Box-type transformer and transformer control method based on voltage stabilization regulation and control

Abstract

The invention relates to the technical field of box-type transformers, and discloses a box-type transformer and a transformer control method based on voltage stabilization regulation, and the box-type transformer comprises a main cement base, a box body, a transformer chamber arranged in the box body, a box door installed on the side wall of the transformer chamber, and a ventilation opening formed in the bottom wall of the transformer chamber. A plurality of fire extinguishing openings are formed in the bottom wall of the transformer chamber, and a plugging base, a fire extinguisher and a control assembly are arranged at the bottom of the box body. By arranging the fire extinguishing port, the plugging seat, the fire extinguisher, the assembling assembly and the control assembly, when a fire occurs in the transformer chamber, the fire extinguishing port is closed after the plugging seat is driven to move upwards, the output end of the fire extinguisher is driven to be inserted into the transformer chamber, and meanwhile the fire extinguisher is started to spray a fire extinguishing agent into the transformer chamber; and meanwhile, compared with manual fire extinguishing, the fire extinguishing device is more convenient and safer, and the risk that fire extinguishers are electrically shocked and burnt is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of box-type transformers, and in particular to a box-type transformer and a transformer control method based on voltage stabilization and regulation. Background Art

[0002] The box-type transformer integrates the traditional transformer in the box, mainly including the transformer, high-voltage control equipment and low-voltage control equipment, wherein the transformer is arranged in the transformer room. When installing the box-type transformer, the main cement base is built in advance, and then the box is hoisted on the main cement base, wherein the bottom of the transformer room is provided with an opening connected to the inside of the main cement base for air circulation to dissipate heat. This type of box-type transformer has certain shortcomings: the safety of the box-type transformer is extremely important, and the leakage discharge and fire caused by the aging of the internal components of the transformer are the main causes of safety accidents, especially when a fire occurs, because the outside of the box is mostly closed, if manual firefighting is inconvenient, the risk of electric shock and burns is high, and the safety is poor. Therefore, a safer and more reliable box-type transformer is urgently needed. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a box-type transformer and a transformer control method based on voltage stabilization and regulation, which have the advantages of safety and reliability, and solve the problem that the current box-type transformer requires manual close-range fire extinguishing and is not safe enough.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a box-type transformer, comprising a main cement base, a box body, a transformer chamber arranged in the box body, a box door installed on the side wall of the transformer chamber, and a vent arranged on the bottom wall of the transformer chamber, the bottom wall of the transformer chamber is provided with a plurality of fire extinguishing ports, and the bottom of the box body is provided with a blocking seat, a fire extinguisher and a control assembly;

[0005] The top of the blocking seat is provided with a plane with an area larger than the vent, and an assembly component is installed on the outer wall of the blocking seat;

[0006] The control assembly is in transmission connection with the blocking seat, and the control assembly is used to drive the blocking seat to move vertically, and the control assembly includes an operating wheel extending to the far end of the box body;

[0007] The assembly assembly includes a tank shell for fixing the fire extinguisher and a driving member installed on the tank shell, wherein the driving member is used to drive the fire extinguisher to operate;

[0008] When a fire occurs, the operator controls the operating wheel at the far end of the box to operate the control component. When the control component operates, the blocking seat and the fire extinguisher on the blocking seat are driven to move upward. When the blocking seat moves upward, the vent is blocked. When the fire extinguisher moves upward, the output end is inserted into the transformer room through the fire extinguishing port. At the same time, the driving part operates, forcing the fire extinguisher to spray the fire extinguishing agent after it operates, so as to extinguish the fire inside the transformer room.

[0009] Preferably, one end of the trough shell is fixed to the outer wall of the sealing seat, a positioning groove is arranged in the trough shell, a strip hole is opened on the bottom wall of the positioning groove, the assembly component also includes a vertically arranged positioning tube, the height of the positioning tube is higher than the top surface of the sealing seat, a connecting block is fixed between the side wall of the positioning tube and the sealing seat, a through groove is opened on the side wall of the positioning tube, and a detachable strap is fixed on the top of the trough shell.

