Lifting device for replacing high-voltage circuit breaker

Abstract

The utility model relates to a lifting device for replacing a high-voltage circuit breaker. The lifting device comprises a bearing assembly, a hoisting assembly and a lifting assembly, the bearing assembly comprises a bearing platform and a first driving part. The first driving part is arranged on the lower side of the bearing platform. The lifting assembly comprises a stand column, a lifting arm and a lifting appliance. One end of the stand column is connected to the upper side of the bearing platform and can rotate along the axis of the stand column. The lifting arm is connected to the end, away from the bearing platform, of the stand column, and the lifting arm can stretch out of the bearing platform so that the lifting arm can lift objects outside the bearing platform to the bearing platform. The lifting appliance is connected to one end of the lifting arm away from the upright. The lifting assembly comprises a lifting table and a second driving part. The lifting platform is arranged on the upper side of the bearing platform and can ascend and descend in the direction perpendicular to the bearing platform. And the second driving part is arranged on the bearing platform. The device is small in occupied space, convenient to use during operation and capable of being operated by one person, manpower is greatly saved, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting devices, in particular to a lifting device used for replacing a high-voltage circuit breaker. Background Art

[0002] High-voltage vacuum circuit breakers are generally large in size and heavy in weight. Existing circuit breakers are mostly transported by cranes and hydraulic forklifts. However, after the circuit breaker is transported to the distribution room, it is placed on the ground. There is no special lifting equipment in the room, and the narrow space is not suitable for installation. When replacing the circuit breaker, additional manpower is required to first lift the circuit breaker from the ground to the operating trolley, and then push the circuit breaker into the high-voltage cabinet.

[0003] For example, an existing model is the KYN28A-12 high-voltage cabinet, which uses a 12KV / 1250A circuit breaker and weighs about 140KG. It usually requires four people to lift it from the ground to the operating trolley (the height of the trolley is about 700mm-800mm). The height of the trolley is adjusted by the screw adjustment device on the operating trolley. When the staff observes that the circuit breaker is flush with the height of the switch cabinet, the staff pushes the circuit breaker into the high-voltage cabinet.

[0004] In the above method, not only is it easy to cause injuries during the transportation process, which is not conducive to construction safety, but also in the process of adjusting the height of the operating trolley, how to make it flush with the height of the switch cabinet requires human observation through the naked eye, which has a large error and can easily cause damage to the switch cabinet and circuit breaker if the operation is improper. Therefore, there is an urgent need for a device that can safely and conveniently replace high-voltage circuit breakers. Utility Model Content

[0005] In order to replace a high-voltage circuit breaker safely and conveniently, the present application provides a lifting device for replacing a high-voltage circuit breaker.

[0006] The lifting device for replacing a high-voltage circuit breaker provided by the utility model adopts the following technical solution:

[0007] A lifting device for replacing a high-voltage circuit breaker comprises a bearing assembly, a lifting assembly and a lifting assembly; wherein the bearing assembly comprises a bearing platform and a first driving component; the first driving component is arranged at the lower side of the bearing platform and is used to drive the bearing platform to move; the lifting assembly comprises a lifting platform and a second driving component; the lifting platform is arranged at the upper side of the bearing platform and can be lifted and lowered in a direction perpendicular to the bearing platform; the second driving component is arranged on the bearing platform and is used to drive the lifting platform to lift and lower; the lifting assembly is used to lift objects onto the lifting platform or unload objects from the lifting platform; the lifting assembly comprises a column, a lifting arm and a sling; one end of the column is connected to the upper side of the bearing platform and can rotate around a first axis; the first axis is located at the connection between the column and the bearing platform and is perpendicular to the upper side of the bearing platform; the lifting arm is connected to one end of the column away from the bearing platform, and the lifting arm can extend outside the bearing platform so that it can lift objects outside the bearing platform to the lifting platform; the sling is connected to one end of the lifting arm away from the column.

[0008] Optionally, one end of the column close to the bearing platform is hinged to the bearing platform, so that the angle of the column relative to the bearing platform can be adjusted.

[0009] Optionally, the device further comprises a limiting component, and the limiting component is used to limit the position of the column.

