A synchronous lifting and transferring device and method for a gas insulated switchgear

Abstract

The application belongs to the technical field of transfer devices, and provides a gas insulated switchgear synchronous lifting transfer device and method. The lifting transfer device provided in the application comprises two racks, each of which is provided with a connecting rod mechanism, and the two ends of the connecting rod mechanism are respectively provided with front wheels and rear wheels. During lifting and transfer, the two racks are fixed on the two sides of the gas insulated switchgear, and the two racks can be lifted by adjusting the connecting rod mechanism, so that the lifting of the gas insulated switchgear is realized. The lifted gas insulated switchgear is transferred by means of the front wheels and the rear wheels, and it is not necessary to operate by a dedicated person, so that the problems of switchgear falling and tilting caused by improper operation in the traditional crane lifting and transfer mode are avoided, and the safety is improved. In addition, the lifting transfer device provided in the application has a simple structure and is easy to operate. During lifting and transfer, the two racks only need to be fixed on the two sides of the gas insulated switchgear, and the space requirement for the working site is not high, and it is not limited to a specific site.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of transfer devices, and particularly relates to a synchronous lifting transfer device and method for a gas insulated switchgear. BACKGROUND

[0002] The gas insulated switchgear needs to be transferred during assembly, testing and transportation.

[0003] The inventor finds that the conventional lifting transfer by a travelling crane needs to be operated by a special person, and if the operation is improper, the switchgear is prone to falling and tilting, and the safety is poor; the lifting equipment such as the travelling crane for lifting the switchgear has a relatively complex structure and a high cost, and the lifting equipment such as the travelling crane has a large size and is harsh in requirements for the space of a working site, and the use of the lifting equipment such as the travelling crane is limited to a specific site, and the transfer of the switchgear cannot be realized if the transfer range of the travelling crane is exceeded. SUMMARY

[0004] The present application provides a synchronous lifting transfer device and method for a gas insulated switchgear, which do not need to be operated by a special person, avoid the problems of falling and tilting of the switchgear due to improper operation in the conventional lifting transfer by a travelling crane, and improve the safety; and the lifting transfer device has a simple structure and is easy to operate, and only needs to be fixed at both sides of the gas insulated switchgear during lifting and transfer, and is not harsh in requirements for the space of a working site and is not limited to a specific site.

[0005] To achieve the above-mentioned purpose, in a first aspect, the present application provides a synchronous lifting transfer device for a gas insulated switchgear, which adopts the following technical scheme:

[0006] The synchronous lifting transfer device for a gas insulated switchgear comprises two racks, and a connecting rod mechanism is arranged on each rack;

[0007] Two ends of the connecting rod mechanism are respectively provided with front wheels and rear wheels; the two racks are fixed at both sides of the gas insulated switchgear, the two racks can be lifted by adjusting the connecting rod mechanism, the lifting of the gas insulated switchgear is realized, and the lifted gas insulated switchgear is transferred by means of the front wheels and the rear wheels.

[0008] Further, the two ends of the rack are respectively provided with a first connecting rod and a fifth connecting rod through a first pin shaft; the first connecting rod is connected with a sixth connecting rod through a third pin shaft, and the fifth connecting rod is connected with a seventh connecting rod through a fifth pin shaft; the sixth connecting rod and the seventh connecting rod are jointly connected with a guide rod through a fourth pin shaft.

[0009] Further, the fourth connecting rod is provided with a pin shaft on the frame, the third connecting rod is connected to the fourth connecting rod through a second pin shaft, and the third connecting rod is connected to the guide rod through a pin shaft at an end away from the fourth pin shaft.

[0010] Further, the pin shaft at the connection between the third connecting rod and the fourth connecting rod is also connected with a second connecting rod, and the second connecting rod is provided with a handle at an end away from the third connecting rod.

