An outdoor composite insulated instrument transformer sealing assembly with a stop positioning structure

Abstract

This invention discloses an outdoor composite insulated current transformer sealing assembly with a stop positioning structure. The invention relates to the field of sealing technology. The wrapping ring consists of two semi-arc blocks joined together. A first fixing block is mounted on the wrapping ring, and the wrapping ring is fixedly connected to the first fixing block, allowing the wrapping ring to wrap around the outside of the current transformer, providing a support point for subsequent component connections. Secondly, the connecting device adopts the same structure as the wrapping ring, wrapping the lower side of the current transformer. The connecting device is adapted to the wrapping ring, supporting and limiting the shielding device, thereby achieving the function of covering and shielding the current transformer, thus realizing the sealing operation. A friction ring is located on the upper side of the wrapping ring, adopting a gradually changing structure that is narrower at the top and wider at the bottom, thereby increasing the friction force on the outside of the current transformer. When rainwater enters, it plays a guiding role, reducing the amount of rainwater residue and preventing rainwater penetration.

Description

Technical Field

[0001] This invention relates to the field of sealing technology, specifically to an outdoor composite insulating current transformer sealing assembly with a stop positioning structure. Background Technology

[0002] In outdoor high-voltage power transmission and transformation systems, composite-insulated instrument transformers are core devices for voltage and current signal conversion. Their sealing performance directly affects equipment reliability and power grid safety. However, traditional outdoor instrument transformer sealing components generally use single-layer silicone rubber rings or simple nested structures. Existing sealing components are mostly single-layer rubber rings that seal independently, relying on the elastic deformation of a single material to fill gaps. When encountering extreme temperature differences from -40℃ to 80℃, the rubber is prone to stress relaxation due to thermal expansion and contraction, resulting in a decrease in the sealing surface fit. Especially under mechanical vibration conditions, the single-layer structure is difficult to evenly distribute stress, and local excessive deformation or displacement is likely to occur, forming leakage channels. After long-term operation, traditional sealing components are prone to sealing failure due to aging and deformation, which in turn leads to moisture inside the instrument transformer, a decrease in insulation performance, and even short-circuit accidents.

[0003] In existing technologies, outdoor composite insulated transformer sealing assemblies with stop-positioning structures have narrow gaps at the nesting positions during operation, making it easy for insects and dust to accumulate and become difficult to clean. Long-term accumulation can damage the sealing surface fit and accelerate seal failure. Under alternating hot and cold conditions, stress concentration occurs at the stop-positioning point, and long-term repeated expansion and contraction can easily cause cracking of the stepped part of the rubber sealing ring, shortening the seal's service life. Therefore, a new design has been developed to address these issues. Summary of the Invention

[0004] To address the problems mentioned above, the present invention provides the following technical solution: an outdoor composite insulating instrument transformer sealing assembly with a stop-positioning structure, comprising: The wrapping ring has an elliptical block structure. The wrapping ring is composed of two semi-arc blocks. A connecting groove is provided at the bottom of the wrapping ring. A shielding device is plugged into the bottom of the connecting groove. A connecting device is plugged into the side of the shielding device away from the wrapping ring. A friction ring is fixedly connected to the upper side of the wrapping ring. The first fixing block has a square block structure. The first fixing block is fixedly connected to the outside of the wrapping ring. A protective device is provided on the outside of the first fixing block. The protective device includes: The first protective housing has an arc-shaped housing structure, and a positioning block is fixedly connected to one side of the outer side of the first protective housing; The second protective housing has a positioning groove at a position corresponding to the positioning block. The positioning groove is pluggable and adaptable to the positioning block. Both the first and second protective housings have ventilation holes at their bottoms.

[0005] The protective device also includes: A perforated plate is disposed inside the air vent, and the outer side of the perforated plate is fixedly connected to the lower side of the inner wall of the air vent. The lower conical tube has a conical shell structure. The outer side of the lower conical tube is fixedly connected to the inner side of the vent. An upper conical tube is fixedly connected to the upper side of the inner wall of the vent. The upper conical tube and the lower conical tube are respectively arranged with their contraction openings corresponding to each other.

