A multi-level voltage transformer

Abstract

The present invention relates to the technical field of voltage transformers, and discloses a multi-level voltage transformer. The present invention comprises a voltage transformer, wherein the upper surface of the voltage transformer is provided with a voltage transformer cover, the upper surface of the voltage transformer cover is fixedly connected with a connecting column, the side surface of the connecting column is sleeved with an extension plate, the inner wall of the extension plate is fixedly connected with a supporting plate; the inner wall of the extension plate is embedded with a pressing plate, the present invention connects external wires with the connecting column of the voltage transformer, the pressing plate can be embedded into the interior of the extension plate, so that the card slot can embed the wires on the surface of the supporting plate into the interior of the card slot, the magnet can attract the extension plate to fix the pressing plate, the excess wire is wound on the surface of the roller rod, the pressing plate can drive the limiting plate to move downward together, so that the limiting plate can squeeze the wires wound on the surface of the roller rod, the arc plate can squeeze and limit the right side of the roller rod, and the wire is not easily separated from the connecting column of the voltage transformer due to the influence of falling when in use.

Description

Technical Field

[0001] The present invention relates to the technical field of voltage transformers, in particular to a multi-level voltage transformer. Background Art

[0002] Multi-level voltage transformers are similar to transformers and are instruments used to transform voltage. However, the purpose of transformers to transform voltage is to facilitate the transmission of electrical energy, so the capacity is very large, generally calculated in kilovolt-amperes or megavolt-amperes; while the purpose of voltage transformers to transform voltage is mainly to power measuring instruments and relay protection devices, to measure the voltage, power and electrical energy of the line, or to protect valuable equipment, motors and transformers in the line when a line fault occurs. Therefore, the capacity of voltage transformers is very small, generally only a few volt-amperes, tens of volt-amperes, and the maximum does not exceed one thousand volt-amperes. The entry introduces its basic structure, working principle, main types, wiring methods, precautions, abnormalities and handling, and ferromagnetic resonance. The basic structure of the voltage transformer is very similar to that of the transformer. It also has two windings, one called the primary winding and the other called the secondary winding. Both windings are installed or wound on the iron core. There is insulation between the two windings and between the windings and the iron core, so that there is electrical isolation between the two windings and between the windings and the iron core. When the voltage transformer is in operation, the primary winding N1 is connected in parallel to the line, and the secondary winding N2 is connected in parallel to the instrument or relay. Therefore, when measuring the voltage on the high-voltage line, although the primary voltage is very high, the secondary voltage is low, which can ensure the safety of the operator and the instrument. The multi-level voltage transformer is an indispensable electrical appliance in power transmission and power supply systems such as power plants and substations. The precision voltage transformer is an instrument used in electrical test laboratories to expand the measurement limit and measure voltage, power and electric energy. The voltage transformer is very similar to the transformer, both of which are used to transform the voltage on the line;

