Box-type combined transformer

Abstract

The utility model provides a box-type combined transformer, relates to the technical field of transformers, and aims to solve the technical problems that in the prior art, when a box-type combined transformer is mounted or dismounted, single-person operation is inconvenient, and mounting is strenuous. A box-type combined transformer comprises a base and a protection box arranged at the top end of the base, a box door capable of being opened or closed is arranged at the front end of the protection box, the box-type combined transformer further comprises a transformer assembly, an installation assembly and a locking assembly, and the transformer assembly comprises a supporting base and a transformer body connected to the top end of the supporting base; the mounting assembly comprises a guide rod, a mounting base and a moving block, the mounting base is slidably connected into the protection box in the front-back direction, the supporting base is detachably connected to the top end of the mounting base, and the moving block is arranged on the mounting base and slidably connected to the guide rod; the locking assembly comprises a fixing plate and a second fixing bolt, the fixing plate is connected to the bottom end in the protection box, and a threaded hole is formed in the side wall of the mounting base.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a box-type combined transformer. Background Art

[0002] A box-type combined transformer integrates multiple functional units into a single enclosure, typically made of steel or alloy, offering excellent sealing and protection. The box-type combined transformer is typically a relatively small rectangular enclosure, effectively saving installation space. The transformer is fixedly mounted within the enclosure. This compact design allows for installation in limited space, such as on city streets, in residential distribution rooms, or in factory load centers.

[0003] Chinese patent CN217982995U discloses a box-type combined transformer, comprising an outer protective box, wherein the lower side wall of the outer protective box is provided with a mounting assembly, and a transformer assembly is mounted on the mounting assembly; the mounting assembly comprises a mounting seat provided on the lower side wall of the outer protective box, a mounting groove is provided on the top surface of the mounting seat, connecting rods are provided in front of the left and right sides of the mounting seat, and a pull button is provided on the outer side of the connecting rod. In the above patent, when installing and disassembling the transformer assembly, it is necessary to first pull the pull button and keep the pull button in motion, and then move the transformer assembly. Since the transformer assembly has a certain weight, it is inconvenient for one person to operate alone, and it is often necessary for two people to cooperate in the operation. In addition, it is necessary to lift the transformer assembly to align the slide bar with the mounting groove. When the two are in contact, the installer's vision is poor, making it difficult to quickly align the two, so the installation is more laborious. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a box-type combined transformer to solve the technical problems in the existing technology that the box-type combined transformer is inconvenient to operate by one person and the installation is laborious when installing or disassembling the transformer.

[0005] In order to solve the above technical problems, the utility model provides a box-type combined transformer, comprising a base and a protective box provided on the top of the base, wherein the front end of the protective box is provided with a box door that can be opened or closed, and further comprising:

[0006] The transformer assembly includes a support base and a transformer body connected to the top of the support base;

[0007] The mounting assembly includes a guide rod, a mounting base, and a moving block. There are two guide rods, both of which are arranged in the protective box along the front-to-back direction and are spaced apart from each other. The mounting base is slidably connected to the protective box along the front-to-back direction and is located between the two guide rods. The support base is detachably connected to the top of the mounting base by a first fixing bolt. The transformer body is positioned inside or outside the protective box by sliding the mounting base. There are two moving blocks, one on the left and one on the right side of the mounting base. The two moving blocks are slidably connected to the two guide rods respectively.

[0008] The locking assembly includes a fixing plate and a second fixing bolt. The fixing plate is connected to the bottom end of the protective box. A threaded hole is provided on the side wall of the mounting seat. When the mounting seat slides into the protective box, the second fixing bolt passes through the fixing plate and is threadedly connected to the threaded hole.

[0009] After adopting the above structure, the box-type combined transformer of the utility model has the following advantages: when installing the transformer assembly, the second fixing bolt is rotated to separate it from the threaded hole, the mounting seat is pulled out of the protective box, and then the support seat is fixedly connected to the top of the mounting seat by the first fixing bolt, and then the mounting seat is pushed into the protective box so that the transformer body is located in the protective box, and the mounting seat is fixed to the fixing plate by the second fixing bolt to complete the installation of the transformer assembly; when disassembling the transformer assembly, the second fixing bolt is rotated to separate it from the threaded hole, the mounting seat is pulled out of the protective box, and then the first fixing bolt is rotated to separate the support seat from the mounting seat to complete the disassembly of the transformer assembly; whether it is installation or disassembly of the transformer assembly, it can be completed by only one person, and when installing the transformer assembly, it only needs to be placed on the top of the mounting seat. This step can be completed quickly, and the installer does not need to lift the transformer assembly for a long time, so it is more labor-saving.

