A transformer that is easy to assemble

Abstract

The present application relates to the technical field of transformer, and disclose a kind of transformer of convenient assembly, including top cover and installation half frame, top cover is connected with installation half frame, the right wall of installation half frame is movably penetrated by several screw rods, each screw rod is threadedly sleeved with moving strip, and the upper and lower ends of each moving strip are fixedly installed with trapezoidal block, moving strip is driven to move right by screw rod, so that corresponding upper wire column and lower wire column can be moved to the direction of mutual approach, so that coil can be easily extracted, then winding tube for winding new coil is sleeved on upper wire column and lower wire column, then coil is supported and winding tube is extracted, so that moving strip can be driven to move left by rotating screw rod, so that upper wire column and lower wire column can be squeezed by trapezoidal block and moved to the direction of mutual departure, so that coil can be lifted, so that coil can be fixed, so that user can conveniently disassemble and install coil.

Description

Technical Field

[0001] This invention relates to the technical field of transformers, specifically to a transformer that is easy to assemble. Background Technology

[0002] A transformer is a device that uses the principle of electromagnetic induction to change alternating current voltage. Its main components are the primary coil, secondary coil, and iron core. The main functions of a transformer include voltage transformation, current transformation, impedance transformation, isolation, and voltage stabilization (magnetic saturation transformer). According to its use, it can be divided into power transformers and special transformers. Transformers are the basic equipment for power transmission and distribution and are widely used in industry, agriculture, transportation, urban communities, and other fields. When the coils on a transformer have problems and need to be replaced, since the coils need to be wound around the magnetic core one turn at a time, the coils and magnetic cores are usually replaced together. Replacing the coils separately requires disassembling and rewinding the coils one turn at a time, but replacing them along with the magnetic core increases maintenance costs. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a transformer that is easy to assemble and has the advantages of allowing users to easily disassemble and install coils individually. This solves the problem that since coils need to be wound around a magnetic core one turn at a time, most people would replace the coil and the magnetic core together. However, replacing the coil separately requires disassembling and rewinding the coil one turn at a time, which increases maintenance costs when the coil is replaced along with the magnetic core.

[0004] To achieve the aforementioned goal of facilitating user-friendly disassembly and installation of coils, this invention provides the following technical solution: A transformer that is easy to assemble includes a top cover and a mounting half-frame. The top cover and the mounting half-frame are connected. Several screws are movably threaded through the right wall of the mounting half-frame. Each screw has a sliding strip threaded onto it. Trapezoidal blocks are fixedly installed at both ends of each sliding strip. Several fixing strips are fixedly installed on the right inner wall of the mounting half-frame. Several winding posts are movably connected inside the mounting half-frame. Each winding post includes an upper winding post and a lower winding post. Two sliding grooves are formed on each upper winding post and each lower winding post. Each fixing strip is movably connected to each sliding groove. Inclined grooves are formed on the lower side of each upper winding post and the upper side of each lower winding post. Each trapezoidal block is movably connected to each inclined groove. A winding tube is movably sleeved on each winding post. A coil is wound on each winding tube. A shell is movably sleeved on the mounting half-frame and is connected to the top cover.

[0005] Preferably, the front inner wall of the mounting half-frame is movably connected by two movable strips via hinges. Several blocks are fixedly installed on the side of the two movable strips that are close to each other, and each block is attached to the left side of each coil.

[0006] Preferably, each of the blocks on the upper movable strip has a horizontal groove on its left side. The front inner wall of the mounting half-frame is movably connected to a retaining strip via a hinge. The retaining strip is movably connected to each horizontal groove. Several sets of guide strips are fixedly installed on the upper side of the retaining strip. Each guide strip has a guide groove on its upper side. Each coil wire end is provided with a connecting end foot. Each end foot is movably connected to each guide groove. Several connecting grooves are provided on the right side of the top cover. Each connecting groove has a slot on its upper inner wall. Each guide strip is movably connected to each connecting groove. Each end foot is movably connected to each slot.

[0007] Preferably, each of the two movable bars has a plurality of threaded rods a through it, and each threaded rod a is threadedly fitted with a nut a, with the left side of each nut a respectively fitting against the right side of the two movable bars.

