Incoming and outgoing line umbrella skirt sleeve

Abstract

The utility model relates to the technical field of incoming and outgoing line umbrella skirt sleeves, in particular to an incoming and outgoing line umbrella skirt sleeve, which comprises a lower insulating sleeve and an upper insulating sleeve, the lower insulating sleeve and the upper insulating sleeve are mutually inserted, a conductor is jointly inserted in the upper insulating sleeve and the lower insulating sleeve, the upper end of the upper insulating sleeve is fixedly connected with a climbing increasing frame, and the lower end of the climbing increasing frame is fixedly connected with a connecting rod. The side wall of the upper insulation sleeve is fixedly connected with an umbrella skirt, the lower end of the side wall of the upper insulation sleeve is fixedly connected with a connecting ring, the upper end of the side wall of the lower insulation sleeve is fixedly connected with a flange plate, and the connecting ring is inserted into the flange plate in a matched mode and connected with the flange plate through multiple sets of bolts. The insulating sleeve of the conductor is divided into two parts, the upper insulating sleeve and the lower insulating sleeve are in butt joint through the plug and the slot and are fixedly connected through the connecting ring, the flange plate and the bolt, when the insulating sleeve is damaged and needs to be replaced, only the upper insulating sleeve or the lower insulating sleeve needs to be replaced as long as the whole insulating sleeve is not damaged, and replacement is convenient. The replacement cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of inlet and outlet line umbrella skirt sleeves, in particular to an inlet and outlet line umbrella skirt sleeve. Background Art

[0002] The incoming and outgoing line shed bushing is a device used to protect conductors and is a key equipment in the DC transmission system. It has excellent insulation and pollution resistance. The two ends of the incoming and outgoing line shed bushing are conductively connected to the incoming and outgoing lines respectively.

[0003] Existing incoming and outgoing line umbrella skirt bushings, for example, a line outlet bushing with an umbrella skirt proposed in patent application number "CN201920076961.9", is composed of structures such as a conductor, an insulating sleeve, and a flange. One end of the insulating sleeve is a cone structure, and the other end of the insulating sleeve is provided with several circular climbers. The several circular climbers form an umbrella skirt structure, a first climber is provided next to the umbrella skirt structure, a second climber is provided next to the first climber, and the second climber is provided at the end of the insulating sleeve. The utility model is convenient, reliable, pressure-resistant, and has improved partial discharge performance of the line outlet bushing with an umbrella skirt.

[0004] However, the existing technology has defects. The insulating sleeve is an integrated structure with a fixed length and needs to be used with a conductor of a matching length. Conductors of different lengths require insulating sleeves of different lengths. When replacing a damaged insulating sleeve, the entire insulating sleeve needs to be replaced, and the replacement cost is high. Therefore, an incoming and outgoing line umbrella skirt sleeve is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide an inlet and outlet line umbrella skirt sleeve to solve the problems raised in the above background technology.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A line inlet and outlet umbrella skirt sleeve comprises a lower insulating sleeve and an upper insulating sleeve, wherein the lower insulating sleeve and the upper insulating sleeve are plugged into each other, and a conductor is plugged into the interior of the upper insulating sleeve and the lower insulating sleeve. A climbing frame is fixedly connected to the upper end of the upper insulating sleeve, an umbrella skirt is fixedly connected to the side wall of the upper insulating sleeve, a connecting ring is fixedly connected to the lower end of the side wall of the upper insulating sleeve, and a flange is fixedly connected to the upper end of the side wall of the lower insulating sleeve. The connecting ring and the flange are fitted and plugged in, and the connecting ring and the flange are connected by multiple sets of bolts.

[0008] Preferably, a plug is fixed to the lower end of the upper insulating sleeve, the side shape of the plug is set to a stepped shape, a slot is opened at the upper end of the flange, the inner wall shape of the slot is set to a stepped shape, the plug and the slot are plugged and installed, and the conductor runs through the middle of the plug and the slot.

[0009] Preferably, an embedded groove is provided between the flange and the plug. The shape of the embedded groove is set to be annular. The conductor passes through the center of the embedded groove. An insulating sealing ring is clamped inside the embedded groove to increase the sealing between the upper insulating sleeve and the lower insulating sleeve.

[0010] Preferably, a circular groove is provided on the bottom wall of the climbing frame, the center of the circular groove is aligned with the center of the conductor, a clamping ring is clamped inside the circular groove, a sealing gasket is fixed to the upper end of the clamping ring, the shape of the sealing gasket is set to be circular, and the inner wall of the sealing gasket is tightly fitted with the outer wall of the conductor.

[0011] Preferably, a clamping groove is provided on the inner wall of the annular groove, a clamping plate is fixedly connected to the side wall of the clamping ring, and the clamping plate is clamped and matched with the clamping groove.

[0012] Preferably, a lower threaded ring and an upper threaded ring are fixed to the side wall of the conductor, the lower threaded ring is used to increase the connection stability between the lower insulating sleeve and the conductor, and the upper threaded ring is used to increase the connection stability between the upper insulating sleeve and the conductor.

