Self-adaptive round cover plate device

Abstract

The utility model relates to a self-adaptive round cover plate device, which comprises a round cover plate, a measuring device shell, a threaded seat and a bolt, the round cover plate comprises a round cover plate body, a hanging ring and a lifting ring, the measuring device shell is arranged on an oil tank ascending flanged base, the round cover plate body is arranged at the upper end of the measuring device shell, and the round cover plate body is provided with a vertically downward edge. A plurality of through holes are evenly distributed in the edge in the circumferential direction, the hanging ring is welded to the lower end of the round cover plate body, the lifting ring is welded to the upper end of the round cover plate body, the threaded base is arranged on the outer wall of the measuring device shell, and the bolt penetrates through the through holes to be screwed into the threaded base to fix the round cover plate to the measuring device shell. The round cover plate adapts to different measuring device shell installation conditions through the change of the length of the bolt, the design and manufacturing types of the round cover plate are reduced, direct connection of the lead and the sleeve is achieved on the installation site, the installation process is simplified, and the manufacturing and installation cost is effectively saved.

Description

Technical Field

[0001] This utility model belongs to the field of transformer design and manufacturing technology, and specifically relates to an adaptive circular cover plate device. Background Technology

[0002] During the installation of transformers using tandem bushings, the leads need to be led out from the riser on top of the tank and then passed through the measuring device to connect to the tail of the bushing. Currently, the lead is placed on the riser on top of the tank, and the measuring device is removed from the tank, packaged and transported separately. Upon arrival at the site, large equipment is used to lead the lead out from the riser on the tank and then through the measuring device to connect to the tank.

[0003] Transporting the fuel tank and measuring device separately is significantly more expensive than transporting them together as a whole, with the measuring device mounted on the fuel tank. Furthermore, transporting them separately to the site involves more installation steps, requiring large lifting equipment to mount the measuring device onto the fuel tank and to pass the lead wires through the connecting sleeve of the measuring device.

[0004] Where the height of the transformer allows, this paper addresses the placement of transformer leads in the transportation process for bushings with cross-connection, and also considers the current situation where one size of round cover plate corresponds to one size of measuring device housing. This paper proposes a round cover plate that can adapt to housings of measuring devices of various sizes. Utility Model Content

[0005] To save on transportation costs, reduce the variety of circular cover plate designs and manufactures, and facilitate easy and convenient installation of the lead wire to the end of the bushing after transportation to the site, an adaptive circular cover plate device is provided. By welding a lifting ring to the lower end of the circular cover plate body to suspend the lead wire, and using bolts of different lengths, the circular cover plate can meet the installation conditions of measuring device housings of different sizes. After arriving at the site, the circular cover plate is opened, and the lead wire is directly connected to the end of the bushing, effectively reducing on-site installation procedures and greatly saving manufacturing and installation costs.

[0006] This utility model is achieved through the following technical solution:

[0007] An adaptive circular cover plate device includes a circular cover plate, a measuring device housing, a threaded seat, and bolts. The circular cover plate includes a circular cover plate body, a lifting ring, and a lifting ring. The measuring device housing is mounted on an oil tank riser. The circular cover plate body is mounted on the upper end of the measuring device housing. The circular cover plate body has a vertically downward edge with several through holes evenly distributed along the circumference of the edge. The lifting ring is welded to the lower end of the circular cover plate body, and the lifting ring is welded to the upper end of the circular cover plate body. The threaded seat is welded to the outer wall of the measuring device housing. Bolts pass through the through holes and are screwed into the threaded seat to fix the circular cover plate to the measuring device housing.

[0008] Furthermore, the main body of the circular cover plate is welded to the edge as a single unit.

[0009] Furthermore, both the body and the edges of the circular cover plate are made of Q235 steel plate.

[0010] Furthermore, the circular cover plate body and edge are bent into a single unit before the notch is welded on.

[0011] Furthermore, the thickness of the circular cover plate body is 8–10 mm.

