CN205990204U - Cable overhauls manhole cover lifting device - Google Patents

Abstract

The utility model provides a lifting device for a cable maintenance manhole cover, which includes a bracket, and the bracket includes a base, a vertical support rod and a top beam. The top beam is provided with a lifting mechanism, and the lifting mechanism includes a driving motor, a steel wire rope, The fixed pulley and the lifting disc, the drive motor is arranged at one end of the top beam, the fixed pulley is arranged at the other end of the top beam, one end of the steel wire rope is connected to the output shaft of the drive motor, and the other end of the steel wire rope goes around The fixed pulley is connected on the lifting disc, and the lower surface of the lifting disc is provided with a hook that can extend into the lifting hole of the well cover. The utility model uses the driving motor to drive the upward movement of the well cover, which greatly reduces the labor intensity of the maintenance personnel. At the same time, the utility model only needs one person to operate, which greatly saves labor costs; Falling and injuring people.

Description

Cable manhole cover lifting device

technical field

The utility model belongs to auxiliary equipment for cable maintenance, in particular to a lifting device for a cable maintenance manhole cover.

Background technique

According to the requirements for cable line maintenance work, the cable inspection manhole cover needs to be lifted and moved during the cable line inspection work to inspect the equipment and facilities in the cable trench. Usually, the way to lift and move the well cover is that the operator holds a long operating rod with a hook, puts the hook of the operating rod into the lifting hole of the manhole cover and hangs it firmly, and lifts the manhole cover by lifting the operating rod with both hands, which is labor-intensive. , due to the large weight difference of the cable maintenance manhole cover, some manhole covers are thicker and heavy, requiring two people to lift and move, which consumes manpower, and because sediment is easy to accumulate between the manhole cover and the frame gap, the manhole cover is sealed and difficult to lift, hindering The efficient progress of manhole cover lifting has greatly affected the efficiency of cable maintenance.

The Chinese patent No. 201320736292.6 discloses a cable maintenance manhole cover lifting tool, which includes an operating rod, a support frame and a hook. The operating rod is made of high-strength steel pipe, and one end of the operating rod is provided with a connecting ring. A hanging ring is provided, the other end of the hook is bent into a hook shape, the hook is movably set on the connecting ring through the hanging ring, and the support frame is fixed on the joystick close to the connecting ring. The above-mentioned lifting tools use the principle of leverage to efficiently and conveniently lift the mobile cable maintenance manhole cover, reduce the labor intensity and number of maintenance personnel, and improve work efficiency. However, this method still uses manual lifting, which cannot significantly reduce the labor intensity of maintenance personnel. At the same time, the hook on the operating rod can only be hooked on one of the lifting holes on the manhole cover, and the manhole cover cannot be lifted stably and reliably. During the lifting process, the manhole cover is prone to tilt and the hook will fall off, resulting in the fall of the manhole cover. In severe cases It may even injure maintenance personnel.

Utility model content

Aiming at the deficiencies in the prior art, the utility model provides a cable manhole cover lifting device, which reduces the labor intensity of workers, saves labor costs, and prevents people from being injured due to accidents.

In order to achieve the above object, the utility model adopts the following technical solutions:

A cable maintenance manhole cover lifting device, comprising a bracket, the bracket includes a base, a vertical support rod and a top beam, the top beam is provided with a lifting mechanism, and the lifting mechanism includes a driving motor, a wire rope, a fixed pulley and a lifting circle The drive motor is set at one end of the top beam, the fixed pulley is set at the other end of the top beam, one end of the wire rope is connected to the output shaft of the drive motor, and the other end of the wire rope is connected to the lifting On the disk, the lower surface of the lifting disk is provided with a hook that can extend into the lifting hole of the well cover.

Further, a control switch is also included, and the power line of the drive motor is connected to an external power supply through the control switch.

Further, the vertical support rod is a telescopic rod.

Further, the lower surface of the lifting disc is provided with several threaded holes, and the upper end of the hook is connected in the threaded holes.

Further, the lower surface of the base is provided with rollers.

The utility model has the following beneficial effects:

1. The utility model uses the drive motor to drive the well cover to move up. Compared with the existing lever-type lifting mechanism, the maintenance personnel only need to control the positive and negative rotation of the drive motor, and do not need to rely on manpower to move the well cover, greatly The labor intensity of maintenance personnel is reduced. At the same time, the utility model only needs one person to operate, and does not require multiple people to work together, which greatly saves labor costs; The manhole cover is driven up by driving the motor, so there will be no accidents that will cause the manhole cover to fall and hurt people.