[0011] Further, the handle and the second connecting rod are connected through a pin shaft, and a handle connecting rod is also connected to the pin shaft at the connection between the handle and the second connecting rod, and the handle connecting rod is connected to the frame through a pin shaft at an end away from the handle.

[0012] Further, the front wheel is a universal wheel.

[0013] Further, the frame is fixed on both sides of the gas insulated switch cabinet through a locking device.

[0014] Further, a pin hole is formed in the side wall of the gas insulated switch cabinet, the locking device comprises a positioning pin sleeved in the pin hole, a T-shaped bolt sleeved in the positioning pin, and a butterfly nut provided on the T-shaped bolt.

[0015] Further, a positioning boss is provided on the positioning pin to limit the rotation of the T-shaped bolt within a range of 0°-90°, and the T-shaped bolt is perpendicular to the positioning pin when it is rotated, and the butterfly nut is fastened at this time to realize the compression of the frame and the side wall of the gas insulated switch cabinet.

[0016] To achieve the above-mentioned purpose, in the second aspect, the application further provides a gas insulated switch cabinet synchronous lifting and transferring method, which adopts the following technical scheme:

[0017] A gas insulated switch cabinet synchronous lifting and transferring method adopts the gas insulated switch cabinet synchronous lifting and transferring device as described in the first aspect, adjusts the connecting rod mechanism to make the two frames rise, realizes the lifting of the gas insulated switch cabinet, and transfers the lifted gas insulated switch cabinet with the help of the front wheel and the rear wheel.

[0018] Compared with the prior art, the application has the following beneficial effects:

[0019] The lifting and transferring device provided in the application comprises two racks, each of which is provided with a connecting rod mechanism, and the two ends of the connecting rod mechanism are respectively provided with front wheels and rear wheels; during lifting and transferring, the two racks are fixed on the two sides of the gas insulated switch cabinet respectively, and the two racks can be lifted by adjusting the connecting rod mechanism, so that the gas insulated switch cabinet is lifted, and the lifted gas insulated switch cabinet is transferred by means of the front wheels and the rear wheels, without the need for special operation, so that the problems of falling and tilting of the switch cabinet caused by improper operation in the traditional lifting and transferring mode by the crane are avoided, and the safety is improved; and the lifting and transferring device has simple structure and is easy to operate, and only the two racks need to be fixed on the two sides of the gas insulated switch cabinet during lifting and transferring, so that the space requirement for the working site is not high, and the device is not limited to specific sites; the device is used for lifting the switch cabinet to a certain height and then transferring the switch cabinet, is safe and reliable, and improves the working efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0020] The drawings accompanying part of the specification of the present embodiment serve to provide a further understanding of the present embodiment, and the schematic embodiments of the present embodiment and the description thereof serve to explain the present embodiment, and do not constitute an improper limitation on the present embodiment.

[0021] Figure 1 It is an installation front view of the embodiment 1 of the present application;

[0022] Figure 2 It is an installation left view of the embodiment 1 of the present application;

[0023] Figure 3 It is an installation bottom view of the embodiment 1 of the present application;

[0024] Figure 4 It is a falling state schematic view of the embodiment 1 of the present application;

[0025] Figure 5 It is a lifting state schematic view of the embodiment 1 of the present application;

[0026] Figure 6 It is a side view of the embodiment 1 of the present application;

[0027] Figure 7 It is a cross-sectional view of the vehicle body locking device of the embodiment 1 of the present application;

[0028] Figure 8 It is a T-shaped bolt pressing state view of the vehicle body locking device of the embodiment 1 of the present application;

[0029] Figure 9 It is a T-shaped bolt releasing state view of the vehicle body locking device of the embodiment 1 of the present application;

[0030] Figure 10 It is a limiting boss schematic view of the embodiment 1 of the present application;

