Protective structure and tap switch

Abstract

The utility model provides a protection structure and a tap switch, and relates to the tap switch protection technology field, the protection structure comprises a tap switch, an insulating plate and a support plate, the surface of the insulating plate is plugged with a plurality of plugging columns, the top ends of the plugging columns extend to the upper part of the insulating plate and are internally embedded with rolling balls in a rotating manner, the side edge of the insulating plate is fixedly connected with an annular guide rail, and the annular guide rail is fixedly connected with the support plate. By arranging the balls higher than the upper surface of the insulating plate, the tap switch is hoisted to the balls on the surface of the insulating plate in a hoisting mode, and under the rolling connection and supporting effects of the balls, the tap switch is lifted to the balls on the surface of the insulating plate. The position of the tap switch is adjusted in a sliding manner under the condition that the bottom of the tap switch is effectively supported, and the safety in the position adjusting process is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of tap changer protection, and particularly relates to a protection structure and tap changer. BACKGROUND

[0002] The HMV1 series vacuum on-load tap changer is suitable for the three-phase Y connection neutral point voltage regulation of a power transformer or an industrial transformer with a rated voltage of 35-220kV, a rated current of 500A (three-phase connection) or 500A-1500A (single-phase connection), and a frequency of 50Hz-60Hz, is a buried combined on-load tap changer, is composed of a switching switch body, a switching switch oil chamber (referred to as an oil chamber) and a tap selector (with or without a polarity selector), and needs to ensure insulation in actual use in order to ensure electrical safety.

[0003] Therefore, a tap changer protection device with publication number CN220895364U is used when the tap lead is installed, the insulating plate is fixed on the low-voltage copper bar, the clamping groove of the tap changer is aligned with the position of the support plate and is inserted until the threading hole exposes the first side, at this time, the tap changer is fixed in the circumferential direction of the installation direction, that is, the tap changer cannot rotate after being inserted, the threading hole position on the upper part of the support plate is connected and fixed by using a cable tie or a binding wire, at this time, the position of the tap changer along the installation direction is fixed, that is, the tap changer cannot move along the installation direction, the tap changer cannot be separated from the insulating plate, and after the tap changer is installed, the high-voltage lead is connected to the connecting bolt.

[0004] However, because the support plate is vertically and fixedly connected with the insulating plate body, when the tap changer is installed, the tap changer needs to be kept in a suspended state, and the position of the tap changer needs to be continuously adjusted until the clamping groove is aligned with the support plate in the suspended state, and the tap changer is kept in the suspended state for a long time, which increases instability, and because there is no stable support point, the tap changer is easy to shake or shift during the adjustment process, which may cause inaccurate installation position and even affect the subsequent use effect, and keeping the tap changer in the suspended state for a long time may increase the risk of falling and damage. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the problems in the prior art and provides a protection structure and tap changer.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a protection structure and a tap switch, including tap switch, insulating plate and support board, the insulating plate surface is inserted with a plurality of insertion posts, the insertion post top end extends to the insulating plate above and inlay rotation installation has the ball, the insulating plate side fixedly connected with annular guide rail, the annular guide rail surface is connected with a plurality of support board number position one-to-one's sliding block, the sliding block side rotation is connected with the rotation board, the rotation board is L type setting and rotation board one side inlay insertion has the slide with the sliding block corresponding the support board rotation is connected on the slide.

[0007] Preferably, a plurality of the insertion post bottom edge fixedly connected with the lifting frame below the insulating plate, the insulating plate lower surface edge insertion has the wedge, the wedge towards the insulating plate bottom side position inclined surface setting and inclined surface is in the lifting frame bottom edge sliding connection.

[0008] Preferably, the insulating plate bottom surface and wedge insertion part are T-shaped setting and the electric push rod is fixedly connected between the insulating plate side and the wedge side.

[0009] Preferably, the annular guide rail bottom surface is inserted with a plurality of positioning pins in the circumferential direction, and a plurality of the positioning pin bottom end is also fixedly installed with the connecting ring below the insulating plate, and the connecting ring and the insulating plate bottom surface are connected through bolts.

[0010] Preferably, the positioning pin and the sliding block surface are inserted, and the rotation board surface is provided with a insertion hole for inserting the positioning pin.

