Movable hoisting snap ring for overhauling transformer pipeline

Abstract

The utility model relates to a movable hoisting snap ring for overhauling a transformer pipeline, which comprises a first semi-ring, a second semi-ring, a hoisting ring and a first supporting piece, and the two ends of the first semi-ring and the second semi-ring are respectively and correspondingly inserted and connected through a first pin shaft and a second pin shaft; wherein one end, connected with the first pin shaft, of the first semi-ring or the second semi-ring is provided with a first connecting seat, the first connecting seat is provided with a hanging ring, one end, connected with the second pin shaft, of the first semi-ring or the second semi-ring is provided with a second connecting seat, the second connecting seat is provided with a supporting piece in a screwed connection mode through threads, and the supporting piece is a trundle or a supporting leg. A pipeline can be conveniently held through the first semi-ring and the second semi-ring, the first semi-ring or the second semi-ring is provided with the lifting ring so that lifting can be facilitated, and translation or height adjustment can be conveniently conducted on the pipeline through the trundles or the supporting feet arranged at the bottom.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer maintenance, in particular to a mobile hoisting clamp ring used for transformer pipeline maintenance. Background Art

[0002] At present, when repairing transformers in closed spaces, disassembling and assembling oil pipes of transformers, and replacing flanges and valve seals related to oil pipes, it is inconvenient to lift and lower the pipes to adjust the docking height, swing them for alignment, and perform translational separation or close operations. When the height position needs to be adjusted, it is swung manually and then padded with pads of appropriate thickness; when translation and left and right swinging for alignment are required, it is also pushed and pulled manually, which has poor operability. In addition, due to the narrow on-site working environment, for example, when repairing pipeline 101 on the top of transformer 100, the working space is limited and the number of personnel is reduced, resulting in low working efficiency. Utility Model Content

[0003] The technical problem to be solved by the utility model is: to solve the problems existing in the above-mentioned background technology, and to provide a mobile lifting clamp for transformer pipeline maintenance, which is provided with a lifting ring for easy lifting, and the casters or supporting feet arranged at the bottom can conveniently translate or adjust the height of the pipeline.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a mobile lifting clamp for transformer pipeline maintenance, comprising a first half ring, a second half ring, a lifting ring and a first support member, wherein the first half ring and the second half ring are respectively plugged in at both ends and connected to the second pin shaft through a first pin shaft, wherein a first connecting seat is provided at one end of the first half ring or the second half ring connected to the first pin shaft, a lifting ring is installed on the first connecting seat, a second connecting seat is provided at one end of the first half ring or the second half ring connected to the second pin shaft, a support member is installed on the second connecting seat through a threaded connection, and the support member is a caster or a supporting foot.

[0005] The lifting ring is movably mounted on the fixing seat, and the fixing seat is threadedly connected to the first connecting seat.

[0006] A screw rod is arranged at the lower side of the second connecting seat, and the screw rod is threadedly connected to the supporting member through a first positive and negative thread nut sleeve.

[0007] A third connecting seat is also provided in the middle of the outer wall of the first half ring and / or the second half ring, and the supporting member is also installed on the third connecting seat.

[0008] The third connecting seat is provided with a screw rod on a side away from the first half ring or the second half ring, and the screw rod is threadedly connected to the support member through a second positive and negative thread nut sleeve.

[0009] The utility model has the following beneficial effects:

[0010] 1. The utility model can conveniently hold the pipeline through the first half ring and the second half ring, and a lifting ring is provided on the first half ring or the second half ring for easy lifting, and the casters or supporting feet provided at the bottom can conveniently translate or adjust the height of the pipeline.

[0011] 2. The utility model can efficiently and conveniently disassemble and assemble the top of the transformer oil tank and the ground oil pipe, replace the corresponding valves, flanges and seals, effectively reduce the risk of transformer pipeline maintenance, and can also meet the risk of pipeline maintenance of other equipment and improve related construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0013] Figure 1 This is a schematic structural diagram of the first embodiment of the utility model.

