An air inflation cabinet sleeve

Abstract

The application relates to an air-filled cabinet sleeve. The air-filled cabinet sleeve comprises an insulating sleeve, the surface of the insulating sleeve is sleeved with a mounting sleeve, the mounting sleeve is mounted on a transformer box cover, a hole is formed in the surface of the transformer box cover, a side surface of the mounting sleeve is provided with a mounting groove, a clamping assembly and a trigger piece are mounted in the mounting groove, the clamping assembly comprises multiple clamping plates, the multiple clamping plates are all slidingly connected to the inner wall of the mounting groove, and the trigger piece is rotated to drive the multiple clamping plates to slide along the inner wall of the mounting groove. The air-filled cabinet sleeve is provided with a hole on the transformer box cover, and the air-filled cabinet sleeve is mounted on the hole to lead out low-voltage and small-current outgoing lines in the transformer, so that the problem of excessive performance margin of common transformer sleeves due to small voltage and current of power transmission and transformation equipment is solved, and the application does not need to be used in cooperation with bolts or screws during installation, so that the overall connection is more convenient.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of transformers, and particularly relates to an air-filled cabinet bushing. BACKGROUND

[0002] The transformer bushing is the main insulation device outside the transformer box. The lead-out wires of the transformer winding must pass through the insulation bushing to insulate the lead-out wires and the transformer shell, and to fix the lead-out wires. Due to different voltage levels, the insulation bushing has pure porcelain bushing, oil-filled bushing and capacitor bushing.

[0003] However, the existing transformer bushing has excessive performance margin when the voltage and current of the power transmission and transformation equipment are small. The design of the bushing with excessive margin increases the manufacturing cost of the transformer bushing. Although this can improve the reliability of the bushing, it is usually not cost-effective, and the excessive margin may not fully play the role of the bushing, thereby causing unnecessary waste of resources. SUMMARY

[0004] The purpose of the present application is to provide an air-filled cabinet bushing with simple structure and reasonable design to solve the above problems.

[0005] The application achieves the above-mentioned purpose through the following technical solutions:

[0006] An air-filled cabinet bushing comprises an insulation sleeve, the surface of the insulation sleeve is provided with a mounting sleeve, the mounting sleeve is mounted on the transformer box cover, the surface of the transformer box cover is provided with a hole, the side surface of the mounting sleeve is provided with a mounting groove, the mounting groove is provided with a clamping assembly and a trigger piece, the clamping assembly comprises a plurality of clamping plates, the plurality of clamping plates are slidingly connected to the inner wall of the mounting groove, the trigger piece drives the plurality of clamping plates to slide along the inner wall of the mounting groove by rotating, the surface of the mounting sleeve is fixedly provided with a fixing ring, the fixing ring is provided with a pressing assembly and a locking assembly, the pressing assembly comprises a plurality of pressing plates, the locking assembly is used for fixing the pressing plates, the pressing plates and the clamping plates are respectively arranged on the two side surfaces of the transformer box cover corresponding to each other, and the two cooperate to fix the mounting sleeve in the hole of the transformer box cover.

[0007] As a further optimization scheme of the present application, the clamping assembly further comprises a circular ring, the circular ring is rotationally connected to the inner wall of the mounting groove, the surface of the circular ring is provided with an arc-shaped sliding groove corresponding to the plurality of clamping plates, the two sides of each clamping plate corresponding to each other are fixedly connected with a sliding block one and a sliding block two, the sliding block one slides along the arc-shaped sliding groove, the inner wall of the mounting groove is provided with a limiting sliding groove, the sliding block two slides along the limiting sliding groove, and the circular ring is fixedly connected with the trigger piece.

[0008] As a further optimization scheme of the present application, the trigger piece comprises a sliding button, a compression spring and a connecting plate, the sliding button slides along the inner wall of the mounting groove and extends out of the mounting groove, the connecting plate is fixedly connected with the surface of the sliding button and the surface of the circular ring respectively on the two corresponding side surfaces, and the compression spring is arranged on one side in the sliding direction of the sliding button, and the two ends of the compression spring are connected with the inner wall of the mounting groove and the surface of the sliding button respectively.

[0009] As a further optimization scheme of the present application, the pressing assembly further comprises a pressing column and a trigger plate corresponding to the plurality of pressing plates, the pressing column penetrates through the fixed ring sleeve, the pressing plate is connected to one end of the pressing column close to the transformer tank cover, the trigger plate is connected to the other end of the pressing column away from the transformer tank cover, and the locking assembly is mounted on the surface of the pressing column.