[0010] Preferably, the driving member includes a transverse guide rail fixed at the bottom of the trough shell and a vertical guide rail fixed at the end of the trough shell, the transverse guide rail is slidably connected with a transverse rack, one end of the transverse rack is fixed with a push rod, the vertical guide rail is slidably connected with a vertical rack, the end surface of the trough shell is also provided with a base shaft, a transmission gear is fixed on the base shaft, the transmission gear is meshed with the transverse rack and the vertical rack at the same time, and both ends of the base shaft are mounted on the end surface of the trough shell through a first bearing seat.

[0011] Preferably, the top end of the vertical rack extends to the outside of the vertical guide rail, the top end of the vertical rack is fixedly connected to a return spring, and the bottom end of the return spring is fixedly connected to the top end of the vertical rack.

[0012] Preferably, the control component has two transverse slide rails symmetrically distributed on both sides of the blocking seat, and the two transverse slide rails are fixed on the bottom wall of the box body. A first bidirectional screw is provided in the two transverse slide rails, and both ends of the first bidirectional screw are rotatably connected to the transverse slide rails. One end of the first bidirectional screw extends to the outside of the transverse slide rail and is fixed with a driven bevel gear. The first bidirectional screw is threaded with two symmetrically distributed transverse sliding blocks, and the two transverse sliding blocks are slidably connected to the slide rails. An inclined rod is provided on the two transverse sliding blocks, and the bottom end of the inclined rod is rotatably connected to the outer wall of the blocking seat, and the top end of the inclined rod is rotatably connected to the transverse sliding block.

[0013] Preferably, the control component also includes a transmission shaft and a driving screw, the transmission shaft is distributed perpendicularly to the transverse slide rail, the driving screw is distributed parallel to the transverse slide rail, the driving screw is rotatably connected to the box and one end is transmission-connected to the operating wheel, a transverse nut seat is threadedly connected to the driving screw, a double rack is fixed on the transverse nut seat, the double rack is slidably connected to the bottom wall of the box, the transmission shaft is installed on the bottom wall of the box through a second bearing seat, two active bevel gears are fixed on the transmission shaft, the active bevel gear is meshed with the driven bevel gear, a first gear is fixed to the end of the transmission shaft, and the first gear corresponds to the position of the double rack.

[0014] Preferably, a driving shaft is fixed on the operating wheel, and one end of the driving shaft is connected to the end of the driving screw through a universal joint.

[0015] Preferably, a vertical slide rail is fixedly connected in the transformer room, the vertical slide rail is close to the inner wall of the box door, a second bidirectional screw is rotatably connected in the vertical slide rail, two vertical sliding blocks are threadedly connected to the second bidirectional screw, both of the two vertical sliding blocks are slidably connected to the vertical slide rail, lock holes are provided on the two vertical sliding blocks, the bottom end of the second bidirectional screw extends to the bottom of the box body and is fixedly connected to a second gear, and the second gear corresponds to the position of the double rack.

[0016] Preferably, a door shaft is fixed on the side of the box door away from the vertical slide rail, and the door shaft is rotatably connected to the inner wall of the transformer chamber. The bottom end of the door shaft extends to the bottom of the box body and is fixed with a fourth gear. The edge of the fourth gear is meshed with a third gear, and the third gear is movably connected to the bottom wall of the box body through a rotating shaft, and the third gear corresponds to the position of the double rack.

[0017] The invention also discloses a transformer control method based on voltage stabilization regulation, and the transformer control method based on voltage stabilization regulation uses the above-mentioned box-type transformer.

[0018] Compared with the prior art, the present invention provides a box-type transformer and a transformer control method based on voltage stabilization regulation, which has the following beneficial effects:

[0019] 1. This box-type transformer and the transformer control method based on voltage stabilization and regulation, by setting a fire extinguishing port, a blocking seat, a fire extinguisher, an assembly component and a control component, when a fire occurs inside the transformer room, the blocking seat is driven to move up to close the fire extinguishing port, and the output end of the fire extinguisher is driven to be inserted into the transformer room, and the fire extinguisher is started to spray the fire extinguishing agent into the transformer room, which is conducive to fast and efficient fire extinguishing work and avoids further deterioration of the fire. At the same time, it is more convenient and safer than manual fire extinguishing, and reduces the risk of electric shock and burns to the fire extinguishers.

