Combined transformer convenient to disassemble, assemble and maintain

Abstract

The invention relates to the technical field of transformers, in particular to a combined transformer convenient to disassemble, assemble and overhaul, which comprises a combined box, a transformer box arranged in the combined box and a box cover mounted at the upper end of the transformer box, and steel frames are symmetrically and fixedly connected to the lower end of the transformer box. The transformer in the combined transformer can be rapidly and stably moved out of the combined box, at the moment, the disassembly and assembly operation space is expanded, the view field is wide, and therefore disassembly, assembly and maintenance are convenient. After the transformer is disassembled, when the box cover, the iron core and the winding are hoisted together through a crane, the box cover, the iron core and the winding can be supported firstly and do not need to be hoisted on the ground, then the box cover, the iron core and the winding do not shake in the overhauling process, and overhauling is facilitated. And after the maintenance is finished, the box cover, the iron core and the winding can be quickly and accurately mounted without being controlled and positioned by a worker, that is, the accurate mounting operation after the box cover, the iron core and the winding are dismounted is very convenient, and convenience is brought.

Description

Technical Field

[0001] The invention relates to the technical field of transformers, in particular to a combined transformer which is easy to disassemble, assemble and repair. Background Art

[0002] A combined transformer is an electrical device that combines a transformer, high-voltage switchgear, fuses, etc., and is centrally installed inside a combined box composed of multiple box panels. The combined box has multiple compartments to separate different devices for easy management.

[0003] The transformer in the combined transformer is mainly composed of a box body, a box cover, an iron core and a winding. The iron core and the winding are connected to the box cover, and the box cover and the box body are connected by multiple screws and nuts. When the transformer in the combined transformer fails, it is necessary to remove the screws between the box cover and the box body one by one, and the box cover needs to be lifted by a crane, so that the iron core and the winding can be taken out of the box body for comprehensive inspection and maintenance.

[0004] However, the transformer in the combined transformer is installed in the box, and the disassembly and assembly operation space is not only narrow, but also has a narrow field of vision. In addition, the transformer is relatively heavy and difficult to be quickly and stably moved out of the box, making it inconvenient to disassemble and repair. At the same time, when the cover of the transformer in the combined transformer is lifted, and the core and winding are taken out of the box together, the cover, core and winding need to be lifted to the ground for maintenance. After the maintenance is completed, the cover, core and winding need to be lifted again with the help of a crane and assembled on the box, which is time-consuming. In this process, the positioning between the cover, core, winding and box needs to be controlled by the staff, which determines whether the core and winding are accurately positioned inside the box and whether the screw holes between the cover and the box correspond. If the staff controls it, it is easy to install incorrectly, and the operation is not convenient, which is easy to cause inconvenience. Summary of the invention

[0005] The object of the present invention is to provide a combined transformer that is easy to disassemble and repair, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a combined transformer that is easy to disassemble and overhaul, comprising a combined box, a transformer box arranged inside the combined box, and a box cover installed on the upper end of the transformer box, the lower end of the transformer box is symmetrically fixedly connected with a steel frame, the lower ends of the two steel frames are commonly fixedly connected with a slide, a groove is provided at the inner bottom end of the combined box corresponding to the slide, the groove and the slide are slidably matched, a driving mechanism is provided between the slide and the combined box, a concave plate is fixedly connected to the edge of one side of the lower end of the slide, a concave plate is fitted to the edge of the other side of the lower end of the slide, the concave plate and the inner wall of the concave plate are rotatably connected with rollers, the two rollers are fitted with the bottom of the groove, self-adjusting mechanisms are provided between the front and rear edges of the upper end of the concave plate and the slide, and a positioning mechanism is provided between the box cover and the transformer box.

[0007] Preferably, the groove is arranged obliquely near the edge of the door of the combination box.

