A hoisting device for cross-road busbars

Abstract

This invention relates to the field of hoisting equipment technology, and more particularly to a hoisting device for a cross-road duct jack. The hoisting device for the cross-road duct jack includes a first hoisting assembly and a second hoisting assembly. The first hoisting assembly includes a first support, a first pulley block, and a first lifting rope. The first support is disposed at the top of a first insulating support post. The first pulley block is rotatably mounted on the first support. The first lifting rope is wound around the first pulley block, and one end of the first lifting rope is detachably connected to the cross-road duct jack, while the other end hangs freely. The second hoisting assembly includes a second support, a second pulley block, and a second lifting rope. The second support is disposed at the top of a second insulating support post, and the first and second insulating support posts are connected via the cross-road duct jack. The second pulley block is rotatably mounted on the second support. The second lifting rope is wound around the second pulley block, and one end of the second lifting rope is detachably connected to the cross-road duct jack, while the other end hangs freely, thus improving the efficiency of assembling and disassembling the cross-road duct jack.

Description

Technical Field

[0001] This invention relates to the field of hoisting equipment technology, and in particular to a hoisting device for a cross-road main pipeline. Background Technology

[0002] The tubular busbar (hereinafter referred to as the busbar) in the substation is a conductor connection between the power grid transmission line and the substation transformer, a jumper in the transmission line, and a connecting conductor in the power equipment. It plays a vital role in the safe and reliable operation of the power transmission and transformation system and power equipment.

[0003] Currently, the cross-line busbars installed between switches (circuit breakers) and current transformers in substations are typically placed horizontally at a height of approximately 8m to 10m. The installation, maintenance, and replacement of these cross-line busbars all require the use of cranes for lifting and dismantling. Due to the limitations of the substation's internal environment, the preliminary preparation work is cumbersome, and the crane's movement within the substation is inconvenient. The crane may also be insufficiently positioned to maintain energized distances from adjacent equipment, potentially causing damage or electric shock risks. In some cases, adjacent equipment may need to be shut down, reducing the reliability of the substation's power supply. Furthermore, the overall dismantling and installation process using cranes is time-consuming, increasing the workload and reducing efficiency, which can negatively impact the efficient operation of the substation. Summary of the Invention

[0004] The purpose of this invention is to provide a hoisting device for cross-line busbars, so as to reduce the workload of disassembling and assembling cross-line busbars, improve the efficiency of disassembly and assembly, and at the same time, eliminate the need for adjacent equipment to be shut down, thereby improving the reliability of power supply.

[0005] To achieve this objective, the technical solution adopted by the present invention is as follows:

[0006] A hoisting device for a cross-road busbar includes:

[0007] The first hoisting assembly includes a first support, a first pulley block, and a first hoisting rope. The first support is disposed at the top of a first insulating support post. The first pulley block is rotatably disposed on the first support. The first hoisting rope is wound around the first pulley block, and one end of the first hoisting rope is detachably connected to the cross-line duct, while the other end hangs freely.

[0008] The second hoisting assembly includes a second support, a second pulley block, and a second hoisting rope. The second support is disposed at the top of the second insulating support column, and the first insulating support column and the second insulating support column can be connected through the cross-connecting duct. The second pulley block is rotatably disposed on the second support, and the second hoisting rope is wound around the second pulley block. One end of the second hoisting rope can be detachably connected to the cross-connecting duct, and the other end hangs freely.

[0009] As a preferred embodiment, the first support includes:

[0010] A first horizontal lifting beam extends axially along the cross-connecting pipe busbar, and a first pulley block is rotatably mounted on the first horizontal lifting beam; and

[0011] The first column has one end located at the top of the first insulating support column and the other end located on the first horizontal suspension beam. The position of the first column along the axial direction of the first horizontal suspension beam is adjustable.

[0012] As a preferred embodiment, the top of the first column is connected to the top of the first insulating support column by bolts.

[0013] As a preferred embodiment, the first pulley assembly includes two first pulleys, with one first pulley rotatably mounted at each end of the first horizontal beam along its axial direction, and the first lifting rope sequentially wound around the two first pulleys.