[0013] Beneficial effects of the utility model:

[0014] The utility model divides the insulating sleeve of the conductor into two parts, connects the upper insulating sleeve and the lower insulating sleeve through a plug and a slot, and fixes them through a connecting ring, a flange and bolts. When the insulating sleeve is damaged and needs to be replaced, as long as the entire insulating sleeve is not damaged, only the upper insulating sleeve or the lower insulating sleeve needs to be replaced, thereby reducing replacement costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, it is possible for a person skilled in the art to derive other drawings based on these drawings without inventive effort.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the overall explosion structure of the utility model;

[0019] Figure 4 yes Figure 2 A magnified schematic diagram of the structure at A;

[0020] The reference numerals in the figures are as follows:

[0021] 1. Lower insulating sleeve; 2. Flange; 3. Umbrella skirt; 4. Climbing frame; 5. Conductor; 6. Lower threaded ring; 7. Upper threaded ring; 9. Connecting ring; 10. Bolt; 11. Slot; 12. Plug; 13. Insulating sealing ring; 14. Ring groove; 15. Snap ring; 16. Slot; 17. Card plate; 18. Sealing gasket; 19. Embedded groove; 20. Upper insulating sleeve. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0023] A kind of inlet and outlet line skirt sleeve, such as Figures 1-4 As shown, it includes a lower insulating sleeve 1 and an upper insulating sleeve 20, which are plugged into each other, and a conductor 5 is commonly plugged into the upper insulating sleeve 20 and the lower insulating sleeve 1. The upper end of the upper insulating sleeve 20 is fixedly connected to a climbing frame 4, the side wall of the upper insulating sleeve 20 is fixedly connected to an umbrella skirt 3, the lower end of the side wall of the upper insulating sleeve 20 is fixedly connected to a connecting ring 9, and the upper end of the side wall of the lower insulating sleeve 1 is fixedly connected to a flange 2. The connecting ring 9 is fitted and plugged into the flange 2, and the connecting ring 9 and the flange 2 are connected through multiple sets of bolts 10.

[0024] By dividing the insulating sleeve of the conductor 5 into two parts, the upper insulating sleeve 20 and the lower insulating sleeve 1 jointly protect the conductor 5, and the two ends of the conductor 5 are conductively connected to the incoming and outgoing lines respectively. The umbrella skirt 3 is located on the side wall of the upper insulating sleeve 20, and the climbing frame 4 facilitates the conductive installation of the conductor 5. The upper insulating sleeve 20 and the lower insulating sleeve 1 are connected through the plug 12 and the slot 11, and are fixed through the connecting ring 9, the flange 2 and the bolt 10. The inner wall of the connecting ring 9 and the outer wall of the flange 2 fit tightly to fix the upper insulating sleeve 20 and the lower insulating sleeve 1. When the insulating sleeve is damaged and needs to be replaced, as long as it is not damaged as a whole, only the upper insulating sleeve 20 or the lower insulating sleeve 1 needs to be replaced, thereby reducing the replacement cost.

[0025] like Figure 2 As shown, the lower end of the upper insulating sleeve 20 is fixedly connected to a plug 12, the side shape of the plug 12 is set to a stepped shape, the upper end of the flange 2 is provided with a slot 11, the inner wall shape of the slot 11 is set to a stepped shape, the plug 12 and the slot 11 are plugged and installed, and the conductor 5 passes through the middle of the plug 12 and the slot 11.

[0026] The stepped plug 12 and the stepped slot 11 are butted against each other, and the contact area between the two is large, and the sealing performance is better.

[0027] like Figure 2-Figure 3As shown, an embedded groove 19 is provided between the flange 2 and the plug 12. The shape of the embedded groove 19 is set to be annular. The conductor 5 passes through the center of the embedded groove 19. An insulating sealing ring 13 is clamped inside the embedded groove 19 to increase the sealing between the upper insulating sleeve 20 and the lower insulating sleeve 1.

[0028] An insulating sealing ring 13 is installed between the upper insulating sleeve 20 and the lower insulating sleeve 1 , and the insulating sealing ring 13 increases the sealing performance between the upper insulating sleeve 20 and the lower insulating sleeve 1 .

[0029] like Figure 2-Figure 4 As shown, the bottom wall of the climbing frame 4 is provided with an annular groove 14, the center of the annular groove 14 is aligned with the center of the conductor 5, a clamping ring 15 is clamped inside the annular groove 14, and a sealing gasket 18 is fixed to the upper end of the clamping ring 15. The shape of the sealing gasket 18 is set to be annular, and the inner wall of the sealing gasket 18 is tightly fitted with the outer wall of the conductor 5.

[0030] In order to prevent gaps between the conductor 5 and the insulating sleeve, a sealing gasket 18 is installed inside the climbing frame 4. The sealing gasket 18 seals the conductor 5 and the inner wall of the climbing frame 4. The sealing gasket 18 is installed in the climbing frame 4 through the clamping ring 15 and the annular groove 14, which is convenient for disassembly and installation. The volume of the clamping ring 15 stuck in the climbing frame 4 is greater than half of the overall volume of the clamping ring 15 to prevent it from falling off.