[0008] Preferably, the driving mechanism includes a motor and a limit column, the motor is fixedly installed on the inner bottom end of the combined box near the concave plate, one end of the limit column is fixedly connected to the inner wall of the combined box away from the motor, the output shaft end of the motor is fixedly connected with a stud, the transformer box is located between the stud and the limit column, the positions of the stud and the limit column correspond to each other, the stud and the limit column are rotatably connected to one end of the combined box door near the combination box door with a U-shaped block, the lower ends of the two U-shaped blocks are fixedly connected to the inner bottom end of the combined box, the outer wall of the stud is threadedly sleeved with a connecting plate near the motor, the limit column movably passes through the connecting plate, and the lower end of the connecting plate is fixedly connected to the upper end of the slide plate.

[0009] Preferably, the self-adjusting mechanism includes a connecting rod, which is fixedly connected to the upper end of the concave plate, and the connecting rod movably passes through the upper end of the slide, and the upper end of the connecting rod is fixedly connected to a limiting plate, and the upper end of the limiting plate is fixedly connected to a spring 1, and the upper end of the spring 1 is fixedly connected to a square tube, and the lower end of the square tube is fixedly connected to the upper end of the slide, and the limiting plate slides and fits inside the square tube, and a limiting mechanism is provided between the connecting rod and the slide.

[0010] Preferably, the limiting mechanism includes two square grooves and four triangular grooves, two of the square grooves are symmetrically opened on the inner wall of the slide plate corresponding to the connecting rod, the inner walls of the two square grooves are fixedly connected with fixed blocks, the inner walls of the two fixed blocks are slidably interspersed with connecting columns, and the corresponding ends of the two connecting columns are elastically connected with trapezoidal blocks through elastic components, two of the triangular grooves are symmetrically opened at the front end of the connecting rod, and the other two triangular grooves are symmetrically opened at the rear end of the connecting rod, and the two trapezoidal blocks are respectively slidably matched with the two triangular grooves located below.

[0011] Preferably, the limiting mechanism also includes two L-shaped rods and two L-shaped grooves, the two L-shaped rods are respectively fixedly connected to the ends of the two connecting columns that are far away from each other, the two L-shaped grooves are respectively opened on the inner wall of the slide corresponding to the two L-shaped rods, the two L-shaped grooves are respectively connected to the two square grooves, the two L-shaped rods are respectively slidably matched with the two L-shaped grooves, the top ends of the two L-shaped rods are fixedly connected to magnetic rods, and magnetic components are provided on the movement paths of the two magnetic rods.

[0012] Preferably, the elastic component includes a sliding block, which is fixedly connected to one end of the trapezoidal block corresponding to the connecting column, and the sliding block is slidably matched with the square groove. A second spring is fixedly connected between the sliding block and the fixed block, and the second spring is slidably sleeved on the outer wall of the connecting column.

[0013] Preferably, the magnetic assembly includes a splicing plate, which is fixedly connected to the internal vertical surface of the combination box near the lower edge, and the lower end of the splicing plate is symmetrically fixedly connected with magnetic blocks, and the positions of the two magnetic blocks and the two magnetic rods correspond.

[0014] Preferably, the positioning mechanism includes two triangular plates and four guide pillars, the two triangular plates are respectively fixedly connected to the front and rear ends of the transformer box near the upper edge, the four guide pillars are respectively fixedly connected to the front and rear edges of the lower end of the box cover in pairs, the four guide pillars are all movable through the upper end extension of the transformer box, the lower ends of the two guide pillars located in the front and the lower ends of the two guide pillars located in the rear are respectively fixedly connected with square shells, the interiors of the two square shells are slidably installed with trapezoidal plates through elastic mechanisms, and the two trapezoidal plates correspond to the positions of the two triangular plates respectively.

