Switchgear lifting device

Abstract

The present invention provides a switch cabinet lifting device, which belongs to the technical field of switch cabinet production. It includes a horizontally arranged crossbeam, a slider arranged at both ends of the crossbeam and slidably connected, a support member suspended on each slider and rotatably connected, a steel wire rope used for one-to-one pulling of the slider to slide, and a lifting ring fixedly connected to the ends of all steel wire ropes; the support member includes a vertical suspension rod, a vertical angle plate and a horizontal support plate; the upper part of the suspension rod passes through the slider and is rotatably connected to the slider, and the lower part is fixedly connected to the upper part of the angle plate; the angle plate is composed of two metal strips fixedly connected to each other vertically; the two adjacent side edges of the support plate are respectively fixedly connected to the bottom edges of the two metal strips. The present invention can complete the preparation operation of lifting on the ground, which is more convenient; the present invention uses the support plate to lift the switch cabinet from the bottom during lifting, which can prevent the top of the switch cabinet from being deformed due to excessive force; at the same time, the angle plate can clamp the edge of the switch cabinet, which can prevent the switch cabinet from slipping and ensure safety.

Description

Technical Field

[0001] The invention belongs to the technical field of switch cabinet production, and in particular relates to a switch cabinet lifting device. Background Art

[0002] Switchgear is a device that opens, closes, controls and protects electrical equipment during the power generation, transmission, distribution and energy conversion process of the power system. The finished switchgear mainly includes circuit breakers, disconnectors, load switches, operating mechanisms, transformers, protection devices and other components.

[0003] Switch cabinets inevitably need to be hoisted during the production and assembly process. Currently, switch cabinets are mostly hoisted by hooking the pre-installed lifting rings on the top. However, on the one hand, the switch cabinets are large in size and the height is mostly above 2m, which makes it inconvenient to operate when hooking the lifting rings. On the other hand, the switch cabinets are heavy, and it is easy for the top to be deformed due to excessive force during hoisting, which is also prone to safety accidents. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a switch cabinet lifting device for lifting the switch cabinet safely and conveniently in view of the deficiencies in the prior art.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A switch cabinet lifting device, comprising a horizontally arranged crossbeam, sliders arranged at both ends of the crossbeam and slidably connected, a supporting member suspended on each of the sliders and rotatably connected, a steel wire rope for one-to-one pulling of the sliders to slide, and a lifting ring fixedly connected to the ends of all the steel wire ropes;

[0007] The supporting member comprises a vertical suspension rod, a vertical angle plate and a horizontal supporting plate; the upper part of the suspension rod passes through the slider and is rotatably connected to the slider, and the lower part is fixedly connected to the upper part of the angle plate; the angle plate is composed of two metal strips fixedly connected to each other vertically; the two adjacent side edges of the supporting plate are respectively fixedly connected to the bottom edges of the two metal strips;

[0008] The upper part of the cross beam is provided with a first long groove along the length direction for the steel wire rope to move, and the lower part is provided with a second long groove along the length direction for the suspension rod to move.

[0009] Furthermore, a circular limiting cap is provided on the top of the suspension rod;

[0010] The width of the first long groove is smaller than the diameter of the limiting cap;

[0011] The slider is a rectangular parallelepiped, and is provided with a through hole in the vertical direction, and the inner diameter of the through hole is slightly larger than the diameter of the suspension rod; a circular groove coaxial with the through hole is provided on the upper part of the slider, and the inner diameter of the circular groove is slightly larger than the diameter of the limiting cap; the circular groove is also connected to the side of the slider toward the middle of the beam through the side groove;

[0012] The end of the steel wire rope is sleeved on the suspension rod, placed in the circular groove, and passes through the side groove.

[0013] Furthermore, the depth of the circular groove is greater than the sum of the height of the limiting cap and the diameter of the wire rope; the depth of the side groove is consistent with the depth of the circular groove, and the width is greater than twice the diameter of the wire rope.

[0014] Furthermore, the top surfaces at both ends of the beam are provided with circular holes, and the inner diameter of the circular holes is larger than the diameter of the limiting cap.

[0015] Furthermore, the cross beam is in the shape of a square tube, and the cavity passing through the inside is a sliding groove for the sliding block to slide.

[0016] Furthermore, a roller is fixedly provided on the upper portion of the crossbeam, the roller is matched with the steel wire rope in a one-to-one manner, and the rollers are close to the middle portion of the crossbeam.

[0017] Furthermore, two cross beams are provided which are fixedly connected in a cross shape, and the supporting members are suspended at both ends of each cross beam by means of the slider.

[0018] Furthermore, a buffer layer is provided on the inner side of each of the metal strips.

