Lifting and transferring device for fan assembly

Abstract

The utility model relates to the technical field of fan transfer, in particular to a fan assembly lifting transfer device which comprises a cross beam, a sliding assembly and supporting legs, the length of the supporting legs is adjustable, the sliding assembly used for hanging a fan assembly can slide on the cross beam, the two ends of the cross beam are fixedly connected with installation parts, and the installation parts are fixedly connected with the cross beam. The bottom of each installation part is rotationally connected with the two supporting legs, the two supporting legs are located on the two sides of the cross beam on the installation parts respectively, an angle adjusting mechanism is installed between the two supporting legs located on the same installation part, and the angle adjusting mechanisms are connected with the two supporting legs. According to the lifting and transferring device for the fan assembly, when the fan assembly is lifted and transferred under the working condition that the ground such as a ridge is uneven, the included angle between the two supporting legs on the same side of the cross beam can be adjusted through the angle adjusting mechanism, so that the supporting legs can be rotatably supported on the ground where stress is convenient, and the device is more stable; and rollover, caused by uneven stress, of the device when the fan assembly is transferred is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of fan transportation, and more specifically, to a lifting and transporting device for a fan assembly. Background Technique

[0002] Wind power generation is a clean energy technology. Its principle is to use wind power to drive the rotation of the fan blades, then increase the rotation speed through a speed increasing device, drive the generator to generate electricity, convert wind energy into mechanical energy, and then convert it into electrical energy. In order to enable the fan to generate electricity stably, the fan is generally built in areas with high openness and stable wind speeds, such as mountain ridges, plains, and coastlines.

[0003] Due to the large volume of the fan, especially the fan blades and the tower, which are dozens of meters or even hundreds of meters long and weigh several tons, large transportation equipment such as forklifts, truck-mounted cranes, and cranes are required for transportation and installation during the transportation of the fan. However, due to the high requirements of large transportation equipment for the flatness of the environment and the construction space, it is difficult for large equipment to enter areas with uneven ground such as mountain ridges and small construction spaces. In this kind of working condition, a combination of a mechanical forklift and a hanging bracket is generally selected to lift, transport, and install the fan. However, after the hanging bracket is erected, due to the uneven ground of the mountain, the ground cannot provide stable support for the base of the hanging bracket, and the supporting force received by the base of the hanging bracket is not uniform. When the hanging bracket is used to lift and transport a fan assembly with a large mass and volume such as a fan blade, the hanging bracket is prone to tipping over due to unstable center of gravity. After the hanging bracket tips over, it is easy to cause damage to the fan, resulting in additional property losses and threatening the personal safety of the transportation personnel. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiency that when using a hanging bracket to lift, transport, and install a fan assembly under the working condition of uneven ground, the base of the hanging bracket cannot receive uniform supporting force, resulting in the hanging bracket being prone to tipping over due to unstable center of gravity, and to provide a lifting and transporting device for a fan assembly. The lifting and transporting device in this solution has more stable base support when lifting and transporting the fan assembly, and can avoid the problem of tipping over.

[0005] To solve the above technical problems, the technical solution adopted by the utility model is:

[0006] Provided is a lifting and transporting device for a fan assembly, including a cross beam, a sliding assembly and legs. The length of the legs is adjustable. The sliding assembly for hanging the fan assembly can slide on the cross beam. Both ends of the cross beam are fixedly connected with mounting parts. The bottom of the mounting parts is rotatably connected with the two legs. The two legs are respectively located on both sides of the cross beam on the mounting parts. An angle adjusting mechanism is installed between the two legs on the same mounting part. The angle adjusting mechanism is connected with the two legs.

[0007] When the lifting and transporting device for a fan assembly of the present utility model is working, first, select a position in the working area that can provide stable support for the legs, and then rotate the legs on the mounting parts through the angle adjusting mechanism to adjust the included angle between the two legs, so that the two legs on the same mounting part are both located at positions on the ground that can provide stable support for the legs. After the four legs in the device are all located at positions on the ground that can provide stable support for the legs, adjust the length of the legs so that the fan assembly will not collide with obstacles such as trees on the ground during movement and keep the cross beam horizontal. After the length adjustment of the legs is completed, hang the fan assembly on the sliding assembly, and then drive the sliding assembly to slide on the cross beam to transport the fan assembly from one end of the cross beam to the other end. For the lifting and transporting device for a fan assembly of the present utility model, when lifting and transporting the fan assembly under working conditions with uneven ground such as mountain ridges, the included angle between the two legs on the same side of the cross beam can be adjusted through the angle adjusting mechanism, so that the legs can be rotatably supported on the ground where it is convenient to bear force, the device is more stable, and the device is prevented from tipping over during the transportation of the fan assembly due to uneven force.