[0015] Preferably, the elastic mechanism includes two splicing columns, and the two splicing columns are symmetrically slidably inserted into the inner wall of the square shell away from the trapezoidal plate, one end of the two splicing columns located on the inner side of the square shell is fixedly connected to the vertical surface of the trapezoidal plate, and the other ends of the two splicing columns are commonly fixedly connected to a square frame, and springs three are slidably sleeved on the outer walls of the two splicing columns, and the two springs three are fixedly connected between the vertical surface of the trapezoidal plate and the inner wall of the square shell.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the cooperation of the slide plate, groove, driving mechanism, concave plate, concave plate, roller, self-adjusting mechanism, limiting mechanism, elastic component and magnetic component, the transformer in the combined transformer can be quickly and stably moved out of the combined box. At this time, the operating space for disassembly and assembly is expanded, and the field of vision is wide, so it is convenient for disassembly and assembly and maintenance.

[0017] 2. Through the cooperation of the positioning mechanism and the elastic mechanism, after the transformer in the combined transformer is disassembled, and the box cover, iron core and winding are lifted together by the crane, first the box cover, iron core and winding will be supported, and there is no need to hang them on the ground. Secondly, the box cover, iron core and winding will not shake during the maintenance process, which is conducive to maintenance. After the maintenance is completed, the box cover, iron core and winding can be quickly and accurately installed without the need for staff to control the positioning, that is, the accurate installation operation after the box cover, iron core and winding are disassembled is very convenient and brings convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 A partial cross-sectional view of a combined box of the present invention; Figure 3 For the present invention Figure 2 A magnified view of the structure at center; Figure 4 It is a partial cross-sectional view of the slide plate and the square tube of the present invention; Figure 5 For the present invention Figure 4 A magnified view of the structure at B in the middle; Figure 6 It is a bottom view of the transformer box and the slide plate of the present invention and a partial cross-sectional view of the square shell; Figure 7 For the present invention Figure 6 A magnified view of the structure at C in the middle; Figure 8 It is a partial cross-sectional view of the slide plate, the square tube and the connecting rod of the present invention; Fig. 9 It is a partial cross-sectional view of the square shell, square frame and trapezoidal plate of the present invention.

[0019] In the attached drawings, the list of components represented by each reference numeral is as follows: 1. Combination box; 2. Transformer box; 3. Steel frame; 4. Groove; 5. Slide plate; 6. Roller; 7. Stud; 8. Connecting plate; 9. Motor; 10. Guide column; 11. Box cover; 12. U-shaped block; 13. Magnetic block; 14. Splicing plate; 15. Square tube; 16. Magnetic rod; 17. L-shaped groove; 18. Square shell; 19. Spring one; 20. Fixed block; 21. Square groove; 22. L-shaped rod; 23. Concave plate; 24. Connecting rod; 25. Trapezoidal block; 26. Sliding block; 27. Spring two; 28. Connecting column; 29. ​​Triangular groove; 30. Limiting plate; 31. Square frame; 32. Concave plate; 33. Triangular plate; 34. Trapezoidal plate; 35. Spring three; 36. Splicing column; 37. Limiting column. DETAILED DESCRIPTION

[0020] 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.

[0021] Example 1: Please refer to Figure 1 - Fig. 9 A combined transformer that is easy to disassemble and overhaul, comprising a combined box 1, a transformer box 2 arranged inside the combined box 1, and a box cover 11 installed on the upper end of the transformer box 2, the lower end of the transformer box 2 is symmetrically fixedly connected with a steel frame 3, the lower ends of the two steel frames 3 are commonly fixedly connected with a slide plate 5, a groove 4 is provided at the inner bottom end of the combined box 1 corresponding to the slide plate 5, the groove 4 and the slide plate 5 are slidably matched, a driving mechanism is provided between the slide plate 5 and the combined box 1, and a concave plate 32 (such as Figure 6 As shown in the figure, a concave plate 23 is fitted at the other side edge of the lower end of the slide plate 5, and rollers 6 are rotatably connected to the inner walls of the concave plate 23 and the concave plate 32. The two rollers 6 are fitted with the bottom of the groove 4, and a self-adjusting mechanism is provided between the front and rear edges of the upper end of the concave plate 23 and the slide plate 5, and a positioning mechanism is provided between the box cover 11 and the transformer box 2.

[0022] The groove 4 is arranged obliquely near the edge of the door of the combined box 1 .

