Combined mutual inductor

Abstract

The utility model discloses a combined type mutual inductor which comprises an upper top plate and a lower base, a wiring terminal is fixedly installed on the upper top plate, a hanging ring is fixedly installed on the edge of the upper top plate, a shell mechanism is arranged between the upper top plate and the lower base, and the shell mechanism comprises an equipment support fixed between the upper top plate and the lower base. Mounting grooves are formed in the edges of the upper end and the lower end of the equipment support, mounting through holes are formed in the mounting grooves, a sealing shell is movably mounted on the equipment support, an access hole is formed in the sealing shell, an access cabinet door is movably mounted at the access hole, and a sealing mechanism is mounted on the equipment support. According to the combined type mutual inductor, after the hollow sealing gasket is contracted, the sealing shell can be loosened, so that the sealing shell is rotated, the access hole can face different assemblies in the sealing shell, all the assemblies are exposed in the sight of a maintenance worker, and maintenance is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of mutual inductors, in particular to a combined mutual inductor. Background Art

[0002] Current and voltage transformers are very important equipment in the power system. Voltage transformers are mainly used to convert the voltage of the line, while current transformers are mainly used to convert the voltage and current of the line. In addition to converting the current and voltage of different sizes on the line into current and voltage of a certain size that is easy to measure, current and voltage transformers can also play a role in isolation protection to ensure the safety of operators and secondary related equipment. Combination transformers are transformers that combine voltage transformers and current transformers. The shell of the combined transformer is mostly a rectangular shell with a cabinet door. When the internal part of the combined transformer needs to be repaired, the cabinet door is opened to repair the internal components of the shell. However, opening the cabinet door only exposes some components inside the combined transformer to the sight of the maintenance staff, but not all components inside the combined transformer can be exposed to the sight of the maintenance staff, which is inconvenient for maintenance. Utility Model Content

[0003] The main purpose of the utility model is to provide a combined mutual inductor, which can effectively solve the problems mentioned in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A combined mutual inductor comprises an upper top plate and a lower base, wherein a wiring terminal is fixedly mounted on the upper top plate, a lifting ring is fixedly mounted at the edge of the upper top plate, a shell mechanism is arranged between the upper top plate and the lower base, the shell mechanism comprises an equipment bracket fixed between the upper top plate and the lower base, mounting grooves are arranged at the upper and lower ends of the equipment bracket, a mounting through hole is arranged in the mounting groove, a sealing shell is movably mounted on the equipment bracket, an inspection port is arranged on the sealing shell, an inspection cabinet door is movably mounted at the inspection port, a sealing mechanism is arranged on the equipment bracket, the sealing mechanism comprises a hollow sealing gasket fixedly mounted in the mounting groove, a cylinder body is connected to the hollow sealing gasket, an air hole is arranged on the cylinder body, a positioning seat is fixedly mounted in the middle position of the cylinder body, a servo electric push rod is fixedly mounted on the upper and lower surfaces of the positioning seat, and a piston is fixedly mounted on the output end of the servo electric push rod.

[0006] Furthermore, the inspection cabinet door is provided with a hinge, and the inspection cabinet door is movably installed in the inspection opening on the sealed shell through the hinge.

[0007] Furthermore, bolts are provided at both ends of the equipment bracket, the upper top plate is fixed to the upper end of the equipment bracket by bolts, the lower base is fixed to the lower end of the equipment bracket by bolts, and the hollow sealing gasket is installed on the equipment bracket through a mounting groove.

[0008] Furthermore, the communicating pipe extends into the mounting groove through the mounting through hole, one end of the communicating pipe is in communication with the hollow sealing gasket, and the other end of the communicating pipe is in communication with the cylinder body.

[0009] Furthermore, the servo electric push rod is installed in the cylinder body through a positioning seat, and the piston is movably installed in the cylinder body through the servo electric push rod.