[0010] As a further optimization scheme of the present application, the locking assembly comprises a plurality of clamping blocks and a plurality of matching blocks, the plurality of clamping blocks are connected to the surface of the pressing column, the matching block is connected to the inner wall of the fixed ring sleeve, the plurality of clamping blocks and the plurality of matching blocks are arranged in straight lines and are arranged in an intersecting manner, and the surface of the clamping block close to the pressing plate and the surface of the matching block close to the trigger plate are both inclined surfaces.

[0011] As a further optimization scheme of the present application, the inner wall of the fixed ring sleeve is slidably connected with a pressing block, the surface of the pressing block is connected with a tension spring, and one end of the tension spring is connected to the inner wall of the fixed ring sleeve.

[0012] As a further optimization scheme of the present application, the surface of the pressing plate close to the transformer tank cover is fixedly connected with an elastic piece.

[0013] As a further optimization scheme of the present application, the elastic piece is a rubber pad.

[0014] The present application has the advantages that the present application is provided with a hole on the transformer tank cover, and the gas-filled cabinet bushing of the present application is installed on the hole to lead out the low-voltage and small-current outgoing line in the transformer, thereby solving the problem of excessive performance margin of ordinary transformer bushings due to small voltage and current of power transmission and transformation equipment, and the present application does not need to be used in cooperation with bolts or screws during installation, so that the overall connection is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present application;

[0016] Figure 2 is a schematic diagram of the internal structure of the mounting sleeve of the present application;

[0017] Figure 3 is a schematic diagram of the arc-shaped sliding groove structure of the present application;

[0018] Figure 4 is the schematic diagram of the sliding button connected with the compression spring of the application;

[0019] Figure 5 is the schematic diagram of the internal structure of the fixed ring sleeve of the application;

[0020] Figure 6 is the schematic diagram of the compression block connected with the extension spring of the application.

[0021] In the figure: 1, insulating sleeve; 2, mounting sleeve; 3, transformer box cover; 4, fixed ring sleeve; 5, mounting groove; 6, clamping assembly; 61, clamping plate; 62, circular ring; 63, arc-shaped sliding groove; 64, sliding block one; 65, sliding block two; 66, limiting sliding groove; 7, triggering piece; 71, sliding button; 72, compression spring; 73, connecting plate; 8, pressing assembly; 81, pressing plate; 82, pressing column; 83, triggering plate; 9, locking assembly; 91, clamping block; 92, matching block; 10, compression block; 11, extension spring; 12, elastic piece. DETAILED DESCRIPTION

[0022] It is necessary to point out here that the following detailed description is only used to further illustrate the application and cannot be understood as limiting the protection scope of the application. Those skilled in the art can make some non-essential improvements and adjustments to the application according to the above application content.

[0023] Reference Figure 1 and Figure 2 The part structure shown in the figure is a gas-filled cabinet sleeve, which comprises an insulating sleeve 1, the surface of the insulating sleeve 1 is sleeved with a mounting sleeve 2, the mounting sleeve 2 is mounted on a transformer box cover 3, the surface of the transformer box cover 3 is provided with a hole, the side surface of the mounting sleeve 2 is provided with a mounting groove 5, the mounting groove 5 is installed with a clamping assembly 6 and a triggering piece 7, the clamping assembly 6 comprises a plurality of clamping plates 61, the plurality of clamping plates 61 are all slidingly connected to the inner wall of the mounting groove 5, the triggering piece 7 is rotated to drive the plurality of clamping plates 61 to slide along the inner wall of the mounting groove 5, the surface of the mounting sleeve 2 is fixedly sleeved with a fixed ring sleeve 4, the fixed ring sleeve 4 is provided with a pressing assembly 8 and a locking assembly 9, the pressing assembly 8 comprises a plurality of pressing plates 81, the locking assembly 9 is used for fixing the pressing plates 81, the pressing plates 81 and the clamping plates 61 are respectively arranged on the two side surfaces of the transformer box cover 3 corresponding to each other, and the two are matched to fix the mounting sleeve 2 in the hole of the transformer box cover 3.

[0024] It should be noted that the low-voltage and small-current outgoing line in the transformer can be led out through the gas-filled cabinet sleeve.

[0025] In the embodiment, the number of the clamping plates 61 is at least two groups, and when the number of the clamping plates 61 is two groups, the two groups of the clamping plates 61 are arranged on the left and right sides of the mounting sleeve 2 respectively. When the number of the clamping plates 61 is more than two groups, the multiple groups of the clamping plates 61 are arranged in a ring shape around the axis of the mounting sleeve 2.