[0008] Further, the angle adjusting mechanism includes a connecting rod, a connecting seat, an adjusting seat, a lead screw and an adjusting rod. The adjusting rod is rotatably connected to the connecting rod. There are two connecting rods. The two connecting rods are respectively located on both sides of the connecting seat and are both rotatably connected to the connecting seat. The ends of the two connecting rods far from the connecting seat are respectively rotatably connected to the two legs. The two adjusting rods are both rotatably connected to the adjusting seat. The lead screw passes through the connecting seat and is rotatably connected to the connecting seat. The lead screw is also threadedly connected to the adjusting seat.

[0009] Two connecting rods and two adjusting rods form a parallelogram through a connecting seat and an adjusting seat. When it is necessary to adjust the angle between the two legs, rotate the lead screw. The rotation of the lead screw will drive the position of the adjusting seat on the lead screw to change, causing the adjusting seat to move towards or away from the connecting seat. When the adjusting seat moves towards the connecting seat, the angle between the connecting rod and the adjusting rod becomes smaller, the angle between the two connecting rods becomes larger, and the angle between the two legs becomes larger; when the adjusting seat moves away from the connecting seat, the angle between the connecting rod and the adjusting rod becomes larger, the angle between the two connecting rods becomes smaller, and the angle between the two legs becomes smaller.

[0010] Further, one end of the lead screw away from the adjusting seat is fixedly connected with a first handle. In the vertical direction, the first handle is located at the bottom of the connecting seat, and the adjusting seat is located at the top of the connecting seat. By setting the first handle on the lead screw, it is easier to adjust the angle between the two legs by rotating the lead screw through the first handle. Since the height of the legs is relatively high, it is more convenient for the operator to rotate the first handle located below the adjusting seat.

[0011] Further, the leg includes an upper leg and a lower leg. The upper leg is located inside the lower leg and is slidably connected to the lower leg. The lower leg is rotatably connected to the connecting rod, the upper leg is rotatably connected to the mounting portion, and a height adjusting mechanism for adjusting the extending length of the upper leg is installed on the lower leg. The length of the leg is adjusted by changing the extending length of the upper leg on the lower leg through the height adjusting mechanism. The upper leg and the mounting portion are rotatably connected by bolts. The upper leg rotates on the mounting portion with the bolts as the rotation axis, and nuts are provided on the bolts to lock the upper leg and the mounting portion.

[0012] Further, the height adjusting mechanism includes a bearing seat, a rope winding disc, a rotating shaft, and a traction rope. The bearing seat is installed at one end near the top on the side of the lower leg. The rotating shaft passes through the rope winding disc and is fixedly connected to the rope winding disc. The rotating shaft and the rope winding disc are located on the bearing seat and the rotating shaft is rotatably connected to the bearing seat. One end of the rotating shaft extends outside the bearing seat and is provided with a second handle for driving the rotation of the rotating shaft. The second handle is slidably connected to the rotating shaft. A card slot is provided on the bearing seat, and the second handle can slide into the inner cavity of the card slot and engage with the card slot. One end of the traction rope is wound around the rope winding disc, and the other end is connected to the bottom of the upper leg.

[0013] In the initial state, the second handle is engaged in the card slot on the bearing seat. When the length of the outrigger needs to be adjusted, the second handle is toggled so that the second handle slides on the rotating shaft until it slides out of the card slot, and then the second handle is rotated. The rotation of the second handle drives the rotating shaft to rotate, and the rotation of the rotating shaft drives the rope winding disc to rotate on the bearing seat. The rotation of the rope winding disc can adjust the released length of the towing rope. When the rope winding disc rotates to increase the released length of the towing rope, the length of the upper outrigger extending into the inner cavity of the lower outrigger increases, and the overall length of the outrigger decreases; when the rope winding disc rotates to decrease the released length of the towing rope, the length of the upper outrigger extending into the inner cavity of the lower outrigger decreases, and the overall length of the outrigger increases. After completing the adjustment of the outrigger length, the second handle is re-engaged into the card slot.

