Plug-in transformer frame and transformer

Abstract

The present invention discloses a plug-in transformer skeleton and a transformer, and the present invention relates to the field of transformers. The plug-in transformer skeleton described in the present invention comprises a circuit board, a plurality of pins plugged into the surface of the circuit board near the edge, a lower skeleton slidably connected to the surface of the plurality of pins, an upper skeleton fixedly connected above the lower skeleton, mounting grooves equidistantly provided on the side of the lower skeleton, vertical grooves provided at the bottom of the mounting grooves, and through holes provided on the surface of the mounting grooves, the surface of the lower skeleton is symmetrically rotatably connected with an adjustment disk, the surface of the adjustment disk is provided with an annular groove, and the wall of the annular groove is rotatably connected with a connection block, the present invention avoids the disassembly and maintenance of the transformer by disassembling the circuit board, and when the transformer needs to be maintained or replaced, it can be disassembled and installed more conveniently, reducing the difficulty of operation during maintenance, thereby avoiding damage to the instrument itself caused by the disassembly and maintenance operation of the transformer.

Description

Technical Field

[0001] The invention relates to the field of transformers, and in particular to a plug-in transformer skeleton and a transformer. Background Art

[0002] Plug-in transformers are usually inserted into the circuit board through pins. This design allows the transformer to be connected to the circuit by plugging, thereby achieving electrical connection and providing the required electrical functions; the plug-in transformer skeleton refers to the supporting structure of this transformer, which is used to fix and support the various components of the transformer to ensure its stable operation.

[0003] The existing plug-in transformer is plugged into the surface of the circuit board and installed inside the instrument casing together with the circuit board. If a fault or damage occurs, resulting in malfunction or unstable output voltage, or the design or functional requirements of the circuit board change, or the capacity is insufficient to meet the required power requirements, it needs to be replaced. However, the internal space of the instrument is small, and the plug-in transformer is not necessarily installed in the opening of the instrument casing. Therefore, the circuit board needs to be removed to disassemble, replace and maintain the transformer, which increases the maintenance and replacement time and is inconvenient to operate. When the circuit board is removed, the electronic components or power supply on the circuit board may be touched, causing damage to the instrument.

[0004] Therefore, it is necessary to propose a plug-in transformer skeleton and a transformer to solve the above problems. Summary of the invention

[0005] The main purpose of the present invention is to provide a plug-in transformer skeleton and a transformer, which can effectively solve the problems in the background technology.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A plug-in transformer skeleton, comprising a circuit board, a plurality of pins plugged into the surface of the circuit board near the edge, a lower skeleton slidably connected to the surface of the plurality of pins, an upper skeleton fixedly connected to the upper part of the lower skeleton, mounting grooves equidistantly arranged on the side of the lower skeleton, vertical grooves arranged at the bottom of the mounting grooves, and through holes arranged on the surface of the mounting grooves, wherein the surface of the lower skeleton is symmetrically rotatably connected with an adjustment disk, the surface of the adjustment disk is provided with an annular groove, the groove wall of the annular groove is rotatably connected with a connecting block, a connecting column is fixedly connected below the connecting block, the plurality of pins are fixedly connected to the connecting column, and the surfaces of the two adjustment disks away from the lower skeleton are provided with an adjustment mechanism for adjusting the movement of the plurality of pins;

[0008] The adjustment mechanism includes a positioning component arranged on the surface of the installation groove for installing and positioning the upper frame and the lower frame, and a transmission component arranged above the plurality of pins for driving the positioning component to move.

[0009] Preferably, the transmission assembly includes a first transmission gear fixedly connected to the surface of the adjusting disk away from the lower frame, a rectangular groove is provided on the surface of the first transmission gear away from the adjusting disk, a second transmission gear is meshingly connected to the outer side of the first transmission gear, a transmission column is fixedly connected between the two second transmission gears, and the transmission column is rotatably connected to the lower frame.