[0008] Preferably, each screw is fixedly fitted with a rotating column, each rotating column has an annular groove on its right side, each annular groove has a friction ring fixedly installed in it, a fixed column is fixedly inserted through the right wall of the outer shell, each fixed column has a circular groove on its left end, each circular groove has a friction tube fixedly installed in it, and each friction tube is respectively fitted onto each friction ring.

[0009] Preferably, a fixing frame is fixedly sleeved on the top cover, and a fixing groove is opened on each fixing frame. A bolt is movably connected in each fixing groove. Several connecting pipes are fixedly installed on the left side of the fixing frame. Each connecting pipe has a thread on its inner sidewall. A limit tube is threadedly connected in each connecting pipe. A limit ring is fixedly installed in each limit tube. Each bolt is threaded through the outer shell.

[0010] Preferably, the front and rear sides of the outer shell are movably connected to mounting brackets via hinges, each mounting bracket has a mounting plate fixedly installed inside, and each mounting bracket has two movable slots.

[0011] Preferably, each of the movable slots is movably connected with a threaded rod b, each threaded rod b is threaded with a nut b, and each threaded rod b is fixedly connected to the front and rear sides of the outer casing respectively.

[0012] Compared with the prior art, the present invention provides a transformer that is easy to assemble and has the following advantages:

[0013] 1. This easily assembled transformer allows the coil to be installed to be placed on the winding tube. When the coil needs to be replaced, rotating the screw back and forth moves the corresponding moving bar left and right. The screw moves the moving bar to the right, causing the upper and lower terminals to move closer together, making it easy to pull out the coil. Then, the winding tube with the new coil is fitted onto the upper and lower terminals, and after pressing against the coil, the winding tube is pulled out. Rotating the screw moves the moving bar to the left, causing the trapezoidal block to press the upper and lower terminals away from each other, thus supporting the coil and fixing it in place. This allows users to easily disassemble and install the coil individually.

[0014] 2. This easily assembled transformer allows for coil replacement by rotating two movable bars in opposite directions when disassembling the coil. This movement of the block facilitates coil replacement. Once the new coil is fitted, the two movable bars can be rotated in opposite directions to bring the block against the coil, allowing the user to easily remove the winding tube and further simplify coil installation.

[0015] 3. This easy-to-assemble transformer allows for coil replacement by rotating the moving clip forward. After coil replacement, the clip can be rotated back to its original position, allowing the coil's terminals to be placed in the corresponding guide slots. This ensures that the terminals are stabilized by the guide strips and guide slots when installing the top cover, making it easy for the user to insert the terminals into the slots and connect the coil to the top cover.

[0016] 4. This easily assembled transformer, when connecting the top cover to the mounting half-frame, after each threaded rod a passes through two movable bars, can be fixedly connected to the mounting half-frame by connecting the nut a to the threaded rod a, thus facilitating the subsequent installation of the outer casing and making it convenient for users.

[0017] 5. This easily assembled transformer, when installed by moving the outer casing to the left, can move each fixed post to the left, thereby moving each circular slot to the left, which in turn moves each friction tube to the left. This allows each friction tube to be fitted onto each friction ring, and the rotating post is fixed by the friction between the friction tube and the friction ring. This, in turn, fixes the corresponding screw, preventing the moving bar from shifting due to the screw rotating during use. This also prevents the upper and lower posts from moving closer to each other, which could cause the coil to loosen.

[0018] 6. This easy-to-assemble transformer allows users to insert bolts into the corresponding fixing slots and then thread the corresponding limiting tubes and connecting tubes. Users can then insert tools into the limiting rings and rotate the bolts to fix the top cover and the outer shell. When it is necessary to separate the bottom cover from the outer shell, the bolts can be removed by rotating them. The bolts are prevented from falling off or being lost due to the blocking effect of the limiting tubes and limiting rings, which would affect subsequent installation and use.

