Pressing tool for sealing sleeve core body and flange

Abstract

The utility model relates to a pressing tool for sealing a sleeve core body and a flange, which comprises a pressing ring detachably connected with the flange, the pressing ring is movably connected with a plurality of pressing plates, the plurality of pressing plates are arranged at intervals along the circumferential direction of the pressing ring, and the pressing plates move along the radial direction of the pressing ring and are contacted with the top surface of an upper boss of the sleeve core body. When in use, the pressing ring is fixedly connected with the flange, and the pressing plate moves in the radial direction, so that the distance between the pressing plate and the sleeve core body can be adjusted according to the size of the sleeve core body, the pressing plate can press upper bosses of the sleeve core bodies of different specifications, and the sleeve core body pressing device is suitable for the sleeve core bodies of various specifications, is more convenient to use and saves cost.

Description

Technical Field

[0001] This utility model relates to the field of sleeve flange sealing technology, specifically to a clamping tool for sealing a sleeve core with a flange. Background Technology

[0002] Currently, the sealing method between the resin-impregnated fiber dry bushing core and the aluminum flange is usually achieved by using a sealing ring. This sealing structure requires the bushing core to be pressed against the sealing ring using special tooling to achieve a seal between the bushing core and the flange.

[0003] For example, patent CN221812046U discloses a transformer bushing flange fixing and sealing structure, including a core body, a flange sleeved on the outside of the core body, a flange pressure ring snapped on the flange for pressing the core body, an upper boss and a lower boss on the core body, a sealing ring movably snapped between the flange and the lower boss, and epoxy potting compound injected between the flange and the core body.

[0004] In this patent, the flange pressure ring is the clamping fixture, which presses the core body against the sealing ring to achieve a seal. However, since the core body dimensions of bushings of different voltage levels are inconsistent, each type of bushing core body requires a special-sized clamping fixture to achieve clamping. This results in the clamping fixture not being universal, leading to high processing costs. Furthermore, operators need to find the corresponding size fixture based on the bushing specifications before they can operate, making it inconvenient to use. Utility Model Content

[0005] This utility model addresses the shortcomings of existing technologies by providing a clamping tool for sealing the sleeve core and flange, which is applicable to various specifications of sleeves, easy to use, and cost-effective.

[0006] This utility model is achieved through the following technical solution: a clamping tool for sealing a sleeve core and a flange, including a pressure ring detachably connected to the flange, a plurality of pressure plates movably connected to the pressure ring, the plurality of pressure plates being arranged at intervals along the circumference of the pressure ring, the pressure plates moving radially along the pressure ring and contacting the top surface of the upper boss of the sleeve core.

[0007] When using this solution, the pressure ring and flange are fixed together, and the pressure plate moves radially. This allows the distance between the pressure plate and the casing core to be adjusted according to the size of the casing core, so that the pressure plate can press the upper boss of casing cores of different specifications. It is applicable to various specifications of casing cores, making it more convenient to use and saving costs.

[0008] As an optimization, the axes of multiple pressure plates intersect at the center of the pressure ring. This optimization scheme makes the moving path of the pressure plates intersect with the axis of the sleeve core.

[0009] As an optimization, the number of pressure plates is at least three. This optimization scheme ensures the effective clamping of the sleeve core.

[0010] As an optimization, the pressure plate has a downwardly protruding block at one end near the inner side of the pressure ring. This optimization solution concentrates the force by having the protruding block contact the upper boss of the sleeve core, thereby increasing the pressure of the pressure plate on the sleeve core.

[0011] As an optimization, the pressure plate and the pressure ring are slidably connected. This optimized design allows the pressure plate to slide, achieving a movable connection with the pressure ring.

[0012] As an optimization, a radially extending groove is formed on the outer wall of the pressure ring, and the pressure plate is slidably installed in the groove. In this optimized solution, the pressure plate slides along the groove, realizing radial sliding of the pressure plate.

[0013] As an optimization, the bottom of the groove has a radially extending elongated hole, through which a sliding rod passes. The pressure plate is connected to the sliding rod. In this optimized solution, the pressure plate slides along the elongated hole via the sliding rod, ensuring sliding stability.

[0014] As an optimization, multiple glue-filling ports are provided circumferentially on the inner wall of the pressure ring, with these ports and pressure plates spaced apart. This optimized design facilitates glue filling and fixing between the phase flange and the sleeve core.

[0015] The beneficial effects of this utility model are as follows: by using a pressure plate that moves radially, the distance between the pressure plate and the sleeve core can be adjusted according to the size of the sleeve core, so that the pressure plate can press the sleeve core of different specifications, making it suitable for various specifications of sleeve cores, more convenient to use, and saving costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the usage state of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the pressure ring structure;

[0019] Figure 4 This is a schematic diagram of the pressure plate structure;

[0020] As shown in the figure:

[0021] 1. Sleeve core, 2. Flange, 3. Pressure ring, 4. Pressure plate, 5. Upper boss, 6. Lower boss, 7. Sealing ring, 8. Outlet hole, 9. Mounting hole, 10. Slide groove, 11. Long strip hole, 12. Slide rod, 13. Glue inlet, 14. Raised block. Detailed Implementation

[0022] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0023] like Figures 1-4 As shown, a clamping tool for sealing a sleeve core and a flange includes a pressure ring 3 that is detachably connected to the flange 2. The pressure ring 3 has a mounting hole 9 that mates with the bolt hole of the flange 2. The pressure ring 3 and the flange 2 are detachably fixed together by bolts.