[0014] As a preferred embodiment, the second support includes:

[0015] A second horizontal lifting beam extends axially along the cross-duct busbar, and a second pulley block is rotatably mounted on the second horizontal lifting beam; and

[0016] The second column has multiple second columns arranged around its circumference at its top, and the top of the second column is connected to the second horizontal beam.

[0017] As a preferred embodiment, the second support also includes a transition beam, which is disposed on the second horizontal suspension beam; there are three second columns, two of which are respectively disposed at both ends of the transition beam along its axial direction, and one of which is disposed on the second horizontal suspension beam.

[0018] As a preferred embodiment, the second support also includes:

[0019] A locking plate is provided at the bottom end of the second column, forming a locking groove with the locking plate. The outer edge of the top end of the second insulating support column can extend into the locking groove. A through hole communicating with the locking groove is provided on the locking plate.

[0020] A locking screw is movably inserted into the through hole and is able to press the outer edge of the top of the second insulating post against the locking groove.

[0021] As a preferred embodiment, the second support also includes a clamp, which is arranged circumferentially around the second insulating post and connected to a plurality of locking plates respectively. The clamp is configured to bring the plurality of locking plates close to each other to grip the outer edge of the top of the second insulating post.

[0022] As a preferred embodiment, the second pulley assembly includes two second pulleys, with one second pulley rotatably mounted at each end of the second horizontal beam along its axial direction, and the second lifting rope sequentially wound around the two second pulleys.

[0023] As a preferred embodiment, the hoisting device for the cross-road main pipe further includes a hook, and the hook is installed at one end of both the first hoisting rope and the second hoisting rope, and the hook can be fixedly connected to the cross-road main pipe.

[0024] The beneficial effects of this invention are as follows:

[0025] The hoisting device for the cross-road duct jacking proposed in this invention includes a first hoisting assembly and a second hoisting assembly. First, a first support is positioned at the top of a first insulating support, and a second support is positioned at the top of a second insulating support. Then, one end of a first hoisting rope and a second hoisting rope are connected to the cross-road duct jacking. When installation is required, the free-hanging ends of the first and second hoisting ropes are pulled simultaneously to hoist the cross-road duct jacking to a designated height and establish a conductive connection with the tops of the first and second insulating supports. When disassembly is required, the cross-road duct jacking is disconnected from the tops of the first and second insulating supports, and the free-hanging ends of the first and second hoisting ropes are released simultaneously to lower the cross-road duct jacking to a designated height. By tightening or releasing the first and second hoisting ropes, rapid assembly and disassembly of the cross-road duct jacking can be achieved without the need for large equipment such as cranes, saving on preliminary preparation work, reducing the workload of assembly and disassembly, and improving efficiency. Meanwhile, since no large equipment such as cranes is required to enter the station for operation, the hoisting device of the cross-line busbar has sufficient energized distance from the equipment spaced adjacent to the cross-line busbar when in use, and will not affect the normal operation of the equipment spaced adjacent to the cross-line busbar, thereby avoiding the shutdown of the equipment spaced adjacent to the cross-line busbar and improving the reliability of power supply. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the assembly structure of the hoisting device, the first insulating support, and the second insulating support of the cross-road busbar provided in Embodiment 1 of the present invention;

[0027] Figure 2 This is a schematic diagram of the structure of the first hoisting assembly provided in Embodiment 1 of the present invention;

[0028] Figure 3 This is a schematic diagram of the structure of the second hoisting assembly provided in Embodiment 1 of the present invention.

[0029] The component names and labels in the diagram are as follows:

[0030] 10. Cross-line busbar; 20. First insulating support post; 201. Flange; 30. Second insulating support post; 301. Cover;

[0031] 1. First hoisting assembly; 11. First support frame; 111. First horizontal lifting beam; 112. First column; 12. First pulley; 13. First hoisting rope;

[0032] 2. Second hoisting assembly; 21. Second bracket; 211. Second horizontal lifting beam; 212. Second column; 213. Transition beam; 214. Locking plate; 2140. Locking groove; 2141. Through hole; 215. Locking screw; 22. Second pulley; 23. Second hoisting rope; 24. Hoist;

[0033] 3. Connecting plate; 4. Hook. Detailed Implementation

[0034] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention. Furthermore, it should be noted that, for ease of description, only the parts related to the present invention are shown in the accompanying drawings, not all of them.