[0023] The driving mechanism includes a motor 9 and a limit column 37. The motor 9 is fixedly installed at the inner bottom end of the combined box 1 near the concave plate 32. One end of the limit column 37 is fixedly connected to the inner wall of the combined box 1 away from the motor 9. The output shaft end of the motor 9 is fixedly connected with a stud 7. The transformer box 2 is located between the stud 7 and the limit column 37. The positions of the stud 7 and the limit column 37 correspond to each other. The stud 7 and the limit column 37 are rotatably connected to one end of the box door of the combined box 1 with a U-shaped block 12. The lower ends of the two U-shaped blocks 12 are fixedly connected to the inner bottom end of the combined box 1. The outer wall of the stud 7 is near the motor 9 and is threadedly sleeved with a connecting plate 8. The limit column 37 movably passes through the connecting plate 8. The lower end of the connecting plate 8 is fixedly connected to the upper end of the slide plate 5.

[0024] The self-adjusting mechanism includes a connecting rod 24 (such as Figure 5 As shown in the figure, the connecting rod 24 is fixedly connected to the upper end of the concave plate 23, and the connecting rod 24 movably passes through the upper end of the slide plate 5. The upper end of the connecting rod 24 is fixedly connected to the limit plate 30, and the upper end of the limit plate 30 is fixedly connected to the spring 19, and the upper end of the spring 19 is fixedly connected to the square tube 15. The lower end of the square tube 15 is fixedly connected to the upper end of the slide plate 5, and the limit plate 30 is slidably fitted inside the square tube 15. A limiting mechanism is provided between the connecting rod 24 and the slide plate 5.

[0025] The limiting mechanism includes two square grooves 21 and four triangular grooves 29. The two square grooves 21 are symmetrically arranged on the inner wall of the slide plate 5 corresponding to the connecting rod 24. The inner walls of the two square grooves 21 are fixedly connected with fixed blocks 20. The inner walls of the two fixed blocks 20 are slidably interspersed with connecting columns 28. The corresponding ends of the two connecting columns 28 are elastically connected with trapezoidal blocks 25 through elastic components. Two triangular grooves 29 are symmetrically arranged at the front end of the connecting rod 24, and the other two triangular grooves 29 are symmetrically arranged at the rear end of the connecting rod 24. The two trapezoidal blocks 25 are respectively slidably matched with the two triangular grooves 29 located below.

[0026] The limiting mechanism also includes two L-shaped rods 22 and two L-shaped grooves 17 (combined Figure 3 and Figure 8 ), two L-shaped rods 22 are respectively fixedly connected to the ends of the two connecting columns 28 that are away from each other, two L-shaped grooves 17 are respectively opened on the inner wall of the slide plate 5 corresponding to the two L-shaped rods 22, the two L-shaped grooves 17 are respectively connected to the two square grooves 21, the two L-shaped rods 22 are respectively slidably matched with the two L-shaped grooves 17, the top ends of the two L-shaped rods 22 are fixedly connected to the magnetic rods 16, and magnetic components are provided on the movement paths of the two magnetic rods 16.

[0027] The elastic component includes a sliding block 26, which is fixedly connected to one end of the connecting column 28 corresponding to the trapezoidal block 25, and the sliding block 26 is slidably matched with the square groove 21. A spring 27 is fixedly connected between the sliding block 26 and the fixed block 20, and the spring 27 is slidably sleeved on the outer wall of the connecting column 28.

[0028] The magnetic assembly includes a splicing plate 14, which is fixedly connected to the inner vertical surface of the combination box 1 near the lower edge. The lower end of the splicing plate 14 is symmetrically fixedly connected with a magnetic block 13, and the positions of the two magnetic blocks 13 and the two magnetic rods 16 correspond to each other.