[0031] Wherein, 1, gas insulated switchgear; 2, lifting and transferring device; 21, rack; 22, locking device; 2201, positioning pin; 2202, T-shaped bolt; 2203, butterfly nut; 2204, pin hole; 2205, limiting boss; 23, first connecting rod; 24, first pin shaft; 25, front wheel; 26, handle; 27, second connecting rod; 28, guide rod; 29, third connecting rod; 210, fourth connecting rod; 211, fifth connecting rod; 212, rear wheel; 213, second pin shaft; 214, sixth connecting rod; 215, third pin shaft; 216, fourth pin shaft; 217, seventh connecting rod; 218, fifth pin shaft. DETAILED DESCRIPTION

[0032] The application will be further described below in connection with the drawings and examples.

[0033] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0034] Example 1:

[0035] The conventional overhead traveling crane lifting and transferring needs to be operated by a special person. If the operation is not proper, the switchgear is prone to falling and tilting, and the safety is poor. Moreover, the overhead traveling crane lifting equipment is large in size, and the space requirement for the working site is harsh, and the use of the overhead traveling crane lifting equipment is limited to a specific site. In view of the above problems, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , the embodiment provides a gas insulated switchgear synchronous lifting and transferring device, which is used for realizing small height lifting of the gas insulated switchgear 1 and transferring according to actual needs, and has high safety. The lifting and transferring device 2 comprises two racks 21, and a connecting rod mechanism is arranged on each rack 21.

[0036] Two ends of the connecting rod mechanism are respectively provided with front wheels 25 and rear wheels 212; two racks 21 are respectively fixed on two sides of the gas insulated switchgear 1, and the two racks 21 can be lifted by adjusting the connecting rod mechanism, so that the gas insulated switchgear 1 is lifted, and the lifted gas insulated switchgear 1 is transported by means of the front wheels 25 and the rear wheels 212. Specifically, during lifting and transporting, the two racks 21 are respectively fixed on two sides of the gas insulated switchgear 1, and the two racks 21 can be lifted by adjusting the connecting rod mechanism, so that the gas insulated switchgear 1 is lifted, and the lifted gas insulated switchgear 1 is transported by means of the front wheels 25 and the rear wheels 212. No special operation is required, and problems such as falling and tilting of the switchgear caused by improper operation in the traditional crane lifting and transporting mode are avoided, and safety is improved. Moreover, the lifting and transporting device 2 in the embodiment has a simple structure and is easy to operate. During lifting and transporting, the two racks 21 are only required to be respectively fixed on two sides of the gas insulated switchgear 1, and the space requirement for the working site is not high, and is not limited to a specific site.

[0037] Optionally, two ends of the rack 21 are respectively provided with a first connecting rod 23 and a fifth connecting rod 211 through a first pin shaft 24. The first connecting rod 23 is connected with a sixth connecting rod 214 through a third pin shaft 215, and the fifth connecting rod 211 is connected with a seventh connecting rod 217 through a fifth pin shaft 218. The sixth connecting rod 214 and the seventh connecting rod 217 are commonly connected with a guide rod 28 through a fourth pin shaft 216. It can be understood that the guide rod 28 can be slidably arranged on the rack 21 through a sleeve or the like.

[0038] Specifically, when the guide rod 28 rises, the first connecting rod 23 and the fifth connecting rod 211 are respectively rotated around the corresponding first pin shaft 24, at this time, the front wheels 25 and the rear wheels 212 descend, the rack 21 rises, and the gas insulated switchgear 1 is lifted. Similarly, when the guide rod 28 descends, the first connecting rod 23 and the fifth connecting rod 211 are respectively rotated around the corresponding first pin shaft 24, at this time, the front wheels 25 and the rear wheels 212 rise, the rack 21 descends, and the gas insulated switchgear 1 is lowered.