[0014] Further, there are several card slots, and several card slots are arranged on the bearing seat at equal circumferential intervals with the axis of the rotating shaft as the center. There are several card slots, so that the second handle can be engaged into the card slot at multiple positions during one rotation. When the adjustment of the outrigger length is completed, it is more convenient to engage the second handle into the card slot closest to its position to complete the fixation of the second handle. Furthermore, after the adjustment of the outrigger length is completed, the length of the outrigger is fixed.

[0015] Further, a sliding groove is provided on the lower outrigger, the axis of the sliding groove is parallel to the axis of the lower outrigger, a connecting member is provided at the bottom of the side surface of the upper outrigger, the connecting member is located in the sliding groove, the towing rope is connected to the connecting member, and the towing rope is connected to the bottom of the lower outrigger through the connecting member. A sliding groove is provided on the lower outrigger, and the connecting member on the upper outrigger is located inside the sliding groove. The towing rope is connected to the upper outrigger through the connecting member. The connecting member is located in the sliding groove, so that the connection between the towing rope and the upper outrigger is located outside the inner cavity of the lower outrigger, which is more convenient for connecting the towing rope to the upper outrigger. At the same time, the connection state between the towing rope and the upper outrigger can be directly observed.

[0016] Further, it further includes feet. A connecting portion is provided at the bottom of the lower leg. The feet are rotatably connected to the connecting portion through locking bolts, and a locking nut capable of locking the feet and the connecting portion is provided on the locking bolts. Specifically, a first through hole is provided on the connecting portion. The feet include a base and two limiting pieces. Second through holes are provided on the limiting pieces, and a clamping groove is formed between the two limiting pieces. The connecting portion extends into the inner cavity of the clamping groove. The locking bolt passes through the first through hole and the second through hole, and a locking nut capable of locking the limiting pieces and the mounting portion is provided on the bolt. When an angle appears between the lower leg and the ground, resulting in insufficient contact area, the locking nut is loosened, so that the feet can rotate on the lower leg with the bolt as the rotation axis until the feet rotate to an angle where they can be in close contact with the ground. Then the locking nut is tightened, so that the clamping groove formed by the two limiting pieces clamps the connecting portion, completing the fixation between the lower leg and the feet, and keeping the lower leg and the feet relatively stationary. At this time, the feet are in close contact with the ground, and the ground can provide stable support for the lower leg through the feet. The lower leg is provided with feet, and the lower leg contacts the ground through the feet. The feet can rotate on the lower leg, so that the base of the feet can always be in close contact with the ground, further increasing the contact area between the lower leg and the ground, enabling the ground to provide more stable support for the lower leg, and further reducing the probability of the device tipping over during operation.

[0017] Further, the cross-section of the cross beam is "H" shaped, the sliding assembly is annular, the cross beam passes through the inner cavity of the sliding assembly, a pulley is provided at the top of the sliding assembly, the pulley abuts against the top of the cross beam, and a hanging ring for hanging the fan assembly is provided at the bottom of the sliding assembly. The cross-section of the cross beam is "H" shaped, which has higher stability and strength, and the self-weight of the structure is light, facilitating installation and handling. The pulley on the sliding assembly is located on the top surface of the cross beam, so that the pressure of the pulley on the cross beam can be transmitted to other positions of the cross beam through the top surface of the cross beam, avoiding the cross beam from bending due to too concentrated force during the process of transporting the fan assembly by the sliding assembly.

[0018] Further, it further includes installation bolts. The mounting portion includes two clamping pieces. First mounting holes are provided on the clamping pieces. Second mounting holes are provided on the web of the "H" shaped cross beam. A clamping groove is formed between the two clamping pieces. The web is located in the clamping groove and the bottom of the clamping groove abuts against the end face of the cross beam. The installation bolts pass through the first mounting holes and the second mounting holes, and installation nuts capable of locking the clamping pieces and the web are provided on the installation bolts. The mounting portion clamps the web of the cross beam through the clamping pieces. The two clamping pieces can share the pressure from the cross beam. At the same time, there are also installation bolts to lock and fix between the clamping pieces and the cross beam, which can further increase the connection strength between the mounting portion and the cross beam.

[0019] Compared with the prior art, the beneficial effects of the present utility model are:

[0020] A lifting and transporting device for a fan assembly of the present utility model can adjust the included angle between two legs on the same side of the crossbeam through an angle adjustment mechanism when lifting and transporting the fan assembly under working conditions with uneven ground such as mountain ridges, so that the legs can be rotatably supported on the ground where it is convenient to bear force, making the device more stable and avoiding the device from tipping over during the transportation of the fan assembly due to uneven force.