[0010] Preferably, the positioning assembly includes a first gear fixedly connected to the surface of the transmission column at an equal distance, the outer side of the first gear is meshedly connected to the second gear, three of the second gears are fixedly connected to a worm between two of them, the upper side of the worm is meshedly connected to a worm wheel, the worm wheel is rotatably connected to the wall of the through hole, a cylinder is fixedly connected to the surface of the worm wheel, a spiral groove is provided on the surface of the cylinder, a protrusion is cooperated with the end of the spiral groove away from the worm wheel, a movable sleeve is sleeved on the outer side of the cylinder, the protrusion is fixedly connected to the movable sleeve, the two movable sleeves are slidably connected to the lower frame, the outer surface of the movable sleeve is fixedly connected to first elastic sheets evenly distributed in an annular shape, the end of the outer surface of the movable sleeve away from the cylinder is slidably connected to the movable column, and the end of the movable column away from the movable sleeve is rotatably connected to the top block;

[0011] The outer side of the second gear is meshedly connected with a lifting rack plate, and the lifting rack plate is slidably connected to the vertical slot. A plurality of arc grooves are provided on the surface of the lifting rack plate away from the vertical slot, and a second spring piece is installed on the surface of one of the arc grooves. A plurality of the second spring pieces are fixedly connected to the upper frame. A movable ring is slidably connected to the end of the lifting rack plate away from the vertical slot, and a third spring piece evenly distributed in a ring shape is fixedly connected to the surface of the movable ring. A plurality of the third spring pieces are fixedly connected to the lifting rack plate at one end away from the movable ring.

[0012] Preferably, an L-shaped column is fixedly connected above the movable ring.

[0013] Preferably, the plurality of arc-shaped grooves are equidistantly distributed on the surface of the lifting rack plate.

[0014] Preferably, limiting holes are equidistantly provided on one side of the surface of the upper frame close to the second elastic sheet, and the hole walls of the limiting holes are slidably connected to the lifting rack plate.

[0015] Preferably, the surface of the connecting block is T-shaped.

[0016] Preferably, a plurality of connection holes are provided on surfaces of the two adjustment disks close to the lower frame, and the plurality of connection holes extend through the adjustment disks to a surface of the first transmission gear away from the adjustment disks.

[0017] The present invention also provides a transformer, comprising the above-mentioned plug-in transformer skeleton.

[0018] Beneficial Effects

[0019] Compared with the prior art, the present invention provides a plug-in transformer skeleton and a transformer, which have the following beneficial effects:

[0020] 1. The plug-in transformer skeleton and transformer can insert a screwdriver into the rectangular groove through the opening of the instrument housing, rotate the screwdriver, drive the first transmission gear to rotate, and the adjusting disk rotates with the rotation of the first transmission gear, which is driven by the second transmission gear and the transmission column. The two first transmission gears rotate together, and relative movement occurs between the annular groove and the connecting block, thereby driving the connecting block to move upward, the connecting column moves upward with the connecting block, and the pin moves upward with the connecting column. The pin is separated from the circuit board, and the transformer can be disassembled, avoiding the need to disassemble and maintain the transformer by disassembling the circuit board. When the transformer needs to be maintained or replaced, it can be disassembled and installed more conveniently, reducing the difficulty of operation during the maintenance process, thereby avoiding damage to the instrument itself caused by the transformer disassembly and maintenance operation. Since multiple pins move together with the connecting column, angle deviation can be avoided during the insertion and withdrawal between the pins and the circuit board, thereby ensuring that the circuit board is not damaged during the insertion and withdrawal process.

[0021] 2. For the plug-in transformer frame and transformer, when the pins are inserted into the circuit board and the transformer is installed, the L-shaped column or the movable column is in close contact with the inner wall surface of the instrument housing, or both the L-shaped column and the movable column are in close contact with the inner wall surface of the instrument housing, and the first spring sheet or the third spring sheet is deformed, or both the first spring sheet and the third spring sheet are deformed. Through the limit design, the instrument is prevented from shifting or shaking during transportation or use, thereby reducing the risk of damage caused by vibration or external force.

[0022] 3. The plug-in transformer frame and transformer, when adjusting the rotation of the first transmission gear, the second transmission gear rotates with the rotation of the first transmission gear, and is driven by the transmission column, the first gear and the second gear, driving the lifting rack plate to move toward the direction close to the circuit board, and is driven by the worm gear, and the protrusion cooperates with the spiral groove, so that the movable column moves toward the direction close to the lower frame, and the movable column and the L-shaped column are separated from the inner wall of the instrument shell, thereby avoiding affecting the disassembly and maintenance of the entire transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the partial structure of the upper frame and the lower frame of the present invention;

[0024] Figure 2 The present invention Figure 1 Enlarged view of point A in the middle;

