Lifting device for switch cabinet

Abstract

The utility model relates to the technical field of hoisting of switch cabinets, and discloses a hoisting device for a switch cabinet. Comprising a tightening device, a fixing block on the horizontal side of the tightening device, a steel wire rope A in the tightening device and the fixing block, a threaded shaft located in the tightening device and a rotating wheel fixedly arranged at the top of the threaded shaft. A steel wire rope A penetrates through the interiors of the four sets of fixing blocks and the interiors of the tightening devices, the two ends of the steel wire rope A are fixed to threaded shafts installed in the tightening devices, rotating wheels fixedly arranged at the tops of the threaded shafts are rotated, and according to the characteristics of the steel wire rope A, a switch cabinet needing to be lifted can be fixed through rubber pads on the inner sides of the fixing blocks; the tightening effect is achieved only by sleeving the device into the switch cabinet from the outer side and rotating the rotating wheel clockwise to enable the threaded shaft to rotate clockwise, and the device is high in applicability, can meet the lifting requirements of most switch cabinets and effectively solves the limitation of lifting conditions of different types of switch cabinets.

Description

TECHNICAL FIELD

[0001] The utility model relates to switchgear hoisting technology field, specifically be a kind of switchgear hoist device. BACKGROUND

[0002] As important equipment in power system, the installation, maintenance and handling process of switchgear, the application of hoisting device is crucial. Because the switchgear is large in size and heavy in weight, the traditional handling mode is inefficient and has safety hazards, therefore, the hoisting device which is convenient to operate and safe and reliable becomes the urgent demand in the industry.

[0003] The common switchgear hoisting device is hoisted by cooperating with the lifting ring fixed on the switchgear through the lifting hook, which can meet the hoisting requirements of most switchgears, but not all kinds of switchgears are designed with lifting rings. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model provides a switchgear hoisting device, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical scheme:

[0006] It comprises: a tension device, a fixed block on one side of the tension device, a steel wire rope A in the tension device and the fixed block, and a threaded shaft in the tension device, and a rotating wheel fixed on the top of the threaded shaft.

[0007] It is characterized in that it further comprises: the tension device is transversely provided with a slot hole allowing the steel wire rope A to pass through, and is longitudinally provided with a slot hole allowing the threaded shaft to pass through, the two slot holes are mutually penetrated, and a threaded seat with a screw hole in the inside is further fixed on the top of the tension device.

[0008] The fixed block has a channel corresponding to the transverse slot hole of the tension device, allowing the steel wire rope A to pass through, and the inner side of the channel is further provided with a slot hole, the bottom of the spring is fixed in the slot hole in the inside of the fixed block, and the top of the spring is provided with a stop block.

[0009] Further, four groups of fixed blocks are provided, and the four groups of fixed blocks are connected together with the tension device by passing through the internal channels of the fixed blocks.

[0010] Further, a thread is formed on the middle part of the threaded shaft and matches the threaded seat, the threaded shaft passes through the threaded seat and the tension device at the bottom, the middle part is screw-connected with the threaded seat, and the rotating wheel is fixed on the top.

[0011] Further, a supporting plate is arranged above the lifting hook, the supporting plate is connected and fixed with the lifting hook through a steel wire rope B, a lifting ring is fixed on the top of the supporting plate, and four reinforcing ribs are further arranged at the connecting position of the lifting ring and the supporting plate.

[0012] Further, the fixed block is provided with a protrusion with a groove matched with the hook on one side, and four groups of hooks are arranged.

[0013] Further, the rubber pad is fixed on the inner side of the fixed block, and four groups are arranged.

[0014] Further, the fixed block is provided with a protrusion with a groove matched with the hook on one side, and four groups of hooks are arranged.

[0015] Further, the bottom plate is provided with a groove allowing the baffle to move, and a screw hole matched with the positioning bolt is arranged on one side.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The steel wire rope A passes through the interiors of the four groups of fixed blocks and the interior of the tension device, is fixed at both ends of the steel wire rope A and the screw shaft installed in the interior of the tension device, the rotating wheel fixed at the top of the screw shaft is rotated, according to the characteristics of the steel wire rope A, the switch cabinet to be hoisted can be fixed by the rubber pad on the inner side of the fixed block, the device is only needed to be sleeved into the switch cabinet from the outside, the rotating wheel is rotated clockwise, the screw shaft is also rotated clockwise, the both ends of the steel wire rope A fixed on the screw shaft are rotated clockwise along the screw shaft, thereby the distance between the four groups of fixed blocks is reduced, the effect of tightening is achieved, the hook is hooked on the protrusion fixed on one side of the fixed block, the switch cabinet is hoisted by the external crane and the lifting ring, when hoisting is finished, the rotating wheel is rotated counterclockwise, the spring installed in the groove in the interior of the fixed block is used, according to the characteristics of the spring, the baffle fixed on one side of the spring is pushed outward to tighten the steel wire rope A, the steel wire rope A is automatically expanded outward, the effect of automatic homing is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of the utility model;