[0020] 2. This type of box-type transformer and the transformer control method based on voltage stabilization and regulation install a fire extinguisher on the outside of the blocking seat in advance. When a fire occurs, the blocking seat and the fire extinguisher are moved up, and the fire extinguisher is operated at the same time. The vents are blocked while the fire extinguishing agent is sprayed into the transformer room. When there is a lack of air in the transformer room, the fire is easier to control and the fire extinguishing effect is better.

[0021] 3. This type of box-type transformer and the transformer control method based on voltage stabilization regulation, by setting an operating wheel, can drive the operating wheel to control the double racks to move in reverse, which can successively drive the second gear, the third gear and the fourth gear to rotate, and then first unlock the lock on the box door, and then drive the box door to open, which is conducive to assisting in opening the box door before and after leakage or fire accidents, and will not damage the box body and the box door, will not affect the subsequent normal use of the box door, and there is no need to manually touch the box door, further reducing the safety risk. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A partial cross-sectional view of a box-type transformer of the present invention;

[0023] Figure 2 The internal structure diagram of the main cement base of the present invention;

[0024] Figure 3 It is a three-dimensional schematic diagram of the bottom structure of a box-type transformer of the present invention;

[0025] Figure 4 For the present invention Figure 3 A magnified view of part A;

[0026] Figure 5 An exploded view of the installation structure of the fire extinguisher of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the tank shell of the present invention;

[0028] Figure 7 is a cross-sectional view of a box body of the present invention;

[0029] Figure 8 It is a schematic structural diagram of the drive shaft of the present invention;

[0030] Fig. 9 It is a structural schematic diagram of the vertical slide rail of the present invention;

[0031] Fig.10 For the present invention Fig. 9 Enlarged view of part B.

[0032] In the figure: 1. Main cement base; 2. Box; 21. Transformer room; 22. Box door; 23. Ventilation port; 24. Fire extinguishing port; 3. Blocking seat; 4. Fire extinguisher; 5. Control assembly; 501. Operating wheel; 502. Horizontal slide rail; 503. First bidirectional screw; 504. Driven bevel gear; 505. Horizontal slide block; 506. Bevel rod; 507. Transmission shaft; 508. Drive screw; 509. Horizontal nut seat; 510. Double rack; 511. Second bearing seat; 512. Active bevel gear; 513. First gear; 514. Drive shaft; 6. Assembly assembly; 61. Slot Shell; 611, positioning groove; 612, strip hole; 613, positioning tube; 614, connecting block; 615, through groove; 616, detachable strap; 62, driving member; 621, horizontal guide rail; 622, vertical guide rail; 623, horizontal rack; 624, push rod; 625, vertical rack; 626, base shaft; 627, transmission gear; 628, first bearing seat; 629, reset spring; 7, vertical slide rail; 8, second bidirectional screw; 9, vertical slide block; 10, lock hole; 11, second gear; 12, door shaft; 13, fourth gear; 14, third gear; 15, rotating shaft. DETAILED DESCRIPTION

[0033] 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.

[0034] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a box-type transformer and a transformer control method based on voltage stabilization and regulation.

[0035] Example 1: Please refer to Figure 1-Figure 5 A box-type transformer comprises a main cement base 1, a box body 2, a transformer chamber 21 arranged in the box body 2, a box door 22 installed on the side wall of the transformer chamber 21, and a vent 23 arranged on the bottom wall of the transformer chamber 21, wherein the bottom wall of the transformer chamber 21 is provided with a plurality of fire extinguishing ports 24, and a blocking seat 3, a fire extinguisher 4 and a control component 5 are arranged at the bottom of the box body 2;

[0036] The top of the blocking seat 3 is provided with a plane with an area larger than the vent 23, and an assembly component 6 is installed on the outer wall of the blocking seat 3;

[0037] The control assembly 5 is in transmission connection with the blocking seat 3, and is used to drive the blocking seat 3 to move vertically. The control assembly 5 includes an operating wheel 501 extending to the far side of the box body 2;

