Casing pipe of gas-insulated switchgear

Abstract

The invention relates to an inflatable cabinet sleeve. The gas insulated switchgear sleeve comprises an insulation sleeve, the surface of the insulation sleeve is sleeved with an installation sleeve, the installation sleeve is installed on a transformer box cover, a hole is formed in the surface of the transformer box cover, an installation groove is formed in the side surface of the installation sleeve, a clamping assembly and a trigger piece are installed in the installation groove, the clamping assembly comprises a plurality of sets of clamping plates, and the clamping plates are connected with the trigger piece. The multiple sets of clamping plates are slidably connected to the inner wall of the mounting groove, and the triggering piece is rotated to drive the multiple sets of clamping plates to slide along the inner wall of the mounting groove. According to the gas-insulated switchgear bushing, the hole is formed in the transformer box cover, and the gas-insulated switchgear bushing is installed in the hole to lead out low-voltage and low-current outgoing lines in a transformer, so that the problem that the performance margin of a common transformer bushing is too large due to the fact that the voltage and the current of power transmission and transformation equipment are small is solved; and in addition, bolts or screws do not need to be matched for use during installation, so that the overall connection is more convenient.

Description

Technical Field

[0001] The invention belongs to the technical field of transformers, and in particular relates to a bushing of an inflatable cabinet. Background Art

[0002] The transformer bushing is the main insulating device outside the transformer box. The lead wires of the transformer winding must pass through the insulating bushing to insulate the lead wires and between the lead wires and the transformer casing. At the same time, it plays the role of fixing the lead wires. Due to different voltage levels, the insulating bushing is in the form of pure porcelain bushing, oil-filled bushing and capacitor bushing.

[0003] However, the existing transformer bushing has too large a performance margin when the voltage and current of the power transmission and transformation equipment are small. The bushing design with too large a margin will increase the manufacturing cost of the transformer bushing. Although this can improve the reliability of the bushing, it is usually not cost-effective, and too high a margin may not fully exert the function of the bushing, thereby causing unnecessary waste of resources. Summary of the invention

[0004] The purpose of the present invention is to provide an inflatable cabinet casing with a simple structure and reasonable design in order to solve the above problems.

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

[0006] A gas cabinet casing, comprising an insulating sleeve, a mounting sleeve being provided on the surface of the insulating sleeve, the mounting sleeve being installed on a transformer box cover, the surface of the transformer box cover being provided with holes, a mounting groove being provided on the side surface of the mounting sleeve, a clamping assembly and a triggering member being installed in the mounting groove, the clamping assembly comprising a plurality of groups of clamping plates, the plurality of groups of clamping plates being slidably connected to the inner wall of the mounting groove, the triggering member being rotated to drive the plurality of groups of clamping plates to slide along the inner wall of the mounting groove, a fixing ring sleeve being provided on the surface of the mounting sleeve, a pressing assembly and a locking assembly being provided in the fixing ring sleeve, the pressing assembly comprising a plurality of groups of pressing plates, the locking assembly being used to fix the pressing plates, the pressing plates and the clamping plates being respectively provided on the corresponding two side surfaces of the transformer box cover, the two cooperating to fix the mounting sleeve in the hole of the transformer box cover.

[0007] As a further optimization scheme of the present invention, the clamping assembly also includes a circular ring, which is rotatably connected to the inner wall of the mounting groove, and the surface of the circular ring is provided with arc-shaped sliding grooves corresponding to multiple groups of clamping plates, and each group of clamping plates is fixedly connected with a slider 1 and a slider 2 on the upper and lower corresponding sides respectively, and the slider 1 slides along the arc-shaped sliding groove, and the inner wall of the mounting groove is provided with a limiting sliding groove, and the slider 2 slides along the limiting sliding groove, and the circular ring is fixedly connected to the trigger member.

[0008] As a further optimization scheme of the present invention, the trigger member includes a sliding button, a compression spring and a connecting plate. The sliding button slides along the inner wall of the mounting groove and extends outside the mounting groove. The corresponding two side surfaces of the connecting plate are fixedly connected to the surfaces of the sliding button and the ring respectively. The compression spring is arranged on one side of the sliding direction of the sliding button, and the two ends of the compression spring are respectively connected to the inner wall of the mounting groove and the surface of the sliding button.