[0035] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0038] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0039] Example 1

[0040] like Figure 1 As shown, the cross-connector 10 installed between the switch and the current transformer in the substation is generally placed horizontally at a height of about 8m to 10m. Specifically, the first insulating support 20 on the switch is equipped with a flange 201, and two centrally symmetrical lugs extend outward from the outer edge of part of the flange 201. The top of the second insulating support 30 of the current transformer has a cylindrical cover 301, which is equipped with components such as a temperature compensator. One end of the cross-connector 10 is electrically connected to one of the lugs, and the other end extends into the inside of the cover 301 and is electrically connected to the second insulating support 30.

[0041] Currently, the installation, maintenance, and replacement of the cross-line busbar 10 all require the use of cranes for lifting and dismantling. Due to the limitations of the substation's internal environment, the preliminary preparation work is cumbersome, and the crane's movement within the station is inconvenient. The overall dismantling and assembly process is time-consuming, increasing the workload, reducing efficiency, and potentially affecting the efficient operation of the substation.

[0042] To solve the above problems, such as Figure 1 As shown, this embodiment proposes a hoisting device for a cross-road duct 10, specifically including a first hoisting assembly 1 and a second hoisting assembly 2. The first hoisting assembly 1 includes a first support 11, a first pulley block, and a first hoisting rope 13. The first support 11 is disposed at the top of a first insulating support column 20. The first pulley block is rotatably disposed on the first support 11. The first hoisting rope 13 is wound around the first pulley block, and one end of the first hoisting rope 13 can be detachably connected to the cross-road duct 10, while the other end hangs freely. The second hoisting assembly 2 includes a second support 21, a second pulley block, and a second hoisting rope 23. The second support 21 is disposed at the top of a second insulating support column 30. The first insulating support column 20 and the second insulating support column 30 can be connected through the cross-road duct 10. The second pulley block is rotatably disposed on the second support 21. The second hoisting rope 23 is wound around the second pulley block, and one end of the second hoisting rope 23 can be detachably connected to the cross-road duct 10, while the other end hangs freely.

[0043] In this embodiment, the first support 11 is first placed on the top of the first insulating support 20, and the second support 21 is placed on the top of the second insulating support 30. Then, one end of the first lifting rope 13 and the second lifting rope 23 are connected to the cross-connecting jack 10. When installation is required, the free hanging ends of the first lifting rope 13 and the second lifting rope 23 are pulled simultaneously to lift the cross-connecting jack 10 to a designated height and connect it to the tops of the first insulating support 20 and the second insulating support 30. When disassembly is required, the cross-connecting jack 10 is disconnected from the tops of the first insulating support 20 and the second insulating support 30, and the free hanging ends of the first lifting rope 13 and the second lifting rope 23 are released simultaneously to lower the cross-connecting jack 10 to a designated height. By tightening or releasing the first lifting rope 13 and the second lifting rope 23, the cross-connecting jack 10 can be quickly assembled and disassembled without the need for large equipment such as cranes, saving preliminary preparation work, reducing the workload of assembling and disassembling the cross-connecting jack 10, and improving the efficiency of assembly and disassembly.

[0044] In addition, since no large equipment such as cranes is required to enter the station for operation, the hoisting device of the cross-line busbar has sufficient energized distance from the equipment installed in the adjacent interval of the cross-line busbar 10 when in use, and will not affect the normal operation of the equipment installed in the adjacent interval, thereby avoiding the equipment installed in the adjacent interval from stopping and improving the reliability of power supply.

[0045] It should be noted that when disassembling and assembling the cross-road busbar 10, the first lifting rope 13 and the second lifting rope 23 can be manually pulled and released, and the lifting speed of the first lifting rope 13 and the second lifting rope 23 can be kept consistent to avoid the cross-road busbar 10 tilting or slipping, thereby improving the stability and safety of the cross-road busbar 10 hoisting process.

