CN105668445A - Portable lifting device for power distribution construction - Google Patents

Abstract

The invention discloses a portable lifting device for power distribution construction, which comprises a left collar and a right collar. A fixed block, a fixed bolt is arranged between the left fixed block and the right fixed block, a lifting frame is fixed on one side of the left collar, a first rotating shaft and a second rotating shaft are arranged on the lifting frame, and the first gear is fixed on the first rotating shaft , the second shaft is provided with a second gear, the first gear meshes with the second gear, a ratchet and a reel are fixed on the second shaft, a sling is wound on the reel, and a sling is connected to the end of the sling hook up. The beneficial effects obtained by the present invention are: (1) simple structure; (2) high safety performance, and the required torque for shaking the handle is small, which is very labor-saving; (3) has a locking function, which can prevent hooks and power distribution parts from It moves downwards under the force of gravity, further increasing the safety of lifting work.

Description

A portable lifting device for power distribution construction

technical field

The invention relates to a power distribution auxiliary tool, in particular to a portable lifting device for power distribution construction.

Background technique

At present, in the process of power distribution construction, it is necessary to lift various power distribution parts to the top of the utility pole. If the weight of the parts is heavy, a crane is used for hoisting. There is no special lifting device for lifting, so the construction workers have to directly lift the spare parts up with a sling on the top of the utility pole. When lifting, they need to bend down to lift the sling, thus greatly reducing the safety of the construction. , due to the large pulling force required when lifting the sling, it is easy to cause fatigue and reduce the work efficiency of the power distribution work.

Contents of the invention

The problem to be solved by the present invention is to provide a portable lifting device for power distribution construction that is simple in structure, easy to carry and fix, and can improve construction safety and work efficiency.

In order to solve the above problems, the lifting device for portable power distribution construction of the present invention includes a left collar and a right collar, the front and rear ends of the left collar are provided with left fixing blocks, the front and rear ends of the right collar are The rear end is provided with a right fixing block, a fixing bolt is arranged between the left fixing block and the right fixing block, and several fixing bolts are inserted on the left collar and the right collar, and the fixing bolts are connected with the Both the left collar and the right collar are threaded, one side of the left collar is fixed with a lifting frame, the lifting frame is provided with a first rotating shaft and a second rotating shaft, and the first rotating shaft is fixed with The first gear, the second shaft is provided with a second gear, the first gear meshes with the second gear, the gear ratio of the first gear and the second gear is 3-5:1, and the first gear is meshed with the second gear. A crank is also fixed on the first rotating shaft, a ratchet and a reel are also fixed on the second rotating shaft, a ratchet is hinged on the lifting frame on one side of the ratchet, and the ratchet matches the ratchet, A spring fixing pin is fixed on the lifting frame on one side of the ratchet, and a tension spring is bolted on the spring fixing pin, and the other end of the tension spring is connected with the ratchet. A hanging rope is wound with a hook attached to the end of the hanging rope.

Further, in order to reduce the weight of the lifting frame and improve the handling performance of the whole device, in the lifting device for portable power distribution construction of the present invention, a cavity is provided on the lifting frame, and the first gear, the second gear and the reel Installed in the cavity, the ratchet, pawl and crank are installed outside the cavity.

Further, in order to prevent the lifting rope from coming out of the reel during use, in the lifting device for portable power distribution construction of the present invention, the reel is provided with a groove, and the lifting rope is wound in the groove.

Further, in order to provide good lighting conditions for the lifting frame, in the lifting device for portable power distribution construction of the present invention, the lifting frame is provided with a battery box, the battery box is provided with a battery, and the battery box is provided with a switch button, and several LED lights are also arranged on the lifting frame, and the LED lights are connected in series with the battery and the switch button after being connected in parallel.

Further, in order to ensure the smooth rotation of the first rotating shaft and the second rotating shaft, in the lifting device for portable power distribution construction of the present invention, rotation bearings.

The beneficial effects obtained by the present invention are: (1) simple structure; (2) high safety performance, and the required torque for shaking the handle is small, which is very labor-saving; (3) has a locking function, which can prevent hooks and power distribution parts from It moves downward under the action of gravity, which further improves the safety of lifting work; (4) can reduce the weight of the lifting frame and improve the handling performance of the whole device; (5) There is a groove on the drum, and the lifting rope is wound in the groove (6) It can provide good lighting conditions; (7) It can ensure the smooth rotation of the first rotating shaft and the second rotating shaft.

Description of drawings

Fig. 1 is a front view of the present invention.

Figure 2 is a top view of the present invention.