[0019] Furthermore, the support plate is a pentagon, wherein the first and second sides, which are perpendicular to each other, are fixedly connected to the bottom sides of the two metal strips respectively, the third side is perpendicular to and adjacent to the second side, the fifth side is perpendicular to and adjacent to the first side, the fourth side is located between the third and fifth sides, and the third side and the fifth side have the same length.

[0020] Furthermore, the fourth side of the support plate has a relatively flat edge.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention comprises a horizontally arranged crossbeam, sliders arranged at both ends of the crossbeam and slidably connected, a supporting member suspended on each slider and rotatably connected, a steel wire rope for one-to-one pulling of the slider to slide, and a lifting ring fixedly connected to the ends of all the steel wire ropes, and the supporting member comprises a vertical suspension rod rotatably connected to the slider, a vertical angle plate fixedly connected to the bottom of the suspension rod, and a horizontal supporting plate fixedly connected to the bottom end of the angle plate, and the angle plate is composed of two metal strips fixedly connected to each other vertically. The crossbeam of the present invention can adopt a single-root structure, in which case two sets of supporting members are provided; it can also adopt a cross-crossed double-root structure, in which case a total of four sets of supporting members are provided.

[0023] When lifting a lighter switch cabinet, a two-group lifting member structure can be used, and two support plates can be respectively inserted under two opposite corners of the bottom of the switch cabinet; when lifting a heavier switch cabinet, a four-group lifting member structure can be used, and four support plates can be respectively inserted under two corners of the bottom of the switch cabinet. After the corner plate is buckled on the vertical edge of the switch cabinet, the switch cabinet can be lifted. The lifting ring of the present invention can be fixed to the hook of the lifting equipment, and does not need to be disassembled during the transportation of the switch cabinet. Therefore, the present invention can complete the preparation operation of lifting on the ground, and there is no need to operate the top of the switch cabinet, which is more convenient.

[0024] During lifting, the present invention utilizes a support plate to lift the switch cabinet from the bottom. At this time, the state of the switch cabinet is similar to that of being placed on the ground, which can prevent the top of the switch cabinet from being deformed due to excessive force. In addition, during lifting, the steel wire rope also pulls the slider inward, so that the two opposite corner plates are simultaneously subjected to inward pulling force, which can clamp the edges of the switch cabinet, provide shielding for the four sides of the switch cabinet, prevent the switch cabinet from slipping, and ensure safety.

[0025] The slide block of the present invention can slide along the cross beam, and the supporting member is rotatably connected to the slide block, so the present invention can be suitable for switch cabinets of different sizes and can ensure that the angle plate is buckled on the edge of the switch cabinet.

[0026] The steel wire rope of the present invention is connected to the slider by being sleeved on the suspension rod, so as to pull the slider; at the same time, the steel wire rope is pressed into the slider by the limiting cap, and the limiting cap is blocked by the top plate of the crossbeam and will not fall out, thus avoiding the steel wire rope from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0028] Figure 1 : A schematic diagram of the structure of Embodiment 1 of the present invention;

[0029] Figure 2 : A partial cross-sectional view of the end of the cross beam of Embodiment 1 of the present invention;

[0030] Figure 3: Schematic diagram of the assembly of the crossbeam, the supporting member and the slider in Embodiment 1 of the present invention;

[0031] Figure 4 : A schematic diagram of the structure of Embodiment 2 of the present invention;

[0032] Among them: 1-supporting part, 11-hanging rod, 111-limiting cap, 12-angle plate, 121-metal bar, 13-supporting plate, 2-crossbeam, 21-slide groove, 22-first long groove, 23-second long groove, 24-round hole, 25-roller, 3-slider, 31-through hole, 32-round groove, 33-side groove, 4-wire rope, 41-buckle, 5-lifting ring. DETAILED DESCRIPTION

[0033] In order to better understand the present invention, the content of the present invention is further clearly described below in conjunction with the embodiments and the accompanying drawings, but the protection content of the present invention is not limited to the following embodiments. In the following description, a large number of specific details are provided to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details.

[0034] Example 1: See Figure 1-Figure 3 The purpose of this embodiment is to provide a switch cabinet lifting device, including a horizontally arranged beam 2, sliders 3 arranged at both ends of the beam 2 and slidably connected, a supporting member 1 suspended on each slider 3 and rotatably connected, a steel wire rope 4 used for one-to-one pulling the slider 3 to slide, and a lifting ring 5 fixedly connected to the ends of all the steel wire ropes 4.