[0029] In this embodiment, when the transformer box 2 inside the combined box 1 fails, the corresponding box door is opened first, and then the motor 9 is started. The motor 9 can drive the stud 7 to rotate on the corresponding U-shaped block 12, and the stud 7 can drive the connecting plate 8 to move toward the outside of the combined box 1, and the connecting plate 8 will also slide on the outer wall of the limit column 37, and the connecting plate 8 can drive the slide plate 5 to slide in the groove 4 in the combined box 1, and the slide plate 5 can drive the transformer box 2, the concave plate 32, the concave plate 23 and the four magnetic rods 16 and other components connected to the slide plate 5 to move toward the outside of the combined box 1, and the rollers 6 on the concave plates 32 and 23 will roll in the groove 4.

[0030] Among the four magnetic rods 16, each of the two adjacent magnetic rods 16 will pass outside the corresponding two magnetic blocks 13, and each of the two adjacent magnetic rods 16 will pass outside the corresponding two magnetic blocks 13 (such as Figure 3 As shown), when the two adjacent magnetic rods 16 at each location move to the outside of the corresponding two magnetic blocks 13, the two magnetic rods 16 repel each other with magnetic force from the two magnetic blocks 13, then the two adjacent magnetic rods 16 at each location will move away from each other and slide in the corresponding L-shaped groove 17, then the two adjacent magnetic rods 16 at each location will drive the connecting column 28 connected to each location to slide away from the corresponding connecting rod 24 in the corresponding fixed block 20, each connecting column 28 will drive the sliding block 26 connected to each location to slide away from the corresponding connecting rod 24 in the corresponding square groove 21, each sliding block 26 will squeeze the spring 27 connected to the corresponding fixed block 20, and each sliding block 26 will drive the trapezoidal block 25 connected to each location to leave the corresponding Triangular groove 29, then the two connecting rods 24 will lose the restriction of the corresponding two trapezoidal blocks 25, then the two springs 19 in the squeezed state will automatically open, and the two springs 19 will push the respectively connected limit plates 30 downward until they are fitted on the upper end of the slide plate 5, then the connecting rod 24 connected under the two limit plates 30 will slide downward in the inner wall of the slide plate 5, and drive the concave plates 23 connected at the lower ends of the two connecting rods 24 to move downward, and at this time the rollers 6 on the concave plates 23 will also move to the outside of the combination box 1, then the rollers 6 on the concave plates 23 will just fit tightly on the external ground, and at this time the two triangular grooves 29 located above each connecting rod 24 will correspond to the corresponding two trapezoidal blocks 25 respectively.

[0031] When each of the two adjacent magnetic rods 16 moves over the corresponding two magnetic blocks 13, then under the force of the spring 27, each of the two adjacent magnetic rods 16, the two adjacent connecting columns 28, the two adjacent sliding blocks 26, and the two adjacent trapezoidal blocks 25 will automatically move closer to each other, and each of the two adjacent trapezoidal blocks 25 will automatically insert into the two triangular grooves 29 located above the corresponding connecting rod 24, then the downward movement of the slide plate 5 will be restricted by the four trapezoidal blocks 25, and the slide plate 5 will be One side of the lower end is supported on the ground by a roller 6, and the other side of the lower end of the skateboard 5 is supported on the combination box 1 by another roller 6. Therefore, the load-bearing capacity and stability of the skateboard 5 when moved out of the combination box 1 will be greatly improved, avoiding the skateboard 5 being unable to stably bear the weight of the transformer box 2 due to a single support point. The two support points can stably support the heavy transformer box 2 until the skateboard 5 drives the transformer box 2 to the maximum distance outside the combination box 1. At this time, the operating space for disassembly and assembly is expanded, and the field of vision is wide, which facilitates disassembly and assembly and maintenance.