[0010] Furthermore, a docking groove is provided on the upper top plate, and the lifting ring is installed on the upper top plate through the docking groove.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The user can open the inspection cabinet door to inspect the components in the sealed shell. During the inspection, the servo electric push rod can be controlled to retract. After the servo electric push rod is retracted, it will drive the piston close to the positioning seat, thereby sucking out the gas in the hollow sealing gasket and shrinking the hollow sealing gasket. After the hollow sealing gasket shrinks, the sealed shell will loosen, thereby rotating the sealed shell so that the inspection port can face the different components in the sealed shell, exposing all the components to the sight of the maintenance staff for easy maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a partial structural schematic diagram of the utility model;

[0015] Figure 3 It is a schematic diagram of the housing structure of the utility model;

[0016] Figure 4 It is a schematic diagram of the sealing mechanism of the utility model.

[0017] In the figure: 1. Terminal block; 2. Lifting ring; 3. Upper top plate; 4. Lower base; 5. Shell mechanism; 501. Sealed shell; 502. Inspection cabinet door; 503. Inspection port; 504. Equipment bracket; 505. Mounting groove; 506. Mounting through hole; 6. Sealing mechanism; 601. Hollow sealing gasket; 602. Cylinder body; 603. Air hole; 604. Connecting pipe; 605. Positioning seat; 606. Servo electric push rod; 607. Piston. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] like Figure 1 As shown, a combined mutual inductor comprises an upper top plate 3 and a lower base 4, a terminal block 1 is fixedly mounted on the upper top plate 3, a lifting ring 2 is fixedly mounted at the edge of the upper top plate 3, a shell mechanism 5 is provided between the upper top plate 3 and the lower base 4, and a sealing mechanism 6 is installed on the equipment bracket 504. Through the coordinated use of the shell mechanism 5 and the sealing mechanism 6, the inspection port 503 can be directed to different components in the sealed shell 501, so that all the components are exposed to the sight of the maintenance personnel, which is convenient for maintenance.

[0020] like Figure 2 , Figure 3 As shown, the shell mechanism 5 includes an equipment bracket 504 fixed between the upper top plate 3 and the lower base 4, and installation grooves 505 are provided at the upper and lower edges of the equipment bracket 504, and installation through holes 506 are provided in the installation grooves 505. A sealed shell 501 is movably installed on the equipment bracket 504, and an inspection port 503 is provided on the sealed shell 501. An inspection cabinet door 502 is movably installed at the inspection port 503, and a hinge is provided on the inspection cabinet door 502. The inspection cabinet door 502 is movably installed in the inspection port 503 on the sealed shell 501 through the hinge. Bolts are provided at both upper and lower ends of the equipment bracket 504, the upper top plate 3 is fixed to the upper end of the equipment bracket 504 by bolts, the lower base 4 is fixed to the lower end of the equipment bracket 504 by bolts, and the hollow sealing gasket 601 is installed on the equipment bracket 504 through the installation groove 505.

[0021] Specifically, after opening the inspection cabinet door 502, some components can be exposed to the sight of the maintenance staff, so that the staff can inspect and repair some components. At the same time, the sealed shell 501 can be rotated so that the inspection port 503 can be directed to different components in the sealed shell 501, so that all components are exposed to the sight of the maintenance staff, which is convenient for repairing all components.

[0022] like Figure 2 , Figure 4As shown, the sealing mechanism 6 includes a hollow sealing gasket 601 fixedly installed in the installation groove 505, the hollow sealing gasket 601 is connected to a cylinder body 602, the cylinder body 602 is provided with an air hole 603, a positioning seat 605 is fixedly installed in the middle position of the cylinder body 602, a servo electric push rod 606 is fixedly installed on the upper and lower surfaces of the positioning seat 605, a piston 607 is fixedly installed on the output end of the servo electric push rod 606, a connecting pipe 604 extends into the installation groove 505 through the installation through hole 506, one end of the connecting pipe 604 is connected to the hollow sealing gasket 601, and the other end of the connecting pipe 604 is connected to the cylinder body 602, the servo electric push rod 606 is installed in the cylinder body 602 through the positioning seat 605, and the piston 607 is movably installed in the cylinder body 602 through the servo electric push rod 606.

