A distribution transformer for an electrical network

Abstract

The application relates to the field of transformers, in particular to a distribution transformer for power grids, which comprises a transformer body and a base fixedly installed at the lower end of the transformer body, the end of the base is embedded with a turnover shaft, the outer surface of the turnover shaft is rotationally installed with a frame seat, the upper end of the frame seat is embedded with a fixing frame, the outer surface of the fixing frame is slidingly installed with a fixing sleeve, the front end of the fixing sleeve extends with a connecting frame, the end of the connecting frame and the end of the fixing frame are fixedly installed with arc-shaped clamping seats, the two arc-shaped clamping seats are symmetrically arranged, the front end and the rear end of the arc-shaped clamping seat extend with angle clamping seats, and the rear end of the fixing sleeve is elastically installed with a fixing column. The application improves the installation efficiency, facilitates use, can flexibly adapt to the installation of square poles or round poles, meets the use requirement, and ensures that the transformer does not fall after installation.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of transformer, especially to a power distribution transformer for power grid. BACKGROUND

[0002] The intelligent transformer is a key equipment in the power grid, which is widely used in power transmission, power distribution and other aspects. The intelligent line voltage regulating transformer is a device for automatically regulating the voltage in the power line, which is equipped with an intelligent controller. The controller can collect the voltage signal of the line in real time, compare it with the set reference voltage, and when the collected voltage signal is greater than the reference voltage and the difference reaches a certain value after time delay, the controller sends a control command to drive the on-load tap changer to reduce the gear, thereby reducing the output voltage. Conversely, when the collected voltage signal is less than the reference voltage, the controller sends a control signal after time delay to drive the on-load tap changer to raise the gear and raise the output voltage, so as to realize the automatic regulation of the line voltage and stabilize it within the set range.

[0003] The existing transformer is usually installed on a power pole for use. During installation, an angle steel frame is first fixed on the power pole by bolts, and then the transformer is fixed on the angle steel frame by bolts to complete the installation. This process requires two-time fixing, and the transformer cannot be directly installed on the power pole, resulting in low installation efficiency and inconvenience in use. SUMMARY

[0004] The present application relates to the field of transformer, especially to a power distribution transformer for power grid.

[0005] To achieve the above purpose, the technical scheme adopted by the present application is as follows: a power distribution transformer for power grid, comprising a transformer body and a seat fixedly installed at the lower end of the transformer body, the end of the seat is embedded with a turnover shaft, the outer surface of the turnover shaft is rotatably installed with a frame seat, the upper end of the frame seat is embedded with a fixing frame, the outer surface of the fixing frame is slidably installed with a fixing sleeve, the front end of the fixing sleeve extends a connecting frame, the end of the connecting frame and the end of the fixing frame are both fixedly installed with an arc-shaped clamp seat, the two arc-shaped clamp seats are symmetrically arranged, the front and rear ends of the arc-shaped clamp seat both extend an angle clamp seat, the rear end of the fixing sleeve is elastically installed with a fixing column, the fixing column penetrates the rear end surface of the fixing frame, the two ends of the turnover shaft are both embedded with a knob, the ends of the two knobs are both installed with a top seat, the ends of the two top seats are both installed with a frame sleeve, the side surface of the arc-shaped clamp seat on the connecting frame extends an adaptive frame, the adaptive frame is slidably installed on the outer surface of the frame sleeve, and a synchronous piece is arranged between the adaptive frame and the frame sleeve.

[0006] Preferably, the outer surface of the fixed column is slidingly installed with a main shell, the upper and lower ends of the main shell are fixedly installed with main frames, the end portions of the main frames are fixed with the fixed sleeve, the rear end face of the fixed frame is provided with an adaptive slot, the adaptive slot is in a strip shape, and the fixed column is inserted into the inside of the adaptive slot.

[0007] Preferably, the outer surface of the fixed column is coaxially embedded with a main cap, the main cap is slidingly installed in the inside of the main shell, the outer side of the fixed column is wound with a main spring, one end of the main spring is fixed with the rear end of the main cap, the other end of the main spring is fixed with the rear end inside of the main shell, and the rear end of the fixed column is fixedly installed with a main bracelet.