[0035] Specifically, the supporting member 1 includes a vertical suspension rod 11, a vertical angle plate 12 and a horizontal supporting plate 13. The suspension rod 11 is a round rod, a circular limiting cap 111 is coaxially arranged on the top, and the bottom is fixedly connected to the top of the angle plate 12; the angle plate 12 is composed of two metal strips 121 fixedly connected to each other vertically; the supporting plate 13 is vertically fixedly connected to the bottom end of the angle plate 12. After the two metal strips 121 of the hanging rod 11 and the angle plate 12 are fitted together, they are fastened to the two metal strips 121 by staggered bolts; the support plate 13 is located at the bottom of the support member 1, and is used to support the bottom corners of the switch cabinet; the support plate 13 is a pentagon, wherein the first side and the second side perpendicular to each other are respectively fixedly connected to the bottom sides of the two metal strips 121, the third side is perpendicular to and adjacent to the second side, the fifth side is perpendicular to and adjacent to the first side, the fourth side is located between the third side and the fifth side, and the third side and the fifth side have the same length; wherein the fourth side has a relatively flat edge, so that the support plate 13 can be conveniently inserted into the bottom of the switch cabinet. The insertion direction of the support plate 13 to the bottom of the switch cabinet is basically perpendicular to the fourth side. When there are casters at the four corners of the bottom of the switch cabinet, the support plate 13 can be conveniently inserted under the casters due to the existence of the fourth side.

[0036] The height (length) of the angle plate 12 is greater than the height of the switch cabinet to be lifted. A buffer layer is provided on the inner side of the two metal strips 121 to prevent the metal strips 121 from scratching the surface of the switch cabinet when in contact with the switch cabinet.

[0037] The crossbeam 2 is in the shape of a square tube, and the cavity that runs through the inside is a slide groove 21. Slide blocks 3 that are slidably connected to the slide groove 21 are provided at both ends of the crossbeam 2. The cross section of the slide groove 21 is rectangular, and the overall appearance of the slide block 3 is a cuboid. The size of the slide block 3 matches the size of the slide groove 21, and the slide block 3 is slidably connected to the slide groove 21 with clearance fit. The slide groove 21 is provided with a through hole 31 in the vertical direction, and the inner diameter of the through hole 31 is slightly larger than the diameter of the suspension rod 11. When the suspension rod 11 is inserted into the through hole 31, it can rotate along the axis. The upper part of the slider 3 is provided with a circular groove 32 that is coaxial with the through hole 31, and the inner diameter of the circular groove 32 is slightly larger than the diameter of the limiting cap 111; the circular groove 32 is also connected to the side of the slider 3 toward the middle of the crossbeam 2 through the side groove 33.

[0038] The diameter of the limiting cap 111 is greater than the diameter of the suspension rod 11; the depth of the circular groove 32 is greater than the sum of the height of the limiting cap 111 and the diameter of the wire rope 4; the depth of the side groove 33 is consistent with the depth of the circular groove 32, and the width is greater than twice the diameter of the wire rope 4. One end of the wire rope 4 is fixed by the buckle 41 after being wound around the suspension rod 11 for no more than one turn, so that the wire rope 4 can be limited in the circular groove 32 by the limiting cap 111, and the wire rope 4 passes through the side groove 33.

[0039] The top surface of the crossbeam 2 is provided with a first long groove 22 along the length direction, and the bottom surface is provided with a second long groove 23 along the length direction. The groove width of the first long groove 22 is larger than the diameter of the wire rope 4 and smaller than the diameter of the limit cap 111, and the groove width of the second long groove 23 is slightly larger than the diameter of the suspension rod 11. Since the wire rope 4 is wound around the suspension rod 11, the wire rope 4 can pull the slider 3 to slide in the slide groove 21, and the suspension rod 11 can move along the second long groove 23, and the wire rope 4 can move along the first long groove 22. The other end of the wire rope 4 away from the slider 3 is fixedly connected to the lifting ring 5, and the lifting ring 5 is used to connect with the hook of the lifting equipment.

[0040] The top surfaces of both ends of the cross beam 2 are also provided with circular holes 24, and the inner diameter of the circular hole 24 is larger than the diameter of the limiting cap 111. Preferably, the circular hole 24 is also connected to the first long groove 22.

[0041] In another embodiment, a roller 25 is fixedly arranged on the upper part of the cross beam 2, and the roller 25 is arranged in a one-to-one matching manner with the slider 3, and the rollers 25 are close to the middle of the cross beam 2. The steel wire ropes 4 are all passed around the lower part of the corresponding rollers 25. By setting the rollers 25, the ratio between the horizontal tension and the vertical tension on the slider 3 can be adjusted.

[0042] When assembling this embodiment, first, one end of the wire rope 4 is put on the suspension rod 11, and then the slider 3 is inserted from the end of the slide groove 21, and the circular groove 32 is aligned with the circular hole 24; then, the suspension rod 11 is inserted into the through hole 31 of the slider 3 from the circular hole 24, and the wire rope 4 is pressed into the circular groove 32 and the side groove 33 by using the limiting cap 111, and the slider 3 is slid inward to prevent the wire rope 4 from falling off; then the suspension rod 11 and the angle plate 12 are fastened with bolts; finally, the wire rope 4 is fixedly connected to the lifting ring 5.