[0021] The angle adjustment mechanism in a lifting and transporting device for a fan assembly of the present utility model can adjust the angle between two connecting rods by rotating a lead screw, and then complete the adjustment of the angle between the two legs. The adjustment method is simple and convenient.

[0022] The height adjustment mechanism in a lifting and transporting device for a fan assembly of the present utility model rotates a rope winding disc through a second handle to adjust the released length of a traction rope, and then adjusts the extending length of the upper leg inside the inner cavity of the lower leg to complete the adjustment of the overall length of the leg. Then, the second handle is clamped into a card slot to fix the rope winding disc, and further fix the extending length of the upper leg on the lower leg. The adjustment method is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of a lifting and transporting device for a fan assembly;

[0024] Figure 2 is a schematic structural diagram of an angle adjustment mechanism in a lifting and transporting device for a fan assembly;

[0025] Figure 3 is a schematic structural diagram of a length adjustment mechanism in a lifting and transporting device for a fan assembly;

[0026] Figure 4 is a part of a lifting and transporting device for a fan assembly Figure 1 Enlarged view of part A;

[0027] Figure 5 is a part of a lifting and transporting device for a fan assembly Figure 1 Enlarged view of part B.

[0028] In the attached drawings: 1. Cross beam; 101. Web; 2. Sliding assembly; 201. Pulley; 3. Leg; 301. Upper leg; 302. Lower leg; 311. Connector; 321. Chute; 322. Connection part; 4. Installation part; 401. Clamping piece; 5. Connecting rod; 6. Connection seat; 7. Adjusting seat; 8. Lead screw; 9. Adjusting rod; 10. First handle; 11. Bearing seat; 111. Card slot; 12. Rope winding disc; 13. Rotating shaft; 14. Traction rope; 15. Second handle; 16. Foot; 161. Base; 162. Limiting piece; 17. Locking bolt; 171. Locking nut; 18. Installation bolt; 181. Installation nut. Detailed implementation manners

[0029] The present utility model will be further described below in conjunction with the detailed implementation manners. Among them, the attached drawings are only for illustrative purposes, showing only schematic diagrams rather than actual drawings, and should not be construed as a limitation to this patent; in order to better illustrate the embodiments of the present utility model, some components in the attached drawings will be omitted, enlarged or reduced, which do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the attached drawings may be omitted.

[0030] In the attached drawings of the embodiments of the present utility model, the same or similar reference numerals correspond to the same or similar components; in the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or position relationship, it is based on the orientation or position relationship shown in the attached drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the attached drawings are only for illustrative purposes and should not be construed as a limitation to this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0031] Embodiment 1

[0032] This embodiment is the first embodiment of a lifting and transporting device for a fan assembly. As Figure 1 shown, it includes a cross beam 1, a sliding assembly 2 and legs 3. The length of the legs 3 is adjustable. The sliding assembly 2 for hanging the fan assembly can slide on the cross beam 1. Both ends of the cross beam 1 are fixedly connected with installation parts 4. The bottom of the installation part 4 is rotatably connected with the two legs 3. The two legs 3 are respectively located on both sides of the cross beam 1 on the installation part 4. An angle adjusting mechanism is installed between the two legs 3 on the same installation part 4, and the angle adjusting mechanism is connected with the two legs 3.

[0033] The working principle or process of this embodiment is as follows:

[0034] When the device is working, first select a position in the working area that can provide stable support for the outrigger 3, and then rotate the outrigger 3 on the mounting part 4 through the angle adjustment mechanism to adjust the included angle between the two outriggers 3, so that the two outriggers 3 on the same mounting part 4 are both located at positions on the ground that can provide stable support for the outrigger 3. After the four outriggers 3 in the device are all located at positions on the ground that can provide stable support for the outrigger 3, adjust the length of the outrigger 3 so that the fan assembly will not collide with obstacles such as trees on the ground during movement, and keep the cross beam 1 horizontal. After the length adjustment of the outrigger 3 is completed, hang the fan assembly on the sliding assembly 2, and then drive the sliding assembly 2 to slide on the cross beam 1 to transfer the fan assembly from one end of the cross beam 1 to the other end.