[0024] Multiple pressure plates 4 are movably connected to the pressure ring 3. The pressure plates 4 are evenly arranged around the circumference of the pressure ring 3 and extend radially. The axes of the multiple pressure plates 4 intersect at the center of the pressure ring 3. The pressure plates 4 move radially along the pressure ring 3 and contact the top surface of the upper boss 5 of the sleeve core 1. Through the movement of the pressure plates 4, the end of the pressure plate 4 near the sleeve core 1 moves to the inner side of the pressure ring 3, thereby contacting the top surface of the upper boss 5 and pressing the upper boss 5.

[0025] The pressure plate 4 has a downward protruding protrusion 14 at one end near the inner side of the pressure ring 3. The protrusion 14 contacts the upper boss 5 of the sleeve core 1, concentrating the force and increasing the pressure of the pressure plate 4 on the sleeve core 1.

[0026] The number of pressure plates 4 is at least three to ensure the clamping effect on the sleeve core 1. In this embodiment, four pressure plates 4 are evenly distributed around the circumference of the pressure ring 3. The four pressure plates 4 clamp the sleeve core 1 in four directions to further ensure the clamping effect.

[0027] Specifically, the pressure plate 4 is slidably connected to the pressure ring 3, and the pressure plate 4 is slidably set to realize the movable connection between the pressure plate 4 and the pressure ring 3.

[0028] The outer wall of the pressure ring 3 has a radially extending groove 10. In this embodiment, the groove 10 radially penetrates the pressure ring 3, and the pressure plate 4 is slidably installed within the groove 10. In this embodiment, four grooves 10 are evenly distributed circumferentially on the bottom outer wall of the pressure ring 3, and four pressure plates 4 are installed in the four grooves 10 one by one. Guided by the grooves 10, the pressure plates 4 slide along the grooves 10, realizing the radial movement of the pressure plates 4.

[0029] The bottom of the slide groove 10 has a radially extending elongated hole 11, and a sliding rod 12 passes through the elongated hole 11. The pressure plate 4 is connected and fixed to the sliding rod 12. In this embodiment, each slide groove 10 has two elongated holes 11. The pressure plate 4 slides along the elongated holes 11 via the sliding rod 12, so that the pressure plate 4 is slidably installed in the slide groove 10. The sliding stability is ensured by the guidance of the two elongated holes 11.

[0030] The inner wall of the pressure ring 3 has multiple glue-filling ports 13 arranged circumferentially. The multiple glue-filling ports 13 and multiple pressure plates 4 are distributed at intervals to facilitate glue filling into the gap between the flange 2 and the sleeve core 1. In this embodiment, the inner wall of the pressure ring 3 has four glue-filling ports 13 evenly distributed circumferentially, and the glue-filling ports 13 are semi-circular.

[0031] Working principle: In use, flange 2 is fitted onto the outside of sleeve core 1, and then pressure ring 3 is fitted onto the outside of sleeve core 1. According to the specifications of sleeve core 1, pressure plate 4 is slid radially, with the end of pressure plate 4 extending to the inside of pressure ring 3, so that the protrusion 14 at the end of pressure plate 4 can contact the top surface of the upper boss 5 of sleeve core 1. The pressure ring 3 is connected to the upper end of flange 2 with bolts. At this time, as the connection of pressure ring 3 is tightened, it will provide downward pressure to pressure plate 4, so that the protrusion 14 at the end of pressure plate 4 presses against the upper boss 5 of sleeve core 1, thereby pressing sleeve core 1 against sealing ring 7. Then, epoxy resin is injected into the gap between flange 2 and sleeve core 1 through injection port 13, and epoxy resin is injected between the upper boss 5 and lower boss 6 of sleeve core 1 through outlet hole 8 on flange 2. After the epoxy resin cures, the sealing connection between sleeve core 1 and flange 2 is completed. Once the epoxy adhesive has cured, the clamping fixture can be removed.

[0032] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A compression tool for sealing a casing shoe and a flange, comprising a compression ring (3) which is detachably connected to the flange (2), characterized in that: A plurality of pressing plates (4) are movably connected to the pressing ring (3), the plurality of pressing plates (4) are arranged along the circumference of the pressing ring (3), the pressing plates (4) move along the radial direction of the pressing ring (3) and contact the top surface of the upper boss (5) of the sleeve core (1).

2. The press tool for sealing the casing core and the flange according to claim 1, characterized in that: The axes of the plurality of pressing plates (4) intersect at the center of the pressing ring (3).

3. The press tool for sealing a sleeve core to a flange according to claim 1 or 2, characterized in that: The number of the pressing plates (4) is at least three.

4. The casing collar and flange sealing press-on tool of claim 1, wherein: One end of the pressing plate (4) close to the sleeve core (1) is provided with a downward protruding protruding block (14).

5. The casing collar and flange sealing press-on tool of claim 1, wherein: The pressing plate (4) is in sliding connection with the pressing ring (3).

6. The casing shoe and flange sealing press according to claim 5, characterized in that: A sliding groove (10) extending along the radial direction is formed on the outer wall of the pressing ring (3), and the pressing plate (4) is slidingly installed in the sliding groove (10).

7. The gland tool for sealing between a sleeve core and a flange according to claim 6, characterized in that: A long hole (11) extending along the radial direction is formed on the bottom of the sliding groove (10), a sliding rod (12) is arranged in the long hole, and the pressing plate (4) is connected with the sliding rod (12).

8. The gland tool for sealing between a sleeve core and a flange according to claim 1, characterized by: A plurality of glue pouring openings (13) are formed on the inner wall of the pressing ring (3) along the circumference, and the plurality of glue pouring openings and the plurality of pressing plates are distributed at intervals.

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