[0006] Both the first protective shell and the second protective shell are fixedly connected to an outer shell, and an extrusion mechanism is slidably connected to the outer shell.

[0007] The extrusion mechanism includes an extrusion support rod, which is slidably connected to an outer housing. A preventive plate is fixedly connected to one end of the extrusion support rod, and an extrusion housing is fixedly connected to the other end of the extrusion support rod. A spring strip is sleeved on the side of the extrusion support rod near the extrusion housing.

[0008] A first silicone plate is fixedly connected to one side of the inner wall of the extrusion housing, and a second silicone plate is fixedly connected to the side of the inner wall of the extrusion housing away from the first silicone plate.

[0009] The connecting device includes a connecting housing, and two connecting housings are provided. A second fixing block is fixedly connected to the outer side of each of the two connecting housings. A connecting block is inserted into the slot of the connecting housing. A fitting ring is fixedly connected to one side of the outer side of the connecting block. A sealing ring is fixedly connected to the top of the fitting ring. A block surface cut is opened on the other side of the outer side of the connecting block.

[0010] A limiting ring is fixedly connected to the bottom of the connecting housing, and an outer ring is fixedly connected to the outer side of the fitting ring at a position corresponding to the limiting ring. The limiting ring and the outer ring are snapped together and adapted.

[0011] The second fixing block includes a plug-in end and a receiving end. A conical block is fixedly connected to the outside of the plug-in end near the receiving end. A block surface groove is opened on the outside of the conical block. A limiting block is snapped into the inside of the block surface groove. A limiting piece is fixedly connected to the outside of the limiting block away from the block surface groove.

[0012] The shielding device includes a shielding frame, an anti-detachment groove is provided on the upper outer side of the shielding frame, and a first reinforcing ring and a second reinforcing ring are fixedly connected to the outer side of the shielding frame, and a first shielding plate and a second shielding plate are fixedly connected to the first reinforcing ring and the second reinforcing ring, respectively.

[0013] The bottom sides of the shielding frame are fixedly connected to a limiting frame and a stop frame, respectively. Inside the stop frame, on the side corresponding to the limiting frame, a limiting frame is fixedly connected.

[0014] This invention provides an outdoor composite insulated instrument transformer sealing assembly with a stop-positioning structure. It has the following advantages: I. The outdoor composite insulated transformer sealing assembly with a stop-positioning structure uses a first protective shell and a second protective shell to seal the transformer in contact with the connecting device, wrapping ring, and shielding device. This wraps and shields the components, reducing rainwater erosion, blocking direct sunlight, slowing down component aging, and extending component lifespan. The first protective shell is inserted into the positioning groove of the second protective shell via a positioning block, achieving rapid fixation and improving installation speed. Furthermore, ventilation holes and grooves are provided at the bottom of both the first and second protective shells to reduce rainwater ingress and provide some heat dissipation, preventing excessive internal temperature from affecting the sealing performance of the components.

[0015] II. The sealing assembly of this outdoor composite insulated current transformer with a stop positioning structure has a mesh plate that prevents external impurities or insects from entering, thus preventing them from affecting the operation of the component and avoiding affecting the sealing effect. The lower tapered tube is narrower at the top and wider at the bottom, while the upper tapered tube is wider at the top and narrower at the bottom. The two tapered tubes are arranged in a mirror image to achieve the effect of misalignment of the tube openings, thereby achieving a certain waterproof effect.

[0016] Third, the sealing assembly of the outdoor composite insulated current transformer with a stop positioning structure has its outer shell wrapped with the first and second fixing blocks, thereby restricting the components, preventing them from shifting or twisting, and reducing the impact of the outdoor environment on the equipment.

[0017] IV. The sealing assembly of the outdoor composite insulated current transformer with a stop positioning structure, when the first protective shell and the second protective shell wrap and connect to the equipment, the first fixing block and the second fixing block squeeze the extrusion shell, causing the extrusion shell to drive the extrusion support rod to squeeze and contract the spring strip, thereby playing a role in shock absorption and buffering, reducing the amplitude of outdoor operation of the component, improving the stability of the component, and at the same time, the spring strip supports the extrusion support rod, thereby achieving the function of clamping and fixing the component, further improving the stability of the equipment, preventing the plate and the extrusion shell from limiting the extrusion support rod, and controlling the sliding range of the component.