[0031] like Figure 4 As shown, a clamping groove 16 is provided on the inner wall of the annular groove 14 , and a clamping plate 17 is fixedly connected to the side wall of the clamping ring 15 , and the clamping plate 17 is clamped and matched with the clamping groove 16 .

[0032] The side wall of the clamping ring 15 is clamped and installed on the climbing frame 4 through the clamping groove 16 and the clamping plate 17. The clamping plate 17 increases the resistance of the clamping ring 15 to escape from the annular groove 14.

[0033] like Figure 2-Figure 3 As shown, the side wall of the conductor 5 is fixed with a lower threaded ring 6 and an upper threaded ring 7. The lower threaded ring 6 is used to increase the connection stability between the lower insulating sleeve 1 and the conductor 5, and the upper threaded ring 7 is used to increase the connection stability between the upper insulating sleeve 20 and the conductor 5.

[0034] The upper threaded ring 7 increases the friction between the conductor 5 and the upper insulating sleeve 20 , and the lower threaded ring 6 increases the friction between the conductor 5 and the lower insulating sleeve 1 , so that the upper insulating sleeve 20 and the lower insulating sleeve 1 are installed and tightened with the conductor 5 .

[0035] The working principle of the inlet and outlet line shed 3 sleeve provided by the utility model is as follows:

[0036] By dividing the insulating sleeve of the conductor 5 into two parts, the upper insulating sleeve 20 and the lower insulating sleeve 1 are connected via the plug 12 and the slot 11, and are fixed via the connecting ring 9, the flange 2 and the bolt 10, the upper insulating sleeve 20 and the lower insulating sleeve 1 are fixed, and an insulating sealing ring 13 is added between the upper insulating sleeve 20 and the lower insulating sleeve 1 to improve the sealing between the upper insulating sleeve 20 and the lower insulating sleeve 1. When the insulating sleeve is damaged and needs to be replaced, as long as it is not damaged as a whole, only the upper insulating sleeve 20 or the lower insulating sleeve 1 needs to be replaced, thereby reducing the replacement cost.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. An inlet and outlet line shed sleeve, comprising a lower insulating sleeve (1) and an upper insulating sleeve (20), characterized in that: The lower insulating sleeve (1) and the upper insulating sleeve (20) are plugged into each other, and a conductor (5) is commonly plugged into the interior of the upper insulating sleeve (20) and the lower insulating sleeve (1). The upper end of the upper insulating sleeve (20) is fixedly connected to a climbing frame (4), the side wall of the upper insulating sleeve (20) is fixedly connected to an umbrella skirt (3), the lower end of the side wall of the upper insulating sleeve (20) is fixedly connected to a connecting ring (9), and the upper end of the side wall of the lower insulating sleeve (1) is fixedly connected to a flange (2). The connecting ring (9) and the flange (2) are plugged in and out of engagement, and the connecting ring (9) and the flange (2) are connected via a plurality of sets of bolts (10).

2. The inlet and outlet line shed sleeve according to claim 1, characterized in that: The lower end of the upper insulating sleeve (20) is fixedly connected to a plug (12), the side shape of the plug (12) is set to a stepped shape, the upper end of the flange (2) is provided with a slot (11), the inner wall shape of the slot (11) is set to a stepped shape, the plug (12) and the slot (11) are plugged and installed, and the conductor (5) passes through the middle of the plug (12) and the slot (11).

3. The inlet and outlet line shed sleeve according to claim 2, characterized in that: An embedded groove (19) is provided between the flange (2) and the plug (12). The embedded groove (19) is annular in shape. The conductor (5) passes through the center of the embedded groove (19). An insulating sealing ring (13) is clamped inside the embedded groove (19) for increasing the sealing performance between the upper insulating sleeve (20) and the lower insulating sleeve (1).

4. The inlet and outlet line shed sleeve according to claim 1, characterized in that: The bottom wall of the climbing frame (4) is provided with an annular groove (14), the center of the annular groove (14) is aligned with the center of the conductor (5), a clamping ring (15) is clamped inside the annular groove (14), and a sealing gasket (18) is fixed to the upper end of the clamping ring (15), the shape of the sealing gasket (18) is set to be annular, and the inner wall of the sealing gasket (18) is tightly fitted with the outer wall of the conductor (5).

5. The inlet and outlet line shed sleeve according to claim 4, characterized in that: The inner wall of the annular groove (14) is provided with a clamping groove (16), the side wall of the clamping ring (15) is fixedly connected with a clamping plate (17), and the clamping plate (17) is clamped and matched with the clamping groove (16).

6. The inlet and outlet line shed sleeve according to claim 1, characterized in that: A lower threaded ring (6) and an upper threaded ring (7) are fixedly connected to the side wall of the conductor (5); the lower threaded ring (6) is used to increase the connection stability between the lower insulating sleeve (1) and the conductor (5); and the upper threaded ring (7) is used to increase the connection stability between the upper insulating sleeve (20) and the conductor (5).

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