[0038] The assembly component 6 includes a tank shell 61 for fixing the fire extinguisher 4 and a driving member 62 installed on the tank shell 61, and the driving member 62 is used to drive the fire extinguisher 4 to operate;

[0039] When a fire occurs, the operator controls the operating wheel 501 at the far end of the box body 2 to operate the control component 5. When the control component 5 operates, the blocking seat 3 and the fire extinguisher 4 on the blocking seat 3 are driven to move upward. When the blocking seat 3 moves upward, the vent 23 is blocked. When the fire extinguisher 4 moves upward, the output end is inserted into the transformer chamber 21 through the fire extinguishing port 24. At the same time, the driving member 62 operates, forcing the fire extinguisher 4 to spray the fire extinguishing agent after operation, so as to extinguish the fire inside the transformer chamber 21.

[0040] Among them, in actual application, an alarm is pre-installed in the transformer room 21 to monitor the fire. The solution in this embodiment is mainly for the transformer room 21 of the box body 2, and can also be used for the high-voltage control room and the low-voltage control room in the box body 2. In the initial state, a gap of at least 20 cm is set between the blocking seat 3 and the vent 23 to prevent the blocking seat 3 from interfering with the ventilation. The operating wheel 501 is set at least 25 m away from the box body, and a prefabricated auxiliary cement base is installed in the auxiliary cement base for protection;

[0041] When in use, after a fire occurs, the operator does not need to open the box door 22 to manually extinguish the fire on site, but directly turns the operating wheel 501 at the far end of the box body 2. The operating wheel 501 causes the control component 5 to operate. When the control component 5 operates, the blocking seat 3 and the fire extinguisher 4 are driven to move upward, and the fire extinguishing port 24 at the bottom of the transformer chamber 21 is completely blocked, so that the inside of the transformer chamber 21 is more sealed and the air content is lower. At the same time, after the fire extinguisher 4 moves upward, the output end is inserted into the inside of the transformer chamber 21 through the fire extinguishing port 24, and the driving member 62 on the tank shell 61 operates to drive the fire extinguisher 4 to spray the fire extinguishing agent to extinguish the fire inside the transformer chamber 21.

[0042] By providing the fire extinguishing port 24, the blocking seat 3, the fire extinguisher 4, the assembly component 6 and the control component 5, when a fire occurs inside the transformer chamber 21, the blocking seat 3 is driven to move upward to close the fire extinguishing port 24, and the output end of the fire extinguisher 4 is driven to be inserted into the transformer chamber 21, and the fire extinguisher 4 is started to spray the fire extinguishing agent into the transformer chamber 21, which is conducive to fast and efficient fire extinguishing work and avoids further deterioration of the fire. At the same time, it is more convenient and safer than manual fire extinguishing, and reduces the risk of electric shock and burns to the fire extinguishers.

[0043] Example 2: See Figure 5 and Figure 6, which is different from the above embodiment, one end of the slot shell 61 is fixed to the outer wall of the blocking seat 3, a positioning groove 611 is provided in the slot shell 61, and a strip hole 612 is provided in the bottom wall of the positioning groove 611, and the assembly component 6 also includes a vertically arranged positioning tube 613, the height of the positioning tube 613 is higher than the top surface of the blocking seat 3, a connecting block 614 is fixed between the side wall of the positioning tube 613 and the blocking seat 3, a through groove 615 is provided on the side wall of the positioning tube 613, a detachable strap 616 is fixed to the top of the slot shell 61, and the driving member 62 includes a fixing on the slot shell 61 A transverse guide rail 621 at the bottom and a vertical guide rail 622 fixed at the end of the slot shell 61, a transverse rack 623 is slidably connected to the transverse guide rail 621, a push rod 624 is fixed at one end of the transverse rack 623, a vertical rack 625 is slidably connected to the vertical guide rail 622, and a base shaft 626 is also provided on the end face of the slot shell 61, a transmission gear 627 is fixed on the base shaft 626, and the transmission gear 627 is meshed with the transverse rack 623 and the vertical rack 625 at the same time, and both ends of the base shaft 626 are installed on the end face of the slot shell 61 through a first bearing seat 628.