[0014] Figure 2 This is a schematic structural diagram of the second embodiment of the utility model.

[0015] Figure 3 This is an exploded view of the first embodiment of the utility model.

[0016] Figure 4 This is a state diagram used in the present utility model.

[0017] Figure 5 for Figure 4 Enlarged schematic diagram at point A in the middle.

[0018] In the figure: the first half ring 1, the second half ring 2, the first pin shaft 3, the second pin shaft 4, the first connecting seat 5, the lifting ring 6, the second connecting seat 7, the caster 8, the supporting foot 9, the first positive and negative thread nut sleeve 10, the shift rod 11, the third connecting seat 12, the second positive and negative thread nut sleeve 13, and the fixing seat 14. DETAILED DESCRIPTION

[0019] See also Figure 1-3A mobile hoisting clamp for transformer pipeline maintenance, comprising a first half ring 1, a second half ring 2, a lifting ring 6 and a first support member, wherein the first half ring 1 and the second half ring 2 are respectively plugged in at both ends and connected to the second pin shaft 4 through a first pin shaft 3, wherein a first connection seat 5 is provided at one end of the first half ring 1 or the second half ring 2 connected to the first pin shaft 3, a lifting ring 6 is installed on the first connection seat 5, a second connection seat 7 is provided at one end of the first half ring 1 or the second half ring 2 connected to the second pin shaft 4, a support member is installed on the second connection seat 7 through threaded connection, and the support member is a caster 8 or a support foot 9. The first half ring 1 and the second half ring 2 can conveniently hold the pipeline, the lifting ring 6 is provided on the first half ring 1 or the second half ring 2 for easy lifting, and the caster 8 or the support foot 9 provided at the bottom can conveniently translate or adjust the height of the pipeline.

[0020] Specifically, the lifting ring 6 can be welded on the first connecting seat 5. The first connecting seat 5 can be integrated with the first half ring 1, or can be independently installed on the first pin shaft 3.

[0021] In this embodiment, a threaded hole is provided on the lower side of the second connecting seat 7, and the caster 8 or the supporting foot 9 is screwed to the threaded hole on the lower side of the second connecting seat 7, and the height is adjusted by rotating the screw on the caster 8 or the supporting foot 9.

[0022] Furthermore, a hole is provided on the upper side of the fixing seat 14, and the lifting ring 6 is movably mounted on the fixing seat 14 through the hole. The fixing seat 14 is threadedly connected with the first connecting seat 5, so as to facilitate the installation and connection of the lifting ring 6 with the first connecting seat 5. Specifically, a threaded hole is provided on the first connecting seat 5, and a screw is provided on the lower side of the fixing seat 14. The fixing seat 14 is screwed and fixed to the threaded hole on the first connecting seat 5 through the screw. Of course, the first connecting seat 5 may be provided with a screw, and the fixing seat 14 may be provided with a threaded hole.

[0023] In order to adjust the height more conveniently, a screw is provided on the lower side of the second connection seat 7, and the screw is threadedly connected to the support member through the first positive and negative thread nut sleeve 10. When in operation, the height is adjusted by rotating the first positive and negative thread nut sleeve 10. Specifically, one end of the inner hole of the first positive and negative thread nut sleeve 10 is provided with a positive thread internal thread, and the other end is a negative thread internal thread. The screw on the lower side of the second connection seat 7 and the screw of the support member are respectively adapted to the positive thread internal thread and the negative thread internal thread of the first positive and negative thread nut sleeve 10.

[0024] See also Figure 3 , 5 A third connecting seat 12 is also provided in the middle of the outer wall of the first half ring 1 and / or the second half ring 2, and the supporting member is also installed on the third connecting seat 12, so as to support and position the side of the pipeline.

