Novel transformer bushing for power transformation

Abstract

The invention relates to the technical field of electrical engineering, and discloses a novel transformer bushing for power transformation, comprising: a sleeve, the outer wall of which is sleeved with a plurality of umbrella skirts of different sizes; the clamping blocks are mounted on one sides of the umbrella skirts and are used for clamping the umbrella skirts; the flange is mounted at the bottom of the sleeve and used for mounting the sleeve; the clamping plate is arranged on one side of the umbrella skirts and is used for fixing the positions of the umbrella skirts; the sealing assembly is arranged outside the umbrella skirts and is used for sealing the connection parts of the umbrella skirts; and the auxiliary butt joint assembly is arranged on one side of the umbrella skirt and is used for enhancing the strength of the umbrella skirt after butt joint. The umbrella skirts are quickly butted through the clamping blocks, bolts and the like are not needed, so that the umbrella skirts can be flexibly arranged according to requirements, the umbrella skirts can be conveniently detached and replaced when equipment is maintained, the overhauling operation efficiency of operators is improved, the flexibility of the equipment is improved, and the application range of the equipment is widened.

Description

Technical Field

[0001] The invention relates to the technical field of electrical engineering, in particular to a new transformer bushing for power transformation. Background Art

[0002] In transformers, bushings are important insulating and supporting components for the lead-out conductors. They are used to safely lead the high-voltage conductors inside the transformer to the outside, while providing electrical insulation and mechanical support. Traditional transformer bushings are usually made of ceramic or composite materials and fixed with mechanical connectors such as bolts and nuts to ensure their stability during operation. Now, with the increasing requirements for power equipment, transformer bushings are facing new technical challenges in terms of connection stability, sealing reliability and ease of maintenance.

[0003] In substation equipment, bushing connections are usually integrated or rely on bolts, nuts and other fasteners to ensure the firmness between the components. However, this fixing method has the problems of complex assembly and inconvenient maintenance in actual use, especially in occasions that require frequent inspection or replacement. The traditional fixing method not only increases the maintenance workload, but also limits the flexibility and applicability of the equipment in different substation environments;

[0004] Secondly, the sealing performance of transformer bushing is crucial to its stability during operation. However, the existing sealing system mainly relies on mechanical fixing devices such as bolts, which are prone to loosening under long-term use or vibration, resulting in sealing failure and affecting the normal operation of the transformer. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a new transformer bushing for power transformation, which solves the problem that in the installation of traditional transformer bushings, the shed is generally fixed in position and difficult to change, and the maintenance is inconvenient.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A new transformer bushing for power transformation, comprising:

[0007] A sleeve, the outer wall of which is provided with a plurality of umbrella skirts of different sizes;

[0008] A clamping block is installed on one side of the shed and is used for clamping the sheds together;

[0009] A flange is installed at the bottom of the sleeve and is used for installing the sleeve;

[0010] A card plate is installed on one side of the shed to fix the position between the sheds;

[0011] A sealing assembly, which is installed outside the shed and is used to seal the shed connection;

[0012] The auxiliary docking assembly is installed on one side of the shed to enhance the strength of the shed after docking.

[0013] Preferably, the sealing assembly comprises an upper sealing ring, a lower sealing ring is arranged at the bottom of the upper sealing ring, and umbrella skirts are arranged between the upper sealing ring and the lower sealing ring.

[0014] Preferably, the umbrella skirt on one side is provided with a first card slot, and the umbrella skirt on the other side is provided with a second card slot.

[0015] Preferably, the card block is embedded in the first card slot, and the card plate is embedded in the second card slot.

[0016] Preferably, the umbrella skirt is arranged in multiple layers, and the heights decrease successively.

[0017] Preferably, the auxiliary docking assembly comprises a docking ring, the docking ring is fixed to one side of the umbrella skirt, a spring is arranged inside the docking ring, and a slider is fixed to one end of the spring.

[0018] Preferably, the slider slides inside the docking ring, a locking ball is provided on one side of the slider, and a limiting block is fixed on the outer wall of the locking ball.

[0019] Preferably, a docking groove is provided on the outer wall of the sleeve, and the docking ring is embedded in the docking groove.