[0019] 7. This easily assembled transformer can be fixed to the installation location by two mounting brackets. When moving the device, each nut b can be removed, allowing the two mounting brackets to be rotated and moved. This makes it easy for the two mounting brackets to fit against the front and rear sides of the casing, thus avoiding the mounting brackets from affecting the transfer. When the mounting brackets are needed for installation, the two mounting brackets can be rotated and moved back to their original positions. Then, the mounting brackets can be fixed by connecting the nut b with the threaded rod, thus allowing the device to be installed using the mounting brackets. Attached Figure Description

[0020] Figure 1 This is a frontal perspective view of the present invention;

[0021] Figure 2 For the present invention Figure 1 A magnified schematic diagram of the partial structure at point A in the middle;

[0022] Figure 3 For the present invention Figure 1 Schematic diagram of the mounting bracket;

[0023] Figure 4 For the present invention Figure 1 Right view structural diagram of the top cover;

[0024] Figure 5 For the present invention Figure 4 A schematic diagram of the structure with the semi-frame installed in the middle;

[0025] Figure 6 For the present invention Figure 1 A schematic diagram of the right-side structure of the fixed frame in the middle;

[0026] Figure 7 For the present invention Figure 4 Cross-sectional three-dimensional structural diagram of the winding conduit;

[0027] Figure 8 For the present invention Figure 4 A schematic diagram of the right-side structure of the half-frame installation in the middle;

[0028] Figure 9 For the present invention Figure 8 A magnified schematic diagram of the local structure at point B;

[0029] Figure 10 For the present invention Figure 4 Schematic diagram of the central fixed column;

[0030] Figure 11 For the present invention Figure 1 A cross-sectional three-dimensional structural diagram of the fixed frame in the middle.

[0031] In the diagram: 1. Top cover; 2. Limiting ring; 3. Limiting tube; 4. Connecting tube; 5. Fixing frame; 6. Outer shell; 7. Mounting bracket; 8. Mounting plate; 9. Bolt; 10. Mounting half-frame; 11. Movable strip; 12. Screw; 13. Trapezoidal block; 14. Coil; 15. Inclined groove; 16. Winding post; 1601. Upper winding post; 1602. Lower winding post; 17. Slide groove; 18. Fixing strip; 19. Winding tube; 20. 21. Guide bar; 22. Guide groove; 23. End foot; 24. Horizontal groove; 25. Locking bar; 26. Block; 27. Fixing groove; 28. Threaded rod b; 29. ​​Nut b; 30. Movable groove; 31. Moving bar; 32. Rotating column; 33. Friction ring; 34. Annular wall groove; 35. Connecting groove; 36. Groove opening; 37. Fixing column; 38. Friction tube; 39. Circular groove; 40. Threaded rod a; 51. Nut a. Detailed Implementation