[0010] Optionally, the limiting assembly includes a threaded member and two limiting plates; the two limiting plates are arranged in parallel and at intervals on the upper side of the supporting platform, and one end of the column connected to the supporting platform is accommodated between the two; one end of the threaded member is fixedly connected to one of the limiting plates, and the other end is threadedly connected to the other limiting plate; by rotating the threaded member, the distance between the two limiting plates can be expanded or reduced to loosen or lock the column.

[0011] Optionally, the boom is a telescopic boom.

[0012] Optionally, the boom and the column are detachably connected.

[0013] Optionally, the sling includes a crossbeam, a connecting piece, a screw rod and a plurality of hooks; the connecting piece is connected to the boom; the crossbeam is slidably connected to the connecting piece; the screw rod is mounted on the crossbeam, passes through the crossbeam and is threadedly connected to the crossbeam; a plurality of hooks are connected to the lower side of the crossbeam; the relative position between the crossbeam and the connecting piece can be adjusted by rotating the screw rod, thereby adjusting the overall balance of the sling.

[0014] Optionally, the lifting platform is a scissors-type lifting platform; the second driving component is a foot pedal, the foot pedal is transmission-connected to the scissors-type lifting platform, and the installation position of the foot pedal is close to the upper side of the carrying platform; the scissors-type lifting platform can be raised and lowered by shaking the foot pedal.

[0015] Optionally, a plurality of enclosures and a plurality of fixing pins are provided on the upper side of the lifting platform; and a receiving space for placing objects is formed between the enclosures and the fixing pins.

[0016] Optionally, the first driving component is a universal wheel; a plurality of the universal wheels are installed on the lower side of the carrying platform.

[0017] As described above, the lifting device for replacing a high-voltage circuit breaker of the utility model has at least the following beneficial effects:

[0018] 1. The angle and direction of the boom and column in the lifting device for replacing high-voltage circuit breakers of the utility model can be adjusted, and can be folded, which occupies a small space, is easy to use during operation, and can be operated by a single person, which greatly saves manpower and reduces the labor intensity of the staff.

[0019] 2. The lifting assembly and the lifting assembly of the lifting device for replacing high-voltage circuit breakers of the utility model counterweight each other, so that the device does not need to be provided with legs for support, which is conducive to saving space and is suitable for more narrow working environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of an embodiment of the utility model for reflecting the overall structure of a lifting device for replacing a high-voltage circuit breaker.

[0021] Figure 2 It is a schematic diagram of the embodiment of the utility model for reflecting the structure of the sling.

[0022] Figure 3 It is a schematic diagram of the lifting component structure used in the embodiment of the utility model.

[0023] Figure numerals: 1. load-bearing platform; 2. first driving component; 3. column; 4. boom; 41. telescopic unit; 5. sling; 51. beam; 52. connecting piece; 53. screw rod; 54. hook; 55. handle; 56. hook; 6. limit plate; 7. long handle; 8. hydraulic cylinder; 9. lifting platform; 10. second driving component; 11. foot pedal; 12. enclosure; 13. fixing pin. DETAILED DESCRIPTION

[0024] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and the features in the embodiments can be combined with each other without conflict. It should also be understood that the terms used in the embodiments of the present invention are intended to describe specific implementation schemes, rather than to limit the scope of protection of the present invention. The test methods for which specific conditions are not specified in the following examples are usually carried out under conventional conditions or under the conditions recommended by the manufacturers.

[0025] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantial change of the technical content.

[0026] The utility model provides a lifting device for replacing a high-voltage circuit breaker, which comprises a bearing component, a hoisting component and a lifting component.

[0027] For details, please refer to Figure 1 The bearing assembly includes a bearing platform 1 and a first driving component 2. The first driving component 2 is arranged at the lower side of the bearing platform 1 and is used to drive the bearing platform 1 to move. The bearing platform 1 is a rectangular flat plate, and its upper side is used to install the lifting assembly and the lifting assembly.

[0028] In this embodiment, the first driving component 2 is a universal wheel. Figure 1 There are two pairs of universal wheels installed on the lower side of the carrying platform 1.

[0029] In some other embodiments of the present invention, the first driving component 2 may be an electric wheel, a crawler track or other device capable of driving the carrying platform 1 to move.

[0030] Please refer to Figure 1The lifting assembly includes a column 3, a boom 4, a sling 5 and a limit assembly. One end of the column 3 is connected to the upper side of the load-bearing platform 1 and can rotate along its own axis. The boom 4 is connected to the end of the column 3 away from the load-bearing platform 1, and the boom 4 can extend outside the load-bearing platform 1 so that it can lift objects outside the load-bearing platform 1 to the lifting platform 9. The sling 5 is connected to the end of the boom 4 away from the column 3.