[0025] Furthermore, the third connection seat 12 is provided with a screw on a side away from the first half ring 1 or the second half ring 2, and the screw is threadedly connected to the support member through a second positive and negative thread nut sleeve 13. The structure of the second positive and negative thread nut sleeve 13 is the same as that of the first positive and negative thread nut sleeve 10. When in operation, the extension length of the support member is adjusted by rotating the second positive and negative thread nut sleeve 13.

[0026] Furthermore, a lever 11 is welded on the first and second nut sleeves 10 and 13 to facilitate manual rotation of the first and second nut sleeves 10 and 13 .

[0027] The working principle or action process of the utility model is as follows:

[0028] See also Figure 5 When in use, four mobile lifting clamps of the utility model are installed on a pipe. The supporting parts of two of the lifting clamps are casters 8, and the supporting parts of the other two lifting clamps are supporting feet 9. One lifting clamp with casters 8 and supporting feet 9 is installed at each end. During installation, remove the first pin 3 or the second pin 4, and after the first half ring 1 and the second half ring 2 hold the pipe, reinstall the first pin 3 or the second pin 4. It should be noted that the supporting feet 9 are existing technologies and can be purchased directly from the market. The casters 8 are preferably wide roller surface universal casters.

[0029] In addition, a screw may be radially screwed onto the first half ring 1 and the second half ring 2 so that the screw abuts against the outer wall of the pipe 101 to prevent axial or radial displacement between the pipe 101 and the lifting clamp.

[0030] When hoisting over a long distance, the lifting rings 6 on the lifting clamps at both ends are used for smooth hoisting. After hoisting to the approximate position, first support it with the support feet 9 on the front and rear lifting clamps. When adjusting the height, adjust the height of the pipeline through the first positive and negative thread nut sleeve 10. When the swing angle is required, the lifting clamp at one end of the pipeline is supported by the support foot 9, and the other support foot 9 is retracted and supported by the caster 8, so that the pipeline can be rotated by the caster 8. When translation is required, the support feet 9 at the lower ends of the lifting clamps at both ends are completely retracted by rotating the first positive and negative thread nut sleeve 10, so as to facilitate the translation of the pipeline. During operation, one person holds the pipeline and the other adjusts the lifting clamp, and the two can complete the maintenance of the transformer pipeline.

Claims

1. A mobile hoisting clamp for transformer pipeline maintenance, characterized in that: The invention comprises a first half ring (1), a second half ring (2), a lifting ring (6) and a first supporting member, wherein the first half ring (1) and the second half ring (2) are plugged into each other at two ends thereof and connected to the second pin shaft (4) via a first pin shaft (3), wherein a first connecting seat (5) is provided at one end of the first half ring (1) or the second half ring (2) connected to the first pin shaft (3), and the lifting ring (6) is mounted on the first connecting seat (5), and a second connecting seat (7) is provided at one end of the first half ring (1) or the second half ring (2) connected to the second pin shaft (4), and a supporting member is mounted on the second connecting seat (7) via a screw thread, and the supporting member is a caster (8) or a supporting foot (9).

2. The mobile hoisting clamp for transformer pipeline maintenance according to claim 1 is characterized in that: The lifting ring (6) is movably mounted on a fixing seat (14), and the fixing seat (14) is threadedly connected to the first connecting seat (5).

3. The mobile hoisting clamp for transformer pipeline maintenance according to claim 1 is characterized in that: A screw rod is provided on the lower side of the second connection seat (7), and the screw rod is threadedly connected to the support member via a first positive and negative thread nut sleeve (10).

4. The mobile hoisting clamp for transformer pipeline maintenance according to claim 1 is characterized in that: A third connecting seat (12) is also provided in the middle of the outer wall of the first half ring (1) and / or the second half ring (2), and the supporting member is also mounted on the third connecting seat (12).

5. The mobile hoisting clamp for transformer pipeline maintenance according to claim 4 is characterized in that: The third connection seat (12) is provided with a screw rod on a side away from the first half ring (1) or the second half ring (2), and the screw rod is threadedly connected to the support member via a second positive and negative thread nut sleeve (13).

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