[0032] Please see Figures 1-11The present invention provides a technical solution: a transformer that is easy to assemble, comprising a top cover 1 and a mounting half-frame 10, the top cover 1 and the mounting half-frame 10 being connected, a plurality of screws 12 being movably inserted through the right wall of the mounting half-frame 10, each screw 12 having a sliding strip 30 threadedly sleeved on it, each sliding strip 30 having trapezoidal blocks 13 fixedly installed at its upper and lower ends, a plurality of fixing strips 18 being fixedly installed on the right inner wall of the mounting half-frame 10, a plurality of winding posts 16 being movably connected inside the mounting half-frame 10, each winding post 16 including an upper winding post 1601 and a lower winding post 1602, each upper winding post 1601 and each lower winding post 1602 having two sliding grooves 17, each fixing strip 18 being movably connected to each sliding groove 17, the lower side of each upper winding post 1601 being connected to each lower winding post 1602. Each lower winding post 1602 has an inclined groove 15 on its upper side. Each trapezoidal block 13 is movably connected to each inclined groove 15. Each winding post 16 has a winding tube 19 movably sleeved on it, and each winding tube 19 has a coil 14 wound on it. The mounting half-frame 10 has a housing 6 movably sleeved on it, and the housing 6 is connected to the top cover 1. By first setting the coil 14 to be installed on the winding tube 19, when the coil in the transformer needs to be replaced, the corresponding moving bar 30 can be moved left and right by rotating the screw 12 back and forth. Thus, the moving bar 30 can be moved to the right by the screw 12, so that the corresponding upper winding post 1601 and lower winding post 1602 can move closer to each other, so that the coil can be easily pulled out and then the new coil 14 can be wound. The winding tube 19 of coil 4 is sleeved on the upper wire post 1601 and the lower wire post 1602. After pressing against the coil 14, the winding tube 19 is pulled out, so that the moving bar 30 can be moved to the left by rotating the screw 12. This allows the trapezoidal block 13 to press the upper wire post 1601 and the lower wire post 1602 to move away from each other, thereby supporting the coil and fixing it. This makes it convenient for the user to disassemble and install the coil individually. The front inner wall of the mounting half-frame 10 is movably connected to two moving bars 11 by hinges. Several square blocks 25 are fixedly installed on the side of the two moving bars 11 that are close to each other. Each square block 25 is attached to the left side of each coil 14. When disassembling the coil 14, the half-frame 10 is rotated away from each other. Moving the two movable bars 11 moves the block 25, allowing the coil 14 to be replaced. Once the new coil 14 is fitted, the two movable bars 11 can be rotated and moved closer together, causing the block 25 to abut against the coil 14. This facilitates the user's removal of the winding tube 19 and further simplifies coil installation. Each block 25 on the upper movable bar 11 has a horizontal groove 23 on its left side. The front inner wall of the mounting half-frame 10 is hinged to a retaining strip 24, which is movably connected to each horizontal groove 23. Several sets of guide bars 20 are fixedly installed on the upper side of the retaining strip 24, each guide bar 20 having a guide groove 21 on its upper side. Each coil 14 has a connecting end 22 at its wire end.Each end 22 is movably connected to each guide groove 21. Several connecting grooves 34 are provided on the right side of the top cover 1. Each connecting groove 34 has an inner wall with a slot 35. Each guide bar 20 is movably connected to each connecting groove 34, and each end 22 is movably connected to each slot 35. The coil 14 can be replaced by rotating the retaining bar 24 forward. After the coil 14 is replaced, the retaining bar 24 can be rotated back to its original position, and then the end 22 on the coil 14 can be placed in the corresponding guide groove 21. This allows the guide bar 20 to work with the guide groove 21 to stabilize the end 22 when installing the top cover 1, making it easy for the user to insert the end 22 into the slot 35. This facilitates the user's connection of the coil to the top cover 1. The two movable bars 11 are connected by several threaded rods a39, each threaded rod a39 having a nut a40 threaded onto it. The left side of each nut a40 is fitted to the right side of the two movable bars 11. When connecting the top cover 1 to the mounting half-frame 10, after each threaded rod a39 passes through the two movable bars 11, the nut a40 is connected to the threaded rod a39 to fix the top cover 1 to the mounting half-frame 10, facilitating subsequent installation of the outer shell 6. This improves user convenience. Each screw 12 has a rotating column 31 fixedly fitted onto it. Each rotating column 31 has an annular groove 33 on its right side, and a friction ring 32 is fixedly installed in each annular groove 33. The right wall of the outer shell 6 is fixed... A fixed post 36 is inserted through the device. Each fixed post 36 has a circular groove 38 at its left end. A friction tube 37 is fixedly installed in each circular groove 38. Each friction tube 37 is fitted onto each friction ring 32. When the outer casing 6 is moved to the left for installation, each fixed post 36 moves to the left, which in turn moves each circular groove 38 to the left. This causes each friction tube 37 to move to the left, allowing it to fit onto each friction ring 32. The friction between the friction tube 37 and the friction ring 32 then fixes the rotating post 31, thereby fixing the corresponding screw 12. This prevents the moving bar 30 from moving due to the rotation of the screw 12 during device use, thus preventing the upper column from shifting. The movement of 1601 and lower post 1602 towards each other causes coil 14 to loosen. A fixing frame 5 is fixedly fitted onto the top cover 1. Each fixing frame 5 has a fixing groove 26, and a bolt 9 is movably connected in each fixing groove 26. Several connecting pipes 4 are fixedly installed on the left side of the fixing frame 5. Each connecting pipe 4 has threads on its inner sidewall and a limit tube 3 is threaded into each connecting pipe 4. A limit ring 2 is fixedly installed in each limit tube 3. Each bolt 9 is threaded through the outer shell 6. By inserting the bolt 9 into the corresponding fixing groove 26 and then threading the corresponding limit tube 3 to the corresponding connecting pipe 4, the user can insert a tool into the limit ring 2 and rotate the bolt 9 to fix the top cover 1 and the outer shell 6.When it is necessary to separate the bottom cover 1 from the outer shell 6, the rotating bolt 9 can be removed. Due to the obstruction of the limiting tube 3 and the limiting ring 2, the bolt 9 can be prevented from falling off and being lost, affecting subsequent installation and use. The front and rear sides of the outer shell 6 are movably connected to the mounting brackets 7 by hinges. Each mounting bracket 7 has a mounting plate 8 fixedly installed in it. Each mounting bracket 7 has two movable slots 29, and each movable slot 29 is movably connected to a threaded rod b27. Each threaded rod b27 is threaded with a nut b28. Each threaded rod b27 is fixedly connected to the front and rear sides of the outer shell 6. The device can be fixed to the installation location by the two mounting brackets 7. When moving the device, each nut b28 can be removed, so that the two mounting brackets 7 can be rotated and moved. This allows the two mounting brackets 7 to fit easily with the front and rear sides of the outer shell 6, thus avoiding the mounting brackets 7 from affecting the transfer. When it is necessary to use the mounting brackets 7 for installation, the two mounting brackets 7 can be rotated and moved back to their original positions. Then, the mounting brackets 7 can be fixed by connecting the nut b28 and the threaded rod 27, so that the device can be installed using the mounting brackets 7. ,

