Hoisting device for flexible bus fitting

By designing a lifting device that includes a fixed base, a base plate, and a detachable lifting tool, additional lifting points are added to the flexible busbar fittings, solving the problem of inconvenience caused by a single lifting point and achieving a safe and reliable lifting effect.

CN223547561UActive Publication Date: 2025-11-14CHONGQING GRID CONSTR
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Patent Information

Application Number
CN202422714165.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-07
Publication Date
2025-11-14
Estimated Expiration
2034-11-07

AI Technical Summary

Technical Problem

During the hoisting process of the flexible busbar, the hardware only has one lifting point, which makes the hoisting work inconvenient and difficult to carry out smoothly.

Method used

Design a lifting device for flexible busbar fittings, including a fixed base, a base plate, a first connector and a detachable lifting tool. The fixed base and the base plate form a clamping structure, adding a detachable lifting point, and the connecting rod provides support and limit, ensuring the safety of the lifting.

Benefits of technology

Additional lifting points were provided for the hardware, ensuring smooth lifting operations and improving the safety and reliability of the lifting process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a hoisting device for a flexible bus fitting, which comprises a fixed seat, a bottom plate, a first connecting piece and a sling, the fixed seat is connected with the bottom plate through the first connecting piece, and the fixed seat and the bottom plate clamp the fitting; the lifting appliance is detachably mounted on the fixed seat in a hinged manner; according to the hoisting device for the flexible bus hardware fitting, the fixing seat is provided with the detachable hoisting tool, the fixing seat and the bottom plate are connected to form a clamping structure to be installed on the flexible bus hardware fitting, a detachable hoisting point is added for the hardware fitting, and the requirement of flexible bus hoisting construction for the number of the hoisting points is met; and the hoisting work can be smoothly carried out.
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Description

Technical Field

[0001] This utility model belongs to the technical field of hoisting equipment and relates to a hoisting device for flexible busbar fittings. Background Technology

[0002] A flexible busbar is an important conductor used in power systems to connect different electrical devices for collecting, distributing, and transmitting electrical energy. Flexible busbars are widely used in outdoor power distribution systems above 35kV and are typically installed on a frame. For transmission lines of ultra-high voltage and above, flexible busbars are quite heavy; a single-phase flexible busbar can weigh up to 5.6 tons, and they often have double strings of insulators. During installation, a crane is needed to smoothly lift them onto a 40-meter-high frame. The clamps (hardware) are then connected to the fixing rings on the frame before the hook can be removed. Therefore, the clamps must have at least two lifting points for successful lifting, but the hardware actually only has one lifting point.

[0003] To solve the above problems, a lifting device is needed that can provide more lifting points for the hardware to ensure that the lifting of the flexible busbar can be carried out smoothly. Utility Model Content

[0004] In view of this, the present invention provides a hoisting device for flexible busbar fittings. The fixed base is equipped with a detachable lifting tool. After the fixed base and the base plate are connected, they form a clamping structure and are installed on the fittings of the flexible busbar. This adds a detachable lifting point to the fittings, meets the requirements of the number of lifting points for flexible busbar hoisting construction, and ensures that the hoisting work can be carried out smoothly.

[0005] This utility model discloses a hoisting device for flexible busbar fittings, including a fixed base, a base plate, a first connecting member, and a hoisting device. The fixed base and the base plate are connected by the first connecting member, and the fixed base and the base plate clamp the fittings. The hoisting device is detachably hinged to the fixed base.

[0006] Furthermore, the fixed base is integrally formed with a mounting boss, and the lifting device is hinged to the mounting boss.

[0007] Furthermore, the fixing base is provided with a first connecting hole, and there are multiple first connecting holes. The multiple first connecting holes are evenly distributed on both sides of the mounting boss, and the number of first connectors corresponds one-to-one with the number of first connecting holes.

[0008] Furthermore, the base plate is provided with a first through hole, the number of the first through holes is the same as the number of the first connecting holes and their positions correspond one-to-one, and multiple first connectors pass through the first connecting holes and the first through holes in sequence to form a connection between the fixing base and the base plate.

[0009] Furthermore, it also includes a connecting rod, the two ends of which are respectively connected to the fixed base and the base plate, and the connecting rod abuts against the bottom surface of the fitting.

[0010] Furthermore, the lifting device includes a hook and a fixing rod. The lifting device has a "U"-shaped structure. The two ends of the "U" shape of the lifting device are respectively provided with a plug ring and a fixing ring. The end of the fixing rod passes through the plug ring and is fixed to the fixing ring. The hook is hinged to the mounting boss through the fixing rod.

[0011] Furthermore, there are two first connecting holes, which are respectively located on both sides of the mounting boss along the lateral direction, and the two first connecting holes are symmetrically arranged.

[0012] Furthermore, the fixing base is also provided with a second connecting hole, and the base plate is provided with a second through hole corresponding to the position of the second connecting hole. The two ends of the connecting rod are respectively connected to the second connecting hole and the second through hole.

[0013] Furthermore, the second connecting hole is located on the perpendicular bisector of the line connecting the two first connecting holes.