[0018] 5. The outdoor composite insulated transformer sealing assembly with a stop positioning structure has a first silicone plate and a second silicone plate that squeeze and wrap the first fixing block and the second fixing block from both sides. This reduces wear between components and extends their service life, while also improving the buffering and shock absorption effect. At the same time, the outer side of the second silicone plate has a protruding structure that fits into the first and second fixing blocks, thereby further improving the stability of the components and preventing loosening at the connection. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the protective device structure of the present invention; Figure 2 This is a schematic diagram of the second fixing block structure of the present invention; Figure 3 This is a schematic diagram of the bonding ring structure of the present invention; Figure 4 This is a schematic diagram of the outer ring structure of the present invention; Figure 5 This is a schematic diagram of the limiting sheet structure of the present invention; Figure 6 This is a schematic diagram of the shielding frame structure of the present invention; Figure 7 This is a schematic diagram of the external housing structure of the present invention; Figure 8 This is a schematic diagram of the upper conical tube structure of the present invention; Figure 9 This is a schematic diagram of the perforated plate structure of the present invention.

[0020] In the diagram: 1. Connecting device; 2. Enclosing ring; 3. Shielding device; 4. Protective device; 5. Friction ring; 6. Connecting groove; 7. First fixing block; 11. Connecting housing; 12. Second fixing block; 13. Fitting ring; 14. Sealing ring; 15. Connecting block; 16. Outer ring; 17. Restricting ring; 18. Block face notch; 121. Insertion end; 122. Conical block; 123. Receiving end; 124. Block face groove; 125. Restricting piece; 126. Restricting block; 31. Shielding frame; 32. First reinforcing ring; 33. Second reinforcing ring; 34. 35. Anti-detachment groove; 36. Stop frame; 37. Restriction frame; 38. Limiting frame; 39. First shield; 401. First protective shell; 402. Second protective shell; 403. External shell; 404. Positioning block; 405. Positioning groove; 406. Extrusion mechanism; 407. Vent; 408. Mesh plate; 409. Upper conical tube; 410. Lower conical tube; 4061. Extrusion support rod; 4062. Extrusion shell; 4063. Spring strip; 4064. Anti-blocking plate; 4065. First silicone plate; 4066. Second silicone plate. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] First embodiment, such as Figures 1 to 3 As shown, the present invention provides a technical solution: an outdoor composite insulating instrument transformer sealing assembly with a stop-positioning structure, comprising: The wrapping ring 2 has an elliptical block structure. The wrapping ring 2 is composed of two semi-arc blocks. A connecting groove 6 is opened at the bottom of the wrapping ring 2. A shielding device 3 is inserted and plugged into the bottom of the connecting groove 6. A connecting device 1 is inserted and plugged into the side of the shielding device 3 away from the wrapping ring 2. A friction ring 5 is fixedly connected to the upper side of the wrapping ring 2. The first fixing block 7 has a square block structure and is fixedly connected to the outside of the wrapping ring 2. A protective device 4 is provided on the outside of the first fixing block 7. The wrapping ring 2 is composed of two semi-arc blocks joined together. The first fixing block 7 is set on the wrapping ring 2, and the wrapping ring 2 is fixedly connected through the first fixing block 7, so that the wrapping ring 2 wraps the outside of the transformer and provides a support point for the subsequent component connection. Next, the connecting device 1 adopts the same structure as the wrapping ring 2 and wraps the lower side of the transformer. The connecting device 1 and the wrapping ring 2 are adapted to each other and support and limit the shielding device 3, thereby achieving the function of covering and shielding the transformer, thus realizing the sealing operation of the transformer. The friction ring 5 is set on the upper side of the wrapping ring 2 and adopts a gradient structure that is narrow at the top and wide at the bottom, thereby increasing the friction force on the outside of the transformer. When rainwater enters, it plays a guiding role, reducing the amount of rainwater residue, preventing rainwater penetration, protecting the signal transmission accuracy, avoiding the risk of leakage, breakdown and moisture failure, and adapting to long-term reliable outdoor operation. The connecting groove 6 is used to connect with the shielding device 3.