[0003] When a multi-level voltage transformer is in use, the length of the connecting wire is too long, causing the wire to fall and be easily placed, resulting in excessive tension at the connection between the wire and the voltage transformer, which is prone to breakage and affects the use of the voltage transformer. At the same time, when installing the multi-level voltage transformer, bolts are usually used to connect the multi-level voltage transformer, resulting in poor stability when the multi-level voltage transformer is installed and used, making it easy for the multi-level voltage transformer to loosen and fall from a height during use, causing damage. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides a multi-level voltage transformer, which connects external wires with the connecting column of the voltage transformer. After the wires are connected with the connecting column, the wires can be placed inside the support plate, and the handle can be held so that the plurality of pressing plates can be driven to move downward together through the connecting rod, so that the pressing plate can be embedded in the interior of the extension plate, and the pressing plate can be continuously moved to drive the card plate to move together, so that the card slot can embed the wires on the surface of the support plate into the interior of the card slot, and the card plate can be used to arrange and fix the wires, and the pressing plate can be continuously moved. The horizontal plate can drive the magnet to move. Since the extension plate is made of metal, the magnet can be attracted to the extension plate to fix the pressure plate. The excess is first wound on the surface of the roller rod, and the baffle is used to block the wires wound on the surface of the roller rod. When the pressure plate moves, the pressure plate can drive the limit plate to move downward together, so that the limit plate can squeeze the wires wound on the surface of the roller rod, and the arc plate can move to the right side of the roller rod. The elasticity of the first spring is used to make the arc plate squeeze and limit the right side of the roller rod, and the wire can extend from the inside of the arc plate through the opening for use. The utility model is used to prevent the electric wire from being easily separated from the connection column of the voltage transformer by falling when in use. When the voltage transformer is installed, the lower surface of the fitting seat can use the rubber block to fit the bracket at the installation location of the voltage transformer, so that the fitting seat can be extended into the interior of the fitting seat to press the second spring under the influence of extrusion. The elasticity of the second spring can be used to generate a pulling force between the fitting seat and the fitting seat, so that the fitting seat can press the bracket at the installation location of the voltage transformer, and the sliding of the moving rod and the mounting seat can be used to push the moving rod to move, so that the moving rod can be installed. The internal sliding of the seat allows the moving rod to push the extrusion seat to move, so that the extrusion seat can fit with the surface of the bracket at the voltage transformer installation location, and the sliding rod is pushed so that the sliding rod can drive the inclined plate to slide inside the limit block, so that when the inclined plate moves, the inclined plate can bend and push the rubber strip, so that the rubber strip and the inclined plate can pass through the interior of the installation seat together to fix the extrusion seat, making it convenient to install the voltage transformer, while improving the stability of the voltage transformer during installation, etc., solving the problems of the inconvenience of wire reeling due to the long length of the wire and the poor stability of the voltage transformer during installation.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: comprising a voltage transformer, wherein a voltage transformer cover is provided on the upper surface of the voltage transformer, a connecting column is fixedly connected to the upper surface of the voltage transformer cover, an extension plate is sleeved on the side surface of the connecting column, and a support plate is fixedly connected to the inner wall of the extension plate; a pressure plate is embedded and connected to the inner wall of the extension plate, the upper surface of the pressure plate is fixedly connected to the support plate, the front surface of the support plate is fixedly connected to the cross plate, a magnet is provided on the lower surface of the cross plate, and the magnet is attracted to the extension plate, the lower surface of the pressure plate is fixedly connected to a clamping plate, a clamping groove is provided on the lower surface of the clamping plate, the side surface of the extension plate is fixedly connected to a limiting plate, the lower surface of the limiting plate is fixedly connected to a first spring, and an end of the first spring away from the limiting plate is fixedly connected to an arc plate.

[0006] Preferably, a mounting seat is fixedly connected to the lower surface of the voltage transformer, and an engaging seat is fixedly connected to the inner top wall of the mounting seat.

[0007] Preferably, a second spring is fixedly connected inside the fitting seat, an end of the second spring away from the fitting seat is fixedly connected to the fitting seat, and the fitting seat is fitted and connected with the fitting seat, and a rubber block is provided on the lower surface of the fitting seat.

[0008] Preferably, a third spring is fixedly connected to the inner wall of the mounting seat, and an end of the third spring away from the mounting seat is fixedly connected to an extrusion seat.

[0009] Preferably, a moving rod is fixedly connected to the front surface of the extrusion seat, and one end of the moving rod away from the extrusion seat is fixedly connected to a limiting block.

[0010] Preferably, a sliding rod is slidably connected inside the limit block, and an end of the sliding rod away from the limit block is fixedly connected to an inclined plate.

[0011] Preferably, a fixing block is fixedly connected to the side surface of the limiting block, a rubber strip is provided on the side surface of the fixing block, and the rubber strip is fitted with the inclined plate, and the rubber strip is engaged with the mounting seat.

[0012] Preferably, a connecting rod is fixedly connected to the side surface of the pressing plate, and a handle is fixedly connected to the upper surface of the pressing plate.