[0014] Furthermore, the first end of the fixing rod is provided with a handle and a limiting flange, the end of the fixing rod is provided with an external thread, the fixing ring is provided with an internal thread, the end of the connecting rod is connected to the fixing ring by a threaded connection, and the limiting flange abuts against the outside of the insertion ring to prevent the fixing rod from being limited in its own axial direction.

[0015] The beneficial effects of this utility model are:

[0016] This utility model discloses a lifting device for flexible busbar fittings. The fixed base is equipped with a detachable lifting tool. After the fixed base and the base plate are connected, they form a clamping structure that is installed on the flexible busbar fittings. This adds a detachable lifting point to the fittings, meeting the requirement for a sufficient number of lifting points during flexible busbar installation and ensuring smooth lifting operations. The connecting support rod of this utility model also provides bottom support and limiting for the flexible busbar fittings, further ensuring the safety of the lifting process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the installation structure of this utility model.

[0018] Figure 2 for Figure 1 Sectional view at point AA;

[0019] Figure 3 This is a schematic diagram of the structure of the fixing base of this utility model;

[0020] Figure 4 This is a side view of the fixing base of this utility model;

[0021] Figure 5 This is a bottom view of the fixing base of this utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the base plate of this utility model. Detailed Implementation

[0023] It should be noted that in the description of this specification, the terms "upper," "lower," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, 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, and therefore should not be construed as a limitation of this utility model. In this embodiment, the top and bottom of the fitting correspond... Figure 1 The top and bottom of the middle.

[0024] This utility model discloses a lifting device for flexible busbar fittings, including a fixed base 1, a base plate 7, a first connecting member 6, and a lifting device. The fixed base 1 and the base plate 7 are connected by the first connecting member 6, and the fixed base 1 and the base plate 7 clamp the fitting 5. The lifting device is detachably hinged to the fixed base 1. In this embodiment, the fixed base 1 and the base plate 7 are respectively attached to both sides of the fitting 5 to clamp the fitting 5. Then, the connecting member connects and locks the fixed base 1 and the base plate 7, thus clamping the fitting 5. The fixed base 1 is then installed on the fitting 5. The lifting device is then set on the fixed base 1 as a lifting point, providing a new lifting point for the flexible busbar. This meets the requirement for the number of lifting points in flexible busbar lifting construction, ensuring that the lifting work can be carried out smoothly.

[0025] In this embodiment, the fixed base 1 is integrally formed with a mounting boss 8, and the lifting device is hinged to the mounting boss 8. As shown in the figure, the fixed base 1 is integrally formed with a mounting boss 8, which is perpendicular to the fixed base 1, and the lifting device is mounted on the mounting boss 8. In this embodiment, the lifting device includes a hook 2 and a fixing rod 4. The lifting device has a "U"-shaped structure, with a connecting ring 11 and a fixing ring 12 respectively at both ends of the "U". The end of the fixing rod 4 passes through the connecting ring 11 and is fixed to the fixing ring 12. The hook 2 is hinged to the mounting boss 8 through the fixing rod 4. In this embodiment, the first end of the fixing rod 4 is provided with a handle and a limiting flange, the end of the fixing rod 4 is provided with an external thread, and the fixing ring 12 is provided with an internal thread. The end of the connecting rod is connected to the fixing ring 12 by a threaded connection. The limiting flange abuts against the outside of the connecting ring 11 to prevent the fixing rod 4 from being limited in its own axial direction. In this embodiment, a hole is made in the mounting boss 8, and the hook 2 is sleeved on the mounting boss 8 with the "U" shaped opening facing downward. Then, the end of the fixing rod 4 passes through the insertion ring 11 and the mounting boss 8 in sequence, and is screwed to the fixing ring 12 by means of a threaded connection. When the fixing rod 4 is screwed until the limiting flange abuts against the outer wall surface of the insertion ring 11, the screwing stops, and the hook 2 is installed in place.

[0026] In this embodiment, the fixing base 1 is provided with a first connecting hole 9, and there are multiple first connecting holes 9 evenly distributed on both sides of the mounting boss 8. The number of first connecting members 6 corresponds one-to-one with the number of the first connecting holes 9. In this embodiment, the base plate 7 is provided with a first through hole 13, and the number of first through holes 13 is the same as the number of first connecting holes 9 and their positions correspond one-to-one. The multiple first connecting members 6 pass through the first connecting holes 9 and the first through holes 13 in sequence to form a connection between the fixing base 1 and the base plate 7. In this embodiment, there are multiple ways to set the connecting holes. The conventional fitting 5 has two through holes. When setting the connecting holes, it is necessary to set them in accordance with the through holes on the two fittings 5. There are two first connecting holes 9. The two first connecting holes 9 are respectively set on both sides of the mounting boss 8 in the horizontal direction and are symmetrically arranged. This makes the force more even during hoisting. The above arrangement can be achieved by changing the size of the fixing seat 1 and adjusting the position of the mounting boss 8. Under this structure, the first connector 6 is passed through the first connecting hole 9, the through hole of the fitting 5 itself and the first through hole 13 in sequence and then locked and fixed. This makes the connection between the fixing seat 1 and the fitting 5 more firm and reliable.