Fig. 3 is a sectional view of plane A-A in Fig. 2 .

Fig. 4 is a schematic diagram of the transmission structure of the first gear and the second gear.

In the figure: 1. Left collar, 2. Right fixing block, 3. Fixing bolt, 4. Lifting frame, 5. First gear,

6. crank handle, 7. first rotating shaft, 8. ratchet wheel, 9. second rotating shaft, 10. spring fixing pin, 11. tension spring,

12. LED light, 13. Pawl, 14. Hanging rope, 15. Hook, 16. Left fixed block, 17. Switch button,

18, battery box, 19, rotating bearing, 20, reel, 21, groove, 22, second gear, 23, right collar,

24, set bolt, 25, battery.

detailed description

As shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the lifting device for portable power distribution construction of the present invention includes a left collar 1 and a right collar 23, and the front end and the rear end of the left collar 1 are all provided with There is a left fixed block 16, the front end and the rear end of the right collar 23 are provided with a right fixed block 2, and a fixed bolt 3 is arranged between the left fixed block 16 and the right fixed block 2, and the left collar 1 And on the right collar 23, several set bolts 24 are also inserted, and the set bolts 24 are threaded with the left sleeve body 1 and the right sleeve body 23, and one side of the left collar 1 is fixed with A lifting frame 4, the lifting frame 4 is provided with a first rotating shaft 7 and a second rotating shaft 9, the first rotating shaft 7 is fixed with a first gear 5, and the second rotating shaft 9 is provided with a second gear 22, The first gear 5 is meshed with the second gear 22, the gear ratio between the first gear 5 and the second gear 22 is 3-5:1, and a crank handle 6 is fixed on the first rotating shaft 7, A ratchet 8 and a reel 20 are also fixed on the second rotating shaft 9, and a ratchet 13 is hinged on the lifting frame 4 on one side of the ratchet 8, and the ratchet 13 is matched with the ratchet 8. A spring fixing pin 10 is fixed on the lifting frame 4 on one side of the ratchet 13, and a tension spring 11 is bolted on the spring fixing pin 10, and the other end of the tension spring 11 is connected with the ratchet 13, A suspension rope 14 is wound on the reel 20, and a hook 15 is connected to the end of the suspension rope 14; a cavity is provided on the lifting frame 4, and the first gear 5, the second gear 22 and the reel The cylinder 20 is installed in the cavity, and the ratchet 8, pawl 13 and crank 6 are installed outside the cavity; the reel 20 is provided with a groove 21, and the sling 14 is wound in the groove 21; The lifting frame 4 is provided with a battery box 18, the battery box 18 is provided with a battery 25, the battery box 18 is provided with a switch button 17, and the lifting frame 4 is also provided with several LED lights 12, The LED lights 12 are connected in series with the battery 25 and the switch button 17 after being connected in parallel; a rotating bearing 19 is provided between the first rotating shaft 7 and the lifting frame 4 and between the second rotating shaft 9 and the lifting frame 4 .

The lifting device for portable power distribution construction of the present invention has a simple structure. When it is necessary to lift the power distribution parts, the construction personnel will first transport the whole device to the top of the utility pole, and then pass the fixing bolt 3, the left fixing block 16 and the right The fixing block 2 fixes the left collar 1 and the right collar 23 on the utility pole, and then tightens the fixing bolt 24 to further fix the left collar 1 and the right collar 23, and then the construction personnel connect the pawl 13 with the ratchet 8 is separated, after the ratchet 13 is separated from the ratchet 8, under the action of the gravity of the hook 15 itself, the stay cord 14 will be pulled to move down, and when the stay cord 14 moves down, it will drive the reel 20 to rotate counterclockwise, and the roll When the cylinder 20 rotates counterclockwise, it will drive the second rotating shaft 9 and the second gear 22 to rotate counterclockwise. Since the second gear 22 is meshed with the first gear 5, it will also drive the first gear 5 and the first rotating shaft 7. Rotate the handle 6 clockwise, when the hook 15 moves down to a suitable height, release the pawl 13, the pawl 13 resets under the tension of the tension spring 11, and combines with the pawl 13 again, thereby the second The second rotating shaft 9 is locked, and the hook 15 no longer moves downward. At this time, the ground personnel hang the power distribution parts on the hook 15, and finally the construction personnel at the top of the utility pole shake the crank handle 6 counterclockwise, and the crank handle 6 is in turn Drive the first rotating shaft 7 and the first gear 5 to rotate counterclockwise, while the first gear 5 rotates counterclockwise, because it meshes with the second gear 22, it will drive the second gear 22, the second rotating shaft 9 and the reel 20 Rotate clockwise, while the reel 20 is rotating clockwise, under the drive of the reel 20, pull the sling 14, the hook 15 and the power distribution parts hanging on the hook 15 to move upwards to complete the lifting work, which is different from the existing Compared with the operation mode of directly lifting with a suspension rope, the construction personnel only need to shake the handle 6 and do not need to bend down to pull the rope, so the safety performance is high. In addition, because the gear between the first gear 5 and the second gear 22 The ratio is 3-5:1, so the torque needed to shake the crank handle 6 is small, which is very labor-saving.