[0026] It should be noted that the number of the pressing plates 81 is also at least two groups, and when the number of the pressing plates 81 is two groups, the two groups of the pressing plates 81 are arranged on the left and right sides of the fixed ring sleeve 4 respectively, and are arranged staggered with the sliding button 71. When the number of the pressing plates 81 is more than two groups, the multiple groups of the pressing plates 81 are arranged in a ring shape around the axis of the fixed ring sleeve 4, and are arranged staggered with the sliding button 71.

[0027] Reference Figures 2 to 4 As shown in the partial structure, the clamping assembly 6 further comprises a circular ring 62 rotatably connected to the inner wall of the mounting groove 5. The surface of the circular ring 62 is provided with an arc-shaped sliding groove 63 corresponding to the multiple groups of the clamping plates 61. The upper and lower sides of each group of the clamping plates 61 are respectively fixedly connected with a sliding block one 64 and a sliding block two 65. The sliding block one 64 slides along the arc-shaped sliding groove 63. The inner wall of the mounting groove 5 is provided with a limiting sliding groove 66. The sliding block two 65 slides along the limiting sliding groove 66. The circular ring 62 is fixedly connected with the trigger 7.

[0028] Further, the trigger 7 comprises a sliding button 71, a compression spring 72 and a connecting plate 73. The sliding button 71 slides along the inner wall of the mounting groove 5 and extends out of the mounting groove 5. The corresponding two sides of the surface of the connecting plate 73 are fixedly connected with the surface of the sliding button 71 and the surface of the circular ring 62 respectively. The compression spring 72 is arranged on one side of the sliding direction of the sliding button 71. The two ends of the compression spring 72 are respectively connected with the inner wall of the mounting groove 5 and the surface of the sliding button 71.

[0029] In actual use, when the compression spring 72 is not stressed, most of the clamping plates 61 are located outside the mounting groove 5. When the sliding button 71 is moved, the circular ring 62 is rotated, so that the clamping plates 61 are completely moved into the mounting groove 5. Then the mounting sleeve 2 can be inserted into the hole. Then the sliding button 71 is released. Due to the action of the compression spring 72, the clamping plates 61 are moved out of the mounting groove 5. At this time, the clamping plates 61 are clamped on the side of the transformer cover 3 located in the box, and the cooperation of the pressing assembly 8 can make the whole device installed in the hole.

[0030] Reference Figure 5 and Figure 6The shown partial structure, pressing assembly 8 further comprises pressing column 82 and trigger plate 83 corresponding to the plurality of pressing plates 81, pressing column 82 penetrates through fixed ring sleeve 4, pressing plate 81 is connected to one end of pressing column 82 close to transformer cover 3, trigger plate 83 is connected to one end of pressing column 82 away from transformer cover 3, locking assembly 9 is installed on the surface of pressing column 82.

[0031] Further, locking assembly 9 comprises a plurality of clamping blocks 91 and a plurality of matching blocks 92, the plurality of clamping blocks 91 are connected to the surface of pressing column 82, the matching blocks 92 are connected to the inner wall of fixed ring sleeve 4, the plurality of clamping blocks 91 and the plurality of matching blocks 92 are arranged in straight lines and are arranged in an intersecting manner, the surface of clamping block 91 close to one side of pressing plate 81 and the surface of matching block 92 close to one side of trigger plate 83 are inclined surfaces.

[0032] Further, the inner wall of fixed ring sleeve 4 is slidingly connected with pressing block 10, the surface of pressing block 10 is connected with tension spring 11, one end of tension spring 11 is connected to the inner wall of fixed ring sleeve 4.

[0033] In actual use, after clamping plate 61 is clamped on one side of transformer cover 3 inside the tank, trigger plate 83 is pressed, pressing plate 81 is abutted on one side of transformer cover 3 outside the tank, clamping block 91 and matching block 92 limit the movement of pressing plate 81, and clamping plate 61 is matched, the purpose of clamping transformer cover 3 is achieved, so that the whole device is connected to transformer cover 3.

[0034] It should be noted that moving pressing column 82 to the direction of pressing block 10 can make clamping block 91 away from matching block 92, at this time, pressing plate 81 can be moved away from transformer cover 3, clamping plate 61 can be moved into mounting groove 5, and the whole device can be easily taken out from the hole of transformer cover 3.

