A switch cabinet hoisting mechanism, a hoisting method and a switch cabinet

Abstract

The application provides a switch cabinet hoisting mechanism, a hoisting method and a switch cabinet, which are used for hoisting the switch cabinet from the outdoor to the indoor through a window, and solve the problems of difficult cooperation between the indoor and the outdoor, low hoisting control accuracy and personal safety and property loss accidents caused thereby. The hoisting mechanism comprises a supporting piece, a cabinet top hoisting piece and a cabinet side hoisting piece. The supporting piece is hung on a hoisting arm by a steel wire main rope. The cabinet top hoisting piece comprises a hoisting rope and an auxiliary rope. The two ends of the auxiliary rope are installed on the cabinet top and the cabinet side wall, and the hoisting rope hooks the auxiliary rope. The cabinet side hoisting piece comprises a winch. The steel wire rope of the winch hooks the cabinet side wall of the switch cabinet. The top of the hoisting rope and the winch are installed on the supporting piece. In a non-working mode, the switch cabinet is vertically hoisted by the cabinet top hoisting piece, and the steel wire rope of the winch does not exert a pulling force on the lifting ring. In a working mode, the winch adjusts the unwinding length of the steel wire rope to change the inclination angle of the switch cabinet in cooperation with the cabinet top hoisting piece, so that the switch cabinet is obliquely extended into the window.

Description

Technical Field

[0001] This invention belongs to the technical field of switchgear installation engineering, specifically relating to a switchgear hoisting mechanism, hoisting method, and switchgear. Background Technology

[0002] Before installation, the switchgear needs to be unloaded from the vehicle or hoisted to the installation point. For some special installation points, such as multi-story buildings, where the window area is large enough and the height allows, a crane is needed to hoist the switchgear outside the window, and then the switchgear is lifted from the inside or carried by tools and dragged into the room. This process requires tacit, orderly, and precise cooperation between the crane operator and the indoor installation personnel. Furthermore, during the hoisting process, because the crane operator outside cannot see the position and angle of the switchgear inside the window, it is difficult to accurately control the boom to adjust the position of the switchgear, which may cause operational errors. In severe cases, the switchgear may even collide with people or walls, causing personal injury and property damage accidents. Summary of the Invention

[0003] The purpose of this invention is to provide a switchgear hoisting mechanism to solve the problems of difficulty in coordinating indoor and outdoor operations, low hoisting accuracy, and accidents causing personal safety and property damage during switchgear hoisting.

[0004] This invention provides the following technical solution:

[0005] A switchgear hoisting mechanism is used to hoist a switchgear from the outside through a window to the inside, the hoisting mechanism comprising:

[0006] An adjustment assembly for adjusting the tilt angle of a switchgear, the adjustment assembly including a support, a top-mounted suspension component, and a side-mounted suspension component;

[0007] The support component is suspended from the boom of the crane by a steel wire rope;

[0008] The cabinet top suspension device includes a suspension rope and an auxiliary rope. The two ends of the auxiliary rope are installed on the cabinet top and the cabinet side wall, and the suspension rope hooks onto the auxiliary rope.

[0009] The cabinet-side lifting component includes a winch, and the wire rope of the winch hooks onto the side wall of the switchgear.

[0010] Wherein: the top of the hoisting rope and the winch are both mounted on the support member;

[0011] The winch has a non-working mode and a working mode. In the non-working mode, the switch cabinet is lifted vertically by the top-mounted lifting device, and the wire rope of the winch does not apply tension to the lifting ring. In the working mode, the winch adjusts the unwinding length of the wire rope to cooperate with the top-mounted lifting device to change the tilt angle of the switch cabinet, so that the switch cabinet extends into the window at an angle.

[0012] Preferably, the ends of the auxiliary rope and the steel wire rope are both fixed on the same straight line on the side wall of the switch cabinet, and the fixing point of the auxiliary rope is located above the fixing point of the steel wire rope.

[0013] Preferably, the support includes a frame in which the winch is horizontally fixed; the frame has an open side for providing space for unwinding the wire rope.

[0014] Furthermore, it also includes an indoor transfer vehicle, on which a hydraulic cylinder is hinged. The piston rod of the hydraulic cylinder is hinged to a receiving platform at the top, and the other end of the receiving platform is hinged to the vehicle body. The hydraulic cylinder is used to lift the side of the receiving platform near the window, so that the receiving platform tilts to support the switch cabinet.