[0033] In use, the first step is to place the coil 14 to be installed on the winding tube 19. When the coil in the transformer needs to be replaced, the corresponding moving bar 30 can be moved left and right by rotating the screw 12 back and forth. The screw 12 can move the moving bar 30 to the right, so that the upper wire post 1601 and the lower wire post 1602 can move closer to each other, making it easy to pull out the coil. Then, the winding tube 19 with the new coil 14 is sleeved on the upper wire post 1601 and the lower wire post 1602. After pressing against the coil 14, the winding tube 19 is pulled out. The screw 12 can then be rotated to move the moving bar 30 to the left, so that the trapezoidal block 13 can squeeze the upper wire post 1601 and the lower wire post 1602 to move away from each other, thus supporting the coil and fixing it. This makes it convenient for the user to disassemble and install the coil individually.

[0034] Step 2: When disassembling coil 14, rotate and move the two movable bars 11 in a direction away from each other. This will move the block 25, allowing coil 14 to be replaced. After the new coil 14 is fitted, rotate and move the two movable bars 11 in a direction closer to each other. This will allow the block 25 to hold the coil 14 in place, making it easier for the user to pull out the winding tube 19 and further facilitate the installation of coil 14.

[0035] Step 3: The coil 14 can be replaced by rotating the moving clip 24 forward. After the coil 14 is replaced, the clip 24 can be rotated back to its original position. Then the end 22 on the coil 14 can be placed in the corresponding guide groove 21. When installing the top cover 1, the end 22 can be stabilized by the guide strip 20 and the guide groove 21, so that the user can easily insert the end 22 into the slot 35. This makes it easy for the user to connect the coil to the top cover 1.

[0036] Step 4: When connecting the top cover 1 to the mounting half-frame 10, after each threaded rod a39 passes through the two movable bars 11, the top cover 1 and the mounting half-frame 10 can be fixedly connected by connecting the nut a40 to the threaded rod a39, which facilitates the subsequent installation of the outer shell 6 and makes it convenient for users to use.

[0037] Step 5: When installing by moving the outer casing 6 to the left, each fixed post 36 can be moved to the left, which in turn moves each circular groove 38 to the left. This causes each friction tube 37 to move to the left, allowing each friction tube 37 to be fitted onto each friction ring 32. The rotating post 31 is then fixed by the friction between the friction tube 37 and the friction ring 32, thus fixing the corresponding screw 12. This prevents the moving bar 30 from moving when the screw 12 rotates during use, and also prevents the upper post 1601 and lower post 1602 from moving closer to each other, which could cause the coil 14 to loosen.

[0038] Step 6: After inserting the bolt 9 into the corresponding fixing groove 26, connect the corresponding limiting tube 3 and the corresponding connecting tube 4 by thread. Then, the user can insert the tool into the limiting ring 2 and rotate the bolt 9 to fix the top cover 1 and the outer shell 6. When it is necessary to separate the bottom cover 1 and the outer shell 6, after rotating the bolt 9 to disassemble, the bolt 9 can be prevented from falling off and being lost due to the obstruction of the limiting tube 3 and the limiting ring 2, which will affect subsequent installation and use.