[0046] Furthermore, the hoisting device for the cross-road duct 10 also includes a hook 4. A hook 4 is installed at one end of both the first hoisting rope 13 and the second hoisting rope 23, and the hook 4 can be fixedly connected to the cross-road duct 10. The hook 4 can quickly and securely hook the cross-road duct 10, which helps improve the efficiency of disassembly and assembly of the cross-road duct 10. In this embodiment, the hook 4 has a self-locking function, which can prevent the first hoisting rope 13 and / or the second hoisting rope 23 from accidentally disengaging from the cross-road duct 10 during hoisting, thus improving the safety of the disassembly and assembly process of the cross-road duct 10. The hook 4 with the self-locking function is a mature product and can be obtained through external purchase.

[0047] like Figure 1 and Figure 2As shown, the first support 11 includes a first horizontal suspension beam 111 and a first column 112. The first horizontal suspension beam 111 extends axially along the cross-connecting pipe 10, and a first pulley group is rotatably mounted on the first horizontal suspension beam 111. One end of the first column 112 is located at the top of the first insulating support column 20, and the other end is located on the first horizontal suspension beam 111. The position of the first column 112 along the axial direction of the first horizontal suspension beam 111 is adjustable.

[0048] Specifically, in this embodiment, there are two first columns 112, and the top ends of the two first columns 112 are bolted to the first insulating support column 20. That is, the bottom ends of the two first columns 112 are respectively bolted to the two lugs of the flange 201, realizing the detachable installation of the first bracket 11. At the same time, the spacing between the two first columns 112 can be flexibly adjusted to adapt to the spacing between the two lugs on the flange 201, improving the versatility of the first bracket 11.

[0049] It should be noted that the first horizontal beam 111 and the first column 112 in this embodiment are both made of aluminum profiles, which makes the first bracket 11 lighter and easier to carry and install. At the same time, by cutting the aluminum profiles to obtain the first horizontal beam 111 and the first column 112, it is easy to flexibly adjust the length of the first horizontal beam 111 and the first column 112.

[0050] like Figure 2 As shown, the first pulley assembly includes two first pulleys 12. A first pulley 12 is rotatably mounted at each end of the first horizontal lifting beam 111 along its axial direction. A first lifting rope 13 is sequentially wound around the two first pulleys 12. Because the first horizontal lifting beam 111 is made of aluminum profile, it has concave cavities on all four sides. The portion of the first lifting rope 13 located between the two first pulleys 12 can pass through the cavity of the first horizontal lifting beam 111, thereby enabling the free movement of the first lifting rope 13.

[0051] like Figure 2 As shown, the hoisting device for the cross-road pipe bus also includes a connecting plate 3. The first horizontal lifting beam 111 and the first column 112, the first horizontal lifting beam 111 and the first pulley 12, and the first column 112 and the lug of the flange 201 are all fixedly connected by the connecting plate 3. The connecting plate 3 achieves the connection and installation of the two components through the locking fit with bolts. Since the connecting plate 3 is a conventional part used in the profile splicing process, its specific shape and size can be flexibly changed according to the installation requirements, and will not be described in detail here.

[0052] In this embodiment, because the structures at the ends of the two insulating support pillars are different, the structures of the first lifting assembly 1 and the second lifting assembly 2 are not entirely the same. Specifically, as shown... Figure 1 and Figure 3As shown, the second support 21 includes a second horizontal suspension beam 211 and a second column 212. The second horizontal suspension beam 211 extends axially along the cross-road pipe bus 10, and a second pulley group is rotatably mounted on the second horizontal suspension beam 211. Multiple second columns 212 are arranged circumferentially at the top of the second column 212, and the top of the second column 212 is connected to the second horizontal suspension beam 211.

[0053] It should be noted that in this embodiment, the second horizontal beam 211 and the second column 212 are also made of aluminum profiles, which makes the second bracket 21 lighter and easier to carry and install. The second horizontal beam 211 and the second column 212 are obtained by cutting the aluminum profiles, which makes it easy to flexibly adjust the length of the second horizontal beam 211 and the second column 212.

[0054] like Figure 3 As shown, the second pulley assembly includes two second pulleys 22. A second pulley 22 is rotatably mounted at each end of the second horizontal lifting beam 211 along its axial direction. A second lifting rope 23 is sequentially wound around the two second pulleys 22. Because the second horizontal lifting beam 211 is made of aluminum profile, it has concave cavities on all four sides. The portion of the second lifting rope 23 located between the two second pulleys 22 can pass through the cavities of the second horizontal lifting beam 211, allowing for free movement of the second lifting rope 23. Furthermore, the second horizontal lifting beam 211 and the second column 212, as well as the second horizontal lifting beam 211 and the second pulleys 22, are fixedly connected by connecting plates 3.