[0035] The beneficial effects of this embodiment are as follows:

[0036] For a lifting and transporting device of a fan assembly of the present utility model, when lifting and transporting the fan assembly under working conditions with uneven ground such as mountain ridges, the included angle between the two outriggers 3 on the same side of the cross beam 1 can be adjusted through the angle adjustment mechanism, so that the outriggers 3 can be rotatably supported on the ground where it is convenient to bear force, and the device is more stable, avoiding the device from tipping over during the transportation of the fan assembly due to uneven force.

[0037] Embodiment Two

[0038] This embodiment is the second embodiment of a lifting and transporting device of a fan assembly. On the basis of Embodiment One, as Figure 2 shown, the structure of the angle adjustment mechanism is further defined.

[0039] Specifically, the angle adjustment mechanism includes a connecting rod 5, a connecting seat 6, an adjusting seat 7, a lead screw 8 and an adjusting rod 9. The adjusting rod 9 is rotatably connected to the connecting rod 5. There are two connecting rods 5, and the two connecting rods 5 are respectively located on both sides of the connecting seat 6 and are both rotatably connected to the connecting seat 6. The ends of the two connecting rods 5 far from the connecting seat 6 are respectively rotatably connected to the two outriggers 3. The two adjusting rods 9 are both rotatably connected to the adjusting seat 7, so that the two connecting rods 5 and the two adjusting rods 9 form a parallelogram through the connecting seat 6 and the adjusting seat 7. The lead screw 8 passes through the connecting seat 6 and is rotatably connected to the connecting seat 6. The lead screw 8 is also threadedly connected to the adjusting seat 7. One end of the lead screw 8 far from the adjusting seat 7 is fixedly connected with a first handle 10. In the vertical direction, the first handle 10 is located at the bottom of the connecting seat 6, and the adjusting seat 7 is located at the top of the connecting seat 6.

[0040] The working principle or process of this embodiment is as follows:

[0041] When adjusting the angle between the two outriggers 3, the lead screw 8 is rotated by turning the first handle 10. The rotation of the lead screw 8 drives the position of the adjusting seat 7 on the lead screw 8 to change, causing the adjusting seat 7 to move towards or away from the connecting seat 6. When the adjusting seat 7 moves towards the connecting seat 6, the angle between the connecting rod 5 and the adjusting rod 9 becomes smaller, the angle between the two connecting rods 5 becomes larger, and the angle between the two outriggers 3 becomes larger; when the adjusting seat 7 moves away from the connecting seat 6, the angle between the connecting rod 5 and the adjusting rod 9 becomes larger, the angle between the two connecting rods 5 becomes smaller, and the angle between the two outriggers 3 becomes smaller.

[0042] The beneficial effects of this embodiment are as follows:

[0043] The angle adjustment mechanism in this embodiment can adjust the angle between the two connecting rods 5 by rotating the lead screw 8, and then complete the adjustment of the angle between the two outriggers 3. The adjustment method is simple and convenient. A first handle 10 is provided on the lead screw 8. By turning the lead screw 8 through the first handle 10, it is easier to adjust the angle between the two outriggers 3. Since the height of the outrigger 3 is relatively high, the first handle 10 is located below the adjusting seat 7, which is more convenient for the operator to turn.

[0044] Embodiment Three

[0045] This embodiment is the third embodiment of a lifting and transporting device for a fan assembly. Based on Embodiment One or Embodiment Two, the structure of the outrigger 3 is further defined.

[0046] Specifically, as Figure 1 shown, the outrigger 3 includes an upper outrigger 301 and a lower outrigger 302. The upper outrigger 301 is located in the inner cavity of the lower outrigger 302 and is slidably connected to the lower outrigger 302. The lower outrigger 302 is rotatably connected to the connecting rod 5, the upper outrigger 301 is rotatably connected to the mounting portion 4, and a height adjustment mechanism for adjusting the extending length of the upper outrigger 301 is installed on the lower outrigger 302.

[0047] Specifically, as Figure 3As shown in the figure, the height adjustment mechanism includes a bearing seat 11, a rope winding disc 12, a rotating shaft 13 and a traction rope 14. The bearing seat 11 is installed at one end near the top on the side of the lower leg 302. The rotating shaft 13 passes through the rope winding disc 12 and is fixedly connected to the rope winding disc 12. The rotating shaft 13 and the rope winding disc 12 are located on the bearing seat 11 and the rotating shaft 13 is rotatably connected to the bearing seat 11. One end of the rotating shaft 13 extends outside the bearing seat 11 and is provided with a second handle 15 that can drive the rotating shaft 13 to rotate. The second handle 15 is slidably connected to the rotating shaft 13. The bearing seat 11 is provided with a card slot 111. The second handle 15 can slide into the inner cavity of the card slot 111 and engage with the card slot 111. One end of the traction rope 14 is wound around the rope winding disc 12, and the other end is connected to the bottom of the upper leg 301. There are several card slots 111, and several card slots 111 are arranged at equal circumferential distances around the axis of the rotating shaft 13 on the bearing seat 11.