[0013] Preferably, the front surface of the extension plate is movably connected to a movable rod via a bearing, one end of the movable rod away from the extension plate is fixedly connected to a baffle, and the front surface of the baffle is fixedly connected to a roller rod.

[0014] Preferably, an opening is provided on a side surface of the arc plate, the arc plate is located on the right side of the roller rod, and the limit plate is located above the roller rod.

[0015] Compared with the prior art, the present invention provides a multi-level voltage transformer, which has the following beneficial effects:

[0016] 1. The present invention connects external wires with the connecting column of the voltage transformer. When the wires are connected with the connecting column, the wires can be placed inside the support plate, and the handle can be held so that the plurality of pressing plates can be driven to move downward together through the connecting rod, so that the pressing plate can be embedded in the extension plate. The pressing plate can be continuously moved to drive the card plate to move together, so that the card slot can embed the wires on the surface of the support plate into the inside of the card slot. The card plate can be used to arrange and fix the wires. The pressing plate can be continuously moved to drive the magnet to move. Since the extension plate is made of metal, the magnet can be connected to the support plate. The extension plates attract each other to fix the pressure plate, and the excess is first wound on the surface of the roller rod, and the baffle is used to block the wires wound on the surface of the roller rod. When the pressure plate moves, the pressure plate can drive the limit plate to move downward together, so that the limit plate can squeeze the wires wound on the surface of the roller rod, and the arc plate can move to the right side of the roller rod, and the elasticity of the first spring can be used to squeeze and limit the right side of the roller rod, and the wire can be extended from the inside of the arc plate through the opening for use, so that the wire is not easily affected by falling and separated from the connecting column of the voltage transformer when in use.

[0017] 2. When the voltage transformer is installed, the lower surface of the fitting seat can use the rubber block to fit the bracket at the installation location of the voltage transformer, so that the fitting seat can be extended into the interior of the fitting seat under the influence of extrusion to squeeze the second spring, and the elasticity of the second spring can be used to generate a pulling force between the fitting seat and the fitting seat, so that the fitting seat can squeeze the bracket at the installation location of the voltage transformer, and the sliding of the moving rod and the mounting seat can be used to push the moving rod to move, so that the moving rod can slide inside the mounting seat, so that the moving rod can push the extrusion seat to move, so that the extrusion seat can fit the bracket surface at the installation location of the voltage transformer, and the sliding rod is pushed so that the sliding rod can drive the inclined plate to slide inside the limit block, so that when the inclined plate moves, the inclined plate can bend and push the rubber strip, so that the rubber strip and the inclined plate can pass through the interior of the mounting seat together to fix the extrusion seat, so that the voltage transformer is convenient to install and the stability of the voltage transformer during installation is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the split structure of the extension plate of the present invention;

[0020] Figure 3 for Figure 2 Schematic diagram of the structure at A in the middle;

[0021] Figure 4 This is a schematic diagram of the internal structure of the mounting base of the present invention from a side view;

[0022] Figure 5 for Figure 4 Schematic diagram of the structure at point B in the middle.