[0032] It should be noted that, after the transformer box 2 is disassembled and overhauled, the two motors 9 are used to drive the two studs 7 to reverse, so that the slide plate 5 can drive the transformer box 2, the concave plate 32, the concave plate 23 and the four magnetic rods 16 and other components connected to the slide plate 5 to move toward the combination box 1. Similarly, each two adjacent magnetic rods 16 will pass outside the corresponding two magnetic blocks 13 and move away from each other to drive each two adjacent trapezoidal blocks 25 to leave the two triangular grooves 29 located above on the corresponding connecting rod 24, and at this time, the rollers 6 on the concave plate 23 will roll upward along the inclined edge of the groove 4 close to the door of the combination box 1, thereby driving the concave plate 23 and When the two connecting rods 24 move upward, the two connecting rods 24 will drive the respective connected limit plates 30 to squeeze the spring 19 connected to the corresponding square tube 15, and at this time, the two triangular grooves 29 located below the two connecting rods 24 will correspond to the corresponding two trapezoidal blocks 25 respectively, until the roller 6 on the concave plate 23 rolls into the groove 4, and at this time, each adjacent two magnetic rods 16 will move over the corresponding two magnetic blocks 13, and then each adjacent two magnetic blocks 13 will automatically insert into the two triangular grooves 29 located below each connecting rod 24, until the slide plate 5 moves completely with the transformer box 2 into the combined box 1, and at this time all the components will return to their original positions, such as Figure 1 - Figure 8 shown.

[0033] Example 2: Please refer to Figure 2 , Figure 4 , Figure 6 , Figure 7 and Fig. 9 The positioning mechanism includes two triangular plates 33 and four guide pillars 10. The two triangular plates 33 are respectively fixedly connected to the front and rear ends of the transformer box 2 near the upper edge. The four guide pillars 10 are respectively fixedly connected to the front and rear edges of the lower end of the box cover 11 in pairs. The four guide pillars 10 are all movable through the upper end extension of the transformer box 2. The lower ends of the two guide pillars 10 located in the front and the lower ends of the two guide pillars 10 located in the rear are respectively fixedly connected with the square shell 18. The interiors of the two square shells 18 are slidably installed with trapezoidal plates 34 through elastic mechanisms. The two trapezoidal plates 34 correspond to the positions of the two triangular plates 33 respectively.

[0034] The elastic mechanism includes two splicing columns 36 (such as Figure 7 As shown in the figure, the two splicing columns 36 are symmetrically slidably inserted into the inner wall of the square shell 18 away from the trapezoidal plate 34, and one end of the two splicing columns 36 located on the inner side of the square shell 18 is fixedly connected to the vertical surface of the trapezoidal plate 34, and the other ends of the two splicing columns 36 are commonly fixedly connected to the square frame 31, and the outer walls of the two splicing columns 36 are slidably sleeved with springs 35, and the two springs 35 are fixedly connected between the vertical surface of the trapezoidal plate 34 and the inner wall of the square shell 18.

[0035] In this embodiment, when the transformer box 2 is moved out of the combined box 1 to the maximum distance, the screws connecting the box cover 11 and the transformer box 2 can be removed one by one (the screws are not shown in the figure, this is a well-known prior art and will not be described in detail), and then the box cover 11 is lifted by a crane, and the box cover 11 will move up together with the iron core and the winding, and the box cover 11 will drive the four guide pillars 10 to slide upward in the upper extension of the transformer box 2. Among the four guide pillars 10, each of the two adjacent guide pillars 10 will drive a square shell 18 and the trapezoidal plates 34 inside the square shell 18 to move up together, and the inclined surfaces of the two trapezoidal plates 34 will move up to the inclined surfaces of the two triangular plates 33 on the transformer box 2 respectively. Then, under the action of the extrusion force, each trapezoidal plate 34 will slide toward the corresponding square shell 18 and drive their respective The two connected splicing columns 36 slide away from the transformer box 2 in the corresponding square shell 18, and will squeeze the two correspondingly connected spring three 35, and the two splicing columns 36 will drive the square frame 31 to move together until the two trapezoidal plates 34 move over their respective corresponding triangular plates 33. Then, under the action of the spring three 35, the two trapezoidal plates 34 will be reset and moved out of the corresponding square shell 18, and at this time, the lower ends of the two trapezoidal plates 34 will be respectively attached to the upper ends of the two triangular plates 33. At this time, the box cover 11 can support the box cover 11, the iron core and the winding under the support between the two trapezoidal plates 34 and the two triangular plates 33, so that it is convenient to carry out maintenance work, and under the action of the four guide columns 10, the box cover 11, the iron core and the winding will not shake during the maintenance process, which is conducive to the maintenance work.