[0025] Figure 3 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 4 The present invention Figure 3 Enlarged view of point B in the middle;

[0027] Figure 5 It is a schematic diagram of the local structure of the inner wall of the instrument housing and the transformer of the present invention;

[0028] Figure 6 It is a schematic diagram of the partial structure of the top block and the movable column of the present invention;

[0029] Figure 7 It is a schematic diagram of the local structure of the connecting block and the connecting column of the present invention;

[0030] Figure 8 It is a partial structural schematic diagram of the first transmission gear and the second transmission gear of the present invention;

[0031] Fig. 9 The present invention Figure 8 Enlarged view of point C in the middle;

[0032] Fig.10 It is a schematic diagram of the partial structure of the upper frame and the adjustment disk of the present invention;

[0033] Fig.11 It is a partial structural schematic diagram of the transmission column and the lifting rack plate of the present invention;

[0034] Fig.12 The present invention Fig.11 Enlarged view of point D in the middle.

[0035] In the figure: 1, circuit board; 11, pin; 12, lower frame; 13, upper frame; 14, mounting slot; 15, vertical slot; 16, through hole; 2, adjustment plate; 3, annular slot; 4, connecting block; 5, connecting column; 6, adjustment mechanism; 61, positioning assembly; 611, first gear; 612, second gear; 613, worm; 614, worm wheel; 615, cylinder; 616, spiral slot; 617, bump; 618, Movable sleeve; 619, first spring piece; 6110, movable column; 6111, top block; 6112, lifting rack plate; 6113, arc groove; 6114, second spring piece; 6115, movable ring; 6116, third spring piece; 6117, L-shaped column; 62, transmission assembly; 621, first transmission gear; 622, rectangular groove; 623, second transmission gear; 624, transmission column; 7, limiting hole; 8, connecting hole. DETAILED DESCRIPTION

[0036] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0037] like Figure 1-12 As shown, a plug-in transformer skeleton comprises a circuit board 1, a plurality of pins 11 plugged into the surface of the circuit board 1 near the edge, a lower skeleton 12 slidably connected to the surface of the plurality of pins 11, an upper skeleton 13 fixedly connected above the lower skeleton 12, mounting grooves 14 equidistantly arranged on the side of the lower skeleton 12, vertical grooves 15 arranged at the bottom of the mounting grooves 14 and through holes 16 arranged on the surface of the mounting grooves 14, an adjusting disk 2 is symmetrically rotatably connected to the surface of the lower skeleton 12, an annular groove 3 is arranged on the surface of the adjusting disk 2, a connecting block 4 is rotatably connected to the groove wall of the annular groove 3, a connecting column 5 is fixedly connected below the connecting block 4, a plurality of pins 11 are fixedly connected to the connecting column 5, an adjusting mechanism 6 for adjusting the movement of the plurality of pins 11 is arranged on the surfaces of the two adjusting disks 2 away from the lower skeleton 12, and the surface of the connecting block 4 is T-shaped;

[0038] The adjustment mechanism 6 includes a positioning assembly 61 disposed on the surface of the installation groove 14 for installing and positioning the upper frame 13 and the lower frame 12 , and a transmission assembly 62 disposed above the plurality of pins 11 for driving the positioning assembly 61 to move.

[0039] The transmission assembly 62 includes a first transmission gear 621 fixedly connected to the surface of the adjustment disk 2 away from the lower frame 12, a rectangular groove 622 is provided on the surface of the first transmission gear 621 away from the adjustment disk 2, a second transmission gear 623 is meshedly connected to the outer side of the first transmission gear 621, a transmission column 624 is fixedly connected between the two second transmission gears 623, and the transmission column 624 is rotatably connected to the lower frame 12;

[0040] The transmission assembly can play a transmission role, so that the two first transmission gears 621 and the two adjustment disks 2 rotate simultaneously, thereby adjusting multiple pins 11 to be simultaneously plugged into the surface of the circuit board 1 or simultaneously separated from the circuit board 1.