[0039] Optionally, the fourth connecting rod 210 is arranged on the frame 21 through a pin shaft, the third connecting rod 29 is connected to the fourth connecting rod 210 through a second pin shaft 213, and the third connecting rod 29 is connected to the guide rod 28 through a pin shaft at an end away from the fourth pin shaft 216. The pin shaft at the connection between the third connecting rod 29 and the fourth connecting rod 210 is also connected to the second connecting rod 27, and the second connecting rod 27 is provided with a handle 26 at an end away from the third connecting rod 29. The handle 26 and the second connecting rod 27 are connected through a pin shaft, and a handle connecting rod is further connected to the pin shaft at the connection between the handle 26 and the second connecting rod 27, and the handle connecting rod is connected to the frame 21 through a pin shaft at an end away from the handle 26.

[0040] Specifically, when the second connecting rod 27 is pushed through the handle 26, the included angle between the fourth connecting rod 210 and the third connecting rod 29 decreases, the guide rod 28 descends, at this time, the guide rod 28 drives the first connecting rod 23 and the fifth connecting rod 211 to rotate around the corresponding first pin shaft 24, respectively, the front wheel 25 and the rear wheel 212 rise, the frame 21 descends, drives the gas insulated switchgear 1 to descend, and the descending of the gas insulated switchgear 1 is realized. Similarly, when the second connecting rod 27 is pulled through the handle 26, the included angle between the fourth connecting rod 210 and the third connecting rod 29 increases, the guide rod 28 rises, at this time, the guide rod 28 drives the first connecting rod 23 and the fifth connecting rod 211 to rotate around the corresponding first pin shaft 24, respectively, the front wheel 25 and the rear wheel 212 descend, the frame 21 rises, drives the gas insulated switchgear 1 to rise, and the rising of the gas insulated switchgear 1 is realized.

[0041] It can be understood that when the handle 26 is manually pressed downward, the guide rod 28 drives the first connecting rod 23 and the fifth connecting rod 211 to swing simultaneously, drives the frame 21 to move upward, when the lifting reaches the limit position, the axes of the fourth connecting rod 210 and the third connecting rod 29 are located on the same straight line, so that the self-locking of the upper limit position is realized. When the handle 26 is manually lifted upward, the mechanism is unlocked, and the frame 21 falls down.

[0042] Optionally, the front wheel 25 is a universal wheel, which is convenient for route change during operation.

[0043] In some other embodiments, the rack 21 is fixed on both sides of the gas insulated switchgear 1 by locking devices 22. Alternatively, the locking devices 22 can be directly achieved by conventional bolt connection; or a pin hole 2204 can be formed on the side wall of the gas insulated switchgear 1, the locking device 22 includes a positioning pin 2201 sleeved in the pin hole 2204, a T-shaped bolt 2202 sleeved in the positioning pin 2201, and a butterfly nut 2203 arranged on the T-shaped bolt 2202; specifically, the positioning pin 2201 is provided with a positioning boss 2205, and the T-shaped bolt 2202 is limited to rotate within a range of 0°-90°; the T-shaped bolt 2202 is rotated to be perpendicular to the positioning pin 2201, at this time the butterfly nut 2203 is fastened to realize the compression of the rack 21 and the side wall of the gas insulated switchgear 1.

[0044] Two positioning pin holes similar to the shape of the head of the T-shaped bolt but 0.5 mm larger than the shaft of the positioning pin hole are arranged at the corresponding positions on both sides of the switchgear body, which can ensure that the head of the T-shaped bolt, the positioning pin and the positioning pin hole are inserted in parallel. Two limiting bosses 2205 are arranged on the positioning pin 2201, when the butterfly nut 2203 is tightened clockwise and a pulling force is applied to the side of the butterfly nut along the axis of the T-shaped bolt 2202, the head of the T-shaped bolt is sunk into the range of the two limiting bosses, when the head of the T-shaped bolt is in a 90° state with the positioning pin hole, the head of the T-shaped bolt cannot be pulled out of the hole, and the T-shaped bolt cannot continue to rotate due to the limitation of the limiting boss, at this time the butterfly nut can continue to be tightened clockwise, and then the compression of the head of the T-shaped bolt and the side wall of the cabinet body is completed. When the butterfly nut is loosened counterclockwise, the T-shaped bolt is rotated counterclockwise, and at the same time a pulling force is applied to the side of the butterfly nut along the axis of the T-shaped bolt 2202, when the head of the T-shaped bolt returns to the parallel state with the positioning pin hole, the T-shaped bolt cannot continue to rotate due to the limitation of the limiting boss, and the butterfly nut is continued to be loosened counterclockwise.