[0023] Among them: 1. voltage transformer; 2. extension plate; 3. connecting column; 4. voltage transformer cover; 5. mounting seat; 6. arc plate; 7. first spring; 8. limit plate; 9. pressure plate; 10. handle; 11. card plate; 12. support plate; 13. roller rod; 14. baffle; 15. movable rod; 16. card slot; 17. magnet; 18. support plate; 19. cross plate; 20. connecting rod; 21. embedded seat; 22. fitting seat; 23. second spring; 24. rubber block; 25. extrusion seat; 26. moving rod; 27. limit block; 28. third spring; 29. ​​inclined plate; 30. rubber strip; 31. slide rod; 32. fixed block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-5, including a voltage transformer 1, a voltage transformer cover 4 is provided on the upper surface of the voltage transformer 1, a connecting column 3 is fixedly connected to the upper surface of the voltage transformer cover 4, an extension plate 2 is sleeved on the side surface of the connecting column 3, a support plate 12 is fixedly connected to the inner wall of the extension plate 2, a pressing plate 9 is embedded and connected to the inner wall of the extension plate 2, a connecting rod 20 is fixedly connected to the side surface of the pressing plate 9, a handle 10 is fixedly connected to the upper surface of the pressing plate 9, a support plate 18 is fixedly connected to the upper surface of the pressing plate 9, a cross plate 19 is fixedly connected to the front surface of the support plate 18, a magnet 17 is provided on the lower surface of the cross plate 19, and the magnet 17 is attracted to the extension plate 2, and the lower surface of the pressing plate 9 is fixed A card plate 11 is fixedly connected, and a card slot 16 is provided on the lower surface of the card plate 11 to connect the external wires to the connecting column 3 of the voltage transformer 1. When the wires are connected to the connecting column 3, the wires can be placed inside the support plate 12, and the handle 10 can be held so that it can drive multiple pressing plates 9 to move downward together through the connecting rod 20, so that the pressing plate 9 can be embedded in the extension plate 2. By continuously moving the pressing plate 9, the pressing plate 9 can drive the card plate 11 to move together, so that the card slot 16 can embed the wires on the surface of the support plate 12 into the inside of the card slot 16, and the card plate 11 can be used to arrange and fix the wires, and by continuously moving the pressing plate 9, the cross plate 19 can be brought The moving magnet 17 moves. Since the extension plate 2 is made of metal, the magnet 17 can be attracted to the extension plate 2 to fix the pressure plate 9. The side surface of the extension plate 2 is fixedly connected to the limit plate 8. The lower surface of the limit plate 8 is fixedly connected to the first spring 7. The end of the first spring 7 away from the limit plate 8 is fixedly connected to the arc plate 6. The front surface of the extension plate 2 is movably connected to the movable rod 15 through a bearing. The end of the movable rod 15 away from the extension plate 2 is fixedly connected to the baffle 14. The front surface of the baffle 14 is fixedly connected to the roller rod 13. The side surface of the arc plate 6 is provided with an opening. The arc plate 6 is located on the right side of the roller rod 13, and the limit plate 8 is located above the roller rod 13. When the wires are connected to the connecting column 3 for use, the excess wires can be wound around the surface of the roller rod 13, and the baffle 14 can be used to block the wires wound around the surface of the roller rod 13. When the pressing plate 9 moves, the pressing plate 9 can drive the limiting plate 8 to move downward together, so that the limiting plate 8 can squeeze the wires wound around the surface of the roller rod 13, and the arc plate 6 can move to the right side of the roller rod 13. By utilizing the elasticity of the first spring 7, the arc plate 6 can squeeze and limit the right side of the roller rod 13, and the wires can extend from the inside of the arc plate 6 through the opening for use, so that the wires are not easily affected by falling and separated from the connecting column 3 of the voltage transformer 1 when in use.