[0023] Specifically, after the servo electric push rod 606 is extended, it will drive the piston 607 to move forward, thereby squeezing the gas in the cylinder body 602 into the hollow sealing gasket 601, causing the hollow sealing gasket 601 to expand, and the expanded hollow sealing gasket 601 will block the gap between the sealing shell 501 and the equipment bracket 504, thereby playing a sealing role, and after the servo electric push rod 606 is retracted, it will drive the piston 607 to approach the positioning seat 605, thereby sucking out the gas in the hollow sealing gasket 601, causing the hollow sealing gasket 601 to shrink. After the hollow sealing gasket 601 shrinks, the sealing shell 501 will loosen, allowing the sealing shell 501 to rotate.

[0024] It should be noted that the utility model is a combined mutual inductor. When it is actually used, the maintenance cabinet door 502 is first opened for maintenance, and then the servo electric push rod 606 is controlled to retract. After the servo electric push rod 606 is retracted, it will drive the piston 607 to approach the positioning seat 605, thereby sucking out the gas in the hollow sealing gasket 601, causing the hollow sealing gasket 601 to shrink. After the hollow sealing gasket 601 shrinks, the sealing shell 501 will loosen. After the sealing shell 501 is loosened, the sealing shell 501 can be rotated so that the inspection port 503 is facing the damaged components in the sealing shell 501, so that the damaged components are all exposed to the sight of the maintenance staff, which is convenient for repairing all components.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A combined mutual inductor, comprising an upper top plate (3) and a lower base (4), characterized in that: A connection terminal (1) is fixedly mounted on the upper top plate (3); a lifting ring (2) is fixedly mounted on the edge of the upper top plate (3); a housing mechanism (5) is provided between the upper top plate (3) and the lower base (4); the housing mechanism (5) comprises an equipment support (504) fixed between the upper top plate (3) and the lower base (4); mounting grooves (505) are provided at the upper and lower edges of the equipment support (504); a mounting through hole (506) is provided in the mounting groove (505); a sealing housing (501) is movably mounted on the equipment support (504); and an inspection port (503) is provided on the sealing housing (501). An inspection cabinet door (502) is movably installed at the inspection port (503), and a sealing mechanism (6) is installed on the equipment bracket (504). The sealing mechanism (6) includes a hollow sealing gasket (601) fixedly installed in the installation groove (505). The hollow sealing gasket (601) is connected to a cylinder body (602), and an air hole (603) is opened on the cylinder body (602). A positioning seat (605) is fixedly installed in the middle position of the cylinder body (602), and a servo electric push rod (606) is fixedly installed on the upper and lower surfaces of the positioning seat (605), and a piston (607) is fixedly installed at the output end of the servo electric push rod (606).

2. A combined mutual inductor according to claim 1, characterized in that: The inspection cabinet door (502) is provided with a hinge, and the inspection cabinet door (502) is movably installed in the inspection opening (503) on the sealed shell (501) through the hinge.

3. A combined mutual inductor according to claim 2, characterized in that: Bolts are provided at both the upper and lower ends of the equipment support (504); the upper top plate (3) is fixed to the upper end of the equipment support (504) by bolts; the lower base (4) is fixed to the lower end of the equipment support (504) by bolts; and the hollow sealing gasket (601) is installed on the equipment support (504) through the installation groove (505).

4. A combined mutual inductor according to claim 3, characterized in that: A connecting pipe (604) is connected to the mounting through hole (506) on the mounting groove (505); one end of the connecting pipe (604) is connected to the hollow sealing gasket (601); and the other end of the connecting pipe (604) is connected to the cylinder body (602).

5. A combined mutual inductor according to claim 4, characterized in that: The servo electric push rod (606) is installed in the cylinder body (602) through the positioning seat (605), and the piston (607) is movably installed in the cylinder body (602) through the servo electric push rod (606).

6. A combined mutual inductor according to claim 5, characterized in that: The upper top plate (3) is provided with a docking groove, and the lifting ring (2) is installed on the upper top plate (3) through the docking groove.

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