[0019] Figure 2 It is a sectional view of the tension device of the utility model;

[0020] Figure 3 It is a sectional view of the fixed block of the utility model;

[0021] Figure 4 It is a sectional view of the bottom plate of the utility model.

[0022] In the figure: 1, tension device; 2, fixed block; 3, steel wire rope A; 4, rotating wheel; 5, threaded shaft; 6, threaded seat; 7, spring; 8, stop block; 9, rubber pad; 10, lifting hook; 11, steel wire rope B; 12, support plate; 13, lifting ring; 14, reinforcing rib; 15, bottom plate; 16, positioning bolt; 17, baffle; 18, connecting rod. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] Please refer to Figures 1-4 , including: tension device 1, fixed block 2 of horizontal side of tension device 1, steel wire rope A 3 inside tension device 1 and threaded shaft 5 inside tension device 1, rotating wheel 4 fixed on top of threaded shaft 5; still including: the slot hole allowing steel wire rope A 3 to pass through is horizontally opened in tension device 1, the slot hole allowing threaded shaft 5 to pass through is longitudinally opened, two groups of slot holes are mutually through, rotating wheel 4 is fixed on top of threaded shaft 5 for rotating threaded shaft 5, the thread matched with threaded seat 6 is opened on middle part of threaded shaft 5, threaded shaft 5 bottom passes through threaded seat 6 first, then passes through the recess opened in tension device 1, until the thread in middle part contacts with the screw hole on threaded seat 6, then make threaded shaft 5 and threaded seat 6 connect through thread; four groups of fixed blocks 2 are arranged on both sides of tension device 1, steel wire rope A 3 passes through the passageway inside fixed block 2, connects four groups of fixed blocks 2, and the both ends of steel wire rope A 3 pass through four groups of fixed blocks 2, and are connected and fixed with the bottom of threaded shaft 5 in the slot hole opened in tension device 1. Rotating rotating wheel 4 makes steel wire rope A 3 fixed on the bottom of threaded shaft 5 rotate on threaded shaft 5, makes the distance between four groups of fixed blocks 2 reduce, thereby achieves the effect of tightening fixed switch cabinet, because threaded seat 6 with thread fixed on tension device 1 cooperates with the thread in middle part of threaded shaft 5, can play the role of fixation, makes steel wire rope A 3 always in the state of tightening.

[0025] The fixed block 2 has a passageway corresponding to the transverse opening of the tension device 1, allowing the steel wire rope A3 to pass through, and a groove is further formed on the inner side of the passageway. The bottom of the spring 7 is fixed in the groove in the interior of the fixed block 2, and the top of the spring 7 is provided with a stop block 8. After the steel wire rope A3 passes through the passageway in the interior of the fixed block 2, it is tightened by the threaded shaft 5 in the interior of the tension device 1, so that the steel wire rope A3 is tightly attached to the stop block 8 in the passageway in the interior of the fixed block 2. According to the characteristics of the spring 7, when the steel wire rope A3 is tightened, the spring 7 will be pressed down by the stop block 8, and will be kept in the position in the groove on the inner side of the passageway. After the reverse rotation of the rotating wheel 4, under normal circumstances, according to the characteristics of the steel wire rope A3, the steel wire rope A3 will be kept in the current position. At this time, the spring 7 pressed down when the steel wire rope A3 is tightened will rebound upward without pressure, so as to drive the stop block 8 to push the steel wire rope A3, so that the distance between the four fixed blocks 2 is increased, and the automatic homing is achieved, which can effectively avoid the repeated manual operation. The fixed block 2 is provided with a protrusion corresponding to the hook 10. The hook 10 and the steel wire rope B11 are provided with four groups corresponding to the fixed block 2. After the tightening of the steel wire rope A3 is completed, the hook 10 can be hung on the protrusion on one side of the fixed block 2. The hook 10 is fixed at the bottom of the steel wire rope B11. The bottom of the supporting plate 12 is connected with the top of the steel wire rope B11. The supporting plate 12 is further provided with a lifting ring 13 at the top. In order to maintain stability, the connecting part of the supporting plate 12 and the lifting ring 13 is further provided with a reinforcing rib 14. The bottom of each fixed block 2 is provided with three connecting rods 18. The bottom plate 15 is fixed at the bottom of the connecting rod 18. The interior of the bottom plate 15 is provided with a groove allowing the baffle 17 to move. The positioning bolt 16 passes through the screw hole on one side of the bottom plate 15, and is fixed with the baffle 17. When the positioning bolt 16 is screwed, the baffle 17 will move according to the screwing direction. When it is necessary to fix the bottom of the switch cabinet, the positioning bolt 16 is screwed to make the baffle 17 extend outward. When it is not necessary to use, the positioning bolt 16 can be screwed to make the baffle 17 retract.