[0012] Furthermore, the positions of the threaded seat and the through hole correspond one-to-one in the circumferential direction.

[0013] Furthermore, the length of the bolt is selected based on the distance between the edge and the threaded seat.

[0014] Furthermore, there is one lifting ring and one hoisting ring.

[0015] Furthermore, the lifting ring is made of round steel bent into a smooth, burr-free surface.

[0016] Furthermore, the number of through holes is an even number greater than or equal to 6.

[0017] Compared with the prior art, the present invention has the following beneficial technical effects:

[0018] An adaptive circular cover plate device includes a circular cover plate, a measuring device housing, a threaded seat, and bolts. The circular cover plate includes a circular cover plate body, a lifting ring, and a hoisting ring. The measuring device housing is mounted on an oil tank riser. The circular cover plate body is mounted on the upper end of the measuring device housing to seal the measuring device. The circular cover plate body has a vertically downward edge with several through holes evenly distributed along the circumference. The threaded seat is welded to the outer wall of the measuring device housing so that bolts can pass through the through holes and be screwed into the threaded seat to fix the circular cover plate to the measuring device housing. By varying the bolt length, the circular cover plate can adapt to the installation and sealing of measuring device housings of different sizes, greatly reducing the variety of circular cover plate designs and manufacturing. The hoisting ring is welded to the upper end of the circular cover plate body for safe lifting. A lifting ring is welded to the lower end of the circular cover plate body to facilitate stable suspension of the lead wire on the lifting ring. After the transformer product is transported to the site, the circular cover plate is disassembled, and the lead wire is directly connected to the bushing tail, avoiding the use of large equipment on the installation site, simplifying the on-site installation process, shortening the worker's installation period, and saving manufacturing and installation costs.

[0019] Furthermore, the round cover plate body and the edge are welded together as one piece. The material of both the round cover plate body and the edge is Q235 steel plate with a thickness of 8-10mm, to ensure the perpendicularity and strength of the round cover plate body and the edge.

[0020] Furthermore, after the round cover plate body and the edge are bent into a single unit, they are then welded together with a notch. The weld is short and easy to operate, ensuring the perpendicularity of the round cover plate body and the edge.

[0021] Furthermore, the positions of the threaded seat and the through hole correspond one-to-one in the circumferential direction, the number of through holes is an even number greater than or equal to 6, and the length of the bolt is selected according to the distance between the edge and the threaded seat. By selecting bolts of different lengths, the round cover plate can be used to seal the housing of measuring devices of different sizes, effectively saving production costs.

[0022] Furthermore, there is one lifting ring and one hoisting ring. The lifting ring is made of round steel with a smooth and burr-free surface, which facilitates and safely suspends the lead wire and ensures that the lead wire insulation is intact. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of the circular cover plate assembly of this utility model;

[0024] Figure 2 This is a cross-sectional view of the three-dimensional schematic diagram of the circular cover plate assembly of this utility model.

[0025] Among them, 1 is the round cover plate body, 2 is the measuring device shell, 3 is the threaded seat, 4 is the bolt, 5 is the lifting ring, 6 is the lifting ring, and 7 is the edge. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings:

[0027] As attached Figures 1-2 As shown, an adaptive circular cover plate device includes a circular cover plate, a measuring device housing 2, a threaded seat 3, and bolts 4. The circular cover plate includes a circular cover plate body 1, a lifting ring 5, and a lifting ring 6. The measuring device housing 2 is mounted on an oil tank riser. The circular cover plate body 1 is mounted on the upper end of the measuring device housing 2. The circular cover plate body 1 is provided with a vertically downward edge 7, and the edge 7 is evenly distributed with several through holes along the circumference. The lifting ring 5 is welded to the lower end of the circular cover plate body 1, and the lifting ring 6 is welded to the upper end of the circular cover plate body 1. The threaded seat 3 is welded to the outer wall of the measuring device housing 2. The bolts 4 pass through the through holes and are screwed into the threaded seat 3 to fix the circular cover plate to the measuring device housing 2.