[0015] Preferably, the wire rope of the winch is hooked to the side wall of the switch cabinet by the first hook; the receiving platform is provided with a first groove, and a first stop is installed in the first groove. The first stop is drivenly connected to a first hydraulic cylinder in the receiving platform; when it is necessary to remove the first hook, the first stop is pushed out of the first groove by the first hydraulic cylinder to prevent the switch cabinet from sliding down.

[0016] Preferably, the lifting rope is hooked by the second hook to hold the auxiliary rope; the receiving platform is provided with a second groove, and a second stop is installed in the second groove. The second stop is drivenly connected to a second hydraulic cylinder in the receiving platform; when it is necessary to remove the second hook, the second stop is pushed out of the second groove by the second hydraulic cylinder to prevent the switch cabinet from sliding down.

[0017] Preferably, the receiving platform is further arrayed with rollers for supporting the switch cabinet, and the switch cabinet slides down the receiving platform along the rollers.

[0018] Preferably, when the switch cabinet is transferred to the receiving platform and slides along the receiving platform, the crane does not change the height of the support member.

[0019] The hoisting method of the above-mentioned switchgear hoisting mechanism includes the following steps:

[0020] The hoisting rope hooks onto the auxiliary rope, the wire rope hooks onto the right side wall of the switch cabinet, and the boom vertically lifts the switch cabinet to a position near the window.

[0021] Start the winch, wind up the wire rope, and adjust the switch cabinet to an inclined state so that the lower right corner of the switch cabinet first extends into the window. Then continue to lower the switch cabinet to the transfer angle. During this process, the boom adjusts the height of the attitude adjustment component accordingly to avoid friction between the wire rope, switch cabinet and the wall.

[0022] Push the transfer vehicle to the window so that the left side of the receiving platform extends out of the window. Start the hydraulic cylinder to lift the receiving platform until the angle between the receiving platform and the switch cabinet is consistent and supports the switch cabinet.

[0023] Remove the steel wire rope and auxiliary rope from the switch cabinet, and the transfer vehicle will transport the switch cabinet away.

[0024] The present invention also provides a switch cabinet, which is hoisted into the room from the window by the above-mentioned hoisting mechanism. The auxiliary rope is installed on the left and right side walls of the top surface of the switch cabinet. The auxiliary rope is triangular when it is hoisted by the hoisting rope. The steel wire rope is also installed on the right side wall of the switch cabinet. The steel wire rope is wound by the winch.

[0025] The beneficial effects of this invention are:

[0026] After the hoisting mechanism of this invention hoists the switch cabinet outside the window, it uses the tilting component to adjust the tilt angle of the switch cabinet and automatically extends the lower part of the switch cabinet into the window, making it convenient to receive the switch cabinet indoors. There is no need for manual pulling or holding of the switch cabinet and then dragging the switch cabinet from the window into the room. The operation is labor-saving and the switch cabinet is not easily damaged.

[0027] The tilt adjustment assembly of this invention includes a support member, a top-mounted suspension member, and a side-mounted suspension member. The support member is suspended from the boom of a crane by a main steel wire rope, and the boom changes the height, left and right orientation, and other positions of the support member. Both the top-mounted and side-mounted suspension members are mounted on the support member. The top-mounted suspension member is suspended from the top of the switchgear by a suspension rope and an auxiliary rope. The two ends of the auxiliary rope are attached to the top and side walls of the switchgear, so that when the switchgear tilts, the suspension rope can slide along the auxiliary rope to the top of the side wall. The side-mounted suspension member includes a winch. The winch's steel wire rope hooks onto the side wall of the switchgear, and the winch winds up the steel wire rope, thereby tilting the bottom of the switchgear into the window.

[0028] This invention utilizes an indoor transfer vehicle to move the tilted switchgear to the vehicle. A stop is installed on the vehicle to facilitate the removal of the winch's wire rope and auxiliary rope, thus detaching the switchgear from the boom. During this indoor operation, even if the outdoor boom cannot see the indoor situation, it does not affect the lifting progress. Because the switchgear is moved to the transfer vehicle and operated by personnel inside, the switchgear height remains unchanged, and the boom requires minimal movement (no adjustment of lifting coordinates is needed), reducing the difficulty of the lifting operation. Attached Figure Description

[0029] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0030] Figure 1 This is a schematic diagram of the boom lifting the switchgear according to the present invention;

[0031] Figure 2 This is a schematic diagram of the main structure of the support member of the present invention;

[0032] Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0033] Figure 4 This is a schematic diagram of the tilting assembly of the present invention tilting the switch cabinet into the window;

[0034] Figure 5 This is a schematic diagram illustrating the process of transferring the switch cabinet to the transfer vehicle according to the present invention;

[0035] Figure 6 This is a schematic diagram of the transfer vehicle structure of the present invention.