[0027] If the fitting 5 itself does not have a through hole, it needs to be fixed with a connecting rod 3. In this embodiment, a connecting rod 3 is also included. The two ends of the connecting rod 3 are respectively connected to the fixing base 1 and the base plate 7, and the connecting rod 3 abuts against the bottom surface of the fitting 5. Since the fitting 5 itself does not have a through hole, the area of ​​the fixing base 1 needs to be increased so that the first connecting piece 6 abuts against the side wall of the fitting 5 after installation. At least two first connecting pieces 6 should be provided, and they should abut against two different side walls respectively. Together with the connecting rod 3 supported at the bottom of the fitting 5, a three-point fixation is formed. This can also achieve the fixation and installation of the fixing base 1 on the fitting 5. Of course, in this structure, there are at least two first connecting pieces 6, or more, but it is necessary to ensure that at least two side walls of the fitting 5 abut against the first connecting pieces 6 to ensure the reliability of the connection and thus ensure the installation of the hoisting. In this embodiment, the first connecting piece 6 is a bolt and nut. After the end of the bolt passes through the first connecting hole 9 and the first through hole 13, it is locked by the nut, which realizes the connection between the fixed seat 1 and the base plate 7. The fixed seat 1 and the base plate 7 can also clamp the hardware 5 to ensure the reliability of the installation of the fixed seat 1.

[0028] In this embodiment, the fixed base 1 is further provided with a second connecting hole 10, and the base plate 7 is provided with a second through hole corresponding to the position of the second connecting hole 10. The two ends of the connecting rod 3 are respectively connected to the second connecting hole 10 and the second through hole. In this embodiment, the second connecting hole 10 is located on the perpendicular bisector of the line connecting the two first connecting holes 9. In this embodiment, the connecting rod 3 can be a screw, a bolt, or a rod with threads at both ends. After the two ends of the connecting rod 3 pass through the second connecting hole 10 and the second through hole 14, they can be locked and limited by a nut or other structure. The connecting rod 3 can, firstly, support and pull the flexible busbar during hoisting; secondly, enhance the reliability of the connection structure between the fixed base 1 and the base plate 7; and thirdly, serve as a limit, further restricting the relative movement between the fixed base 1 and the hardware 5. The setting of the connecting rod further ensures the safety of hoisting.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A hoisting device for flexible busbar fittings, characterized in that: It includes a fixed base, a base plate, a first connecting member, and a lifting device. The fixed base and the base plate are connected by the first connecting member, and the fixed base and the base plate clamp the hardware. The lifting device is detachably hinged to the fixed base.

2. The hoisting device for flexible busbar fittings according to claim 1, characterized in that: The fixed base is integrally formed and has a mounting boss, and the lifting device is hinged to the mounting boss.

3. The hoisting device for flexible busbar fittings according to claim 2, characterized in that: The mounting base is provided with a first connecting hole, and there are multiple first connecting holes. The multiple first connecting holes are evenly distributed on both sides of the mounting boss. The number of first connectors corresponds one-to-one with the number of first connecting holes.

4. The hoisting device for flexible busbar fittings according to claim 3, characterized in that: The base plate is provided with a first through hole. The number of the first through holes is the same as the number of the first connecting holes and their positions correspond one-to-one. Multiple first connectors pass through the first connecting holes and the first through holes in sequence to form a connection between the fixing base and the base plate.

5. The hoisting device for flexible busbar fittings according to claim 4, characterized in that: It also includes a connecting rod, the two ends of which are respectively connected to the fixed base and the base plate, and the connecting rod abuts against the bottom surface of the hardware.

6. The hoisting device for flexible busbar fittings according to claim 2, characterized in that: The lifting device includes a hook and a fixing rod. The lifting device has a "U" shaped structure. The two ends of the "U" shape of the lifting device are respectively provided with a plug ring and a fixing ring. The end of the fixing rod passes through the plug ring and is fixed to the fixing ring. The hook is hinged to the mounting boss through the fixing rod.

7. The hoisting device for flexible busbar fittings according to claim 5, characterized in that: There are two first connecting holes, which are respectively located on both sides of the mounting boss along the lateral direction, and the two first connecting holes are symmetrically arranged.

8. The hoisting device for flexible busbar fittings according to claim 7, characterized in that: The fixing base is also provided with a second connecting hole, and the base plate is provided with a second through hole corresponding to the position of the second connecting hole. The two ends of the connecting rod are respectively connected to the second connecting hole and the second through hole.

9. The hoisting device for flexible busbar fittings according to claim 8, characterized in that: The second connecting hole is located on the perpendicular bisector of the line connecting the two first connecting holes.

10. The hoisting device for flexible busbar fittings according to claim 6, characterized in that: The first end of the fixing rod is provided with a handle and a limiting flange, the end of the fixing rod is provided with an external thread, the fixing ring is provided with an internal thread, the end of the fixing rod is connected to the fixing ring by a threaded connection, and the limiting flange abuts against the outside of the insertion ring to prevent the fixing rod from being limited in its own axial direction.