[0045] Embodiment 2:

[0046] The embodiment provides a synchronous lifting and transferring method of a gas insulated switchgear, which adopts the synchronous lifting and transferring device of the gas insulated switchgear as described in embodiment 1, the two racks 21 are lifted by adjusting the connecting rod mechanism, the lifting of the gas insulated switchgear 1 is realized, and the lifted gas insulated switchgear 1 is transferred by means of the front wheels 25 and the rear wheels 212.

[0047] The above only describes the preferred embodiments of the present embodiment and is not used to limit the present embodiment. For those skilled in the art, the present embodiment can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present embodiment shall be included in the protection scope of the present embodiment.

Claims

1. A synchronous lifting and transfer device for gas-insulated switchgear, characterized in that, It includes two frames, each equipped with a linkage mechanism; The linkage mechanism is equipped with a front wheel and a rear wheel at both ends; the two frames are fixed on both sides of the gas-insulated switchgear. By adjusting the linkage mechanism, the two frames can be raised to lift the gas-insulated switchgear. The lifted gas-insulated switchgear is then transported using the front and rear wheels. The frame has a first connecting rod and a fifth connecting rod rotatably mounted at both ends via a first pin. The first connecting rod is connected to a sixth connecting rod via a third pin, and the fifth connecting rod is connected to a seventh connecting rod via a fifth pin. The sixth and seventh connecting rods are connected to a guide rod via a fourth pin. A fourth connecting rod is mounted on the frame via a pin, and the fourth connecting rod is connected to a third connecting rod via a second pin. The end of the third connecting rod away from the fourth connecting rod is connected to the end of the guide rod away from the fourth pin via a pin. A second connecting rod is also connected to the pin at the connection between the third and fourth connecting rods, and a handle is provided at the end of the second connecting rod away from the third connecting rod. When the frame is raised to the limit position, the axes of the fourth link and the third link are on the same straight line, thereby achieving self-locking at the upper limit position; The frame is fixed to both sides of the gas-insulated switchgear by a locking device; The side wall of the gas-insulated switchgear has a pin hole, and the locking device includes a positioning pin sleeved in the pin hole, a T-bolt sleeved in the positioning pin, and a wing nut set on the T-bolt.

2. The synchronous lifting and transfer device for gas-insulated switchgear as described in claim 1, characterized in that, The handle and the second link are connected by a pin. A handle link is also connected to the pin connecting the handle and the second link. The end of the handle link away from the handle is connected to the frame by a pin.

3. The synchronous lifting and transfer device for gas-insulated switchgear as described in claim 1, characterized in that, The front wheels are swivel wheels.

4. The synchronous lifting and transfer device for gas-insulated switchgear as described in claim 1, characterized in that, The positioning pin is provided with a positioning boss, which restricts the T-bolt to rotate within the range of 0° to 90°; when the T-bolt is rotated to be perpendicular to the positioning pin, the wing nut is tightened to achieve the pressing of the frame with the side wall of the gas-insulated switch cabinet.

5. A method for synchronously lifting and transferring gas-insulated switchgear, characterized in that, The synchronous lifting and transfer device for gas-insulated switchgear as described in any one of claims 1-4 is adopted. By adjusting the linkage mechanism, the two frames are raised to realize the lifting of the gas-insulated switchgear. The front and rear wheels are used to transfer the lifted gas-insulated switchgear.

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