When lifting the power distribution parts, the second rotating shaft 9 rotates in a clockwise direction. At this time, the ratchet 8 and the pawl 13 are combined, and the second rotating shaft 9 cannot rotate counterclockwise, so it has a locking function, which can prevent the hook 15 and The power distribution components move downwards under the force of gravity, further increasing the safety of the lifting device.

Lifting frame 4 is provided with a cavity, and described first gear 5, second gear 22 and reel 20 are installed in the cavity, ratchet 8, ratchet 13 and crank 6 are installed outside the cavity, thereby can reduce Lift the weight of frame 4 and improve the handling performance of the whole device.

The reel 20 is provided with a groove 21, and the suspension rope 14 is wound in the groove 21, which can prevent the suspension rope 14 from coming out of the reel during use.

Lifting frame 4 is provided with battery box 18, is provided with battery 25 in battery box 18, and described battery box 18 is provided with switch button 17, and lifting frame 4 is also provided with several LED lamps 12, and after LED lamp 12 is connected in parallel with The battery 25 and the switch button 17 are connected in series, so when the night or the light is not good, turn on the switch button 17 to start the LED lamp 12 to provide good lighting conditions.

Rotation bearings 19 are provided between the first rotating shaft 7 and the lifting frame 4 and between the second rotating shaft 9 and the lifting frame 4 , thus ensuring smooth rotation of the first rotating shaft 7 and the second rotating shaft 9 .

Claims (5)

1. A lifting device for portable power distribution construction, characterized in that: it comprises a left collar (1) and a right collar (23), and the front and rear ends of the left collar (1) are provided with left fixing blocks (16), the front end and the rear end of the right collar (23) are provided with a right fixed block (2), and a fixed bolt (3) is arranged between the left fixed block (16) and the right fixed block (2). ), said left collar (1) and right collar (23) are also inserted with several set bolts (24), said set bolts (24) and left sleeve body (1) and right sleeve body ( 23) are all threaded connections, one side of the left collar (1) is fixed with a lifting frame (4), and the lifting frame (4) is provided with a first rotating shaft (7) and a second rotating shaft (9 ), the first shaft (7) is fixed with a first gear (5), the second shaft (9) is provided with a second gear (22), the first gear (5) and the second gear (22) are meshed, the gear ratio of the first gear (5) and the second gear (22) is 3-5:1, and a crank (6) is also fixed on the first rotating shaft (7), A ratchet (8) and a reel (20) are also fixed on the second rotating shaft (9), and a ratchet (13) is hinged on the lifting frame (4) on one side of the ratchet (8). The ratchet (13) is matched with the ratchet (8), and a spring fixing pin (10) is fixed on the lifting frame (4) on one side of the ratchet (13), and the spring fixing pin (10) is bolted A tension spring (11) is connected, and the other end of the tension spring (11) is connected with the ratchet (13), and a suspension rope (14) is wound on the reel (20), and the suspension rope The end of (14) is connected with a hook (15). 2. The lifting device for portable power distribution construction according to claim 1, characterized in that: the lifting frame (4) is provided with a cavity, the first gear (5), the second gear (22) And the reel (20) is installed in the cavity, and the ratchet (8), ratchet (13) and crank (6) are installed outside the cavity. 3. The lifting device for portable power distribution construction according to claim 1, characterized in that: the reel (20) is provided with a groove (21), and the sling (14) is wound around the groove (21) )middle. 4. The lifting device for portable power distribution construction according to claim 1, characterized in that: the lifting frame (4) is provided with a battery box (18), and the battery box (18) is provided with a battery (25 ), the battery box (18) is provided with a switch button (17), and several LED lights (12) are also provided on the lifting frame (4), and the LED lights (12) are connected in parallel with the battery (25) and Switch buttons (17) are connected in series. 5. The lifting device for portable power distribution construction according to claim 1, characterized in that: between the first rotating shaft (7) and the lifting frame (4) and between the second rotating shaft (9) and the lifting frame (4) Rolling bearings (19) are arranged between them.