[0055] It should be noted that the second bracket 21 is installed on the cylindrical cover 301 at the top of the second insulating support 30, and the cover 301 has a horizontally outwardly extending annular flange along its circumference to form the outer edge of the top of the second insulating support 30.

[0056] like Figure 3 As shown, the second support 21 also includes a transition beam 213, which is disposed on the second horizontal suspension beam 211. There are three second columns 212: two second columns 212 are respectively disposed at both ends of the transition beam 213 along its axial direction, and one second column 212 is disposed on the second horizontal suspension beam 211, thus arranging the three second columns 212 in a triangular pattern and surrounding the outer periphery of the cover 301. The connection of the three second columns 212 to the cover 301 improves the stability and reliability of the second support 21 installation. Of course, the number of second columns 212 in this embodiment can also be two, four, or five or more.

[0057] Furthermore, the second bracket 21 also includes a locking plate 214 and a locking screw 215. The bottom end of the second column 212 is provided with the locking plate 214, which forms a locking groove 2140. The outer edge of the top end of the second insulating support column 30 can extend into the locking groove 2140. The locking plate 214 has a through hole 2141 communicating with the locking groove 2140. The locking screw 215 is movably inserted into the through hole 2141 and can press the outer edge of the top end of the second insulating support column 30 against the locking groove 2140. The second bracket 21 and the second insulating support column 30 (cover 301) are detachably installed through a snap-fit ​​engagement, which improves the assembly and disassembly efficiency of the second bracket 21.

[0058] In this embodiment, the locking plate 214 consists of two connected L-shaped side plates. One side plate is connected to the corresponding second column 212, and the other side plate has a through hole 2141, which together with the bottom end of the second column 212 forms a U-shaped locking groove 2140. When the second bracket 21 is installed, the bottom ends of the three second columns 212 need to be placed on the annular flange of the cover 301. Then, a locking plate 214 is installed on each second column 212. Subsequently, the locking screws 215 are screwed into the through hole 2141 and into the locking groove 2140, so that the locking screws 215 abut against the annular flange of the cover 301. This achieves a reliable and stable engagement between the second bracket 21 and the second insulating support column 30. At the same time, the operation of screwing in the locking screws 215 is simple, improving the installation efficiency of the second bracket 21.

[0059] Furthermore, the second bracket 21 also includes a clamp 24, which surrounds the circumference of the second insulating support column 30 and is connected to multiple locking plates 214. The clamp 24 allows the multiple locking plates 214 to approach each other, thereby clamping the outer edge of the top of the second insulating support column 30. When the second bracket 21 is installed and before the locking screws 215 are tightened, the inner diameter of the clamp 24 is reduced, causing the three locking plates 214 to approach each other, thereby clamping the cover 301, further improving the connection strength and reliability between the second bracket 21 and the second insulating support column 30. Since the clamp 24 is prior art, it will not be described in detail here.

[0060] Example 2

[0061] This embodiment proposes a hoisting device for cross-road pipe busbars. The hoisting device for cross-road pipe busbars in this embodiment has a basically the same structure as the hoisting device for cross-road pipe busbars in Embodiment 1. The main difference is that the lifting methods of the first hoisting rope 13 and the second hoisting rope 23 are different.

[0062] Specifically, the hoisting device for the cross-road pipe bus also includes a winding device, which comprises a motor and a winding reel. The motor can drive the winding reel to rotate forward or in the reverse direction. The free hanging ends of the first hoisting rope 13 and the second hoisting rope 23 are respectively wound around the corresponding winding reels. The winding device enables the automatic lifting and lowering of the first hoisting rope 13 and the second hoisting rope 23. At the same time, by controlling the speed and direction of the winding reel, the first hoisting rope 13 and the second hoisting rope 23 can be synchronously wound and unwound to prevent the cross-road pipe bus 10 from tilting or slipping, thus improving the stability and safety of the hoisting process of the cross-road pipe bus 10. Since the winding device is existing technology, it will not be described in detail here.