[0048] Specifically, the lower leg 302 is provided with a sliding groove 321, the axis of the sliding groove 321 is parallel to the axis of the lower leg 302. The bottom of the side of the upper leg 301 is provided with a connecting member 311. The connecting member 311 is located in the sliding groove 321. The traction rope 14 is connected to the connecting member 311, and the traction rope 14 is connected to the bottom of the lower leg 302 through the connecting member 311.

[0049] Specifically, as Figure 4 shown in the figure, it further includes a foot 16. The bottom of the lower leg 302 is provided with a connecting portion 322. The foot 16 is rotatably connected to the connecting portion 322 through a locking bolt 17. The locking bolt 17 is provided with a locking nut that can lock the foot 16 and the connecting portion 322. Among them, the connecting portion 322 is provided with a first through hole. The foot 16 includes a base 161 and two limiting pieces 162. The limiting pieces 162 are provided with second through holes. A card slot is formed between the two limiting pieces 162. The connecting portion 322 extends into the inner cavity of the card slot. The locking bolt 17 passes through the first through hole and the second through hole, and the bolt is provided with a locking nut 171 that can lock the limiting piece 162 and the mounting portion 4.

[0050] The working principle or working process of this embodiment is as follows:

[0051] In the initial state, the second handle 15 is engaged in the card slot 111 on the bearing block 11. When it is necessary to adjust the length of the outrigger 3, the second handle 15 is toggled so that the second handle 15 slides on the rotating shaft 13 until it slides out of the card slot 111, and then the second handle 15 is rotated. The rotation of the second handle 15 drives the rotating shaft 13 to rotate, and the rotation of the rotating shaft 13 drives the rope winding disc 12 to rotate on the bearing block 11. The rotation of the rope winding disc 12 can adjust the released length of the towing rope 14. When the rope winding disc 12 rotates to increase the released length of the towing rope 14, the length of the upper outrigger 301 extending into the inner cavity of the lower outrigger 302 increases, and the overall length of the outrigger 3 decreases; when the rope winding disc 12 rotates to decrease the released length of the towing rope 14, the length of the upper outrigger 301 extending into the inner cavity of the lower outrigger 302 decreases, and the overall length of the outrigger 3 increases. After completing the length adjustment of the outrigger 3, the second handle 15 is re-engaged into the card slot 111 closest to its position.

[0052] After completing the length adjustment of the outrigger 3, when it is found that there is an angle between the lower outrigger 302 and the ground, resulting in insufficient contact area, the locking nut 171 is loosened so that the foot 16 can rotate on the lower outrigger 302 with the locking bolt 17 as the rotation axis until the foot 16 rotates to an angle that can closely fit the ground, and then the locking nut 171 is tightened so that the card slot formed by the two limiting pieces 162 clamps the connecting part 322, completing the fixation between the lower outrigger 302 and the foot 16, so that the lower outrigger 302 and the foot 16 remain relatively stationary. At this time, the foot 16 is closely attached to the ground, and the ground can provide stable support for the lower outrigger 302 through the foot 16.

[0053] The beneficial effects of this embodiment are as follows:

[0054] The length of the outrigger 3 is adjusted by changing the extended length of the upper outrigger 301 on the lower outrigger 302 through the height adjustment mechanism. The second handle 15 rotates the rope winding disc 12 to adjust the released length of the towing rope 14, and then adjusts the extended length of the upper outrigger 301 in the inner cavity of the lower outrigger 302 to complete the adjustment of the overall length of the outrigger 3. Then, the second handle 15 is snapped into the card slot 111 to fix the rope winding disc 12, and further fix the extended length of the upper outrigger 301 on the lower outrigger 302. The adjustment method is simple and convenient. There are several card slots 111, so that the second handle 15 can be snapped into the card slot 111 at multiple positions during one revolution. When the length adjustment of the outrigger 3 is completed, it is more convenient to snap the second handle 15 into the card slot 111 closest to its position to complete the fixation of the second handle 15, and then fix the length of the outrigger 3 after the length adjustment of the outrigger 3 is completed. The connecting piece 311 is located in the sliding groove 321, so that the connection between the towing rope 14 and the upper outrigger 301 is located outside the inner cavity of the lower outrigger 302, which is more convenient to connect the towing rope 14 with the upper outrigger 301, and at the same time, the connection state between the towing rope 14 and the upper outrigger 301 can be directly observed. The setting of the outrigger foot 16 enables the lower outrigger 302 to contact the ground through the outrigger foot 16. The outrigger foot 16 can rotate on the lower outrigger 302, so that the base 161 of the outrigger foot 16 can always be in close contact with the ground, further increasing the contact area between the lower outrigger 302 and the ground. The ground provides more stable support for the lower outrigger 302, and further reduces the probability of the device tipping over during operation.