[0041] The positioning assembly 61 includes a first gear 611 fixedly connected to the surface of the transmission column 624 at equal intervals, the outer side of the first gear 611 is meshed with a second gear 612, three second gears 612 are fixedly connected with worms 613 between each other, the upper part of the worm 613 is meshed with a worm wheel 614, the worm wheel 614 is rotatably connected to the wall of the through hole 16, the surface of the worm wheel 614 is fixedly connected with a cylinder 615, the surface of the cylinder 615 is provided with a spiral groove 616, and the spiral groove 616 is away from the worm wheel 614. A protrusion 617 is mounted on one end of the cylinder 615, a movable sleeve 618 is sleeved on the outer side of the cylinder 615, the protrusion 617 is fixedly connected to the movable sleeve 618, the two movable sleeves 618 are slidably connected to the lower frame 12, the outer surface of the movable sleeve 618 is fixedly connected to a first elastic piece 619 evenly distributed in an annular shape, the outer surface of the movable sleeve 618 is slidably connected to the end away from the cylinder 615 with a movable column 6110, and the end of the movable column 6110 away from the movable sleeve 618 is rotatably connected to a top block 6111;

[0042] The outer side of the second gear 612 is meshedly connected with a lifting rack plate 6112, and the lifting rack plate 6112 is slidably connected to the vertical slot 15. A plurality of arc grooves 6113 are provided on the surface of the lifting rack plate 6112 away from the vertical slot 15, and a second elastic piece 6114 is installed on the surface of one of the arc grooves 6113. The plurality of second elastic pieces 6114 are fixedly connected to the upper frame 13. A movable ring 6115 is slidably connected to the end of the lifting rack plate 6112 away from the vertical slot 15. The surface of the movable ring 6115 is fixedly connected with third elastic pieces 6116 evenly distributed in an annular shape, and the ends of the plurality of third elastic pieces 6116 away from the movable ring 6115 are fixedly connected to the lifting rack plate 6112;

[0043] In the process of adjusting the rotation of the first transmission gear 621, the L-shaped column 6117 and the movable column 6110 can be adjusted simultaneously to be in close contact with or separated from the inner wall surface of the instrument housing, so that the transformer can be stably installed and limited, or the disassembly between the transformer and the circuit board 1 can be avoided; by setting the L-shaped column 6117 and the movable column 6110, it can be ensured that the transformer can be installed and limited in both directions, or can be installed and limited in at least one direction.

[0044] An L-shaped column 6117 is fixedly connected to the upper part of the movable ring 6115;

[0045] The L-shaped column 6117 can contact the inner wall surface of the instrument housing, thereby stably installing and limiting the transformer.

[0046] A plurality of arc grooves 6113 are equidistantly distributed on the surface of the lifting rack plate 6112 .

[0047] Limiting holes 7 are equidistantly formed on one side of the surface of the upper frame 13 close to the second elastic piece 6114 , and the hole walls of the limiting holes 7 are slidably connected to the lifting rack plate 6112 .

[0048] A plurality of connection holes 8 are formed on the surfaces of the two adjustment disks 2 close to the lower frame 12. The plurality of connection holes 8 pass through the adjustment disks 2 and extend to the surface of the first transmission gear 621 away from the adjustment disks 2.

[0049] The arrangement of the connection holes 8 can ensure ventilation of the transformer during operation, which is beneficial to heat dissipation of the transformer.

[0050] The present invention also provides a transformer, comprising the above-mentioned plug-in transformer skeleton.

[0051] It should be noted that the present invention is a plug-in transformer frame and transformer. Initially, the pin 11 is in a state of being inserted into the circuit board 1, the movable column 6110 is in close contact with the inner wall surface of the instrument housing, the L-shaped column 6117 is in close contact with the inner wall surface of the instrument housing, the connecting column 5 and the connecting block 4 are both in a low position, and the upper frame 13 is fixedly connected to the lower frame 12;

[0052] When the transformer is installed at the corner of the circuit board 1, the movable column 6110 and the L-shaped column 6117 can be in close contact with the inner wall surface of the instrument housing. When the transformer needs to be disassembled and maintained, open the instrument housing, insert a screwdriver into the rectangular slot 622, adjust the first transmission gear 621 to rotate, the first transmission gear 621 is meshed and connected with the second transmission gear 623, the rotation of the first transmission gear 621 can drive the second transmission gear 623 to rotate, the adjusting disk 2 is fixedly connected to the first transmission gear 621, the adjusting disk 2 rotates with the rotation of the first transmission gear 621, a relative movement is generated between the connecting block 4 and the annular groove 3, which is driven by the transmission column 624, the two second transmission gears 623 rotate together, and the two second transmission gears 623 rotate together. A transmission gear 621 rotates together, and the two adjustment disks 2 rotate together. As the adjustment disk 2 rotates, the connection block 4 is adjusted to a high position, the connection column 5 is fixedly connected to the connection block 4, and the pin 11 is fixedly connected to the connection column 5. The pin 11 and the connection column 5 move upward together with the connection block 4, and the pin 11 is separated from the circuit board 1. Since the plurality of pins 11 move together with the connection column 5, angle deviation can be avoided during the insertion and withdrawal between the pin 11 and the circuit board 1, thereby ensuring that the circuit board 1 is not damaged during the insertion and withdrawal process. The transformer is disassembled without disassembling the circuit board 1, reducing the difficulty of operation during maintenance, thereby avoiding damage to the instrument itself caused by the transformer disassembly and maintenance operation;