[0011] Preferably, the slide and the rotation board side away from the insulating plate are also connected through bolts, and the spring hinge is installed at the junction of the slide and the support board, the slide is provided with a protrusion on the side of the support board away from the spring hinge, and the protrusion and the support board are also connected through bolts.

[0012] Preferably, the insulating plate bottom surface is fixedly connected with the anti-skid frame, and the insulating plate upper surface center is inlaid with an anti-skid strip.

[0013] Compared with the prior art, the utility model has the advantages and positive effects that,

[0014] 1、In the utility model, through setting the ball higher than the insulating plate upper surface, the tap switch is hoisted and transported to the ball on the insulating plate surface, under the rolling connection and supporting action of the ball, the tap switch is guaranteed to slide and adjust the position under the effective support of the bottom, and the safety in the adjustment process is guaranteed.

[0015] 2. The utility model discloses a slider is in the annular guide rail surface sliding, after the position of the tap switch is adjusted, through the slider is poked, makes the slider align the card slot position on the tap switch, and then utilizes the relative position of bolt fixed slider and annular guide rail, the position of slider is adjusted according to the fixed position of tap switch, namely the position of support board is adjusted. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A three-dimensional structure schematic diagram of protective structure and tap switch is provided for the utility model,

[0017] Figure 2 A three-dimensional structure schematic diagram of protective structure and tap switch is provided for the utility model Figure 1 The bottom structure schematic diagram of protective structure and tap switch is provided for the utility model,

[0018] Figure 3 A three-dimensional structure schematic diagram of protective structure and tap switch is provided for the utility model Figure 1 The bottom structure schematic diagram of protective structure and tap switch is provided for the utility model,

[0019] Figure 4 For Figure 2 The enlarged view of A in the utility model.

[0020] Legend: 1, tap switch, 2, insulating plate, 3, ball, 4, plug post, 5, rotating plate, 6, support board, 7, annular guide rail, 8, positioning pin, 9, antiskid frame, 10, electric push rod, 11, connecting ring, 12, slider, 13, slide, 14, wedge block, 15, lifting frame, 16, jack. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above purpose, features and advantages of the utility model, the utility model is further explained below in conjunction with the drawings and examples.It needs to be explained that the embodiment of the application and the features in the embodiment can be combined mutually in the case of not conflicting.

[0022] In the following description, a lot of specific details are set forth in order to fully understand the utility model, but the utility model can also be implemented in other ways different from the description, therefore, the utility model is not limited to the specific embodiment disclosed in the following disclosure.

[0023] As Figures 1-4As shown, a protective structure and tap changer include a tap changer 1, an insulating plate 2, and a support plate 6. An anti-slip bracket 9 is fixedly connected to the bottom surface of the insulating plate 2, and an anti-slip strip is embedded in the center of the upper surface of the insulating plate 2. The anti-slip bracket 9 prevents the insulating plate 2 from shaking when the tap changer 1 is moved. Additionally, the anti-slip bracket 9 allows the tap changer 1 to continuously descend until it contacts the anti-slip strip after it has moved to the center position on the insulating plate 2, preventing the tap changer 1 from sliding on the surface of the insulating plate 2. Several posts 4 are inserted into the surface of the insulating plate 2, with the top of each post 4 extending above the insulating plate 2 and incorporating a rotating ball bearing 3. A lifting frame 15 located below the insulating plate 2 is fixedly connected to the bottom edge of the posts 4. By fixing the relative position of the lifting frame 15 and the insulating plate 2, the ball bearing 3 is ensured to move smoothly during use. Figure 1 As shown, the ball bearing 3 is higher than the surface of the insulating plate 2. Therefore, the tap changer 1 can be directly lifted onto the ball bearing 3 on the surface of the insulating plate 2. Under the rolling connection and support of the ball bearing 3, the tap changer 1 can slide and adjust its position while being effectively supported at its bottom, ensuring safety during the adjustment process. In addition, a wedge 14 is inserted into the lower edge of the insulating plate 2. The wedge 14 is inclined on one side facing the bottom surface of the insulating plate 2 and is slidably connected to the bottom edge of the lifting frame 15. The insertion part between the bottom surface of the insulating plate 2 and the wedge 14 is T-shaped, and an electric push rod 10 is fixedly connected between the side of the insulating plate 2 and the side of the wedge 14. The extension and retraction of the electric push rod 10 keeps the wedge 14 in the same position. Figure 3 In the state shown, the inclined surface of the wedge 14 can effectively support the bottom edge of the lifting frame 15, thus fixing the relative position of the lifting frame 15 and the insulating plate 2. Conversely, when the electric push rod 10 retracts, it will drive the wedge 14 to move away from the central axis of the lifting frame 15, so that the lifting frame 15 can drive several plugs 4 and balls 3 to descend below the upper surface of the insulating plate 2. This ensures that after the tap changer 1 position is adjusted, the bottom edge of the tap changer 1 can directly contact the upper surface of the insulating plate 2.