[0008] Preferably, the lower end of the fixed frame is fixedly installed with an ear frame at the front edge, the lower end of the ear frame is elastically installed with an ear column, the end portion of the ear column is embedded with a positioning ear, and the positioning ear is on the side face of the front dialing ear.

[0009] Preferably, the lower end of the ear frame is hollowed out to form an accommodating cavity, the ear column passes through the inside of the accommodating cavity, the outer surface of the ear column is embedded with a push plate, the push plate is slidingly installed in the inside of the accommodating cavity, the outer side of the ear column is wound with a positioning spring, one end of the positioning spring is fixed with the push plate, and the other end of the positioning spring is fixed with the inner wall of the accommodating cavity.

[0010] Preferably, the synchronous part comprises a secondary shell installed at the upper end of the frame sleeve, the inside of the secondary shell is coaxially provided with an assembling column, the two ends of the assembling column are respectively penetrated out from the upper and lower ends of the secondary shell, the assembling column is slidingly matched with the secondary shell, and the lower end portion of the assembling column is sequentially penetrated into the upper end face of the frame sleeve and the upper end face of the adaptive frame.

[0011] Preferably, the upper end face of the adaptive frame is provided with an assembling slot near the edge, the lower end portion of the assembling column is inserted into the inside of the assembling slot, the outer surface of the assembling column is coaxially embedded with a secondary cap, the secondary cap is slidingly installed in the inside of the secondary shell, the outer side of the assembling column is wound with a secondary spring, one end of the secondary spring is fixed with the secondary cap, the other end of the secondary spring is fixed with the upper end inside of the secondary shell, and the upper end of the assembling column is fixedly installed with a secondary bracelet.

[0012] Preferably, the end portion of the dialing ear is embedded with a first connecting shaft, the top seat is rotationally installed on the outer surface of the first connecting shaft, the front and rear ends of the frame sleeve are extended with second connecting shafts, and the end portion of the top seat is rotationally installed on the outer surface of the second connecting shaft.

[0013] Compared with the prior art, the present application has the following beneficial effects:

[0014] 1. When the transformer body is hoisted to the installation position on the pole, the connecting frame can be manually moved. At this time, the fixing sleeve slides on the fixing frame, causing the arc-shaped clamps to move towards the pole. When the two arc-shaped clamps are on the pole, the fixing column moves to the adaptation groove. At this time, the fixing column is pushed into the adaptation groove under the action of the main spring to fix the moved arc-shaped clamps, so that the arc-shaped clamps can be attached to the pole to complete the installation of the transformer body. This process can directly install the transformer body onto the pole, effectively improving installation efficiency and facilitating use. At the same time, when installing the transformer body on a round pole, the arc-shaped clamps can be used to adapt to the curved surface of the round pole for tight installation. When installing the transformer body on a square pole, the corner clamps can be used to adapt to the right-angle side of the square pole for tight installation. This allows for flexible installation on both square and round poles to meet usage requirements.

[0015] 2. When the arc-shaped clamp moves toward the pole, the adapting frame slides within the frame sleeve to accommodate the movement of the arc-shaped clamp. When the arc-shaped clamp is on the pole, the assembly slot on the adapting frame is aligned with the assembly column. At this time, the assembly column is pushed into the assembly slot under the action of the secondary spring, making the adapting frame and the frame sleeve a whole. Then, the suspended transformer body is released. At this time, the flipping shaft will rotate under the weight of the transformer body, which will drive the lever to rotate, thereby pushing the top seat to press the arc-shaped clamp on the connecting frame toward the pole. At this time, the fixed column is displaced within the adapting slot to accommodate the movement of the arc-shaped clamp. Thus, under the pressure of the transformer body's weight, the arc-shaped clamp is firmly held onto the pole to ensure that the transformer body will not fall after installation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a power grid distribution transformer according to the present invention;

[0017] Figure 2 This is a schematic diagram of the arc-shaped clamp of a power grid distribution transformer according to the present invention;

[0018] Figure 3 This is an internal view of the lug of a power distribution transformer for power grids according to the present invention;

[0019] Figure 4 This is an internal view of the main casing of a power grid distribution transformer according to the present invention;

[0020] Figure 5 This is an internal view of the secondary housing of a power grid distribution transformer according to the present invention;

[0021] Figure 6 This is a schematic diagram of the top mount of a power grid distribution transformer according to the present invention;

[0022] Figure 7Figure 1 is a perspective view of a transformer body of a distribution transformer for power grid according to the present application;

[0023] Figure 8 Figure 2 is a perspective view of a transformer body of a distribution transformer for power grid according to the present application.