[0036] After the inspection and maintenance is completed, only two workers need to pull the two square frames 31 outwards respectively to drive the lower ends of the two trapezoidal plates 34 to leave the upper ends of the two triangular plates 33 respectively, and then lower the box cover 11, the iron core and the winding by the crane. Then, under the guidance of the four guide pillars 10, the box cover 11, the iron core and the winding can be accurately installed without the need for the workers to control the positioning, that is, the accurate installation operation of the box cover 11, the iron core and the winding after disassembly is very convenient, which brings convenience.

[0037] 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.

[0038] 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 combined transformer that is easy to disassemble and overhaul, comprising a combined box (1), a transformer box (2) arranged inside the combined box (1), and a box cover (11) installed on the upper end of the transformer box (2), characterized in that: The lower end of the transformer box (2) is symmetrically fixedly connected to a steel frame (3), and the lower ends of the two steel frames (3) are commonly fixedly connected to a slide plate (5). A groove (4) is provided at the inner bottom end of the combined box (1) corresponding to the slide plate (5), and the groove (4) and the slide plate (5) are slidably matched. A driving mechanism is provided between the slide plate (5) and the combined box (1). A concave plate (32) is fixedly connected to an edge of one side of the lower end of the slide plate (5), and a concave plate (23) is fitted to an edge of the other side of the lower end of the slide plate (5). The inner walls of the concave plate (23) and the concave plate (32) are rotatably connected to rollers (6), and the two rollers (6) are fitted to the bottom of the groove (4). Self-adjusting mechanisms are provided between the front and rear edges of the upper end of the concave plate (23) and the slide plate (5), and a positioning mechanism is provided between the box cover (11) and the transformer box (2).

2. A combined transformer that is easy to disassemble and repair according to claim 1, characterized in that: The groove (4) is arranged obliquely near the edge of the door of the combined box (1).

3. The combined transformer that is easy to disassemble and repair according to claim 1 is characterized in that: The driving mechanism comprises a motor (9) and a limiting column (37); the motor (9) is fixedly mounted at the bottom end of the assembly box (1) near the concave plate (32); one end of the limiting column (37) is fixedly connected to the inner wall of the assembly box (1) away from the motor (9); a stud (7) is fixedly connected to the output shaft end of the motor (9); the transformer box (2) is located between the stud (7) and the limiting column (37); and the stud (7) and the limiting column (37) are located between the stud (7) and the limiting column (37). The studs (7) and the limiting columns (37) are arranged to correspond to each other, one end of the stud (7) and the limiting column (37) near the door of the combined box (1) are rotatably connected to a U-shaped block (12), the lower ends of the two U-shaped blocks (12) are fixedly connected to the inner bottom end of the combined box (1), the outer wall of the studs (7) near the motor (9) is commonly threadedly sleeved with a connecting plate (8), the limiting column (37) movably penetrates the connecting plate (8), and the lower end of the connecting plate (8) is fixedly connected to the upper end of the slide plate (5).

4. The combined transformer that is easy to disassemble and repair according to claim 1 is characterized in that: The self-adjusting mechanism comprises a connecting rod (24), the connecting rod (24) being fixedly connected to the upper end of the concave plate (23), the connecting rod (24) movably passing through the upper end of the slide plate (5), the upper end of the connecting rod (24) being fixedly connected to a limit plate (30), the upper end of the limit plate (30) being fixedly connected to a spring 1 (19), the upper end of the spring 1 (19) being fixedly connected to a square tube (15), the lower end of the square tube (15) being fixedly connected to the upper end of the slide plate (5), the limit plate (30) being slidably fitted inside the square tube (15), and a limiting mechanism being provided between the connecting rod (24) and the slide plate (5).