[0044] The number of assembly components 6, fire extinguishers 4 and fire extinguishing ports 24 is the same, the inner wall of the positioning groove 611 is set to be arc-shaped, the inner diameter of the positioning groove 611 matches the diameter of the fire extinguisher 4, the height of the top of the vertical rack 625 is higher than the height of the top surface of the blocking seat 3, and the pin on the handle is pre-pulled out before the fire extinguisher 4 is installed;

[0045] When in use, the fire extinguisher 4 is pre-installed, the detachable strap 616 is first untied, and the fire extinguisher 4 is placed in the positioning groove 611, so that the handle of the fire extinguisher 4 passes through the strip hole 612 and extends to the bottom of the groove shell 61, and then the detachable strap 616 is re-fixed to fix the fire extinguisher 4, and then the output pipe of the fire extinguisher 4 is placed from the through groove 615 into the positioning tube 613. At this time, the output pipe of the fire extinguisher 4 vertically points to the fire extinguishing port 24 above; when the control component 5 is running, it drives the blocking seat 3 to move up, and then drives the assembly component 6 on one side of the blocking seat 3 and the fire extinguisher 4 to move up, wherein the top end of the output pipe of the fire extinguisher 4 is first inserted into the fire extinguishing port 24, Then the vertical rack 625 contacts the bottom wall of the box body 2 again, and finally the blocking seat 3 contacts the bottom of the box body 2 again. When the vertical rack 625 contacts the bottom wall of the box body 2, it stops moving, and then drives the transmission gear 627 to rotate. When the transmission gear 627 rotates, it drives the horizontal rack 623 to slide horizontally. When the horizontal rack 623 slides horizontally, it drives the push rod 624 at the end to move. The push rod 624 just pushes the handle of the fire extinguisher 4, so that the fire extinguisher 4 is operated, and the fire extinguisher 4 is discharged into the transformer chamber 21 through the fire extinguishing port 24. When the blocking seat 3 releases the bottom of the box body 2, it completely covers the vent 23 to prevent external air from entering the transformer chamber 21.

[0046] By pre-installing the fire extinguisher 4 on the outside of the blocking seat 3, when a fire occurs, the blocking seat 3 and the fire extinguisher 4 are moved upward, and the fire extinguisher 4 is operated at the same time, spraying the fire extinguishing agent into the transformer room 21 while blocking the vent 23. In the absence of air in the transformer room 21, the fire is more easily controlled and the fire extinguishing effect is better.

[0047] Example 3, see Figure 6 Different from the above embodiment, the top of the vertical rack 625 extends to the outside of the vertical guide rail 622, the top of the vertical rack 625 is fixedly connected with a return spring 629, and the bottom end of the return spring 629 is fixedly connected to the top of the vertical rack 625.

[0048] When the vertical rack 625 moves upward to contact the bottom wall of the box body 2, the return spring 629 is compressed by the vertical guide rail 622 that continues to move upward. When the control component 5 drives the blocking seat 3 and the assembly component 6 to move downward and reset, the elastic force of the return spring 629 drives the vertical rack 625 to reset.

[0049] By providing the return spring 629 , after the vertical rack 625 is used, the elastic force of the return spring 629 causes the vertical rack 625 to be returned to its original position, which is beneficial for enabling the driving member 62 to be reused multiple times.