[0023] The second embodiment is based on the first embodiment; please refer to [link / reference]. Figures 2 to 6As shown, the connecting device 1 includes a connecting housing 11. There are two connecting housings 11. A second fixing block 12 is fixedly connected to the outside of each of the two connecting housings 11. A connecting block 15 is inserted and pulled into the slot of the connecting housing 11. A fitting ring 13 is fixedly connected to one side of the connecting block 15. A sealing ring 14 is fixedly connected to the top of the fitting ring 13. A block surface cutout 18 is opened on the other side of the connecting block 15. Two connecting housings 11 are fixed to the current transformer by the second fixing block 12, providing support points for the installation of the sealing equipment. The fitting ring 13 and the sealing ring 14 are fitted to the outside of the current transformer, which on the one hand increases the sealing effect of the components, prevents moisture and debris from entering, and is suitable for various complex outdoor environments, effectively extending the service life of the sealing components and ensuring the long-term stable operation of the current transformer. On the other hand, it increases the friction between the connecting housing 11 and the outside of the current transformer, improving the fixing effect of the components. The fitting ring 13 and the sealing ring 14 are designed separately like the connecting housing 11. A connecting block 15 is set on the outside of the fitting ring 13. The connecting block 15 is inserted into the hole groove of the connecting housing 11 to achieve the function of quick installation of components and facilitate the replacement of components. At the same time, by opening the block surface cut 18, the deformation range of the connecting block 15 is increased, which facilitates the insertion and removal of components.

[0024] A limiting ring 17 is fixedly connected to the bottom of the connecting housing 11. An outer connecting ring 16 is fixedly connected to the outside of the fitting ring 13 at a position corresponding to the limiting ring 17. The limiting ring 17 and the outer connecting ring 16 are snap-fitted together. The outer connecting ring 16 is located outside the fitting ring 13. When the fitting ring 13 is fixed to the connecting housing 11 by the connecting block 15, the outer connecting ring 16 and the limiting ring 17 are in contact, increasing the contact area between the components. The limiting ring 17 supports the outer connecting ring 16, maintaining the stability between the components.

[0025] The second fixing block 12 includes a plug-in end 121 and a receiving end 123. A conical block 122 is fixedly connected to the outside of the plug-in end 121 near the receiving end 123. A block surface groove 124 is opened on the outside of the conical block 122. A limiting block 126 is snapped into the inside of the block surface groove 124. A limiting piece 125 is fixedly connected to the outside of the limiting block 126 away from the block surface groove 124. Two connecting housings 11 are respectively connected to the insertion end 121 and the receiving end 123. The insertion end 121 controls the conical block 122 to be inserted into the slot of the receiving end 123. The conical block 122 is compressed and deformed appropriately. After the conical block 122 enters the receiving end 123, the conical block 122 rebounds, thereby locking the conical block 122 onto the receiving end 123, thus achieving the function of fixing the component. A block surface groove 124 is opened on the outer side of the conical block 122, and a limiting block 126 is provided on the inner side of the limiting piece 125. The limiting piece 125 is sleeved on the conical block 122, so that the limiting block 126 is inserted into the inner side of the block surface groove 124, thereby playing the role of fixing the locking component. On the basis of the original fixation, the stability of the component is further strengthened.

[0026] The shielding device 3 includes a shielding frame 31. An anti-detachment groove 35 is provided on the upper outer side of the shielding frame 31. A first reinforcing ring 32 and a second reinforcing ring 33 are fixedly connected to the outer side of the shielding frame 31. A first shielding plate 39 and a second shielding plate 34 are fixedly connected to the first reinforcing ring 32 and the second reinforcing ring 33, respectively. The shielding device 3 adopts a multi-layer stacked structure design to achieve the shielding effect on the current transformer, thus protecting it. The first reinforcing ring 32 and the second reinforcing ring 33 reinforce the first shielding plate 39 and the second shielding plate 34, respectively, improving the connection effect of the components. The first shielding plate 39 and the second shielding plate 34 shield and guide rainwater, facilitating rainwater flow and reducing rainwater retention.