[0039] Step 7: The device can be fixed to the installation location using two mounting brackets 7. When moving the device, each nut b28 can be removed, allowing the two mounting brackets 7 to be rotated and moved. This makes it easy for the two mounting brackets 7 to fit against the front and rear sides of the outer casing 6, thus avoiding the mounting brackets 7 from affecting the transfer. When the mounting brackets 7 need to be used for installation, the two mounting brackets 7 can be rotated and moved back to their original positions. Then, the mounting brackets 7 can be fixed by connecting the nuts b28 and the threaded rod 27, thus allowing the device to be installed using the mounting brackets 7.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A transformer that is easy to assemble, comprising a top cover (1) and a mounting half-frame (10), characterized in that: The top cover (1) is connected to the mounting half-frame (10). Several screws (12) are movably connected through the right wall of the mounting half-frame (10). Each screw (12) is threaded with a movable strip (30). Each movable strip (30) has trapezoidal blocks (13) fixedly installed at both ends. Several fixing strips (18) are fixedly installed on the right inner wall of the mounting half-frame (10). Several winding posts (16) are movably connected inside the mounting half-frame (10). Each winding post (16) includes an upper winding post (1601) and a lower winding post (1602). Each upper winding post (1601) and... Two grooves (17) are provided on each lower wire post (1602), and each fixing strip (18) is movably connected to each groove (17). An inclined groove (15) is provided on the lower side of each upper wire post (1601) and the upper side of each lower wire post (1602). Each trapezoidal block (13) is movably connected to each inclined groove (15). A winding tube (19) is movably sleeved on each winding post (16), and a coil (14) is wound on each winding tube (19). A shell (6) is movably sleeved on the mounting half frame (10), and the shell (6) is connected to the top cover (1).

2. The easily assembled transformer according to claim 1, characterized in that: The front inner wall of the mounting half-frame (10) is connected by two movable strips (11) via hinges. Several blocks (25) are fixedly installed on the side of the two movable strips (11) that are close to each other. Each block (25) is attached to the left side of each coil (14).

3. A transformer that is easy to assemble according to claim 2, characterized in that: A horizontal groove (23) is provided on the left side of each of the blocks (25) on the upper movable strip (11). A locking strip (24) is movably connected to the front inner wall of the mounting half frame (10) via a hinge. The locking strip (24) is movably connected to each horizontal groove (23). Several sets of guide strips (20) are fixedly installed on the upper side of the locking strip (24). A guide groove (21) is provided on the upper side of each guide strip (20). A connecting end foot (22) is provided at the wire end of each coil (14). Each end foot (22) is movably connected to each guide groove (21). Several connecting grooves (34) are provided on the right side of the top cover (1). A slot (35) is provided on the inner wall of each connecting groove (34). Each guide strip (20) is movably connected to each connecting groove (34). Each end foot (22) is movably connected to each slot (35).

4. A transformer that is easy to assemble according to claim 2, characterized in that: Several threaded rods a (39) are movably passed through both movable bars (11), and each threaded rod a (39) is threaded with a nut a (40), and the left side of each nut a (40) is respectively attached to the right side of the two movable bars (11).

5. A transformer that is easy to assemble according to claim 1, characterized in that: Each screw (12) is fixedly fitted with a rotating column (31), and each rotating column (31) has an annular wall groove (33) on its right side. Each annular wall groove (33) has a friction ring (32) fixedly installed inside. The right wall of the outer shell (6) is fixedly connected with a fixed column (36), and each fixed column (36) has a circular groove (38) on its left end. Each circular groove (38) has a friction tube (37) fixedly installed inside. Each friction tube (37) is respectively fitted onto each friction ring (32).

6. A transformer that is easy to assemble according to claim 1, characterized in that: A fixed frame (5) is fixedly sleeved on the top cover (1). A fixed groove (26) is opened on the fixed frame (5). A bolt (9) is movably connected in each fixed groove (26). Several connecting pipes (4) are fixedly installed on the left side of the fixed frame (5). A thread is opened on the inner side wall of each connecting pipe (4). A limit tube (3) is threadedly connected in each connecting pipe (4). A limit ring (2) is fixedly installed in each limit tube (3). Each bolt (9) is threaded through the outer shell (6).

7. A transformer that is easy to assemble according to claim 1, characterized in that: The front and rear sides of the outer shell (6) are connected to mounting brackets (7) by hinges. Each mounting bracket (7) has a mounting plate (8) fixedly installed inside it. Each mounting bracket (7) has two movable slots (29).

8. A transformer that is easy to assemble according to claim 7, characterized in that: Each of the movable slots (29) is movably connected to a threaded rod b (27), and each threaded rod b (27) is threaded with a nut b (28). Each threaded rod b (27) is fixedly connected to the front and rear sides of the outer shell (6).

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