[0031] Specifically, the lower end of the column 3 is hinged to the upper side of the carrying platform 1 through a turntable, so that the column 3 can rotate around a first axis. The first axis is an axis perpendicular to the upper side of the carrying platform 1 at the connection between the lower end of the column 3 and the upper side of the carrying platform 1. At the same time, the lower end of the column 3 is hinged to the turntable, so that the angle between the column 3 and the carrying platform 1 can be adjusted.

[0032] The function of the limiting assembly is to limit the column 3 so that the angle between the column 3 and the load-bearing platform 1 is fixed. The limiting assembly includes a threaded member and two limiting plates 6. The two limiting plates 6 are arranged in parallel and at intervals on the upper side of the load-bearing platform 1. The two limiting plates 6 are welded and fixed to the upper side of the load-bearing platform 1 perpendicularly. The lower end of the column 3 is located between the two limiting plates 6. One end of the threaded member is rotatably connected to one limiting plate 6, and the other end is threadedly connected to the other limiting plate 6. By rotating the threaded member, the interval between the two limiting plates 6 can be expanded or reduced, thereby loosening or locking the lower end of the column 3.

[0033] In this embodiment, the threaded member can be a stud, one end of which is rotatably connected to a stop plate 6, and the other end is threadedly connected to the other stop plate 6. A long handle 7 is connected to the side of the stud, so that the staff can rotate the stud without bending over or using other tools, and can conveniently loosen or lock the lower section 32 of the column 3, and adjust the angle between the column 3 and the supporting platform 1.

[0034] The boom 4 in the present device is a telescopic boom 4. The boom 4 comprises a plurality of telescopic units 41, each of which is hollow and has a gradually decreasing inner diameter. The telescopic units 41 are nested one by one in the order of inner diameter from large to small, so that the boom 4 can be telescoped. Figure 1 As shown, in this embodiment, the boom 4 is composed of three telescopic units 41.

[0035] Furthermore, in order to adjust the angle between the boom 4 and the column 3, one end of the boom 4 close to the column 3 is hinged to the column 3. A hydraulic cylinder 8 is provided on the column 3. The cylinder body of the hydraulic cylinder 8 is fixed to the side of the column 3, and the piston rod of the hydraulic cylinder 8 is hinged to the side of the boom 4. By extending and shortening the piston rod of the hydraulic cylinder 8, the angle between the boom 4 and the column 3 can be adjusted.

[0036] The boom 4 is hinged to the column 3 and is detachably connected, that is, when the length of the boom 4 needs to be adjusted, the staff can first remove the boom 4 from the column 3, adjust it to a suitable length, and then install the boom 4 back on the column 3, which further improves the convenience of adjusting the length of the boom 4.

[0037] The angle between the column 3 and the carrying platform 1, as well as the angle between the boom 4 and the column 3 can be adjusted, so that the device can be folded and is suitable for use in a relatively narrow working space.

[0038] Please refer to Figure 2 The lifting device 5 includes a crossbeam 51 , a connecting piece 52 , a screw rod 53 and a plurality of hooks 54 .

[0039] The connecting member 52 is connected to the boom 4. The connection between the connecting member 52 and the boom 4 can be connected by a hook 56, or by other suitable components such as a lifting ring. In this embodiment, the connecting member 52 and the boom 4 are connected by a hook 56.

[0040] The cross beam 51 is slidably connected to the connecting member 52. The upper portion of the connecting member 52 is connected to the boom 4, and the lower portion is C-shaped, encircling the cross beam 51, and the cross beam 51 and the connecting member 52 can slide relative to each other.

[0041] The screw rod 53 is mounted on the cross beam 51, passes through the cross beam 51 and is threadedly connected to the cross beam 51, and one end of the screw rod 53 is connected to a handle 55 for rotating the rod. Since the position of the connecting member 52 is fixed after being connected to the boom 4, when the screw rod 53 is rotated, the cross beam 51 and the connecting member 52 slide relative to each other, so that the position of the connecting member 52 surrounding the cross beam 51 changes, and the balance state of the cross beam 51 is changed, and the balance of the entire sling 5 can be adjusted accordingly.