[0010] As an improvement, the installation assembly also includes four fixing brackets connected to the bottom end of the protective box, and two fixing brackets are connected to both ends of each guide rod; using this structure, the guide rod is connected to the protective box through the fixing bracket, and the fixing bracket can also serve as a limit piece for the moving block to prevent the moving block from detaching from the guide rod.

[0011] As an improvement, the mounting assembly also includes several guide wheel rows, which are connected to the bottom end of the mounting seat and are rolled at the bottom end of the protective box. With this structure, the sliding friction between the mounting seat and the bottom end of the protective box is converted into rolling friction, making it easier to push or pull the mounting seat.

[0012] As an improvement, the locking assembly also includes a flat washer mounted on the second fixing bolt. When the second fixing bolt is threadedly connected to the threaded hole, the flat washer abuts between the head of the second fixing bolt and the fixing plate. With this structure, the flat washer increases the contact area between the head of the second fixing bolt and the fixing plate, disperses stress, and prevents deformation of the fixing plate.

[0013] As an improvement, there are two sets of locking components, which are respectively arranged on the left and right sides of the mounting base; with this structure, the mounting base is fixed from the left and right sides, thereby improving the stability of the connection between the mounting base and the protective box.

[0014] As an improvement, a positioning rod is provided at the top of the mounting seat, and a positioning hole for inserting the positioning rod is provided on the support seat; with this structure, the positioning rod and the positioning hole play a positioning role in the installation of the support seat, and since the positioning rod is located at the top of the mounting seat, the installer can directly see the position of the positioning rod and the positioning hole from top to bottom during installation, which facilitates the alignment of the positioning rod and the positioning hole.

[0015] As an improvement, a pad is removably connected to the front end of the base, and the height of the pad is the same as the height of the bottom end of the protective box. With this structure, when installing or removing the transformer assembly, the pad is connected to the front end of the base so that the pad can support the front end part of the mounting seat, preventing the center of gravity of the mounting seat from being located outside the base, causing damage to part of the structure of the mounting assembly.

[0016] As an improvement, a card slot is provided at the front end of the base which passes through the base vertically, and a card block is provided at the rear end of the pad. The card block can be removably inserted into the card slot, and the cross-sections of the card slot and the card block are both convex-shaped; with this structure, the convex-shaped card slot and card block can prevent the pad from moving with the mounting seat.

[0017] As an improvement, the top of the protection box is connected to a roof; with this structure, the roof protects the top of the protection box, thereby improving the protection.

[0018] As an improvement, a hand groove is provided at the front end of the mounting seat; with this structure, the mounting seat can be pushed and pulled through the hand groove, making the operation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the transformer body when it is located outside the protective box in the present invention.

[0020] Figure 2 for Figure 1 A partial enlarged view of part A in the middle.

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the transformer assembly and the installation assembly in the present invention.

[0022] Figure 4 It is a three-dimensional structural diagram of the installation component part in the utility model.

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the utility model.

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the pad in the utility model.

[0025] Figure numerals: 1. base; 2. protective box; 3. box door; 4. transformer body; 5. support base; 6. first fixing bolt; 7. fixing frame; 8. guide rod; 9. mounting base; 10. moving block; 11. guide wheel row; 12. fixing plate; 13. second fixing bolt; 14. flat washer; 15. threaded hole; 16. positioning rod; 17. chamfered part; 18. ceiling; 19. hand groove; 20. pad; 21. slot; 22. block. DETAILED DESCRIPTION

[0026] The box-type combined transformer of the utility model is described in detail below with reference to the accompanying drawings.

[0027] like Figures 1 to 6 As shown, a box-type combined transformer includes a base 1 and a protective box 2 arranged on the top of the base 1. The front end of the protective box 2 is provided with a box door 3 that can be opened or closed. The box door 3 is two doors hinged on the left and right sides of the front end of the protective box 2. Its specific structure is the existing technology and will not be repeated here.

[0028] The utility model also includes a transformer assembly, a mounting assembly and a locking assembly, wherein, as Figure 3 As shown, the transformer assembly includes a support base 5 and a transformer body 4 connected to the top of the support base 5; Figure 1 and Figure 3 As shown, the installation assembly includes a fixed frame 7, a guide rod 8, a mounting seat 9 and a moving block 10. There are two guide rods 8 and both are arranged in the protective box 2 along the front-to-back direction. The two guide rods 8 are distributed at intervals on the left and right. There are four fixed frames 7 in total and are connected to the bottom end of the inside of the protective box 2. Each guide rod 8 is connected to two fixed frames 7 at both ends. The mounting seat 9 is slidably connected to the protective box 2 along the front-to-back direction and is located between the two guide rods 8. The support seat 5 is detachably connected to the top of the mounting seat 9 by the first fixing bolt 6. The transformer body 4 is located inside or outside the protective box 2 by sliding the mounting seat 9. There are two moving blocks 10 and they are respectively arranged on the left and right sides of the mounting seat 9. The two moving blocks 10 are slidably connected to the two guide rods 8 respectively. Specifically, the moving block 10 is slidably sleeved on the guide rod 8.