[0026] The lower surface of the voltage transformer 1 is fixedly connected with a mounting seat 5, the inner top wall of the mounting seat 5 is fixedly connected with a fitting seat 21, the inside of the fitting seat 21 is fixedly connected with a second spring 23, the end of the second spring 23 away from the fitting seat 21 is fixedly connected with a fitting seat 22, and the fitting seat 22 is fitted and connected with the fitting seat 21, a rubber block 24 is provided on the lower surface of the fitting seat 22, the inner wall of the mounting seat 5 is fixedly connected with a third spring 28, the end of the third spring 28 away from the mounting seat 5 is fixedly connected with an extrusion seat 25, and the front surface of the extrusion seat 25 is fixedly connected with a displacement seat 24. The movable rod 26 is fixedly connected to the limit block 27 at one end of the movable rod 26 away from the extrusion seat 25, and the inner sliding connection of the limit block 27 is provided with a slide rod 31, and the end of the slide rod 31 away from the limit block 27 is fixedly connected to the inclined plate 29, and the side surface of the limit block 27 is fixedly connected to the fixed block 32, and the side surface of the fixed block 32 is provided with a rubber strip 30, and the rubber strip 30 is fitted with the inclined plate 29, and the rubber strip 30 is connected with the mounting seat 5. When the voltage transformer 1 is installed, the lower surface of the fitting seat 22 can use the rubber block 24 to support the voltage transformer 1 at the installation position. The mounting bracket 21 is fitted with the fitting seat 22, so that the fitting seat 22 can be extended into the inside of the fitting seat 21 under the influence of extrusion to squeeze the second spring 23. The elasticity of the second spring 23 can generate a pulling force between the fitting seat 22 and the fitting seat 21, so that the fitting seat 22 can squeeze the bracket at the installation location of the voltage transformer 1, and the sliding of the moving rod 26 and the mounting seat 5 can push the moving rod 26 to move, so that the moving rod 26 can slide inside the mounting seat 5, so that the moving rod 26 can push the extrusion seat 25 to move, so that the extrusion seat 25 can be installed with the bracket at the installation location of the voltage transformer 1 The surface fits, and the third spring 28 can be pulled when the extrusion seat 25 moves. When the extrusion seat 25 is fitted with the surface of the bracket at the installation location of the voltage transformer 1, the slide bar 31 is pushed so that the slide bar 31 can drive the inclined plate 29 to slide inside the limit block 27, so that when the inclined plate 29 moves, the inclined plate 29 can bend and push the rubber strip 30, so that the rubber strip 30 and the inclined plate 29 can pass through the interior of the mounting seat 5 together to fix the extrusion seat 25, so that the voltage transformer 1 is convenient to install, and at the same time, the stability of the voltage transformer 1 during installation is improved.