[0053] During the rotation of the transmission column 624, the first gear 611 is fixedly connected to the transmission column 624, the first gear 611 is meshed with the second gear 612, the first gear 611 rotates as the transmission column 624 rotates, the second gear 612 rotates as the first gear 611 rotates, the second gear 612 and the first transmission gear 621 have the same rotation direction, the second gear 612 is meshed with the lifting rack plate 6112, and then drives the lifting rack plate 6112 to move downward, the second spring piece 6114 and the arc groove 6113 generate relative movement, and the L-shaped column 6117 rotates with the lifting The rack plate 6112 moves downward together, and the L-shaped column 6117 is separated from the inner wall of the instrument housing. At the same time, the worm 613 rotates as the second gear 612 rotates, and the worm wheel 614 meshes with the worm 613, thereby driving the cylinder 615 to rotate, and the protrusion 617 cooperates with the spiral groove 616, thereby driving the movable sleeve 618 to move in the direction close to the lower frame 12, and the movable column 6110 moves as the movable sleeve 618 moves, and the movable column 6110 is separated from the inner wall of the instrument housing. In the process of separating the adjustment pin 11 from the circuit board 1, it can avoid affecting the disassembly of the transformer;

[0054] When reinstalling the transformer after disassembly and maintenance, it is only necessary to place the transformer in its original position and use a screwdriver to adjust the first transmission gear 621 to rotate again. The adjusting disk 2 rotates with the rotation of the first transmission gear 621, and the rotation direction is opposite to that during disassembly. The connecting block 4 and the connecting column 5 move downward with the rotation of the first transmission gear 621 and the adjusting disk 2, and the pin 11 is inserted into the circuit board 1. In this process, the second transmission gear 623 and the transmission column 624 drive, the first gear 611 and the second gear 612 are adjusted to rotate, and the worm 613 rotates. The lifting rack plate 6112 moves in the direction away from the circuit board 1 as the second gear 612 rotates, thereby driving the L-shaped column 6117 to contact the inner wall surface of the instrument housing, and then, the movable ring 6115 and the lifting rack plate 6112 produce relative movement, and the third spring 6116 is deformed, and the elastic force of the third spring piece 6116 can ensure that the L-shaped column 6117 is in close contact with the inner wall surface of the instrument housing. The second spring piece 6114 cooperates with the arc groove 6113 to limit the lifting rack plate 6112, thereby further ensuring the stable installation of the transformer. The rotation of the worm 613 drives the worm wheel 614 to rotate. The cylinder 615 is fixedly connected to the worm wheel 614. The cylinder 615 rotates as the worm wheel 614 rotates. The protrusion 617 cooperates with the spiral groove 616 to drive the movable sleeve 618 to move, and then drives the movable column 6110 to move. The movable column 6110 contacts the inner wall surface of the instrument housing. The first spring piece 619 is deformed. The elastic force of the first spring piece 619 can prevent the instrument from shifting or shaking during transportation or use, thereby reducing the risk of damage caused by vibration or external force.

[0055] It should be noted that the top block 6111 is rotatably connected to the movable column 6110 and can adapt to close contact with the inner wall surface of the instrument housing at different angles, thereby ensuring that the transformer can be stably stressed.