[0029] In addition, if Figure 4 As shown, the mounting assembly further includes a plurality of guide wheel rows 11, which are connected to the bottom end of the mounting base 9. The guide wheel rows 11 are rotatably disposed at the bottom end of the interior of the protective box 2. Each guide wheel row 11 includes a plurality of guide wheels spaced apart along the front and rear sides, each guide wheel being rotatably connected to the bottom end of the mounting base 9. In this embodiment, there are a total of two rows of guide wheel rows 11, which are spaced apart from each other at the bottom end of the mounting base 9. The guide wheel rows 11 can convert the sliding friction between the mounting base 9 and the bottom end of the interior of the protective box 2 into rolling friction, making it easier to push or pull the mounting base 9.

[0030] like Figure 3 As shown, a positioning rod 16 is provided at the top of the mounting base 9, and a positioning hole for inserting the positioning rod 16 is provided on the support base 5. The positioning rod 16 and the positioning hole play a positioning role in the installation of the support base 5. Specifically, a plurality of through holes are provided on the support base 5 for the passage of the first fixing bolt 6, and a plurality of screw holes are provided at the top of the mounting base 9 for the threaded connection of the first fixing bolt 6. The relative positional relationship between the positioning rod 16 and each screw hole is determined, and the relative positional relationship between the positioning hole and each through hole is determined. After the positioning rod 16 is inserted into the positioning hole, the positions of each through hole and each screw hole are exactly corresponding. Even if they are not yet corresponding, the positions of the through holes and the screw holes can be made to correspond by moving the transformer assembly to deflect it, so that the first fixing bolt 6 can connect the support base 5 to the mounting base 9.

[0031] In addition, a chamfered portion 17 is provided at the top of the positioning rod 16 to facilitate insertion into the positioning hole, and the diameter of the positioning hole is also larger than the positioning rod 16. Since the positioning rod 16 is located at the top of the mounting base 9, the installer can directly see the position of the positioning rod 16 and the positioning hole from top to bottom during installation, making it easy to align the positioning rod 16 with the positioning hole. Even if accurate alignment is not possible, the transformer assembly can be lowered first, and the positioning rod 16 can then lift the transformer assembly. The positioning rod 16 can then be inserted into the positioning hole by moving the transformer assembly.

[0032] like Figure 1 As shown, the top of the protective box 2 is connected to a ceiling 18, which protects the top of the protective box 2 and improves the protection performance; a hand groove 19 is provided at the front end of the mounting seat 9, and the mounting seat 9 is pushed and pulled through the hand groove 19, which makes the operation more convenient.

[0033] like Figure 1 and Figure 2 As shown, the locking assembly includes a fixing plate 12, a second fixing bolt 13, and a flat washer 14 that is sleeved on the second fixing bolt 13. The fixing plate 12 is connected to the bottom end of the interior of the protective box 2 and is located near the front side. The side wall of the mounting seat 9 is provided with a threaded hole 15. When the mounting seat 9 slides into the protective box 2, the second fixing bolt 13 passes through the fixing plate 12 and is threadedly connected to the threaded hole 15. When the second fixing bolt 13 is threadedly connected to the threaded hole 15, the flat washer 14 abuts between the head of the second fixing bolt 13 and the fixing plate 12. The locking assembly is provided in two sets, one on the left and one on the right side of the mounting seat 9, respectively. Correspondingly, a threaded hole 15 is provided on each of the left and right side walls of the mounting seat 9.

[0034] When installing the transformer assembly, turn the second fixing bolt 13 to separate it from the threaded hole 15, pull the mounting base 9 out of the protective box 2, and then fix the support base 5 to the top of the mounting base 9 through the first fixing bolt 6, and then push the mounting base 9 into the protective box 2 so that the transformer body 4 is located inside the protective box 2, and fix the mounting base 9 to the fixing plate 12 through the second fixing bolt 13 to complete the installation of the transformer assembly; when disassembling the transformer assembly, turn the second fixing bolt 13 to separate it from the threaded hole 15, pull the mounting base 9 out of the protective box 2, and then turn the first fixing bolt 6 to separate the support base 5 from the mounting base 9 to complete the disassembly of the transformer assembly; whether it is installing or disassembling the transformer assembly, it can be completed by only one person, and when installing the transformer assembly, it only needs to be placed on the top of the mounting base 9. This step can be completed quickly, and the installer does not need to lift the transformer assembly for a long time, so it is more labor-saving. Although the transformer assembly needs to be moved out of the protective box 2 during installation and disassembly, the transformer assembly is always located in the protective box 2 under normal use, and the box door 3 is in a closed state, so it does not take up additional space. Although the space occupied by the protective box 2 is larger than the volume of the transformer assembly itself, there is space reserved around the transformer assembly itself, and the protective box 2 only utilizes this part of the reserved space without the need to set up additional space, and on this basis it provides good protection for the transformer assembly.