[0009] As a further optimization scheme of the present invention, the pressure assembly also includes a pressure column and a trigger plate arranged corresponding to the multiple groups of pressure plates, the pressure column passes through the fixed ring sleeve, the pressure plate is connected to the end of the pressure column close to the transformer box cover, the trigger plate is connected to the end of the pressure column away from the transformer box cover, and the locking assembly is installed on the surface of the pressure column.

[0010] As a further optimization scheme of the present invention, the locking assembly includes multiple groups of card blocks and multiple groups of matching blocks, the multiple groups of card blocks are connected to the surface of the pressure column, and the matching blocks are connected to the inner wall of the fixed ring sleeve, the multiple groups of card blocks and the multiple groups of matching blocks are arranged in a straight line, and the two are cross-set, and the surface of the card block close to the pressure plate and the surface of the matching block close to the trigger plate are both inclined surfaces.

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

[0012] As a further optimization solution of the present invention, an elastic member is fixedly connected to the surface of the pressure plate on the side close to the transformer box cover.

[0013] As a further optimization solution of the present invention, the elastic member is a rubber pad.

[0014] The beneficial effects of the present invention are as follows: a hole is opened on the transformer box cover, and the inflatable cabinet bushing of the present invention is installed on the hole to lead out the low voltage and low current outlet lines of the transformer, thereby solving the problem that the performance margin of ordinary transformer bushings is too large due to the small voltage and current of the power transmission and transformation equipment. In addition, the present invention does not need to be used in conjunction with bolts or screws during installation, making the overall connection more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 It is a schematic diagram of the internal structure of the installation sleeve of the present invention;

[0017] Figure 3 It is a schematic diagram of the structure of the arc chute of the present invention;

[0018] Figure 4 It is a schematic diagram of the connection between the sliding button and the compression spring of the present invention;

[0019] Figure 5 It is a schematic diagram of the internal structure of the fixing ring sleeve of the present invention;

[0020] Figure 6 It is a schematic diagram of the connection between the pressing block and the tension spring of the present invention.

[0021] In the figure: 1. Insulating sleeve; 2. Mounting sleeve; 3. Transformer box cover; 4. Fixed ring sleeve; 5. Mounting groove; 6. Card assembly; 61. Card plate; 62. Ring; 63. Arc slide groove; 64. Slider 1; 65. Slider 2; 66. Limiting slide groove; 7. Trigger member; 71. Sliding button; 72. Compression spring; 73. Connecting plate; 8. Pressing assembly; 81. Pressing plate; 82. Pressing column; 83. Trigger plate; 9. Locking assembly; 91. Card block; 92. Matching block; 10. Pressing block; 11. Tension spring; 12. Elastic member. DETAILED DESCRIPTION

[0022] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0023] refer to Figure 1 and Figure 2 The partial structure shown is an inflatable cabinet casing, including an insulating sleeve 1, a mounting sleeve 2 is sleeved on the surface of the insulating sleeve 1, and the mounting sleeve 2 is installed on the transformer box cover 3. The surface of the transformer box cover 3 is provided with holes, and a mounting groove 5 is provided on the side surface of the mounting sleeve 2. A clamping assembly 6 and a trigger member 7 are installed in the mounting groove 5. The clamping assembly 6 includes multiple groups of clamping plates 61, and the multiple groups of clamping plates 61 are all slidably connected to the inner wall of the mounting groove 5. The trigger member 7 is rotated to drive the multiple groups 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 fixing ring sleeve 4, and a pressing assembly 8 and a locking assembly 9 are arranged in the fixing ring sleeve 4. The pressing assembly 8 includes multiple groups of pressing plates 81, and the locking assembly 9 is used to fix the pressing plates 81. The pressing plates 81 and the clamping plates 61 are respectively arranged on the corresponding two side surfaces of the transformer box cover 3, and the two cooperate to fix the mounting sleeve 2 in the hole of the transformer box cover 3.

[0024] It should be noted that the present invention can lead out the low voltage and low current outgoing wires of the transformer through the bushing of the gas charging cabinet.

[0025] In this embodiment, the number of the card plates 61 is set to at least two groups, and when the number of the card plates 61 is set to two groups, the two groups of card plates 61 need to be respectively arranged on the left and right sides of the mounting sleeve 2. When the number of the card plates 61 is set to more than two groups, multiple groups of card plates 61 can be arranged in a ring shape with the axial line of the mounting sleeve 2 as the center.