[0027] The bottom sides of the shielding frame 31 are fixedly connected to a limiting frame 37 and a stop frame 36, respectively. Inside the stop frame 36, on the side corresponding to the limiting frame 37, a limiting frame 38 is fixedly connected. The limiting frame 37 and the stop frame 36 form a constraint space. When the shielding devices 3 are stacked, the anti-detachment groove 35 part of the shielding frame 31 is inserted into the limiting frame 38 part, so as to stack them back and forth as needed. Through the engagement and locking of the anti-detachment groove 35 and the limiting frame 38, the components are quickly connected. At the same time, the engagement and locking further improves the stability of the components during installation, reduces dead corners of the components, and improves the sealing and protection effect between the components.

[0028] The third embodiment is based on embodiments one and two; please refer to [link / reference]. Figures 7 to 9 As shown, the protective device 4 includes: The first protective housing 401 has an arc-shaped housing structure, and a positioning block 404 is fixedly connected to one side of the outer side of the first protective housing 401. The second protective housing 402 has a positioning groove 405 corresponding to the positioning block 404. The positioning groove 405 and the positioning block 404 are pluggable and pluggable. Both the first protective housing 401 and the second protective housing 402 have vents 407 at their bottoms. In the contact of the connecting device 1, the wrapping ring 2, and the shielding device 3 to seal the transformer, the first protective housing 401 and the second protective housing 402 are connected to wrap and shield the components, thereby reducing rainwater erosion, blocking direct sunlight, slowing down component aging, and extending the service life of the components. The first protective housing 401 is plugged into the positioning groove 405 of the second protective housing 402 through the positioning block 404, thereby achieving quick fixing and improving the installation speed of the components. Furthermore, the vents 407 at the bottom of the first protective housing 401 and the second protective housing 402, along with the grooves at the bottom, reduce rainwater ingress and also provide a certain degree of heat dissipation, preventing excessive internal temperature from affecting the sealing performance of the components.

[0029] Protective device 4 also includes: A perforated plate 408 is disposed inside the vent 407, and the outer side of the perforated plate 408 is fixedly connected to the lower side of the inner wall of the vent 407. The lower conical tube 410 has a conical shell structure. The outer side of the lower conical tube 410 is fixedly connected to the inner side of the vent 407. An upper conical tube 409 is fixedly connected to the upper inner wall of the vent 407. The upper conical tube 409 is correspondingly positioned to the contraction opening of the lower conical tube 410. The mesh plate 408 serves to block external impurities or insects from entering, preventing them from affecting the component's operational performance and sealing effect. The lower conical tube 410 is narrower at the top and wider at the bottom, while the upper conical tube 409 is wider at the top and narrower at the bottom. The two conical tubes are arranged in a mirror image to achieve a staggered pipe opening, thus providing a certain degree of waterproofing.

[0030] Both the first protective housing 401 and the second protective housing 402 are fixedly connected to an outer housing 403, and a pressing mechanism 406 is slidably connected to the outer side of the outer housing 403. The outer housing 403 encloses the first fixing block 7 and the second fixing block 12, thereby restricting the components, preventing them from shifting or twisting, and reducing the impact of the outdoor environment on the equipment.

[0031] The extrusion mechanism 406 includes an extrusion support rod 4061, which is slidably connected to the outer housing 403. A preventive plate 4064 is fixedly connected to one end of the extrusion support rod 4061, and an extrusion housing 4062 is fixedly connected to the other end. A spring strip 4063 is sleeved on the side of the extrusion support rod 4061 near the extrusion housing 4062. When the first protective housing 401 and the second protective housing 402 enclose and connect with the equipment, the first fixing block 7 and the second fixing block 12 extrude pressure on the extrusion housing 4062. This causes the extrusion housing 4062 to drive the extrusion support rod 4061 to compress and contract the spring strip 4063, thereby providing shock absorption and buffering, reducing the amplitude of vibration during outdoor operation, and improving the stability of the component. Simultaneously, the spring strip 4063 supports the extrusion support rod 4061, thereby clamping and fixing the component, further improving the stability of the equipment. The preventive plate 4064 and the extrusion housing 4062 limit the movement of the extrusion support rod 4061, controlling the sliding range of the component.