[0055] Embodiment 4

[0056] This embodiment is the fourth embodiment of a lifting and transporting device for a fan assembly. On the basis of Embodiments 1 to 3, the cross beam 1 and the mounting part 4 of the device are further defined.

[0057] Specifically, the cross section of the cross beam 1 is "H" shaped, the sliding assembly 2 is annular, the cross beam 1 passes through the inner cavity of the sliding assembly 2, a pulley 201 is provided at the top of the sliding assembly 2, the pulley 201 abuts against the top of the cross beam 1, and a lifting ring for hanging the fan assembly is provided at the bottom of the sliding assembly 2.

[0058] Specifically, it further includes mounting bolts 18. The mounting part 4 includes two clamping pieces 401. First mounting holes are provided on the clamping pieces 401, and second mounting holes are provided on the web 101 of the "H" shaped cross beam 1. A clamping groove is formed between the two clamping pieces 401. The web 101 of the "H" shaped cross beam 1 is located in the clamping groove and the bottom of the clamping groove abuts against the end face of the cross beam 1. The mounting bolts 18 pass through the first mounting holes and the second mounting holes, and mounting nuts 181 for locking the clamping pieces 401 and the web 101 are provided on the mounting bolts 18.

[0059] The beneficial effects of this embodiment are as follows:

[0060] The cross-section of the crossbeam 1 is in the shape of "H", which has higher stability and strength, and its self-weight is light, making it convenient for installation and handling. The pulley 201 on the sliding assembly 2 is located on the top surface of the crossbeam 1, so that the pressure of the pulley 201 on the crossbeam 1 can be transmitted to other positions of the crossbeam 1 through the top surface of the crossbeam 1, avoiding bending of the crossbeam 1 due to overly concentrated stress during the process of transporting the fan assembly by the sliding assembly 2.

[0061] The installation part 4 clamps the web 101 of the crossbeam 1 through the clamping pieces 401. The two clamping pieces 401 can share the pressure from the crossbeam 1. At the same time, there are also installation bolts 18 to lock and fix between the clamping pieces 401 and the crossbeam 1, which can further increase the connection strength between the installation part 4 and the crossbeam 1.

[0062] In the specific content of the above specific implementation manner, each technical feature can be combined arbitrarily without contradiction. For the sake of concise description, not all possible combinations of the above technical features are described. However, as long as the combinations of these technical features do not conflict, they should all be considered as the scope described in this specification.

[0063] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A lifting and transporting device for a fan assembly, characterized in that: The invention comprises a crossbeam (1), a sliding assembly (2) and legs (3); the length of the legs (3) is adjustable; the sliding assembly (2) for hanging a fan assembly can slide on the crossbeam (1); both ends of the crossbeam (1) are fixedly connected with a mounting portion (4); the bottom of the mounting portion (4) is rotatably connected to the two legs (3); the two legs (3) are respectively located on both sides of the crossbeam (1) on the mounting portion (4); an angle adjustment mechanism is installed between the two legs (3) located on the same mounting portion (4); the angle adjustment mechanism is connected to the two legs (3).

2. The lifting and transporting device for a fan assembly according to claim 1, characterized in that: The angle adjustment mechanism comprises a connecting rod (5), a connecting seat (6), an adjustment seat (7), a lead screw (8) and an adjustment rod (9); the adjustment rod (9) is rotatably connected to the connecting rod (5); there are two connecting rods (5); the two connecting rods (5) are respectively located on both sides of the connecting seat (6) and are both rotatably connected to the connecting seat (6); one end of the two connecting rods (5) away from the connecting seat (6) is respectively rotatably connected to the two legs (3); the two adjustment rods (9) are both rotatably connected to the adjustment seat (7); the lead screw (8) passes through the connecting seat (6) and is rotatably connected to the connecting seat (6); the lead screw (8) is also threadedly connected to the adjustment seat (7).