[0024] The side of the insulation plate 2 is fixedly connected with a ring-shaped guide rail 7, the surface of the ring-shaped guide rail 7 is clamped with a plurality of sliders 12 corresponding to the number and position of the support plates 6, the side of the slider 12 is rotatably connected with a rotating plate 5, the bottom surface of the ring-shaped guide rail 7 is inserted with a plurality of positioning pins 8 in the circumferential direction, the bottom end of the plurality of positioning pins 8 is also fixedly installed with a connecting ring 11 located below the insulation plate 2, the connecting ring 11 is connected with the bottom surface of the insulation plate 2 through bolts, the positioning pin 8 is inserted with the surface of the slider 12, and the surface of the rotating plate 5 is provided with a hole 16 inserted with the positioning pin 8, the slider 12 is arranged in an arc shape and slides around the surface of the ring-shaped guide rail 7, so that after the position adjustment of the tap switch 1 is completed, the slider 12 is aligned with the clamping groove position on the tap switch 1 by pulling the slider 12, then the positioning pin 8 is inserted through the ring-shaped guide rail 7 and the slider 12 by using the connecting ring 11 to rise, and the relative position of the slider 12 and the ring-shaped guide rail 7 is fixed by using the bolts, so that the position of the slider 12 is fixed, and the hole 16 on the surface of the rotating plate 5 functions in that when the rotating plate 5 is rotated by one hundred and eighty degrees to be located above the insulation plate 2 and in a horizontal state, the bolts between the connecting ring 11 and the insulation plate 2 are continuously rotated, so that the connecting ring 11 drives the positioning pin 8 to continuously rise until the positioning pin 8 is inserted into the hole 16 on the rotating plate 5, and under the interference of the positioning pin 8, the rotating plate 5 can be prevented from rotating:

[0025] The rotating plate 5 is arranged in an L shape, and the sliding seat 13 is inserted into the length direction on one side of the rotating plate 5, the support plate 6 corresponding to the slider 12 is rotatably connected on the sliding seat 13, the sliding seat 13 is also connected with the side of the rotating plate 5 away from the insulation plate 2 through bolts, and the joint between the sliding seat 13 and the support plate 6 is provided with a spring hinge, the sliding seat 13 is provided with a protrusion on the side of the support plate 6 away from the spring hinge, and the protrusion is also connected with the support plate 6 through bolts, the rotating connection between the rotating plate 5 and the slider 12 enables the support plate 6 to move below the insulation plate 2 by rotating the rotating plate 5 when the tap switch 1 is hoisted, so as to ensure that there is no interference in the space above the insulation plate 2, and the tap switch 1 can be hoisted to the insulation plate 2, and the bolts between the sliding seat 13 and the support plate 6 can enable the support plate 6 to overcome the elastic force of the spring hinge and keep vertical to the sliding seat 13, and when the bolts between the sliding seat 13 and the support plate 6 are removed, the support plate 6 is forced to rotate to be parallel to the sliding seat 13 under the elastic force of the spring hinge, and the bolts between the sliding seat 13 and the rotating plate 5 are used to fix the relative position of the support plate 6 and the rotating plate 5 by connecting the side of the sliding seat 13 away from the slider 12 with the rotating plate 5 after the rotating plate 5 is rotated to be above the insulation plate 2 and the support plate 6 is inserted into the clamping groove on the tap switch 1.