5. The combined transformer that is easy to disassemble and repair according to claim 4 is characterized in that: The limiting mechanism comprises two square grooves (21) and four triangular grooves (29), the two square grooves (21) being symmetrically arranged on the inner wall of the slide plate (5) corresponding to the connecting rod (24), the inner walls of the two square grooves (21) being fixedly connected with a fixing block (20), the inner walls of the two fixing blocks (20) being slidably interspersed with a connecting column (28), the corresponding ends of the two connecting columns (28) being elastically connected with a trapezoidal block (25) via an elastic component, wherein two triangular grooves (29) are symmetrically arranged on the front end of the connecting rod (24) in the upper and lower parts, and the other two triangular grooves (29) are symmetrically arranged on the rear end of the connecting rod (24), and the two trapezoidal blocks (25) are respectively slidably matched with the two triangular grooves (29) located below.

6. The combined transformer that is easy to disassemble and repair according to claim 5 is characterized in that: The limiting mechanism further comprises two L-shaped rods (22) and two L-shaped grooves (17); the two L-shaped rods (22) are respectively fixedly connected to the ends of the two connecting columns (28) that are away from each other; the two L-shaped grooves (17) are respectively arranged on the inner wall of the slide plate (5) corresponding to the two L-shaped rods (22); the two L-shaped grooves (17) are respectively connected to the two square grooves (21); the two L-shaped rods (22) are respectively slidably matched with the two L-shaped grooves (17); the top ends of the two L-shaped rods (22) are respectively fixedly connected to magnetic rods (16); and magnetic components are respectively arranged on the movement paths of the two magnetic rods (16).

7. The combined transformer that is easy to disassemble and repair according to claim 5 is characterized in that: The elastic component comprises a sliding block (26), the sliding block (26) being fixedly connected to one end of the connecting column (28) corresponding to the trapezoidal block (25), the sliding block (26) being slidably matched with the square groove (21), a second spring (27) being fixedly connected between the sliding block (26) and the fixed block (20), the second spring (27) being slidably sleeved on the outer wall of the connecting column (28).

8. The combined transformer that is easy to disassemble and repair according to claim 6 is characterized in that: The magnetic assembly comprises a splicing plate (14), the splicing plate (14) being fixedly connected to an internal vertical surface of the combined box (1) near a lower edge, the lower end of the splicing plate (14) being symmetrically fixedly connected to a magnetic block (13), the positions of the two magnetic blocks (13) and the two magnetic rods (16) corresponding to each other.

9. The combined transformer that is easy to disassemble and repair according to claim 1 is characterized in that: The positioning mechanism comprises two triangular plates (33) and four guide pillars (10), the two triangular plates (33) being fixedly connected to the front and rear ends of the transformer box (2) near the upper edge, respectively, the four guide pillars (10) being fixedly connected in pairs to the front and rear edges of the lower end of the box cover (11), the four guide pillars (10) being movably passed through the upper extension of the transformer box (2), the lower ends of the two guide pillars (10) located in the front and the lower ends of the two guide pillars (10) located in the rear being fixedly connected to a square shell (18), the interiors of the two square shells (18) being slidably mounted with a trapezoidal plate (34) via an elastic mechanism, the two trapezoidal plates (34) corresponding to the positions of the two triangular plates (33) respectively.

10. The combined transformer that is easy to disassemble and repair according to claim 9, characterized in that: The elastic mechanism comprises two splicing columns (36), the two splicing columns (36) are symmetrically slidably inserted into the inner wall of the square shell (18) away from the trapezoidal plate (34), one end of the two splicing columns (36) located on the inner side of the square shell (18) is fixedly connected to the vertical surface of the trapezoidal plate (34), and the other ends of the two splicing columns (36) are fixedly connected to the square frame (31), and the outer walls of the two splicing columns (36) are slidably sleeved with springs three (35), and the two springs three (35) are fixedly connected between the vertical surface of the trapezoidal plate (34) and the inner wall of the square shell (18).

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