides of the detection component 55 during each movement is more obvious. Through the above cooperation, when the detection component 55 detects whether there is residual power inside the operation box 1, the number of warning lights 56 that are on is used to remind the staff of the residual power strength, and the dark light environment formed by the L-shaped backlight plate 57 and the shielding plate 59 makes the light of the warning light 56 ​​more obvious to attract the attention of the staff, so that the staff wearing insulating clothes can promptly detect whether the internal equipment of the substation needs maintenance.

[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A switching operation device for a DC system of a substation, comprising an operation box (1), a square groove is provided on the top of the operation box (1), a safety door (2) is provided on the front of the operation box (1), a load-bearing plate (3) is provided on the bottom of the operation box (1), a round hole is provided on the bottom of the load-bearing plate (3), universal shafts (31) are provided at the four corners of the load-bearing plate (3), and a moving component (32) is provided inside the universal shaft (31), characterized in that: Four electric push rods (6) are fixedly mounted on the bottom of the inner wall of the operation box (1), and the electric push rods (6) are composed of a fixed end and a telescopic end. A push plate (7) is fixedly mounted on the top of the telescopic end of the electric push rod (6), a rubber pad (8) is fixedly mounted at the center of the top of the push plate (7), a fixed collar (9) is fixedly mounted on the top of the rubber pad (8), a transverse plate (10) is fixedly mounted on the outer wall of the telescopic end of the electric push rod (6), and a A sliding ring (11), a rotating rod (12) is rotatably installed inside the bearing plate (3), a suction cup (13) is fixedly installed at the bottom of the rotating rod (12), a plurality of arc blocks (14) are fixedly installed at the top edge of the suction cup (13), and the plurality of arc blocks (14) are evenly distributed at the top edge of the suction cup (13), and a plurality of trapezoidal plates (15) are fixedly and evenly installed at the bottom of the bearing plate (3), and the inclined surface of the trapezoidal plate (15) is located on the movement trajectory of the arc blocks (14).

2. A substation DC system switching operation device according to claim 1, characterized in that: The four electric push rods (6) are grouped in two, and the two groups of electric push rods (6) are symmetrically distributed around the axis of the operating box (1), and a circular hole is opened at the center of the transverse plate (10).

3. A switching operation device for a DC system of a substation according to claim 2, characterized in that: The top of the rotating rod (12) is movable and passes through the interior of the horizontal plate (10); a spiral groove is provided on the outer wall of the rotating rod (12), and the spiral groove on the outer wall of the rotating rod (12) is located inside the sliding ring (11); the bottom of the suction cup (13) is flush with the bottom of the outer wall of the moving component (32); and a circulation device (4) is provided below the horizontal plate (10) for ensuring air circulation inside the operating box (1) to prevent the generation of water vapor inside the operating box (1) in a stuffy environment, which increases the risk of work operation.

4. A switching operation device for a DC system of a substation according to claim 3, characterized in that: The circulation device (4) comprises two air dryers (41), a rubber plate (42), a plurality of semicircular blocks (43) and a convex ball rod (44), the tops of the two air dryers (41) are fixedly mounted on the bottom of the transverse plate (10), the top of the rubber plate (42) is hinged at the bottom edge of the air dryer (41), the fronts of the plurality of semicircular blocks (43) are fixedly mounted on the back of the rubber plate (42), and the convex ball rod (44) is fixedly mounted on the outer wall of the fixed end of the electric push rod (6) at one end away from the center of the transverse plate (10).

5. A switching operation device for a DC system of a substation according to claim 4, characterized in that: The two air dryers (41) are symmetrically distributed with the central circular hole of the horizontal plate (10) as the axis, a torsion spring is arranged between the top of the rubber plate (42) and the bottom of the air dryer (41), a plurality of semicircular blocks (43) are equidistantly distributed on the back of the rubber plate (42), and the convex ball rod (44) is located on the arc motion trajectory of the semicircular block (43) at one end close to the center of the horizontal plate (10).

6. A switching operation device for a DC system of a substation according to claim 5, characterized in that: The circulation device (4) also includes four transmission plates (45), a circular frame (46), a plurality of round rods (47) and a water-absorbing cotton wheel (48). The four transmission plates (45) are grouped in two, and the two groups of transmission plates (45) are symmetrically distributed around the axis of the operating box (1). The tops of the four transmission plates (45) are hinged to the outer wall of the air dryer (41) through torsion springs. The outer wall of the circular frame (46) is hinged to the inner wall of the transmission plate (45). The bottom of the circular frame (46) contacts the bottom of the inner wall of the operating box (1). The left and right ends of the plurality of round rods (47) are rotatably mounted on the inner wall of the circular frame (46). The water-absorbing cotton wheel (48) penetrates the inside and is fixedly mounted on the outer wall surface of the round rod (47).

7. A switching operation device for a DC system of a substation according to claim 6, characterized in that: The plurality of round rods (47) are evenly spaced inside the circular frame (46); the outer wall of the absorbent cotton wheel (48) contacts the bottom of the inner wall of the operating box (1); and a warning device (5) for detecting whether the operating box (1) carries an electric current is disposed on the back of the circular frame (46).

8. A switching operation device for a DC system of a substation according to claim 7, characterized in that: The warning device (5) comprises a reciprocating screw rod (51), a power ring (52), a sliding plate (53) and a wave plate (54); the left and right ends of the reciprocating screw rod (51) are movably penetrated and fixedly mounted on one end of the round rod (47) close to the center of the operating box (1); the inner wall of the power ring (52) penetrates and is sleeved on the outer wall surface of the reciprocating screw rod (51); the bottom of the power ring (52) is slidably connected to the bottom of the inner wall of the operating box (1); the front of the sliding plate (53) is fixedly mounted on the back of the outer arm of the power ring (52); and the bottom of the wave plate (54) is fixedly mounted on the top of the sliding plate (53).

9. A switching operation device for a DC system of a substation according to claim 8, characterized in that: The warning device (5) further comprises a detection component (55), a plurality of warning lights (56) and an L-shaped backlight plate (57); the front of the detection component (55) is fixedly mounted on the back of the sliding plate (53); the front of the detection component (55) contacts the back of the circular frame (46); the bottoms of the plurality of warning lights (56) are fixedly mounted and equidistantly mounted on the top of the detection component (55); the L-shaped backlight plate (57) is fixedly mounted on the outer wall of the circular frame (46) on the inner wall of one side close to the center of the operation box (1); and the detection component (55) is located on the inner side of the L-shaped backlight plate (57).

10. A switching operation device for a DC system of a substation according to claim 9, characterized in that: The warning device (5) further comprises a spring piece (58) and a shielding plate (59); the spring piece (58) is fixedly mounted between a side of the circular frame (46) close to the center of the operating box (1) and an outer wall of the sliding plate (53); and the front side of the shielding plate (59) is fixedly mounted on the back arc surface of the spring piece (58).

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