[0020] Working principle: When the umbrella skirts are freely combined according to needs, the umbrella skirts on both sides are first slightly tilted, and then approach the sleeve. At this time, the sleeve is surrounded by the umbrella skirts on both sides, so that the card block is inserted into the card slot one, and the card plate will also enter the straight part of the card slot two. After the initial docking, the umbrella skirts on both sides can continue to move closer. At this time, the card block slides normally in the card slot one, and the card plate will produce a slight deformation due to entering the curved part of the card slot two. The stress generated by the deformation will dock the umbrella skirts on both sides together. At this time, the connection of the umbrella skirt will also be wrapped by the upper sealing ring and the lower sealing ring to achieve sealing. At the same time, the docking ring will also dock at the docking groove position of the sleeve, and the card ball will be squeezed. At the same time, the card ball will drive the slider to apply pressure to the spring under the restriction of the limit block. Through the reaction force of the spring, the card ball is always against the position of the sleeve, so that the umbrella skirt receives another reverse stress, making it difficult for the umbrella skirt to slide out of the docking direction.

[0021] The present invention provides a new type of transformer bushing for power transformation, which has the following beneficial effects:

[0022] 1. The present invention achieves rapid docking between the sheds through the use of clamping blocks without the need for bolts, so that the sheds can be flexibly arranged according to needs, and the sheds can also be conveniently disassembled and replaced during equipment maintenance, thereby improving the flexibility and applicability of the equipment.

[0023] 2. The present invention applies pressure to the card ball through the spring, so that the docking position between the umbrella skirts is affected by other stress directions and is fixed more firmly. At the same time, the sealing rubber ring installed by extrusion at the docking ring position will also be installed more firmly due to the force of the card ball, thereby improving the stability and sealing of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A perspective view of the present invention;

[0025] Figure 2 It is a structural explosion diagram of the present invention;

[0026] Figure 3 It is an exploded bottom view of the structure of the present invention;

[0027] Figure 4 It is a schematic diagram of a sleeve of the present invention;

[0028] Figure 5 It is a schematic diagram of the second card slot of the present invention;

[0029] Figure 6 It is a schematic diagram of the docking ring of the present invention.

[0030] Among them, 1. sleeve; 2. flange; 3. umbrella skirt; 4. clamping block; 5. clamping plate; 6. clamping slot 1; 7. clamping slot 2; 8. upper sealing ring; 9. lower sealing ring; 10. docking ring; 11. docking slot; 12. spring; 13. slider; 14. clamping ball; 15. limit block. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0032] Please see attached Figure 1 -Attached Figure 5 , an embodiment of the present invention provides a new type of transformer bushing for power transformation, including.

[0033] The outer wall of the sleeve 1 is provided with a plurality of sheds 3 of different sizes;

[0034] A clamping block 4 is installed on one side of the shed 3 and is used for clamping the sheds 3;

[0035] A flange 2 is installed at the bottom of the sleeve 1 and is used for installing the sleeve 1;

[0036] A clamping plate 5, which is installed on one side of the shed 3 and is used to fix the position between the sheds 3;

[0037] A sealing assembly, which is installed outside the shed 3 and is used to seal the connection of the shed 3;

[0038] An auxiliary docking assembly, which is installed on one side of the shed 3 and is used to strengthen the strength of the shed 3 after docking;

[0039] The sealing assembly includes an upper sealing ring 8, a lower sealing ring 9 is arranged at the bottom of the upper sealing ring 8, and the upper sealing ring 8 and the lower sealing ring 9 are both arranged between the umbrella skirt 3;

[0040] One side of the shed 3 is provided with a card slot 1 6, and the other side of the shed 3 is provided with a card slot 2 7;

[0041] The clamping block 4 is embedded in the first clamping slot 6 , and the clamping plate 5 is embedded in the second clamping slot 7 .

[0042] Specifically, when the umbrella skirts 3 are freely combined, the umbrella skirts 3 on both sides need to be approached to the installation center at a slight tilt angle, and slowly approached to the position of the sleeve 1, so that they are surrounded by the two umbrella skirts 3. In this process, it is ensured that the umbrella skirts 3 on both sides can be accurately docked, so as to prepare for the next locking operation. When the umbrella skirts 3 on both sides successfully contact the sleeve 1, the clamping block 4 will naturally embed into the clamping groove 1 6, and the initial locking is achieved. At this time, the clamping plate 5 just enters the straight area in the clamping groove 2 7, making the initial docking more stable. After the initial docking is completed, the umbrella skirts 3 on both sides can be further slowly approached so that the umbrella skirts 3 gradually contact closely in the axial direction. As the clamping block 4 slides in the clamping groove 1 6, the clamping plate 5 also gradually enters the curved part of the clamping groove 2 7, and produces a slight deformation due to the bending. The stress caused by this deformation prompts the umbrella skirts 3 on both sides to achieve a tighter connection, forming a stable docking structure. At the same time as docking, the connection of the umbrella skirt 3 is also fully wrapped by the upper sealing ring 8 and the lower sealing ring 9, thereby forming a tight sealing effect, ensuring the isolation of the internal structure from the external environment, and effectively improving the sealing performance and durability of the device.