[0024] In the figure: 1, transformer body; 2, frame seat; 3, fixed frame; 4, arc-shaped clamping seat; 5, device seat; 6, corner clamping seat; 7, adaptive frame; 8, top seat; 9, push ear; 10, positioning ear; 11, ear frame; 12, turnover shaft; 13, secondary shell; 14, frame sleeve; 15, fixed sleeve; 16, connecting frame; 17, main shell; 18, adaptive groove; 19, main cap; 20, main spring; 21, fixed column; 22, main frame; 23, secondary frame; 24, secondary spring; 25, secondary cap; 26, assembly column; 27, assembly groove; 28, containing cavity; 29, push plate; 30, positioning spring; 31, ear column; 32, secondary bracelet; 33, main bracelet; 34, circular pole; 35, square pole; 36, first connecting shaft; 37, second connecting shaft. DETAILED DESCRIPTION

[0025] The following description is provided to enable any person skilled in the art to practice the application as claimed. The preferred embodiments disclosed herein are only examples of the application and variations can be made by one skilled in the art.

[0026] As Figures 1-8The utility model provides an electric network distribution transformer, including transformer body 1 and the base 5 of fixed installation in the lower extreme of transformer body 1, transformer body 1 selects intelligent line voltage regulating transformer, can adapt grid and use, the base 5 plays the role to the bearing of transformer body 1, the end of base 5 is inlayed and penetrates the turnover shaft 12, the outer surface rotation of turnover shaft 12 is installed with frame seat 2, the upper end of frame seat 2 is inlayed and penetrates the fixed frame 3, frame seat 2 plays the role of connecting fixed frame 3, the outer surface of fixed frame 3 is slidably installed with fixed sleeve 15, and fixed sleeve 15 plays the role of guiding arc clamp holder 4, and the front end of fixed sleeve 15 extends the connecting frame 16, and the connecting frame 16 plays the role of fixing arc clamp holder 4 on fixed sleeve 15, and the end of connecting frame 16 and the end of fixed frame 3 are all fixedly installed with arc clamp holder 4, and two arc clamp holders 4 are symmetrically arranged, and the front and rear ends of arc clamp holder 4 all extend angle clamp holder 6, when installing transformer body 1 on circular pole 34, can be through arc clamp holder 4 adapt the arc surface of circular pole 34 and install tightly, when installing transformer body 1 on square pole 35, can be through angle clamp holder 6 adapt the right angle edge of square pole 35 and install tightly, the rear end of fixed sleeve 15 is inlayed and penetrates the fixed column 21 of elastic installation, and fixed column 21 penetrates the rear end surface of fixed frame 3, and fixed column 21 can fix fixed sleeve 15, and make two arc clamp holders 4 keep the state of tightly holding on the pole, and both ends of turnover shaft 12 are inlayed with the lug 9 of prop, and the end of two lugs 9 is installed with the top seat 8, and the end of two top seats 8 is installed with the frame sleeve 14, and the turnover shaft 12 will rotate under the gravity of transformer body 1, and then drive lug 9 to rotate, to push top seat 8, to extrude arc clamp holder 4 on connecting frame 16 towards the pole, let arc clamp holder 4 tightly hold on the pole, and the side of arc clamp holder 4 on connecting frame 16 extends the adaptive frame 7, and the frame sleeve 14 is slidably installed on the outer surface of adaptive frame 7, when arc clamp holder 4 moves towards the pole, adaptive frame 7 will slide in frame sleeve 14, to adapt the movement of arc clamp holder 4, and synchronous piece is arranged between adaptive frame 7 and frame sleeve 14.