[0026] In use, the four fixed blocks 2 connected by the steel wire rope A3 and the tension device 1 are sleeved from the top of the switch cabinet, and the distance between the four fixed blocks 2 is adjusted according to the size of the switch cabinet, so that the four fixed blocks 2 correspond to the four corners of the switch cabinet. Then the rotating wheel 4 is rotated clockwise to tighten the steel wire rope A3 and reduce the distance between the fixed blocks 2, so as to clamp the switch cabinet. The inner side of the fixed block 2 is provided with a rubber pad 9, so that the surface of the switch cabinet will not be damaged when clamped, and the over-tightening of the switch cabinet will be reduced to a certain extent. First, the external lifting machine is connected with the lifting ring 13 at the top of the supporting plate 12, and then the hook 10 is matched with the fixed block 2. The position of the device clamping can also be determined according to the height of the switch cabinet. The bottom of the switch cabinet is supported by the baffle 17 to avoid falling during lifting. The lifting device is suitable for most switch cabinets without ring design.

[0027] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lifting device for a switch cabinet, comprising: A tensioning device (1), a fixed block (2) on a horizontal side of the tensioning device (1), a steel wire rope A (3) inside the tensioning device (1) and the fixed block (2), a threaded shaft (5) located inside the tensioning device (1), and a rotating wheel (4) fixed on the top of the threaded shaft (5); The invention is characterized in that: the tensioning device (1) is provided with a slotted hole transversely for allowing the steel wire rope A (3) to pass through, and is also provided with a slotted hole longitudinally for allowing the threaded shaft (5) to pass through, the two groups of slotted holes being interconnected, and a threaded seat (6) with a screw hole inside is fixedly provided on the top of the tensioning device (1); A passage is provided inside the fixing block (2) and is corresponding to the passage of the tensioning device (1) and is transversely opened. A slot is also provided on the inner side of the passage. The bottom of the spring (7) is fixed in the slot inside the fixing block (2). A stopper (8) is installed on the top of the spring (7).

2. A lifting device for a switch cabinet according to claim 1, characterized in that: A total of four groups of fixing blocks (2) are provided, and the four groups of fixing blocks (2) are connected to the tensioning device (1) by passing a steel wire rope A (3) through the inside thereof.

3. A lifting device for a switch cabinet according to claim 1, characterized in that: The middle part of the threaded shaft (5) is provided with a thread that matches the threaded seat (6); the bottom of the threaded shaft (5) passes through the threaded seat (6) and the tensioning device (1) respectively; the middle part is threadedly connected to the threaded seat (6); and a rotating wheel (4) is fixed on the top.

4. A lifting device for a switch cabinet according to claim 1, characterized in that: A support plate (12) is provided above the hook (10), the support plate (12) and the hook (10) are connected and fixed by a steel wire rope B (11), a lifting ring (13) is fixed on the top of the support plate (12), and four groups of reinforcing ribs (14) are further provided at the connection between the lifting ring (13) and the support plate (12).

5. The lifting device for a switch cabinet according to claim 1, characterized in that: A convex block with a groove matched with the hook (10) is fixed on one side of the fixing block (2), and a total of four groups of hooks (10) are provided.

6. The lifting device for a switch cabinet according to claim 1, characterized in that: The rubber pads (9) are fixed on the inner side of the fixed block (2), and there are four groups in total.

7. The lifting device for a switch cabinet according to claim 1, characterized in that: A connecting rod (18) is fixedly provided at the bottom of the fixed block (2), and the fixed block (2) is connected to the bottom plate (15) via the connecting rod (18).

8. The lifting device for a switch cabinet according to claim 1, characterized in that: A groove for allowing the baffle (17) to move is provided inside the bottom plate (15), and a screw hole for matching with a positioning bolt (16) is provided on one side.

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