[0026] It should be noted that the number of the pressure plates 81 is also set to at least two groups. When the number is set to two groups, they not only need to be respectively arranged on the left and right sides of the fixed ring sleeve 4, but also need to be staggered with the sliding button 71. When the number is set to more than two groups, the axial line of the fixed ring sleeve 4 can be used as the center to make multiple groups of clamping plates 61 arranged in a ring shape, and at the same time staggered with the sliding button 71.

[0027] refer to Figures 2 to 4 In the partial structure shown, the clamping assembly 6 also includes a ring 62, which is rotatably connected to the inner wall of the mounting groove 5. The surface of the ring 62 is provided with arc-shaped slide grooves 63 corresponding to the multiple groups of clamping plates 61. The upper and lower corresponding sides of each group of clamping plates 61 are respectively fixedly connected with a slider 1 64 and a slider 2 65. The slider 1 64 slides along the arc-shaped slide groove 63. The inner wall of the mounting groove 5 is provided with a limiting slide groove 66. The slider 2 65 slides along the limiting slide groove 66. The ring 62 is fixedly connected to the trigger member 7.

[0028] Furthermore, the trigger member 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 mounting groove 5 and extends outside the mounting groove 5. The corresponding two side surfaces of the connecting plate 73 are fixedly connected to the surfaces of the sliding button 71 and the ring 62 respectively. 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 respectively connected to 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 subjected to force, most of the card plate 61 is located on the outside of the installation groove 5. When the sliding button 71 is moved, the ring 62 will be driven to rotate, so that the card plate 61 is completely moved into the installation groove 5. Then the installation sleeve 2 can be inserted into the hole, and then the sliding button 71 is released. Due to the force of the compression spring 72, the card plate 61 is moved out of the installation groove 5. At this time, the card plate 61 is stuck on the side of the transformer box cover 3 located inside the box body, and it cooperates with the pressing component 8 to enable the entire device to be installed in the hole.

[0030] refer to Figure 5 and Figure 6In the partial structure shown, the pressure assembly 8 also includes a pressure column 82 and a trigger plate 83 arranged corresponding to the multiple groups of pressure plates 81. The pressure column 82 passes through the fixed ring sleeve 4, the pressure plate 81 is connected to the end of the pressure column 82 close to the transformer box cover 3, the trigger plate 83 is connected to the end of the pressure column 82 away from the transformer box cover 3, and the locking assembly 9 is installed on the surface of the pressure column 82.

[0031] Furthermore, the locking assembly 9 includes multiple groups of card blocks 91 and multiple groups of matching blocks 92. The multiple groups of card blocks 91 are connected to the surface of the pressure column 82, and the matching blocks 92 are connected to the inner wall of the fixed ring sleeve 4. The multiple groups of card blocks 91 and the multiple groups of matching blocks 92 are arranged in a straight line, and the two are cross-set. The surface of the card block 91 close to the pressure plate 81 and the surface of the matching block 92 close to the trigger plate 83 are both inclined surfaces.

[0032] Furthermore, a pressing block 10 is slidably connected to the inner wall of the fixed ring sleeve 4 , a tension spring 11 is connected to the surface of the pressing block 10 , and one end of the tension spring 11 is connected to the inner wall of the fixed ring sleeve 4 .

[0033] In actual use, after the clamping plate 61 is clamped on the side of the transformer cover 3 located inside the box, the trigger plate 83 is pressed to make the pressure plate 81 abut against the side of the transformer cover 3 located outside the box, and the clamping block 91 and the matching block 92 limit the movement of the pressure plate 81 and cooperate with the clamping plate 61 to achieve the purpose of clamping the transformer cover 3, so that the entire device is connected to the transformer cover 3.

[0034] It should be noted that moving the pressure column 82 toward the pressure block 10 can move the clamping block 91 away from the matching block 92. At this time, the pressure plate 81 can be moved away from the transformer box cover 3, and the matching clamping plate 61 can be moved into the installation groove 5, so that the entire device can be easily removed from the hole in the transformer box cover 3.

[0035] Furthermore, an elastic member 12 is fixedly connected to the surface of the pressing plate 81 on the side close to the transformer box cover 3 .