[0043] Please see attached Figure 6 The umbrella skirt 3 is arranged in multiple layers, and the heights decrease successively. The auxiliary docking assembly comprises a docking ring 10, which is fixed on one side of the umbrella skirt 3. A spring 12 is arranged inside the docking ring 10, and a slider 13 is fixed on one end of the spring 12. The slider 13 slides inside the docking ring 10. A card ball 14 is arranged on one side of the slider 13. A limiting block 15 is fixed on the outer wall of the card ball 14. A docking groove 11 is opened on the outer wall of the sleeve 1, and the docking ring 10 is embedded in the docking groove 11.

[0044] Specifically, when the docking ring 10 and the sleeve 1 are docked, the docking ring 10 is precisely aligned with the docking groove 11 on the sleeve 1 to ensure a tight fit. During the docking process, the card ball 14 is squeezed from the surface of the sleeve 1. At the same time, the card ball 14 is limited by the limit block 15 and has a limited range of controlled movement, thereby avoiding excessive sliding. Under the control of the limit block, the card ball 14 drives the slider 13 to move backward, so that the slider 13 applies pressure to the spring 12, thereby causing the spring 12 to produce a certain compression deformation and store elastic energy. At this time, the spring 12 further transmits the force back to the card ball 14 through its reaction force, so that the card ball 14 stably supports the surface of the sleeve 1. Through the support of this reaction force, the card ball 14 is always in a stressed state, effectively maintaining continuous contact and support with the sleeve 1. This support effect not only enhances the stability of the umbrella skirt 3 during docking, but also provides additional reverse stress for the umbrella skirt 3, making it difficult for it to slide or disengage in the original docking direction. By means of the synergistic effect of the spring 12 and the locking ball 14, the docking structure further obtains a strong locking effect, ensuring that the connection position of the umbrella skirt 3 is stable and immovable, thereby providing a lasting fixing force and anti-slip property in a dynamic environment, and effectively enhancing the safety and sealing performance of the entire device.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of transformer bushing for power transformation, characterized in that: include: A sleeve (1) having an outer wall provided with a plurality of umbrella skirts (3) of different sizes; A clamping block (4) is mounted on one side of the umbrella skirt (3) and is used for clamping the umbrella skirts (3); A flange (2) is mounted on the bottom of the sleeve (1) and is used for mounting the sleeve (1); A clamping plate (5) is installed on one side of the umbrella skirt (3) and is used to fix the position between the umbrella skirts (3); A sealing assembly, which is mounted on the outside of the umbrella skirt (3) and is used to seal the connection of the umbrella skirt (3); An auxiliary docking assembly is installed on one side of the shed (3) and is used to enhance the strength of the shed (3) after docking.

2. A new transformer bushing for power transformation according to claim 1, characterized in that: The sealing assembly comprises an upper sealing ring (8), a lower sealing ring (9) is arranged at the bottom of the upper sealing ring (8), and an umbrella skirt (3) is arranged between the upper sealing ring (8) and the lower sealing ring (9).

3. The new transformer bushing for power transformation according to claim 1 is characterized in that: The umbrella skirt (3) on one side is provided with a first clamping slot (6), and the umbrella skirt (3) on the other side is provided with a second clamping slot (7).

4. The new transformer bushing for power transformation according to claim 1 is characterized in that: The card block (4) is embedded in the first card slot (6), and the card plate (5) is embedded in the second card slot (7).

5. The new transformer bushing for power transformation according to claim 1 is characterized in that: The umbrella skirt (3) is arranged in multiple layers, and the heights decrease successively.

6. The new transformer bushing for power transformation according to claim 1 is characterized in that: The auxiliary docking assembly comprises a docking ring (10), wherein the docking ring (10) is fixed on one side of the shed (3), a spring (12) is arranged inside the docking ring (10), and a slider (13) is fixed to one end of the spring (12).

7. A new type of transformer bushing for power transformation according to claim 6, characterized in that: The slide block (13) slides inside the docking ring (10), a locking ball (14) is provided on one side of the slide block (13), and a limiting block (15) is fixed on the outer wall of the locking ball (14).

8. The new transformer bushing for power transformation according to claim 6 is characterized in that: The outer wall of the sleeve (1) is provided with a docking groove (11), and the docking ring (10) is embedded in the docking groove (11).

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