[0027] The outer surface of fixed column 21 is slidably installed with main shell 17, and main shell 17 plays the role of bearing fixed column 21, and the upper and lower ends of main shell 17 are all fixedly installed with main frame 22, and main frame 22 plays the role of fixing main shell 17, and the end of main frame 22 is fixed with fixed sleeve 15, and the rear end surface of fixed frame 3 is provided with adaptive slot 18, and adaptive slot 18 is strip-shaped, can let fixed column 21 be inserted in adaptive slot 18, and can also displace in adaptive slot 18, so that when turnover shaft 12 rotates to extrude arc clamp holder 4 towards the pole through top seat 8, fixed column 21 will not be hindered, and fixed column 21 is inserted in the inside of adaptive slot 18.

[0028] The outer surface of the fixed column 21 is coaxially embedded with a main cap 19, the main cap 19 is slidingly installed in the inside of the main shell 17, the outer side of the fixed column 21 is wound with a main spring 20, the main cap 19 is pushed by the main spring 20, one end of the main spring 20 is fixed with the rear end of the main cap 19, the other end of the main spring 20 is fixed with the rear end of the inside of the main shell 17, the main spring 20 pushes the fixed column 21 into the adaptive groove 18, the rear end of the fixed column 21 is fixedly installed with a main hand ring 33, the main hand ring 33 facilitates the pulling of the fixed column 21.

[0029] The lower end of the fixed frame 3 is fixedly installed with an ear frame 11, the lower end of the ear frame 11 is elastically installed with an ear column 31, the ear frame 11 bears the ear column 31, the end of the ear column 31 is embedded with a positioning ear 10, the positioning ear 10 is on the side of the front push ear 9, when the transformer body 1 is lifted, the positioning ear 10 is on the push ear 9, the frame seat 2 is limited, the arc-shaped clamp seat 4 can be in a vertical state during the suspension process, avoiding falling down, facilitating the subsequent pushing of the arc-shaped clamp seat 4, and making it tightly hold the electric pole.

[0030] The lower end of the ear frame 11 is hollowed out to form an accommodating cavity 28, the ear column 31 passes through the inside of the accommodating cavity 28, the outer surface of the ear column 31 is embedded with a push plate 29, the push plate 29 is slidingly installed in the inside of the accommodating cavity 28, the outer side of the ear column 31 is wound with a positioning spring 30, the accommodating cavity 28 bears the positioning spring 30 and the push plate 29, one end of the positioning spring 30 is fixed with the push plate 29, the other end of the positioning spring 30 is fixed with the inner wall of the accommodating cavity 28, when the turnover shaft 12 rotates under the gravity of the transformer body 1, the push ear 9 is driven to rotate, the positioning ear 10 moves under the pushing of the push ear 9, and the positioning spring 30 deforms, so that the positioning ear 10 can normally move, avoiding the positioning ear 10 hindering the rotation of the push ear 9.

[0031] The synchronous part includes a secondary shell 13 installed on the upper end of the frame sleeve 14, the inside of the secondary shell 13 is coaxially provided with an assembling column 26, the secondary shell 13 bears the assembling column 26, the two ends of the assembling column 26 pass through the upper and lower ends of the secondary shell 13, the assembling column 26 is slidingly matched with the secondary shell 13, the lower end of the assembling column 26 successively passes through the upper end surface of the frame sleeve 14 and the upper end surface of the adaptive frame 7, the assembling column 26 is slidingly matched with the frame sleeve 14, the assembling column 26 can make the frame sleeve 14 and the adaptive frame 7 form a whole, when the turnover shaft 12 rotates under the gravity of the transformer body 1, the push ear 9 is driven to rotate, the pushing force of the top seat 8 can be transmitted to the arc-shaped clamp seat 4 through the frame sleeve 14 and the adaptive frame 7.