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

[0037] It should be noted that, by providing the elastic member 12 and the locking assembly 9 in cooperation, the installation sleeve 2 can be more firmly connected to the transformer box cover 3 .

[0038] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. An inflatable cabinet casing, characterized in that: The utility model comprises an insulating sleeve (1), wherein a mounting sleeve (2) is sleeved on the surface of the insulating sleeve (1), wherein the mounting sleeve (2) is mounted on a transformer box cover (3), wherein a hole is provided on the surface of the transformer box cover (3), wherein a mounting groove (5) is provided on the side surface of the mounting sleeve (2), wherein a clamping assembly (6) and a trigger member (7) are installed in the mounting groove (5), wherein the clamping assembly (6) comprises a plurality of sets of clamping plates (61), wherein the plurality of sets of clamping plates (61) are slidably connected to the inner wall of the mounting groove (5), and wherein the trigger member (7) is rotated to drive the plurality of sets of clamping plates (61) to move. The clamping plate (61) slides along the inner wall of the installation groove (5); a fixing ring sleeve (4) is provided on the surface fixing sleeve of the installation sleeve (2); a pressing assembly (8) and a locking assembly (9) are provided inside the fixing ring sleeve (4); the pressing assembly (8) comprises a plurality of groups of pressing plates (81); the locking assembly (9) is used to fix the pressing plates (81); the pressing plates (81) and the clamping plate (61) are respectively provided on the corresponding two side surfaces of the transformer box cover (3); the two cooperate to fix the installation sleeve (2) in the hole of the transformer box cover (3).

2. The inflatable cabinet casing according to claim 1, characterized in that: The clamping assembly (6) further comprises a circular ring (62), wherein the circular ring (62) is rotatably connected to the inner wall of the mounting groove (5), and the surface of the circular ring (62) is provided with arc-shaped sliding grooves (63) corresponding to the plurality of groups of clamping plates (61), and the upper and lower corresponding sides of each group of clamping plates (61) are respectively fixedly connected with a slider 1 (64) and a slider 2 (65), wherein the slider 1 (64) slides along the arc-shaped sliding groove (63), and the inner wall of the mounting groove (5) is provided with a limiting sliding groove (66), and the slider 2 (65) slides along the limiting sliding groove (66), and the circular ring (62) is fixedly connected to the trigger member (7).

3. The inflatable cabinet casing according to claim 2, characterized in that: The trigger member (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 outside the mounting groove (5); the corresponding two side surfaces of the connecting plate (73) are respectively fixedly connected to the sliding button (71) and the surface of the ring (62); 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 respectively connected to the inner wall of the mounting groove (5) and the surface of the sliding button (71).

4. The inflatable cabinet casing according to claim 1, characterized in that: The pressing assembly (8) further comprises a pressing column (82) and a trigger plate (83) which are arranged corresponding to the plurality of pressing plates (81); the pressing column (82) passes through the fixing ring sleeve (4); the pressing plate (81) is connected to one end of the pressing column (82) close to the transformer box cover (3); the trigger plate (83) is connected to one end of the pressing column (82) away from the transformer box cover (3); and the locking assembly (9) is mounted on the surface of the pressing column (82).

5. The inflatable cabinet casing according to claim 4, characterized in that: The locking assembly (9) comprises a plurality of groups of card blocks (91) and a plurality of groups of matching blocks (92); the plurality of groups of card blocks (91) are connected to the surface of the pressure column (82); the matching blocks (92) are connected to the inner wall of the fixed ring sleeve (4); the plurality of groups of card blocks (91) and the plurality of groups of matching blocks (92) are arranged in a straight line and are arranged crosswise; the surface of the card blocks (91) close to the pressure plate (81) and the surface of the matching blocks (92) close to the trigger plate (83) are both inclined surfaces.

6. The inflatable cabinet casing according to claim 5, characterized in that: The inner wall of the fixed ring sleeve (4) is slidably connected with a pressure block (10), the surface of the pressure 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).

7. The inflatable cabinet casing according to claim 1, characterized in that: An elastic member (12) is fixedly connected to the surface of the pressure plate (81) on the side close to the transformer box cover (3).

8. The inflatable cabinet casing according to claim 7, characterized in that: The elastic member (12) is a rubber pad.

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