[0036] The following are labeled in the diagram: 1. Switch cabinet; 2. Boom; 3. Support component; 4. Open side; 5. Winch; 6. Wire rope; 7. Lifting rope; 8. Auxiliary rope; 9. First hook; 10. Second hook; 11. Transfer vehicle; 12. Hydraulic cylinder; 13. Receiving platform; 14. First trough; 15. First stop block; 16. First hydraulic cylinder; 17. Second trough; 18. Second stop block; 19. Second hydraulic cylinder; 20. Roller; 21. Lifting ring; 22. Main wire rope; 23. Window; 24. Wall. Detailed Implementation

[0037] Example 1

[0038] As shown in the figure, a switchgear hoisting mechanism is used to hoist switchgear 1 from the outside through window 23 into the interior. Since it is inconvenient to coordinate the movement of switchgear between the outside and inside of high-rise buildings, this mechanism is particularly suitable for hoisting switchgear into high-rise buildings.

[0039] The hoisting mechanism includes an adjustment component for adjusting the tilt angle of the switchgear. The adjustment component includes a support 3, a top-mounted suspension component, and a side-mounted suspension component. The support 3 is suspended from the boom 2 of the crane by a main steel wire rope 22. The top-mounted suspension component and the side-mounted suspension component are both installed on the support 3.

[0040] Please refer to Figure 2 and Figure 3 The support member 3 includes a frame in which the winch 5 is horizontally fixed; the frame has an open side 4, through which the wire rope 6 passes when the winch 5 unwinds the wire rope 6 and moves horizontally along the unwinding shaft of the winch.

[0041] Please refer to Figure 1The cabinet top lifting device includes a lifting rope 7 and an auxiliary rope 8. The upper end of the lifting rope 7 is fixed to the bottom of the frame, and the lower end is connected to the auxiliary rope 8 through a second hook 10. The left end of the auxiliary rope 8 is tied to the left side of the cabinet top, and the right end is tied to the right side wall of the switch cabinet 1. In its natural state, the auxiliary rope 8 is in a slack state. The sum of the cabinet top width and the distance from the cabinet top to the fixing point of the auxiliary rope 8 is greater than the length of the auxiliary rope 8. After the lifting rope 7 hooks the auxiliary rope 8 and lifts the switch cabinet, the auxiliary rope 8 is taut into a triangular shape.

[0042] Please refer to Figure 1 and Figure 4 The wire rope 6 of the winch 5 is hooked onto the lifting ring 21 on the right side wall of the switchgear via the first hook 9. The winch 5 has a non-working mode and a working mode. In the non-working mode, the switchgear is lifted vertically by the top lifting device, and the wire rope 6 of the winch 5 is slack, without applying tension to the switchgear. In the working mode, the winch 5 winds up the wire rope 6 and adjusts its unwinding length to cooperate with the top lifting device to change the tilt angle of the switchgear, so that the switchgear extends into the window at an angle. At this time, the boom 2 can be slightly moved towards the wall 24 to increase the length of the switchgear 1 extending into the room, which facilitates the relocation of the switchgear.

[0043] To ensure more stable hoisting of the switchgear 1, the ends of the auxiliary rope 8 and the wire rope 6 are both fixed on the same straight line on the side wall of the switchgear, and the fixing point of the auxiliary rope 8 is located above the fixing point of the wire rope 6 to prevent the switchgear 1 from tilting.

[0044] Please refer to Figure 5 and Figure 6 The hoisting mechanism also includes an indoor transfer vehicle 11. A hydraulic cylinder 12 is hinged to the body of the transfer vehicle 11. The hydraulic cylinder 12 is installed in a basically vertical direction. The top of the piston rod of the hydraulic cylinder 12 is hinged to a support platform 13. The other end of the support platform 13 is hinged to the vehicle body. The support platform 13 can rotate around the hinge point. The hydraulic cylinder 12 can lift the side of the support platform 13 near the window 23, so that the support platform 13 supports the switch cabinet 1 at an angle.