[0032] The upper end face of the adapting frame 7 is provided with an assembling groove 27 near the edge, the lower end of the assembling column 26 is inserted into the interior of the assembling groove 27, the assembling groove 27 plays a role of cooperating with the assembling column 26, the outer surface of the assembling column 26 is coaxially inlaid with a secondary cap 25, the secondary cap 25 is slidingly installed in the interior of the secondary shell 13, the outer side of the assembling column 26 is wound with a secondary spring 24, the secondary cap 25 plays a role of being pushed by the secondary spring 24, one end of the secondary spring 24 is fixed with the secondary cap 25, the secondary spring 24 plays a role of pushing the assembling column 26 into the assembling groove 27, the other end of the secondary spring 24 is fixed with the upper end of the interior of the secondary shell 13, the upper end of the assembling column 26 is fixedly installed with a secondary bracelet 32, the secondary bracelet 32 plays a role of facilitating the pulling of the assembling column 26, the outer surface of the secondary shell 13 is symmetrically extended with two secondary frames 23, the end of the secondary frame 23 is fixed with the frame sleeve 14, the secondary frame 23 plays a role of fixing the secondary shell 13.

[0033] The end of the knob 9 is inlaid with a first connecting shaft 36, the top base 8 is rotatably installed on the outer surface of the first connecting shaft 36, the first connecting shaft 36 plays a role of connecting the knob 9 and the top base 8 together, the front and rear ends of the frame sleeve 14 are extended with a second connecting shaft 37, the end of the top base 8 is rotatably installed on the outer surface of the second connecting shaft 37, the second connecting shaft 37 plays a role of connecting the frame sleeve 14 and the top base 8 together.

[0034] When installing, the transformer body 1 can be lifted by lifting equipment, at this time the positioning lug 10 will be on the top of the push lug 9, so as to limit the frame seat 2, so that the arc-shaped clamp seat 4 can be in an upright state during the suspension process, avoiding downward turning, so as to facilitate subsequent pushing of the arc-shaped clamp seat 4, so that it is tightly held on the pole, when the transformer body 1 is lifted to the installation position of the pole, the connecting frame 16 can be manually pushed, at this time the fixed sleeve 15 slides on the fixed frame 3, so that the arc-shaped clamp seat 4 moves towards the pole, and the adaptive frame 7 slides in the frame sleeve 14 to adapt to the movement of the arc-shaped clamp seat 4, when the two arc-shaped clamp seats 4 are held on the pole, the assembly groove 27 on the adaptive frame 7 is aligned with the assembly column 26, and the fixed column 21 is moved to the adaptive groove 18, at this time the assembly column 26 is pushed into the assembly groove 27 under the action of the auxiliary spring 24, so that the adaptive frame 7 and the frame sleeve 14 form an integral whole, and the fixed column 21 is pushed into the adaptive groove 18 under the action of the main spring 20, so as to fix the moved arc-shaped clamp seat 4, so that the arc-shaped clamp seat 4 can be held on the pole to complete the installation of the transformer body 1, then the suspended transformer body 1 is loosened, at this time the turnover shaft 12 will rotate under the gravity of the transformer body 1, and then drive the push lug 9 to rotate, at this time the positioning lug 10 is moved under the top of the push lug 9, and the positioning spring 30 is deformed, so that the positioning lug 10 can move normally, so as to avoid the positioning lug 10 from hindering the rotation of the push lug 9, then the top seat 8 is pushed by the rotating push lug 9, so as to press the arc-shaped clamp seat 4 on the connecting frame 16 towards the pole, at this time the fixed column 21 is displaced in the adaptive groove 18 to adapt to the movement of the arc-shaped clamp seat 4, so that the arc-shaped clamp seat 4 is tightly held on the pole under the pressure of the gravity of the transformer body 1, so as to ensure that the installed transformer body 1 will not fall.