[0035] like Figure 1 As shown, when the transformer assembly is outside the protective box 2, its center of gravity falls outside the base 1, causing the installation component part to be subjected to a large torque. The installation component part is easily damaged under long-term force. Therefore, a pad 20 is detachably inserted at the front end of the base 1. The height of the pad 20 is the same as the height of the bottom end inside the protective box 2. When the transformer assembly needs to be installed or removed, the pad 20 is first connected to the front end of the base 1. In this way, the mounting seat 9 can be supported on the bottom end inside the protective box 2 and the pad 20 to prevent the installation component part from being subjected to a large torque.

[0036] In addition, if Figure 5 and Figure 6 As shown, the front end of the base 1 is provided with a card slot 21 which passes through the base 1 vertically, and the rear end of the pad 20 is provided with a card block 22. The card block 22 can be detachably inserted into the card slot 21. The cross-sections of the card slot 21 and the card block 22 are both convex-shaped, and the card block 22 is inserted into the card slot 21 from top to bottom.

[0037] The above describes the implementation mode of the present invention in detail with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned implementation mode. All other embodiments obtained by those skilled in the art without making any creative work shall fall within the scope of protection of the present invention.

Claims

1. A box-type combined transformer, comprising a base (1) and a protective box (2) arranged at the top of the base (1), wherein the front end of the protective box (2) is provided with a box door (3) that can be opened or closed, characterized in that: Also includes: A transformer assembly comprising a support base (5) and a transformer body (4) connected to the top of the support base (5); The mounting assembly comprises a guide rod (8), a mounting seat (9) and a moving block (10), wherein the guide rods (8) are two and are both arranged in the protection box (2) along the front-back direction and are spaced apart from each other on the left and right sides. The mounting seat (9) is slidably connected to the protection box (2) along the front-back direction and is located between the two guide rods (8). The support seat (5) is detachably connected to the top of the mounting seat (9) by a first fixing bolt (6). The transformer body (4) is located in the protection box (2) or outside the protection box (2) by sliding the mounting seat (9). The moving blocks (10) are two and are respectively arranged on the left and right sides of the mounting seat (9). The two moving blocks (10) are slidably connected to the two guide rods (8). A locking assembly comprises a fixing plate (12) and a second fixing bolt (13), wherein the fixing plate (12) is connected to the bottom end of the interior of the protective box (2), and a threaded hole (15) is provided on the side wall of the mounting seat (9). When the mounting seat (9) slides into the protective box (2), the second fixing bolt (13) passes through the fixing plate (12) and is threadedly connected to the threaded hole (15).

2. The box-type combined transformer according to claim 1, characterized in that: The mounting assembly further comprises four fixing frames (7) connected to the bottom end of the interior of the protection box (2), and each of the two ends of the guide rod (8) is respectively connected to two of the fixing frames (7).

3. The box-type combined transformer according to claim 1, characterized in that: The mounting assembly further comprises a plurality of guide wheel rows (11), wherein the plurality of guide wheel rows (11) are connected to the bottom end of the mounting seat (9), and the guide wheel rows (11) are rotatably arranged at the bottom end inside the protection box (2).

4. The box-type combined transformer according to claim 1, characterized in that: The locking assembly further comprises a flat washer (14) sleeved on the second fixing bolt (13); when the second fixing bolt (13) is threadedly connected to the threaded hole (15), the flat washer (14) abuts between the head of the second fixing bolt (13) and the fixing plate (12).

5. The box-type combined transformer according to claim 1 or 4, characterized in that: The locking components are in two groups and are respectively arranged on the left and right sides of the mounting seat (9).

6. The box-type combined transformer according to claim 1, characterized in that: A positioning rod (16) is provided at the top end of the mounting seat (9), and a positioning hole for inserting the positioning rod (16) is provided on the support seat (5).

7. The box-type combined transformer according to claim 1, characterized in that: A backing plate (20) is detachably plugged into the front end of the base (1), and the height of the backing plate (20) is the same as the height of the bottom end of the interior of the protection box (2).

8. The box-type combined transformer according to claim 7, characterized in that: The front end of the base (1) is provided with a card slot (21) which vertically penetrates the base (1), and the rear end of the pad (20) is provided with a card block (22). The card block (22) is detachably inserted into the card slot (21), and the cross sections of the card slot (21) and the card block (22) are both convex.

9. The box-type combined transformer according to claim 1, characterized in that: The top of the protection box (2) is connected to a roof (18).

10. The box-type combined transformer according to claim 1, characterized in that: The front end of the mounting seat (9) is provided with a hand groove (19).

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