[0063] The above embodiments merely illustrate the basic principles and characteristics of the present invention. The present invention is not limited to the above embodiments. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hoisting device for a cross-road busbar, characterized in that, include: The first hoisting assembly (1) includes a first support (11), a first pulley block, and a first hoisting rope (13). The first support (11) is disposed at the top of the first insulating support column (20). The first pulley block is rotatably disposed on the first support (11). The first hoisting rope (13) is wound around the first pulley block, and one end of the first hoisting rope (13) can be detachably connected to the cross-line jacking (10), while the other end hangs freely. The second hoisting assembly (2) includes a second bracket (21), a second pulley block, and a second hoisting rope (23). The second bracket (21) is disposed at the top of the second insulating support column (30). The first insulating support column (20) and the second insulating support column (30) can be connected through the cross-connecting nut (10). The second pulley block is rotatably disposed on the second bracket (21). The second hoisting rope (23) is wound around the second pulley block. One end of the second hoisting rope (23) can be detachably connected to the cross-connecting nut (10), and the other end hangs freely. The cross-road jack (10) can be quickly disassembled and assembled by simultaneously tightening or releasing the other end of the first sling (13) and the other end of the second sling (23); The first support (11) includes: A first horizontal lifting beam (111) extends axially along the cross-connecting pipe busbar (10), and a first pulley assembly is rotatably mounted on the first horizontal lifting beam (111); and The first column (112) has one end set on the top of the first insulating support column (20) and the other end set on the first horizontal beam (111). The position of the first column (112) along the axial direction of the first horizontal beam (111) is adjustable. The second support (21) includes: The second horizontal lifting beam (211) extends axially along the cross-duct busbar (10), and the second pulley block is rotatably mounted on the second horizontal lifting beam (211); and The second column (212) is provided with a plurality of second columns (212) along its circumference at the top of the second insulating support column (30), and the top of the second column (212) is connected to the second horizontal beam (211); The second support (21) also includes a transition beam (213), which is disposed on the second horizontal suspension beam (211); there are three second columns (212), two of which are disposed at both ends of the transition beam (213) along its axial direction, and one of which is disposed on the second horizontal suspension beam (211).

2. The hoisting device for the cross-road busbar according to claim 1, characterized in that, The top of the first column (112) is connected to the top of the first insulating support column (20) by bolts.

3. The hoisting device for the cross-road busbar according to claim 1, characterized in that, The first pulley group includes two first pulleys (12), and the first horizontal lifting beam (111) is rotatably mounted with one of the first pulleys (12) at each end along its axial direction. The first lifting rope (13) is wound around the two first pulleys (12) in sequence.

4. The hoisting device for the cross-road busbar according to claim 1, characterized in that, The second support (21) also includes: A locking plate (214) is provided at the bottom end of the second column (212) and forms a locking groove (2140) with the locking plate (214). The outer edge of the top end of the second insulating support column (30) can extend into the locking groove (2140). A through hole (2141) communicating with the locking groove (2140) is provided on the locking plate (214). The locking screw (215) is movably inserted into the through hole (2141) and can press the outer edge of the top of the second insulating support (30) against the locking groove (2140).

5. The hoisting device for the cross-road busbar according to claim 4, characterized in that, The second support (21) also includes a clamp (24) which is arranged around the circumference of the second insulating support (30) and connected to a plurality of locking plates (214) respectively. The clamp (24) is configured to bring the plurality of locking plates (214) close to each other to hold the outer edge of the top of the second insulating support (30).

6. The hoisting device for the cross-road busbar according to claim 1, characterized in that, The second pulley group includes two second pulleys (22), and the second horizontal lifting beam (211) is rotatably mounted with a second pulley (22) at each end along its axial direction. The second lifting rope (23) is wound around the two second pulleys (22) in sequence.

7. The hoisting device for the cross-line main pipe according to any one of claims 1 to 6, characterized in that, The hoisting device for the cross-road busbar also includes a hook (4), and the hook (4) is installed at one end of the first hoisting rope (13) and the second hoisting rope (23). The hook (4) can be fixedly connected to the cross-road busbar (10).

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