[0042] The sling 5 may have different structures such as a single hook 54, a double hook 54, or multiple hooks 54, depending on the object to be lifted. In this embodiment, the sling 5 has a double hook 54 structure, that is, there are two hooks 54. The two hooks 54 are respectively suspended below the two ends of the beam 51.

[0043] The lifting assembly includes a lifting platform 9 and a second driving component 10. The lifting platform 9 is arranged on the upper side of the carrying platform 1 and can be lifted and lowered in a direction perpendicular to the carrying platform 1. The second driving component 10 is arranged on the carrying platform 1 and is used to drive the lifting platform 9 to lift and lower.

[0044] In this embodiment, the lifting platform 9 is a scissor-type lifting platform 9. The second driving component 10 is a foot pedal 11, which is transmission-connected to the scissor-type lifting platform 9, and the installation position of the foot pedal 11 is close to the upper side of the carrying platform 1. The scissor-type lifting platform 9 can be raised and lowered by shaking the foot pedal 11.

[0045] Specifically, a standing space is reserved between the lifting platform 9 and the column 3 for workers to stand. The workers stand in the standing space and can raise and lower the scissor-type lifting platform 9 by shaking the foot pedal 11 in a stepping manner.

[0046] Since the lifting platform 9 needs to move objects in some cases, in order to prevent the objects placed on the lifting platform 9 from being offset or skewed due to bumps, a plurality of panels 12 and a plurality of fixing pins 13 are provided on the edge of the upper side of the lifting platform 9, and a storage space for accommodating objects is formed between the panels 12 and the fixing pins 13. The plurality of panels 12 are distributed in a rectangular shape, and each panel 12 is vertically welded to the upper side of the lifting platform 9, and the panels 12 can limit the objects in the storage space. The fixing pins 13 are all inserted into the upper side of the lifting platform 9, and a portion of them is retained outside the lifting platform 9. The portion of the fixing pins 13 retained outside the lifting platform 9 can limit the objects in the storage space.

[0047] Furthermore, the lifting assembly and the lifting assembly are respectively located in two opposite areas on the upper side of the load-bearing platform 1 (i.e. Figure 1 In this way, when the lifting assembly lifts an object, the lifting assembly can be used as a counterweight for the lifting assembly, and when an object is placed on the lifting assembly, the lifting assembly can be used as a counterweight for the lifting assembly. This makes it unnecessary to set legs for support, which is conducive to saving space.

[0048] The implementation principle of the lifting device for replacing a high-voltage circuit breaker of the utility model is as follows: when lifting a high-voltage circuit breaker, the staff first adjusts the direction and angle of the boom 4 and the column 3, and adjusts the length of the boom 4, and then hangs the high-voltage circuit breaker on the hook 56 of the hanger 5, and then adjusts the balance of the hanger 5 by rotating the handle 55 of the screw rod 53, and finally places the high-voltage circuit breaker on the upper side of the lifting platform 9, and limits the high-voltage circuit breaker by the fixing pin 13 and the enclosure 12.

[0049] When installing the high-voltage circuit breaker, the worker stands between the column 3 and the lifting platform 9, raises the lifting platform 9 to a position flush with the switch cabinet by stepping on the foot pedal 11, and then pushes the high-voltage circuit breaker into the switch cabinet.

[0050] The lifting device for replacing a high-voltage circuit breaker of the utility model can also be used for disassembling a high-voltage circuit breaker, that is, firstly lift the lifting platform 9 to a position flush with the switch cabinet, move the high-voltage circuit breaker to the upper side of the lifting platform 9, and the staff lowers the lifting platform 9 by stepping on the foot pedal 11, and then lifts the high-voltage circuit breaker to a designated position by the lifting assembly.

[0051] Furthermore, the lifting device for replacing a high-voltage circuit breaker of the utility model can also be used for lifting and transporting other objects with a similar shape to a high-voltage circuit breaker. The implementation principle is the same as the above-mentioned implementation principle and will not be repeated in this embodiment.

[0052] In summary, the angles and directions of the boom 4 and the column 3 in the lifting device for replacing a high-voltage circuit breaker of the utility model can be adjusted, and can be folded, occupying a small space, being easy to use during operation, and being operable by a single person, which greatly saves manpower and reduces the labor intensity of the staff.