[0050] Example 4, see Figure 2-Figure 8, which is different from the above-mentioned embodiment, the control component 5 has two transverse slide rails 502 symmetrically distributed on both sides of the blocking seat 3, and the two transverse slide rails 502 are fixed to the bottom wall of the box body 2. A first bidirectional screw 503 is provided in the two transverse slide rails 502, and both ends of the first bidirectional screw 503 are rotatably connected to the transverse slide rail 502. One end of the first bidirectional screw 503 extends to the outside of the transverse slide rail 502 and is fixed with a driven bevel gear 504. Two symmetrically distributed transverse sliders 505 are threadedly connected to the first bidirectional screw 503, and the two transverse sliders 505 are slidably connected to the slide rails. An inclined rod 506 is provided on the two transverse sliders 505. The bottom end of the inclined rod 506 is rotatably connected to the outer wall of the blocking seat 3, and the top end of the inclined rod 506 is rotatably connected to the transverse slider 505. The control component 5 also includes a transmission shaft 507 and a driving screw 508, the transmission shaft 507 is vertically distributed with the transverse slide rail 502, the driving screw 508 is parallelly distributed with the transverse slide rail 502, the driving screw 508 is rotatably connected with the box body 2 and one end is transmission-connected with the operating wheel 501, a transverse nut seat 509 is threadedly connected with the driving screw 508, a double rack 510 is fixed on the transverse nut seat 509, the double rack 510 is slidably connected with the bottom wall of the box body 2, the transmission shaft 507 is installed on the bottom wall of the box body 2 through a second bearing seat 511, two active bevel gears 512 are fixed on the transmission shaft 507, the active bevel gear 512 is meshed with the driven bevel gear 504, and a first gear 513 is fixed at the end of the transmission shaft 507, and the first gear 513 corresponds to the position of the double rack 510;

[0051] The surface of the first bidirectional screw 503 is provided with two groups of threads which are symmetrically distributed and rotate in opposite directions, the two horizontal sliders 505 are matched with the two groups of threads respectively and are symmetrically positioned, the bottom surface and the side surface of the double rack 510 are each provided with a group of tooth patterns, and in the initial state, the first gear 513 is arranged on the sliding path of the double rack 510;

[0052] When in use, rotating the operating wheel 501 drives the driving screw 508 to rotate, and when the driving screw 508 rotates, the double rack 510 is driven to move in the direction of the first gear 513, and then contacts and pushes the first gear 513 to rotate, and when the first gear 513 rotates, it drives the transmission shaft 507 to rotate, and when the transmission shaft 507 rotates, it drives the two active bevel gears 512 to rotate, and when the active bevel gear 512 rotates, it drives the driven bevel gear 504 to rotate, and when the driven bevel gear 504 rotates, it drives the first bidirectional screw 503 to rotate, and when the first bidirectional screw 503 rotates, it drives the two horizontal sliders 505 to slide at the same time, and the sliding directions are opposite, and when the horizontal slider 505 slides, it drives the top end of the inclined rod 506 to move, and when the top end of the four inclined rods 506 moves, the bottom end pulls the blocking seat 3 to move vertically upward, thereby driving the blocking seat 3 and the assembly component 6 and the fire extinguisher 4 on one side of the blocking seat 3 to move upward, so as to carry out fire extinguishing work;

[0053] By setting up the control component 5, through the principle of mechanical transmission, the blocking seat 3 and the fire extinguisher 4 can be driven to move vertically by rotating the operating wheel 501 far away from the box body 2, thereby realizing subsequent fire extinguishing work. Since the operating wheel 501 is far away from the box body 2, it will not be affected by the fire and high temperature during operation, which is safer.

[0054] Example 5, see Figure 8 , which is different from the above-mentioned embodiment, a driving shaft 514 is fixed on the operating wheel 501, and one end of the driving shaft 514 is connected to the end of the driving screw 508 through a universal joint;

[0055] Among them, the driving shaft 514 is set to an insulating material, which further improves the safety during operation. When in use, rotating the operating wheel 501 drives the driving shaft 514 to rotate. When the driving shaft 514 rotates, it drives the driving screw 508 to rotate through the universal joint. By setting the universal joint, the position and angle of the operating wheel 501 can be adjusted according to the actual terrain, thereby improving applicability.