[0032] A first silicone plate 4065 is fixedly connected to one side of the inner wall of the extrusion housing 4062, and a second silicone plate 4066 is fixedly connected to the side of the inner wall of the extrusion housing 4062 away from the first silicone plate 4065. The first silicone plate 4065 and the second silicone plate 4066 compress and wrap the first fixing block 7 and the second fixing block 12 from both sides. This reduces wear between components and extends their service life, while also improving the cushioning and shock absorption effect of the components. At the same time, the outer side of the second silicone plate 4066 is provided with a protruding structure, which fits into the first fixing block 7 and the second fixing block 12 to further improve the stability of the components and prevent loosening at the connection.

[0033] In use, a first fixing block 7 is set on the outside of the wrapping ring 2, and a second fixing block 12 is set inside the connecting device 1. The two adopt a mirror symmetrical structure design, and the components are connected by mirror symmetry to achieve quick connection of the equipment. Secondly, the shielding device 3 adopts a stacking structure design, and the number of stacks is controlled according to the sealing requirements of the current transformer. At the same time, the shielding device 3 can adopt a symmetrical structure like the connecting device 1, a split design, in which the shielding device 3 wraps and seals from both sides of the current transformer, or an integral design, in which it fits and seals from the current transformer. The sealing component isolates outdoor moisture, dust and corrosive media, while relying on the composite insulation body to achieve electrical isolation, stably ensuring that the internal sensing elements are not affected by the external environment, continuously maintaining insulation performance and measurement and protection signal transmission accuracy, avoiding the risks of leakage, breakdown and moisture failure, and is suitable for long-term reliable outdoor operation. During installation, the connecting device 1 is first fitted and fixed to the sealing position of the current transformer to provide a support point for the installation of subsequent components. Secondly, the shielding device 3 adopts a split design and covers and wraps the current transformer from both sides. The bottom of the shielding device 3 is plugged and matched with the top of the connecting device 1. Alternatively, the shielding device 3 adopts an integral design and is fitted from the top of the current transformer. Then, the bottom of the shielding device 3 is plugged and matched with the top of the connecting device 1. The wrapping ring 2 is installed according to the height of the shielding device 3. When installing the wrapping ring 2, the bottom of the wrapping ring 2 is inserted and unplugged to fit the top of the shielding device 3, so as to fix and support the shielding device 3 through the wrapping ring 2 and the connecting device 1. After the above components are installed, considering that outdoor rain or sun exposure can easily cause the components to dry and crack, oxidize, and affect the service life of the equipment, protective device 4 is used to cover and wrap the equipment to further improve the protection effect of the equipment, extend the service life of the equipment, and ensure the sealing effect of the current transformer.

[0034] Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

Claims

1. An outdoor composite insulated instrument transformer sealing assembly with a stop-positioning structure, characterized in that, include: The wrapping ring (2) has an elliptical block structure. The wrapping ring (2) is composed of two semi-arc blocks. A connecting groove (6) is provided at the bottom of the wrapping ring (2). A shielding device (3) is inserted and adapted at the bottom of the connecting groove (6). A connecting device (1) is inserted and adapted on the side of the shielding device (3) away from the wrapping ring (2). A friction ring (5) is fixedly connected to the upper side of the wrapping ring (2). The first fixing block (7) has a square block structure. The first fixing block (7) is fixedly connected to the outside of the wrapping ring (2). A protective device (4) is provided on the outside of the first fixing block (7). The protective device (4) includes: The first protective housing (401) has an arc-shaped housing structure, and a positioning block (404) is fixedly connected to one side of the outside of the first protective housing (401). The second protective housing (402) has a positioning groove (405) at a position corresponding to the positioning block (404). The positioning groove (405) and the positioning block (404) are plugged and matched. The bottom of the first protective housing (401) and the second protective housing (402) are both provided with a vent (407).