3. The lifting and transporting device for a fan assembly according to claim 2, characterized in that: A first handle (10) is fixedly connected to one end of the lead screw (8) away from the adjustment seat (7); in the vertical direction, the first handle (10) is located at the bottom of the connection seat (6), and the adjustment seat (7) is located at the top of the connection seat (6).

4. The lifting and transporting device for a fan assembly according to claim 2, characterized in that: The supporting leg (3) comprises an upper supporting leg (301) and a lower supporting leg (302); the upper supporting leg (301) is located in the inner cavity of the lower supporting leg (302) and is slidably connected to the lower supporting leg (302); the lower supporting leg (302) is rotatably connected to the connecting rod (5); the upper supporting leg (301) is rotatably connected to the mounting portion (4); and a height adjustment mechanism for adjusting the extension length of the upper supporting leg (301) is installed on the lower supporting leg (302).

5. The lifting and transporting device for a fan assembly according to claim 4, characterized in that: The height adjustment mechanism comprises a bearing seat (11), a rope collecting disc (12), a rotating shaft (13) and a traction rope (14); the bearing seat (11) is installed on the side of the lower leg (302) at one end close to the top thereof; the rotating shaft (13) passes through the rope collecting disc (12) and is fixedly connected to the rope collecting disc (12); the rotating shaft (13) and the rope collecting disc (12) are located on the bearing seat (11) and the rotating shaft (13) is rotatably connected to the bearing seat (11); the rotating shaft (13) ) extends out of the bearing seat (11) and is provided with a second handle (15) capable of driving the rotating shaft (13) to rotate, the second handle (15) being slidably connected to the rotating shaft (13), a slot (111) being provided on the bearing seat (11), the second handle (15) being capable of sliding into the inner cavity of the slot (111) and engaging with the slot (111), one end of the traction rope (14) being wound around the rope collecting drum (12), and the other end being connected to the bottom of the upper leg (301).

6. The lifting and transporting device for a fan assembly according to claim 5, characterized in that: There are a plurality of the clamping grooves (111), and the plurality of the clamping grooves (111) are arranged on the bearing seat (11) at equal intervals in a circle with the axis of the rotating shaft (13) as the center.

7. The lifting and transporting device for a fan assembly according to claim 5, characterized in that: The lower leg (302) is provided with a slide groove (321), the axis of the slide groove (321) is parallel to the axis of the lower leg (302), the bottom of the side of the upper leg (301) is provided with a connecting piece (311), the connecting piece (311) is located in the slide groove (321), the traction rope (14) is connected to the connecting piece (311), and the traction rope (14) is connected to the bottom of the lower leg (302) through the connecting piece (311).

8. The lifting and transporting device for a fan assembly according to claim 4, characterized in that: It also includes a support leg (16), a connecting portion (322) being provided at the bottom of the lower support leg, the support leg (16) being rotatably connected to the connecting portion (322) via a locking bolt (17), and a locking nut (171) being provided on the locking bolt (17) for locking the support leg (16) and the connecting portion (322).

9. The lifting and transporting device for a fan assembly according to claim 1, characterized in that: The cross section of the cross beam (1) is "H"-shaped, the sliding assembly (2) is annular, the cross beam (1) passes through the inner cavity of the sliding assembly (2), a pulley (201) is provided at the top of the sliding assembly (2), the pulley (201) is in contact with the top of the cross beam (1), and a hanging ring for hanging a fan assembly is provided at the bottom of the sliding assembly (2).

10. The lifting and transporting device for a fan assembly according to claim 9, characterized in that: The mounting portion (4) further comprises a mounting bolt (18), wherein the mounting portion (4) comprises two clamping plates (401), wherein the clamping plates (401) are provided with a first mounting hole, and the web (101) of the "H"-shaped crossbeam (1) is provided with a second mounting hole, and a clamping groove is formed between the two clamping plates (401), wherein the web (101) is located in the clamping groove and the bottom of the clamping groove abuts against the end surface of the crossbeam (1), and the mounting bolt (18) passes through the first mounting hole and the second mounting hole, and wherein the mounting bolt (18) is provided with a mounting nut (181) capable of locking the clamping plate (401) and the web (101).

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