[0043] When this embodiment is working, first adjust the two supporting parts 1, insert the two supporting plates 13 under the two opposite corners of the bottom of the switch cabinet, and buckle the angle plate 12 on the edge of the switch cabinet; then use the lifting equipment to lift the lifting ring 5, and as the wire rope 4 is tightened, the two sliders 3 move towards each other, so that the angle plate 12 clamps the two opposite edges of the switch cabinet inward, thereby clamping the switch cabinet; as the lifting equipment continues to lift, the switch cabinet will be lifted while being lifted by the supporting plates 13 and clamped by the angle plates 12. After lifting, the front, back, left and right sides of the switch cabinet are blocked by the metal bars 121, and there is no risk of falling even if it tilts due to eccentricity.

[0044] Example 2: See Figure 4 Compared with the embodiment 1, the switch cabinet lifting device provided in this embodiment mainly makes the following improvements: two cross beams 2 are provided and fixedly connected in a cross shape, and a supporting member 1 is suspended at both ends of each cross beam 2 by means of a slider 3, and four steel wire ropes 4 for pulling four sliders 3 are fixedly connected to the lifting ring 5. As in the embodiment 1, the roller 25 is an optional item.

[0045] This embodiment can use four supporting plates 13 to support the four bottom corners of the switch cabinet, and use four corner plates 12 to clamp the four edges of the switch cabinet. Therefore, the switch cabinet will be more firmly fixed during lifting, and is more suitable for lifting heavier switch cabinets with installed internal components.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in the field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A switch cabinet lifting device, characterized in that: It includes a horizontally arranged crossbeam, sliders arranged at both ends of the crossbeam and slidably connected, a supporting member suspended on each of the sliders and rotatably connected, a steel wire rope used for one-to-one pulling of the sliders to slide, and a lifting ring fixedly connected to the ends of all the steel wire ropes; The supporting member comprises a vertical suspension rod, a vertical angle plate and a horizontal supporting plate; the upper part of the suspension rod passes through the slider and is rotatably connected to the slider, and the lower part is fixedly connected to the upper part of the angle plate; the angle plate is composed of two metal strips fixedly connected to each other vertically; the two adjacent side edges of the supporting plate are respectively fixedly connected to the bottom edges of the two metal strips; The upper part of the cross beam is provided with a first long groove for the steel wire rope to move along the length direction, and the lower part is provided with a second long groove for the suspension rod to move along the length direction; A circular limiting cap is provided on the top of the suspension rod; The width of the first long groove is smaller than the diameter of the limiting cap; The slider is a rectangular parallelepiped, and is provided with a through hole in the vertical direction, and the inner diameter of the through hole is slightly larger than the diameter of the suspension rod; a circular groove coaxial with the through hole is provided on the upper part of the slider, and the inner diameter of the circular groove is slightly larger than the diameter of the limiting cap; the circular groove is also connected to the side of the slider toward the middle of the beam through the side groove; The end of the steel wire rope is sleeved on the suspension rod, placed in the circular groove, and passes through the side groove.

2. The switch cabinet lifting device according to claim 1, characterized in that: The depth of the circular groove is greater than the sum of the height of the limiting cap and the diameter of the wire rope; the depth of the side groove is consistent with the depth of the circular groove, and the width is greater than twice the diameter of the wire rope.

3. The switch cabinet lifting device according to claim 1, characterized in that: The top surfaces at both ends of the crossbeam are also provided with circular holes, and the inner diameter of the circular holes is larger than the diameter of the limiting cap.

4. The switch cabinet lifting device according to claim 1, characterized in that: The cross beam is in the shape of a square tube, and the cavity penetrating therein is a sliding groove for the sliding block to slide.

5. The switch cabinet lifting device according to claim 1, characterized in that: A roller is fixedly arranged on the upper part of the cross beam, the roller is matched with the steel wire rope in a one-to-one arrangement, and the rollers are close to the middle part of the cross beam.

6. The switch cabinet lifting device according to claim 1, characterized in that: Two cross beams are provided which are fixedly connected in a cross shape, and the supporting parts are hung on both ends of each cross beam by means of the slider.

7. The switch cabinet lifting device according to claim 1, characterized in that: A buffer layer is arranged on the inner side of each of the metal strips.

8. The switch cabinet lifting device according to claim 1, characterized in that: The support plate is a pentagon, wherein the first side and the second side which are perpendicular to each other are fixedly connected to the bottom sides of the two metal strips respectively, the third side is perpendicular to and adjacent to the second side, the fifth side is perpendicular to and adjacent to the first side, the fourth side is located between the third side and the fifth side, and the third side and the fifth side have the same length.

9. The switch cabinet lifting device according to claim 8, characterized in that: The fourth side of the support plate has a relatively flat edge.

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