[0045] Please refer to Figure 6 The receiving platform 13 is provided with a first groove 14, and a first stop 15 is provided in the first groove 14. A first hydraulic cylinder 16 is installed in the receiving platform 13, and the first stop 15 is installed on the piston rod of the first hydraulic cylinder 16. When it is necessary to remove the first hook 9, the first stop 15 is pushed out of the first groove 14 by the first hydraulic cylinder 16 to prevent the switch cabinet 1 from sliding down.

[0046] Similarly, a second groove 17 is provided on the receiving platform 13, a second stop 18 is installed in the second groove 17, a second hydraulic cylinder 19 is installed in the receiving platform 13, and a second stop 18 is installed on the piston rod of the second hydraulic cylinder 19; when the second hook 10 needs to be removed, the second stop 18 is pushed out of the second groove 17 by the second hydraulic cylinder 19 to prevent the switch cabinet 1 from sliding down.

[0047] The receiving platform 13 is also equipped with several rollers 20 for supporting the switch cabinet. The switch cabinet 1 slides down along the rollers 20 and is then transferred to the installation point by the installer.

[0048] When the switchgear 1 is transferred to the receiving platform 13 and slides along the receiving platform 13, the crane boom 2 does not move and there is no need to adjust the height of the support 3, making operation convenient.

[0049] The switchgear 1 of this device is hoisted into the room from window 23 by the aforementioned hoisting mechanism. The structure of switchgear 1 is as follows: hoisting rings are installed on the left and right sides of the top surface of switchgear 1, and the two ends of the auxiliary rope 8 are tied to these two hoisting rings. When the auxiliary rope 8 is hoisted by the hoisting rope 7, it is triangular in shape. Hoisting ring 21 is also installed on the right side wall of switchgear 1, and the lower end of the wire rope 6 is hooked in the hoisting ring. The wire rope 6 is wound by the winch 5, thereby adjusting the tilt angle of the switchgear.

[0050] All hooks in this embodiment are self-locking safety hooks to prevent the rope from falling off the hook.

[0051] The hoisting method for switchgear includes the following steps:

[0052] Hook the hook of the hoisting rope 7 onto the auxiliary rope 8, hook the wire rope 6 onto the right side wall of the switch cabinet, and lift the switch cabinet vertically with the boom 2 until it is close to the window, and lift the switch cabinet to a position slightly above the window.

[0053] Start the winch 5, wind up the wire rope 6, and adjust the switch cabinet to an inclined position so that the lower right corner of the switch cabinet extends into the window first. The second hook 10 of the hoisting rope 7 slides along the auxiliary rope 8 to the right side of the switch cabinet. Then continue to lower the switch cabinet to the transfer angle. During this process, the boom 2 adjusts the height of the attitude adjustment component accordingly to avoid friction between the wire rope 6, the switch cabinet and the wall. Since the above process is visible from the outside, the boom can be operated smoothly.

[0054] The first hydraulic cylinder 16 and the second hydraulic cylinder 19 of the transfer vehicle 11 push out the first stop block 15 and the second stop block 18 respectively to temporarily block the switch cabinet 1; push the transfer vehicle 11 to the window 23 so that the left side of the receiving platform 13 extends into the window 23, start the hydraulic cylinder 12 to lift the receiving platform 13 until the angle of the receiving platform 13 is consistent with that of the switch cabinet 1, so that the receiving platform 13 supports the switch cabinet 1;

[0055] Remove the first hook 9 from the switch cabinet 1, release the wire rope 6, and then the first hydraulic cylinder 16 lowers to reset the first stop 15, releasing the switch cabinet.

[0056] Remove the second hook 10 from the switch cabinet 1, release the auxiliary rope 8, and then the transfer vehicle 11 transports the switch cabinet 1 to the installation point. The second hydraulic cylinder 19 lowers and resets the second stop 18, and the switch cabinet 1 is removed from the receiving platform 13.

[0057] During the release of wire rope 6 and auxiliary rope 8, the outdoor crane does not need to be operated, and the switch cabinet will not collide with the wall due to poor visibility, thus improving the safety and convenience of hoisting.