[0035] Further, the surface of pressing plate 81 close to one side of transformer cover 3 is fixedly connected with elastic member 12.

[0036] Further, elastic member 12 is a rubber pad.

[0037] It should be noted that through the cooperation of elastic member 12 and locking assembly 9, mounting sleeve 2 can be more firmly connected to transformer cover 3.

[0038] The above-described embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as limiting the scope of the present application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of protection of the present application.

Claims

1. An airbellov for an air chamber housing, characterized in that The utility model provides an insulating sleeve (1), the surface of insulating sleeve (1) is sleeved with mounting sleeve (2), mounting sleeve (2) is installed on transformer tank cover (3), the surface of transformer tank cover (3) is provided with hole, the side surface of mounting sleeve (2) is provided with installation groove (5), the installation groove (5) is installed with the clamping assembly (6) and trigger piece (7), the clamping assembly (6) includes multiple sets of clamping plate (61), multiple sets of clamping plate (61) are all slidingly connected in the inner wall of installation groove (5), rotate trigger piece (7) drive multiple sets of clamping plate (61) along the inner wall of installation groove (5) and slide, the surface of mounting sleeve (2) is fixedly sleeved with fixed ring sleeve (4), the fixed ring sleeve (4) is provided with abutting assembly (8) and locking assembly (9), the abutting assembly (8) includes multiple sets of abutting plate (81), the locking assembly (9) is used for fixing abutting plate (81), abutting plate (81) and clamping plate (61) are respectively arranged on the two side surfaces of transformer tank cover (3) corresponding, and the both cooperation makes mounting sleeve (2) fixed in the hole of transformer tank cover (3); Wherein, the clamping assembly (6) further includes a circular ring (62), the circular ring (62) is rotatably connected to the inner wall of the installation groove (5), the surface of the circular ring (62) is provided with an arc-shaped sliding groove (63) corresponding to the multiple sets of clamping plates (61), each set of clamping plate (61) has a sliding block one (64) and a sliding block two (65) fixedly connected to the corresponding two sides thereof, the sliding block one (64) slides along the arc-shaped sliding groove (63), the inner wall of the installation groove (5) is provided with a limiting sliding groove (66), the sliding block two (65) slides along the limiting sliding groove (66), the circular ring (62) is fixedly connected with the trigger piece (7); Wherein, the trigger piece (7) includes a sliding button (71), a compression spring (72) and a connecting plate (73), the sliding button (71) slides along the inner wall of the installation groove (5) and extends out of the installation groove (5), the connecting plate (73) is fixedly connected to the surface of the sliding button (71) and the circular ring (62) on the corresponding two side surfaces thereof, the compression spring (72) is arranged on one side of the sliding direction of the sliding button (71), and the two ends of the compression spring (72) are connected to the inner wall of the installation groove (5) and the surface of the sliding button (71) respectively.

2. An air-entrapment bushing according to claim 1, wherein: The abutting assembly (8) further includes an abutting column (82) and a trigger plate (83) corresponding to the multiple sets of abutting plates (81), the abutting column (82) penetrates the fixed ring sleeve (4), the abutting plate (81) is connected to one end of the abutting column (82) close to the transformer tank cover (3), the trigger plate (83) is connected to the other end of the abutting column (82) away from the transformer tank cover (3), and the locking assembly (9) is installed on the surface of the abutting column (82).

3. An airbell sleeve as claimed in claim 2, characterised in that: The locking assembly (9) comprises a plurality of sets of clamping blocks (91) and a plurality of sets of matching blocks (92), the plurality of sets of clamping blocks (91) are connected to the surface of the pressing column (82), the matching blocks (92) are connected to the inner wall of the fixed ring sleeve (4), the plurality of sets of clamping blocks (91) and the plurality of sets of matching blocks (92) are linearly arranged and cross each other, and the surface of the clamping block (91) close to the side of the pressing plate (81) and the surface of the matching block (92) close to the side of the trigger plate (83) are both inclined surfaces.

4. An airbell sleeve as claimed in claim 3, characterised in that: The inner wall of the fixed ring sleeve (4) is slidably connected with a pressing block (10), the surface of the pressing block (10) is connected with a tension spring (11), and one end of the tension spring (11) is connected to the inner wall of the fixed ring sleeve (4).

5. An air-entrapment bushing according to claim 1, wherein: The surface of the pressing plate (81) close to the side of the transformer box cover (3) is fixedly connected with an elastic member (12).

6. An airbell sleeve as claimed in claim 5, characterised in that: The elastic member (12) is a rubber pad.

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