[0035] The basic principles, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A distribution transformer for power grids, comprising a transformer body (1) and a base (5) fixedly mounted at the lower end of the transformer body (1), characterized in that: The end of the base (5) is embedded with a turnover shaft (12), the outer surface of the turnover shaft (12) is rotatably installed with a frame seat (2), the upper end of the frame seat (2) is embedded with a fixing frame (3), the outer surface of the fixing frame (3) is slidably installed with a fixing sleeve (15), the front end of the fixing sleeve (15) extends with a connecting frame (16), the ends of the connecting frame (16) and the fixing frame (3) are fixedly installed with arc-shaped clamping seats (4), the two arc-shaped clamping seats (4) are symmetrically arranged, the front and rear ends of the arc-shaped clamping seat (4) extend with an angle clamping seat (6), the rear end of the fixing sleeve (15) is elastically installed with a fixing column (21), the fixing column (21) penetrates the rear end surface of the fixing frame (3), the two ends of the turnover shaft (12) are embedded with a pull ear (9), the ends of the two pull ears (9) are installed with a top seat (8), the ends of the two top seats (8) are installed with a frame sleeve (14), the side surface of the arc-shaped clamping seat (4) on the connecting frame (16) extends with an adaptive frame (7), the frame sleeve (14) is slidably installed on the outer surface of the adaptive frame (7), and the adaptive frame (7) and the frame sleeve (14) are provided with a synchronous part; The synchronous part comprises a secondary shell (13) installed on the upper end of the frame sleeve (14), a splicing column (26) is coaxially arranged in the secondary shell (13), the two ends of the splicing column (26) penetrate out from the upper and lower ends of the secondary shell (13) respectively, the splicing column (26) is in sliding fit with the secondary shell (13), and the lower end of the splicing column (26) penetrates the upper end surface of the frame sleeve (14) and the upper end surface of the adaptive frame (7) in sequence. The upper end surface of the adaptive frame (7) is provided with a splicing groove (27) near the edge, the lower end of the splicing column (26) is inserted into the splicing groove (27), a secondary cap (25) is coaxially embedded on the outer surface of the splicing column (26), the secondary cap (25) is slidably installed in the secondary shell (13), a secondary spring (24) is wound on the outer side of the splicing column (26), one end of the secondary spring (24) is fixedly connected with the secondary cap (25), the other end of the secondary spring (24) is fixedly connected with the inner upper end of the secondary shell (13), a secondary bracelet (32) is fixedly installed on the upper end of the splicing column (26), and the outer surface of the secondary shell (13) symmetrically extends two secondary frames (23).

2. A distribution transformer for use in an electrical network according to claim 1, characterized in that: The outer surface of the fixing column (21) is slidably installed with a primary shell (17), the upper and lower ends of the primary shell (17) are fixedly installed with a primary frame (22), the ends of the primary frame (22) are fixedly connected with the fixing sleeve (15), the rear end surface of the fixing frame (3) is provided with an adaptive groove (18), the adaptive groove (18) is in the form of a long strip, and the fixing column (21) is inserted into the adaptive groove (18).

3. A distribution transformer for use in an electrical network according to claim 2, characterised in that: The outer surface of the fixed column (21) is coaxially inlaid with a main cap (19), the main cap (19) is slidingly installed in the inside of the main shell (17), the outer side of the fixed column (21) is wound with a main spring (20), one end of the main spring (20) is fixed with the rear end of the main cap (19), the other end of the main spring (20) is fixed with the rear end of the inside of the main shell (17), the rear end of the fixed column (21) is fixedly installed with a main hand ring (33).

4. A distribution transformer for use in an electrical grid according to claim 1, characterized in that: The lower end of the fixed frame (3) is fixedly installed with an ear frame (11), the lower end of the ear frame (11) is elastically installed with an ear column (31), the end of the ear column (31) is inlaid with a positioning ear (10), the positioning ear (10) is on the side of the front pull ear (9).

5. A distribution transformer for use in an electrical network according to claim 4, characterised in that: The lower end of the ear frame (11) is hollowed out to form an accommodating cavity (28), the ear column (31) passes through the inside of the accommodating cavity (28), the outer surface of the ear column (31) is inlaid with a push plate (29), the push plate (29) is slidingly installed in the inside of the accommodating cavity (28), the outer side of the ear column (31) is wound with a positioning spring (30), one end of the positioning spring (30) is fixed with the push plate (29), the other end of the positioning spring (30) is fixed with the inner wall of the accommodating cavity (28).

6. A distribution transformer for use in an electrical grid according to claim 1, characterized in that: The end of the pull ear (9) is inlaid with a first connecting shaft (36), the top seat (8) is rotatably installed on the outer surface of the first connecting shaft (36), the front and rear ends of the frame sleeve (14) are extended with a second connecting shaft (37), the end of the top seat (8) is rotatably installed on the outer surface of the second connecting shaft (37).

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