[0058] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A switchgear hoisting mechanism for hoisting a switchgear from outdoors through a window to indoors, characterized in that, The hoisting mechanism includes: An adjustment assembly for adjusting the tilt angle of a switchgear, the adjustment assembly including a support, a top-mounted suspension component, and a side-mounted suspension component; The support component is suspended from the boom of the crane by a steel wire rope; The cabinet top suspension component includes a suspension rope and an auxiliary rope. The two ends of the auxiliary rope are installed on the left and right side walls of the top surface of the switch cabinet. The suspension rope hooks onto the auxiliary rope, and the auxiliary rope is triangular when it is suspended by the suspension rope. The cabinet-side lifting component includes a winch, and the wire rope of the winch is hooked to the cabinet side wall of the switchgear by a first hook; Wherein: the top of the hoisting rope and the winch are both mounted on the support member; The winch has a non-working mode and a working mode. In the non-working mode, the switchgear is vertically lifted by the top-mounted lifting device, and the winch's wire rope does not apply tension to the switchgear. In the working mode, the winch adjusts the unwinding length of the wire rope to cooperate with the top-mounted lifting device to change the tilt angle of the switchgear, so that the switchgear extends into the window at an angle. The ends of the auxiliary rope and the steel wire rope are both fixed on the same straight line on the side wall of the switch cabinet, and the fixing point of the auxiliary rope is located above the fixing point of the steel wire rope. It also includes an indoor transfer vehicle, on which a hydraulic cylinder is hinged. The piston rod of the hydraulic cylinder is hinged to a support platform at the top, and the other end of the support platform is hinged to the vehicle body. The hydraulic cylinder is used to lift the side of the support platform near the window, so that the support platform supports the switch cabinet at an angle. The hoisting method of the switchgear hoisting mechanism includes the following steps: The hoisting rope hooks onto the auxiliary rope, the wire rope hooks onto the right side wall of the switch cabinet, and the boom vertically lifts the switch cabinet to a position near the window, and then lifts the switch cabinet to a position slightly above the window. Start the winch, wind up the wire rope, and adjust the switch cabinet to an inclined state so that the lower right corner of the switch cabinet first extends into the window. Then continue to lower the switch cabinet to the transfer angle. During this process, the boom adjusts the height of the attitude adjustment component accordingly to avoid friction between the wire rope, switch cabinet and the wall. Push the transfer vehicle to the window, start the hydraulic cylinder to lift the receiving platform until the receiving platform is at the same angle as the switch cabinet and supports the switch cabinet. Remove the steel wire rope and auxiliary rope from the switch cabinet, and the transfer vehicle will transport the switch cabinet away.

2. The switchgear hoisting mechanism according to claim 1, characterized in that, The support includes a frame in which the winch is horizontally fixed; the frame has an open side for providing space for unwinding the wire rope.

3. The switchgear hoisting mechanism according to claim 2, characterized in that, The receiving platform is provided with a first groove, and a first stop is installed in the first groove. The first stop is drivenly connected to a first hydraulic cylinder in the receiving platform. When it is necessary to remove the first hook, the first stop is pushed out of the first groove by the first hydraulic cylinder to prevent the switch cabinet from sliding down.

4. The switchgear hoisting mechanism according to claim 2, characterized in that, The lifting rope is hooked by the second hook to hold the auxiliary rope; the receiving platform is provided with a second groove, and a second stop is installed in the second groove. The second stop is driven by a second hydraulic cylinder in the receiving platform; when it is necessary to remove the second hook, the second stop is pushed out of the second groove by the second hydraulic cylinder to prevent the switch cabinet from sliding down.

5. The switchgear hoisting mechanism according to claim 2, characterized in that, The receiving platform is also equipped with rollers for supporting the switch cabinet, which slides down the receiving platform along the rollers.

6. The switchgear hoisting mechanism according to claim 2, characterized in that, When the switch cabinet is transferred to the receiving platform and slides along the receiving platform, the crane does not change the height of the support member.

7. A switch cabinet, characterized in that, The hoisting mechanism according to any one of claims 1 to 6 hoists the switch cabinet into the room from the window. The auxiliary rope is installed on the left and right side walls of the top surface of the switch cabinet. The auxiliary rope is triangular when it is hoisted by the hoisting rope. The wire rope is also installed on the right side wall of the switch cabinet. The wire rope is wound by the winch.

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