[0026] The working principle is that the insulation plate 2 is kept as Figure 1In the shown state, the tap switch 1 is hoisted to the several balls 3 by a crane or corresponding device, the rotation of the balls 3 is used to realize the position sliding adjustment of the tap switch 1 on the insulating plate 2, after the tap switch 1 is adjusted to the center of the insulating plate 2, the electric push rod 10 is retracted to realize the wedge 14 far away from the lifting frame 15, then the lifting frame 15 is pressed on the ball 3 and the plug post 4 to descend under the weight of the tap switch 1, until the bottom of the tap switch 1 contacts the anti-skid strip surface on the upper surface of the insulating plate 2, then the connecting ring 11 is adjusted to realize the descending of the positioning pin 8 to be dislocated with the sliding block 12, then the sliding block 12 is slid on the surface of the annular guide rail 7 to the clamping groove of the tap switch 1, then the rotating plate 5 is rotated to the upper surface of the insulating plate 2, and is attached to the upper surface of the insulating plate 2, the connecting ring 11 is slid upward until the positioning pin 8 is inserted into the insertion hole 16 on the sliding block 12 and the rotating plate 5, then the sliding seat 13 is slid until the supporting plate 6 on the sliding seat 13 is clamped into the clamping groove on the tap switch 1, finally the relative positions of the several supporting plates 6 are fixed.

[0027] The wiring diagram of the tap switch 1 and the electric push rod 10 in the utility model belongs to the common knowledge in the field, the working principle is the known technology, the type is selected according to the actual use, so the control mode and wiring arrangement of the tap switch 1 and the electric push rod 10 are not explained in detail.

[0028] The above is only the preferred embodiment of the utility model, and is not other forms of the limitation of the utility model, any skilled person in the art can change or modify the above disclosed technology content into the equivalent embodiment of equivalent change applied to other fields, but any simple modification, equivalent change and modification made according to the technical essence of the utility model to the above embodiment still belongs to the protection scope of the utility model technical scheme.

Claims

1. A protection structure and a tap switch, comprising a tap switch (1), an insulating plate (2) and a support plate (6), characterized in that: a plurality of insertion columns (4) are inserted on the surface of the insulating plate (2), the top end of the insertion column (4) extends above the insulating plate (2) and the inner part of the insertion column (4) is rotatably installed with a ball (3); a ring-shaped guide rail (7) is fixedly connected to the side edge of the insulating plate (2), a plurality of sliding blocks (12) corresponding in number and position are clamped on the surface of the ring-shaped guide rail (7); a rotating plate (5) is rotatably connected to the side edge of the sliding block (12), the rotating plate (5) is L-shaped, a sliding seat (13) is inserted into the rotating plate (5) along the length direction on one side of the rotating plate (5), and the support plate (6) corresponding to the sliding block (12) is rotatably connected to the sliding seat (13).

2. The shield structure and distribution switch according to claim 1, characterized in that: A plurality of the insertion columns (4) are fixedly connected with a lifting frame (15) below the insulating plate (2), a wedge block (14) is inserted on the lower edge of the insulating plate (2), and the side of the wedge block (14) facing the bottom surface of the insulating plate (2) is provided with an inclined surface, and the inclined surface is slidably connected to the bottom edge of the lifting frame (15).

3. The shield structure and distribution switch of claim 2, wherein: The lower surface of the insulating plate (2) and the inserted part of the wedge block (14) are T-shaped, and an electric push rod (10) is fixedly connected between the side edge of the insulating plate (2) and the side edge of the wedge block (14).

4. The shield structure and distribution switch of claim 1, wherein: A plurality of positioning pins (8) are inserted on the bottom surface of the ring-shaped guide rail (7) along the circumferential direction, and a plurality of the positioning pins (8) are also fixedly installed with a connecting ring (11) below the insulating plate (2), and the connecting ring (11) is connected to the bottom surface of the insulating plate (2) by bolts.

5. The shield structure and distribution switch of claim 4, wherein: The positioning pins (8) are inserted on the surface of the sliding block (12), and the surface of the rotating plate (5) is provided with a plug hole (16) for inserting the positioning pins (8).

6. The shield structure and distribution switch of claim 1, wherein: The sliding seat (13) is also connected to the rotating plate (5) on the side away from the insulating plate (2) by bolts, a spring hinge is installed at the joint of the sliding seat (13) and the support plate (6), a protrusion is provided on the side of the sliding seat (13) away from the spring hinge, and the protrusion is also connected to the support plate (6) by bolts.

7. The shield structure and distribution switch of claim 1, wherein: An anti-skid frame (9) is fixedly connected to the bottom surface of the insulating plate (2), and an anti-skid strip is embedded in the center of the upper surface of the insulating plate (2).

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