[0056] Example 6, see Figure 7 , Fig. 9 and Fig.10 , which is different from the above embodiment, a vertical slide rail 7 is fixedly connected in the transformer chamber 21, and the vertical slide rail 7 is close to the inner wall of the box door 22. A second bidirectional screw 8 is rotatably connected in the vertical slide rail 7. Two vertical sliders 9 are threadedly connected to the second bidirectional screw 8. The two vertical sliders 9 are slidably connected to the vertical slide rail 7. Lock holes 10 are provided on the two vertical sliders 9. The bottom end of the second bidirectional screw 8 extends to the bottom of the box body 2 and is fixedly connected to a second gear 11. The second gear 11 corresponds to the position of the double rack 510. A door shaft 12 is fixed on the side of the box door 22 away from the vertical slide rail 7. The door shaft 12 is rotatably connected to the inner wall of the transformer chamber 21. The bottom end of the door shaft 12 extends to the bottom of the box body 2 and is fixed to a fourth gear 13. The edge of the fourth gear 13 is meshed with a third gear 14. The third gear 14 is movably connected to the bottom wall of the box body 2 through a rotating shaft 15. The third gear 14 corresponds to the position of the double rack 510.

[0057] Among them, the lock structure on the door 22 is the existing technology. The lock is mainly locked by inserting the upper and lower pins into the lock hole 10. The second bidirectional screw 8 is provided with two sets of symmetrical and oppositely rotating threads. The two vertical sliders 9 are matched with the two sets of threads respectively. The second gear 11 and the first gear 513 are respectively located at the two ends of the double rack 510. The second gear 11 and the third gear 14 are located on the moving path of the same end of the double rack 510, and the distance between the second gear 11 and the double rack 510 is smaller than the distance between the third gear 14 and the double gear.

[0058] When in use, if there is leakage discharge inside the transformer room 21, or after the fire is suppressed, the safety risk of manually opening the door 22 is also relatively large. At this time, the operating wheel 501 is rotated in the opposite direction to drive the driving screw 508 to rotate in the opposite direction. When the driving screw 508 rotates in the opposite direction, it drives the double rack 510 to move in the opposite direction. When the double rack 510 moves in the opposite direction, it first drives the second gear 11 to rotate, and then drives the third gear 14 to rotate. When the second gear 11 rotates, it drives the second bidirectional screw 8 to rotate. When the second bidirectional screw 8 rotates, it drives the two vertical slide blocks 9 to move in the opposite direction at the same time, so that the lock hole 10 is disengaged from the lock, and then the door is unlocked. After that, when the third gear 14 rotates, it drives the fourth gear 13 to rotate. When the fourth gear 13 rotates, it drives the door shaft 12 to rotate, and the door 22 is opened.

[0059] By setting an operating wheel 501, when driving the operating wheel 501 to control the double rack 510 to move in the opposite direction, the second gear 11, the third gear 14 and the fourth gear 13 can be driven to rotate in sequence, and then the lock on the door 22 is unlocked first, and then the door 22 is driven to open. This is beneficial for assisting in opening the door 22 before and after an electric leakage or fire accident, and will not damage the box body 2 and the door 22, nor affect the subsequent normal use of the door 22, and there is no need to manually touch the door 22, further reducing the safety risk.

[0060] 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 box-type transformer, comprising a main cement base, a box body, a transformer chamber arranged in the box body, a box door installed on the side wall of the transformer chamber, and a vent arranged on the bottom wall of the transformer chamber, characterized in that: The bottom wall of the transformer chamber is provided with a plurality of fire extinguishing ports, and the bottom of the box body is provided with a blocking seat, a fire extinguisher and a control assembly; The top of the blocking seat is provided with a plane with an area larger than the vent, and an assembly component is installed on the outer wall of the blocking seat; The control assembly is in transmission connection with the blocking seat, and is used to drive the blocking seat to move vertically. The control assembly includes an operating wheel extending to the far end of the box body; The assembly assembly includes a tank shell for fixing the fire extinguisher and a driving member installed on the tank shell, wherein the driving member is used to drive the fire extinguisher to operate; When a fire occurs, the operator controls the operating wheel at the far end of the box to operate the control component. When the control component operates, the blocking seat and the fire extinguisher on the blocking seat are driven to move upward. When the blocking seat moves upward, the vent is blocked. When the fire extinguisher moves upward, the output end is inserted into the transformer room through the fire extinguishing port. At the same time, the driving part operates, forcing the fire extinguisher to spray the fire extinguishing agent after it operates, so as to extinguish the fire inside the transformer room.