[0056] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A plug-in transformer frame, comprising a circuit board (1), a plurality of pins (11) plugged into the surface of the circuit board (1) near the edge, a lower frame (12) slidably connected to the surface of the plurality of pins (11), an upper frame (13) fixedly connected to the upper part of the lower frame (12), mounting grooves (14) equidistantly provided on the side of the lower frame (12), vertical grooves (15) provided at the bottom of the mounting grooves (14), and through holes (16) provided on the surface of the mounting grooves (14), characterized in that: The surface of the lower frame (12) is symmetrically rotatably connected to an adjusting disk (2), the surface of the adjusting disk (2) is provided with an annular groove (3), the groove wall of the annular groove (3) is rotatably connected to a connecting block (4), a connecting column (5) is fixedly connected below the connecting block (4), the plurality of pins (11) are all fixedly connected to the connecting column (5), and the surfaces of the two adjusting disks (2) away from the lower frame (12) are provided with adjusting mechanisms (6) for adjusting the movement of the plurality of pins (11); The adjustment mechanism (6) comprises a positioning component (61) arranged on the surface of the installation groove (14) for installing and positioning the upper frame (13) and the lower frame (12), and a transmission component (62) arranged above the plurality of pins (11) for driving the positioning component (61) to move; The transmission assembly (62) comprises a first transmission gear (621) fixedly connected to the surface of the adjustment disk (2) away from the lower frame (12); a rectangular groove (622) is provided on the surface of the first transmission gear (621) away from the adjustment disk (2); a second transmission gear (623) is meshingly connected to the outer side of the first transmission gear (621); a transmission column (624) is fixedly connected between the two second transmission gears (623); and the transmission column (624) is rotatably connected to the lower frame (12); The positioning assembly (61) comprises a first gear (611) fixedly connected to the surface of a transmission column (624) at equal intervals, the outer side of the first gear (611) is meshingly connected to a second gear (612), three second gears (612) are fixedly connected to worms (613) between each other, the upper side of the worm (613) is meshingly connected to a worm wheel (614), the worm wheel (614) is rotatably connected to the wall of the through hole (16), the surface of the worm wheel (614) is fixedly connected to a cylinder (615), the surface of the cylinder (615) is provided with a spiral groove (616), and the spiral groove (616) is away from the worm wheel ( A protrusion (617) is mounted on one end of the cylinder (614), a movable sleeve (618) is sleeved on the outer side of the cylinder (615), the protrusion (617) is fixedly connected to the movable sleeve (618), the two movable sleeves (618) are slidably connected to the lower frame (12), the outer surface of the movable sleeve (618) is fixedly connected to a first elastic piece (619) evenly distributed in an annular shape, the outer surface of the movable sleeve (618) is slidably connected to an end of the outer surface of the movable sleeve (618) away from the cylinder (615) is slidably connected to a movable column (6110), and the end of the movable column (6110) away from the movable sleeve (618) is rotatably connected to a top block (6111); The outer side of the second gear (612) is meshingly connected with a lifting rack plate (6112), and the lifting rack plate (6112) is slidably connected to the vertical slot (15). A plurality of arc grooves (6113) are provided on the surface of the lifting rack plate (6112) away from the vertical slot (15), and a second spring sheet (6114) is mounted on the surface of one of the arc grooves (6113). The plurality of second spring sheets (6114) are fixedly connected to the upper frame (13). A movable ring (6115) is slidably connected to the end of the lifting rack plate (6112) away from the vertical slot (15), and the surface of the movable ring (6115) is fixedly connected with third spring sheets (6116) evenly distributed in a ring shape, and the ends of the plurality of third spring sheets (6116) away from the movable ring (6115) are fixedly connected to the lifting rack plate (6112); An L-shaped column (6117) is fixedly connected to the top of the movable ring (6115).

2. A plug-in transformer skeleton according to claim 1, characterized in that: The plurality of arc-shaped grooves (6113) are located on the surface of the lifting rack plate (6112) and are distributed at equal intervals.

3. The plug-in transformer skeleton according to claim 1, characterized in that: Limiting holes (7) are equidistantly formed on a side of the surface of the upper frame (13) close to the second spring sheet (6114), and the hole walls of the limiting holes (7) are slidably connected to the lifting rack plate (6112).

4. The plug-in transformer skeleton according to claim 1, characterized in that: The surface of the connecting block (4) is T-shaped.

5. The plug-in transformer skeleton according to claim 1, characterized in that: A plurality of connection holes (8) are provided on surfaces of the two adjustment disks (2) close to the lower frame (12), and the plurality of connection holes (8) pass through the adjustment disks (2) and extend to a surface of the first transmission gear (621) away from the adjustment disks (2).

6. A transformer, characterized in that: It comprises the plug-in transformer skeleton as described in any one of claims 1 to 5.

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