2. The sealing assembly for an outdoor composite insulating current transformer with a stop-positioning structure according to claim 1, characterized in that: The protective device (4) also includes: A perforated plate (408) is disposed inside the vent (407), and the outer side of the perforated plate (408) is fixedly connected to the lower side of the inner wall of the vent (407). The lower conical tube (410) has a conical shell structure. The outer side of the lower conical tube (410) is fixedly connected to the inner side of the vent (407). An upper conical tube (409) is fixedly connected to the upper side of the inner wall of the vent (407). The upper conical tube (409) is correspondingly set with the contraction opening of the lower conical tube (410).

3. The sealing assembly for an outdoor composite insulating current transformer with a stop-positioning structure according to claim 1, characterized in that: Both the first protective shell (401) and the second protective shell (402) are fixedly connected to an outer shell (403), and an extrusion mechanism (406) is slidably connected to the outer shell (403).

4. The sealing assembly for an outdoor composite insulated instrument transformer with a stop-positioning structure according to claim 3, characterized in that: The extrusion mechanism (406) includes an extrusion support rod (4061), which is slidably connected to an outer housing (403). A preventive plate (4064) is fixedly connected to one end of the extrusion support rod (4061), and an extrusion housing (4062) is fixedly connected to the other end of the extrusion support rod (4061). A spring strip (4063) is sleeved on the side of the extrusion support rod (4061) near the extrusion housing (4062).

5. The sealing assembly for an outdoor composite insulating current transformer with a stop positioning structure according to claim 4, characterized in that: A first silicone plate (4065) is fixedly connected to one side of the inner wall of the extrusion shell (4062), and a second silicone plate (4066) is fixedly connected to the side of the inner wall of the extrusion shell (4062) away from the first silicone plate (4065).

6. The sealing assembly for an outdoor composite insulating current transformer with a stop-positioning structure according to claim 1, characterized in that: The connecting device (1) includes a connecting housing (11), and two connecting housings (11) are provided. A second fixing block (12) is fixedly connected to the outside of each of the two connecting housings (11). A connecting block (15) is inserted and pulled into the slot of the connecting housing (11). A fitting ring (13) is fixedly connected to one side of the connecting block (15). A sealing ring (14) is fixedly connected to the top of the fitting ring (13). A block surface cutout (18) is opened on the other side of the connecting block (15).

7. The sealing assembly for an outdoor composite insulating current transformer with a stop-positioning structure according to claim 6, characterized in that: A limiting ring (17) is fixedly connected to the bottom of the connecting housing (11), and an outer ring (16) is fixedly connected to the outside of the fitting ring (13) at a position corresponding to the limiting ring (17). The limiting ring (17) and the outer ring (16) are snapped together and adapted.

8. The sealing assembly for an outdoor composite insulating current transformer with a stop-positioning structure according to claim 6, characterized in that: The second fixing block (12) includes a plug-in end (121) and a receiving end (123). A conical block (122) is fixedly connected to the outside of the plug-in end (121) near the receiving end (123). A block surface groove (124) is opened on the outside of the conical block (122). A limiting block (126) is snapped into the inside of the block surface groove (124). A limiting piece (125) is fixedly connected to the outside of the limiting block (126) away from the block surface groove (124).

9. The sealing assembly for an outdoor composite insulating current transformer with a stop-positioning structure according to claim 1, characterized in that: The shielding device (3) includes a shielding frame (31), and an anti-detachment groove (35) is provided on the upper side of the shielding frame (31). A first reinforcing ring (32) and a second reinforcing ring (33) are fixedly connected to the outer side of the shielding frame (31). A first shielding plate (39) and a second shielding plate (34) are fixedly connected to the first reinforcing ring (32) and the second reinforcing ring (33).

10. The sealing assembly for an outdoor composite insulating current transformer with a stop-positioning structure according to claim 9, characterized in that: The bottom sides of the shielding frame (31) are respectively fixedly connected to a limiting frame (37) and a stop frame (36), and a limit frame (38) is fixedly connected to the side of the stop frame (36) corresponding to the limiting frame (37).

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