[0028] Specifically, the round cover plate body 1 and the edge 7 are welded together as one piece.

[0029] More preferably, the material of the round cover plate body 1 and the edge 7 is both steel plate Q235.

[0030] Specifically, the round cover plate body 1 and the edge 7 are bent into a single piece and then the notch is welded on.

[0031] Specifically, the thickness of the circular cover plate body 1 is 8-10 mm.

[0032] Specifically, the positions of the threaded seat 3 and the through hole correspond one-to-one in the circumferential direction.

[0033] Specifically, the length of bolt 4 is selected based on the distance between edge 7 and threaded seat 3 to ensure a firm connection between bolt 4 and threaded seat 3.

[0034] Ideally, there should be one lifting ring 5 and one lifting ring 6.

[0035] Even better, the lifting ring 5 is made of round steel bent into a smooth surface without burrs.

[0036] Specifically, the number of through holes is an even number greater than or equal to 6.

[0037] This utility model provides a circular cover plate that can fully adapt to the installation and sealing of measuring devices of multiple sizes. Several threaded seats 3 are welded on the housing 2 of the measuring device, and several through holes are set in the vertical direction of the circular cover plate. The circular cover plate can be adapted to the installation and sealing of measuring device housings of different sizes by utilizing the variation of the bolt length 4.

[0038] During transportation, the circular cover plate is installed on the housing 2 of the measuring device, suspending the lead wire on the lifting ring 5. During on-site installation, the circular cover plate is removed, and the lead wire is directly connected and fixed to the end of the sleeve, saving on-site installation steps. Simultaneously, when the transport height permits, it achieves the goal of installing the measuring device onto the fuel tank body for transport, significantly reducing transportation costs.

Claims

1. An adaptive circular cover plate device, characterized in that, The device includes a round cover plate, a measuring device housing (2), a threaded seat (3), and a bolt (4). The round cover plate includes a round cover plate body (1), a lifting ring (5), and a lifting ring (6). The measuring device housing (2) is installed on the oil tank riser. The round cover plate body (1) is installed on the upper end of the measuring device housing (2). The round cover plate body (1) is provided with a vertically downward edge (7). The edge (7) is evenly distributed with several through holes along the circumference. The lifting ring (5) is welded to the lower end of the round cover plate body (1). The lifting ring (6) is welded to the upper end of the round cover plate body (1). The threaded seat (3) is welded to the outer wall of the measuring device housing (2). The bolt (4) passes through the through hole and is screwed into the threaded seat (3) to fix the round cover plate to the measuring device housing (2).

2. The adaptive circular cover plate device according to claim 1, characterized in that, The round cover plate body (1) and the edge (7) are welded together.

3. The adaptive circular cover plate device according to claim 2, characterized in that, The material of the round cover plate body (1) and the edge (7) is steel plate Q235.

4. The adaptive circular cover plate device according to claim 1, characterized in that, The round cover plate body (1) and edge (7) are bent into one piece and then the notch is welded.

5. An adaptive circular cover plate device according to any one of claims 2 to 4, characterized in that, The thickness of the round cover plate body (1) is 8-10 mm.

6. The adaptive circular cover plate device according to claim 1, characterized in that, The threaded seat (3) and the through hole are in a one-to-one correspondence in the circumferential direction.

7. The adaptive circular cover plate device according to claim 1, characterized in that, The length of the bolt (4) is selected according to the distance between the edge (7) and the threaded seat (3) to ensure that the bolt (4) and the threaded seat (3) are firmly connected.

8. The adaptive circular cover plate device according to claim 1, characterized in that, There is one lifting ring (5) and one lifting ring (6).

9. The adaptive circular cover plate device according to claim 8, characterized in that, The lifting ring (5) is made of round steel and has a smooth surface without burrs.

10. The adaptive circular cover plate device according to claim 1, characterized in that, The number of through holes is an even number greater than or equal to 6.

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