[0053] In addition, the lifting assembly and the lifting assembly of the lifting device for replacing high-voltage circuit breakers of the utility model counterweight each other, so that the device does not need to be provided with legs for support, which is conducive to saving space and is suitable for more narrow working environments.

[0054] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A lifting device for replacing a high-voltage circuit breaker, characterized in that: It includes a load-bearing component, a lifting component and a hoisting component; wherein, The bearing assembly comprises a bearing platform (1) and a first driving component (2); the first driving component (2) is arranged on the lower side of the bearing platform (1) and is used to drive the bearing platform (1) to move; The lifting assembly comprises a lifting platform (9) and a second driving component (10); the lifting platform (9) is arranged on the upper side of the carrying platform (1) and can be lifted and lowered in a direction perpendicular to the carrying platform (1); the second driving component (10) is arranged on the carrying platform (1) and is used to drive the lifting platform (9) to lift and lower; The lifting assembly is used to lift objects onto the lifting platform (9) or to remove objects from the lifting platform (9); the lifting assembly comprises a column (3), a boom (4) and a sling (5); one end of the column (3) is connected to the upper side of the bearing platform (1) and is capable of rotating around a first axis; the first axis is located at the connection between the column (3) and the bearing platform (1) and is perpendicular to the upper side of the bearing platform (1); the boom (4) is connected to one end of the column (3) away from the bearing platform (1), and the boom (4) can extend outside the bearing platform (1) so as to enable it to lift objects outside the bearing platform (1) onto the lifting platform (9); the sling (5) is connected to one end of the boom (4) away from the column (3).

2. The lifting device for replacing a high-voltage circuit breaker according to claim 1, characterized in that: One end of the column (3) close to the carrying platform (1) is hinged to the carrying platform (1), so that the angle of the column (3) relative to the carrying platform (1) can be adjusted.

3. The lifting device for replacing a high-voltage circuit breaker according to claim 2, characterized in that: The device also comprises a limiting component, and the limiting component is used to limit the position of the column (3).

4. The lifting device for replacing a high-voltage circuit breaker according to claim 3, characterized in that: The limiting assembly comprises a threaded member and two limiting plates (6); The two limiting plates (6) are arranged in parallel and at intervals on the upper side of the bearing platform (1), and one end of the column (3) connected to the bearing platform (1) is accommodated between the two. One end of the threaded member is fixedly connected to one of the limit plates (6), and the other end is threadedly connected to another of the limit plates (6); the distance between the two limit plates (6) can be expanded or reduced by rotating the threaded member to loosen or lock the column (3).

5. The lifting device for replacing a high-voltage circuit breaker according to claim 1, characterized in that: The boom (4) is a telescopic boom (4).

6. The lifting device for replacing a high-voltage circuit breaker according to claim 5, characterized in that: The suspension arm (4) and the column (3) are detachably connected.

7. The lifting device for replacing a high-voltage circuit breaker according to claim 1, characterized in that: The lifting device (5) comprises a crossbeam (51), a connecting piece (52), a screw rod (53) and a plurality of lifting hooks (54); The connecting member (52) is connected to the boom (4); the crossbeam (51) is slidably connected to the connecting member (52); The screw rod (53) is mounted on the cross beam (51), passes through the cross beam (51) and is threadedly connected to the cross beam (51); a plurality of hooks (54) are connected to the lower side of the cross beam (51); By rotating the screw rod (53), the relative position between the crossbeam (51) and the connecting member (52) can be adjusted, thereby adjusting the overall balance of the sling (5).

8. The lifting device for replacing a high-voltage circuit breaker according to claim 1, characterized in that: The lifting platform (9) is a scissor-type lifting platform (9); The second driving component (10) is a foot pedal (11), the foot pedal (11) is transmission-connected to the scissor-type lifting platform (9), and the installation position of the foot pedal (11) is close to the upper side of the carrying platform (1); the scissor-type lifting platform (9) can be raised or lowered by shaking the foot pedal (11).

9. The lifting device for replacing a high-voltage circuit breaker according to claim 1 or 8, characterized in that: A plurality of enclosures (12) and a plurality of fixing pins (13) are arranged on the upper side of the lifting platform (9); a receiving space for placing objects is formed between the enclosures (12) and the fixing pins (13).

10. The lifting device for replacing a high-voltage circuit breaker according to claim 1, characterized in that: The first driving component (2) is a universal wheel; a plurality of the universal wheels are installed on the lower side of the carrying platform (1).

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