[0027] During use, when the voltage transformer 1 is installed, the lower surface of the fitting seat 22 can be fitted with the bracket at the installation location of the voltage transformer 1 by using the rubber block 24, so that the fitting seat 22 can be extended into the interior of the fitting seat 21 by the extrusion to squeeze the second spring 23, and the elasticity of the second spring 23 can be used to generate a pulling force between the fitting seat 22 and the fitting seat 21, so that the fitting seat 22 can squeeze the bracket at the installation location of the voltage transformer 1, and the sliding of the moving rod 26 and the mounting seat 5 can push the moving rod 26 to move, so that the moving rod 26 can slide inside the mounting seat 5 , so that the moving rod 26 can push the extrusion seat 25 to move, so that the extrusion seat 25 can fit with the surface of the bracket at the installation location of the voltage transformer 1. When the extrusion seat 25 moves, the third spring 28 can be pulled. After the extrusion seat 25 and the surface of the bracket at the installation location of the voltage transformer 1 are completely fitted, the sliding rod 31 is pushed so that the sliding rod 31 can drive the inclined plate 29 to slide inside the limit block 27. When the inclined plate 29 moves, the inclined plate 29 can bend and push the rubber strip 30, so that the rubber strip 30 and the inclined plate 29 can penetrate the interior of the mounting seat 5 together to fix the extrusion seat 25, so that it can The voltage transformer 1 is installed, and the external wires are connected to the connecting column 3 of the voltage transformer 1. When the wires are connected to the connecting column 3, the wires can be placed inside the support plate 12, and the handle 10 can be held so that the plurality of pressing plates 9 can be driven to move downward together through the connecting rod 20, so that the pressing plates 9 can be embedded in the extension plate 2. By continuously moving the pressing plates 9, the pressing plates 9 can drive the card plates 11 to move together, so that the card slots 16 can embed the wires on the surface of the support plate 12 into the inside of the card slots 16, and the card plates 11 can be used to arrange and fix the wires, so that the magnets 17 can be connected to the extension plate 2 attract each other to fix the pressing plate 9. When the electric wire is connected to the connecting column 3 for use, the excess wire can be wound on the surface of the roller rod 13, and the baffle 14 can be used to block the electric wire wound on the surface of the roller rod 13. When the pressing plate 9 moves, the pressing plate 9 can drive the limiting plate 8 to move downward together, so that the limiting plate 8 can squeeze the electric wire wound on the surface of the roller rod 13, and the arc plate 6 can move to the right side of the roller rod 13. By utilizing the elasticity of the first spring 7, the arc plate 6 can squeeze and limit the right side of the roller rod 13, and the electric wire can extend from the inside of the arc plate 6 through the opening for use.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-level voltage transformer, comprising a voltage transformer (1), characterized in that: The upper surface of the voltage transformer (1) is provided with a voltage transformer cover (4), the upper surface of the voltage transformer cover (4) is fixedly connected with a connecting column (3), the side surface of the connecting column (3) is sleeved with an extension plate (2), and the inner wall of the extension plate (2) is fixedly connected with a supporting plate (12); the inner wall of the extension plate (2) is embedded with a pressing plate (9), the upper surface of the pressing plate (9) is fixedly connected with a supporting plate (18), the front surface of the supporting plate (18) is fixedly connected with a transverse plate (19), the lower surface of the transverse plate (19) is provided with a magnet (17), and the magnet (17) and the extension plate (2) are attracted to each other, the lower surface of the pressing plate (9) is fixedly connected with a card plate (11), the lower surface of the card plate (11) is provided with a card slot (16), and the extension plate (2) is fixedly connected with a card plate (11). The side surface is fixedly connected to a limit plate (8), the lower surface of the limit plate (8) is fixedly connected to a first spring (7), and the end of the first spring (7) away from the limit plate (8) is fixedly connected to an arc plate (6); the side surface of the pressure plate (9) is fixedly connected to a connecting rod (20), and the upper surface of the pressure plate (9) is fixedly connected to a handle (10); the front surface of the extension plate (2) is movably connected to a movable rod (15) through a bearing, the end of the movable rod (15) away from the extension plate (2) is fixedly connected to a baffle (14), and the front surface of the baffle (14) is fixedly connected to a roller rod (13); the side surface of the arc plate (6) is provided with an opening, the arc plate (6) is located on the right side of the roller rod (13), and the limit plate (8) is located above the roller rod (13).

2. A multi-level voltage transformer according to claim 1, characterized in that: The lower surface of the voltage transformer (1) is fixedly connected to a mounting seat (5), and the inner top wall of the mounting seat (5) is fixedly connected to an engaging seat (21).

3. A multi-level voltage transformer according to claim 2, characterized in that: A second spring (23) is fixedly connected inside the fitting seat (21), and one end of the second spring (23) away from the fitting seat (21) is fixedly connected to the fitting seat (22), and the fitting seat (22) is fitted and connected to the fitting seat (21), and a rubber block (24) is provided on the lower surface of the fitting seat (22).

4. A multi-level voltage transformer according to claim 2, characterized in that: A third spring (28) is fixedly connected to the inner wall of the mounting seat (5), and an end of the third spring (28) away from the mounting seat (5) is fixedly connected to the extrusion seat (25).

5. A multi-level voltage transformer according to claim 4, characterized in that: A moving rod (26) is fixedly connected to the front surface of the extrusion seat (25), and one end of the moving rod (26) away from the extrusion seat (25) is fixedly connected to a limiting block (27).

6. A multi-level voltage transformer according to claim 5, characterized in that: The limit block (27) is internally slidably connected to a slide rod (31), and one end of the slide rod (31) away from the limit block (27) is fixedly connected to an inclined plate (29).

7. A multi-level voltage transformer according to claim 5, characterized in that: A fixing block (32) is fixedly connected to the side surface of the limit block (27), a rubber strip (30) is provided on the side surface of the fixing block (32), the rubber strip (30) is fitted with the inclined plate (29), and the rubber strip (30) is chime-connected with the mounting seat (5).

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