2. A box-type transformer according to claim 1, characterized in that: One end of the slot shell is fixed to the outer wall of the sealing seat, a positioning groove is arranged in the slot shell, a strip hole is opened in the bottom wall of the positioning groove, the assembly component also includes a vertically arranged positioning tube, the height of the positioning tube is higher than the top surface of the sealing seat, a connecting block is fixed between the side wall of the positioning tube and the sealing seat, a through groove is opened in the side wall of the positioning tube, and a detachable strap is fixed to the top of the slot shell.

3. A box-type transformer according to claim 2, characterized in that: The driving member includes a transverse guide rail fixed at the bottom of the slot shell and a vertical guide rail fixed at the end of the slot shell, a transverse rack is slidably connected to the transverse guide rail, a push rod is fixed at one end of the transverse rack, and a vertical rack is slidably connected to the vertical guide rail. A base shaft is also provided on the end surface of the slot shell, a transmission gear is fixed on the base shaft, and the transmission gear is meshed with the transverse rack and the vertical rack at the same time, and both ends of the base shaft are mounted on the end surface of the slot shell through a first bearing seat.

4. A box-type transformer according to claim 3, characterized in that: The top end of the vertical rack extends to the outside of the vertical guide rail, the top end of the vertical rack is fixedly connected to a return spring, and the bottom end of the return spring is fixedly connected to the top end of the vertical rack.

5. A box-type transformer according to claim 1, characterized in that: The control component has two transverse slide rails symmetrically distributed on both sides of the blocking seat, and the two transverse slide rails are fixed on the bottom wall of the box body. A first bidirectional screw is provided in the two transverse slide rails, and both ends of the first bidirectional screw are rotatably connected to the transverse slide rails. One end of the first bidirectional screw extends to the outside of the transverse slide rail and is fixed with a driven bevel gear. The first bidirectional screw is threadedly connected to two symmetrically distributed transverse sliding blocks, and the two transverse sliding blocks are slidably connected to the slide rails. An inclined rod is provided on the two transverse sliding blocks, and the bottom end of the inclined rod is rotatably connected to the outer wall of the blocking seat, and the top end of the inclined rod is rotatably connected to the transverse sliding block.

6. A box-type transformer according to claim 5, characterized in that: The control component also includes a transmission shaft and a driving screw, the transmission shaft is distributed perpendicularly to the transverse slide rail, the driving screw is distributed parallel to the transverse slide rail, the driving screw is rotatably connected to the box and one end is transmission-connected to the operating wheel, a transverse nut seat is threadedly connected to the driving screw, a double rack is fixed on the transverse nut seat, the double rack is slidably connected to the bottom wall of the box, the transmission shaft is installed on the bottom wall of the box through a second bearing seat, two active bevel gears are fixed on the transmission shaft, the active bevel gear is meshed with the driven bevel gear, a first gear is fixed to the end of the transmission shaft, and the first gear corresponds to the position of the double rack.

7. A box-type transformer according to claim 6, characterized in that: A driving shaft is fixed on the operating wheel, and one end of the driving shaft is connected to the end of the driving screw through a universal joint.

8. The box-type transformer according to claim 6, characterized in that: A vertical slide rail is fixedly connected in the transformer room, the vertical slide rail is close to the inner wall of the box door, a second bidirectional screw is rotatably connected in the vertical slide rail, two vertical sliders are threadedly connected to the second bidirectional screw, both of the two vertical sliders are slidably connected to the vertical slide rail, and lock holes are provided on the two vertical sliders, the bottom end of the second bidirectional screw extends to the bottom of the box body and is fixedly connected to a second gear, and the second gear corresponds to the position of the double rack.

9. A box-type transformer according to claim 8, characterized in that: A door shaft is fixed on the side of the box door away from the vertical slide rail, and the door shaft is rotatably connected to the inner wall of the transformer chamber. The bottom end of the door shaft extends to the bottom of the box body and is fixed with a fourth gear. The edge of the fourth gear is meshed with a third gear, and the third gear is movably connected to the bottom wall of the box body through a rotating shaft, and the third gear corresponds to the position of the double rack.

10. A transformer control method based on voltage regulation, characterized in that: The transformer control method based on voltage stabilization regulation uses a box-type transformer as described in any one of claims 1-9.

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