2. Compared with the existing lifting device, the utility model has a simple structure and can be popularized and applied on a large scale.

Description of drawings

Fig. 1 is the structural representation of the utility model.

detailed description

As shown in Figure 1, the device includes a bracket, the bracket includes a base 1, a vertical support rod 2 and a top beam 3, the top beam 3 is provided with a lifting mechanism, and the lifting mechanism includes a drive motor 4, a wire rope 5, a fixed pulley 6 and a lifting mechanism. The disc 7, the drive motor is arranged at one end of the top beam 3, the fixed pulley 6 is arranged at the other end of the top beam 3, one end of the wire rope 5 is connected to the output shaft 4a of the drive motor 4, and the other end of the wire rope 5 goes around the fixed pulley 6 is connected on the lifting disk 7, and the lower surface of the lifting disk 7 is provided with a hook 8 that can stretch into the well cover lifting hole.

The working principle of the utility model is as follows: firstly, start the reverse rotation of the drive motor 4, put down the lifting disc 7, then extend the hook on the lower surface of the lifting disc 7 into the lifting hole of the well cover, hang the hook firmly, and finally start The drive motor rotates forward to lift the manhole cover, and at this time, workers can enter the maintenance well for maintenance work.

In order to facilitate control, the utility model also includes a control switch 10, the power line 9 of the drive motor 4 is connected to an external power supply through the control switch 10, when working, first press the reverse button on the control switch 10 to put down the lifting disc 7, After the hook 8 hooks the lifting hole, press the forward rotation button on the control switch 10 to lift the disc 7.

In order to adapt to people of different heights entering the maintenance shaft for cable maintenance, the vertical support rod 2 of the utility model is a telescopic rod, and there are various types of telescopic rods. The telescopic rod of the utility model is composed of several connecting rods with different diameters. Adjusting bolts 11 are used to lock between two adjacent sections. When adjusting the height of the telescopic rod, it is only necessary to loosen the adjusting bolts 11.

Due to the different distribution of lifting holes on the manhole cover, one lifting hole is usually arranged on the left and right sides of the manhole cover. Of course, there are also multiple lifting holes on some manhole covers, so that the manhole cover can be fixed firmly and prevent the manhole cover from falling and being injured during the lifting process. Personnel, therefore the present embodiment is provided with a plurality of threaded holes on the lower surface of the lifting disc 7, the threaded holes are evenly distributed, each threaded hole is connected with a hook 8, and the upper end of the hook 8 is connected in the threaded hole. The advantage of this connection method is that because the hook is detachable, the hook 8 can be fixed by selecting the corresponding threaded hole according to the distribution of the lifting holes, so that it can adapt to the lifting operation of different well covers; in addition, the lifting disc 7 can be set With multiple hooks 8, compared with the existing lifting device, the well cover can rise steadily without inclination during the lifting process, and the hooks can firmly hook the well cover without falling off.

In order to adjust the position of the lifting device conveniently, the utility model is provided with a roller 12 on the lower surface of the base 1. When the position of the lifting device needs to be moved, it only needs to be manually pushed, and the movement is convenient.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the utility model can be Modifications or equivalent replacements of the technical solutions without departing from the spirit and scope of the technical solutions of the utility model shall be covered by the claims of the utility model.

Claims (5)

1. a kind of cable overhauls manhole cover lifting device, and including support, described support includes base (1), vertical support bar (2) and top Portion's crossbeam (3), described top cross-bar (3) is provided with hoisting mechanism, described hoisting mechanism includes motor (4), steel wire rope (5), fixed pulley (6) and lifting disk (7), described motor is arranged on one end of top cross-bar (3), described fixed pulley (6) It is arranged on the other end of top cross-bar (3), one end of described steel wire rope (5) is connected on the output shaft (4a) of motor (4), The other end of steel wire rope (5) bypasses fixed pulley (6) and is connected in lifting disk (7), the lower surface setting of described lifting disk (7) There is the hook (8) that can put in manhole cover lifting in the hole.

2. cable according to claim 1 overhauls manhole cover lifting device it is characterised in that also including controlling switch (10), The power line (9) of described motor (4) connects external power source by controlling switch (10).

3. cable maintenance manhole cover lifting device according to claim 1 is it is characterised in that described vertical support bar (2) is Expansion link.

4. cable according to claim 1 maintenance manhole cover lifting device is it is characterised in that under described lifting disk (7) Surface offers several screwed holes, and the upper end of described hook (8) is connected to screw thread in the hole.

5. cable according to claim 1 maintenance manhole cover lifting device is it is characterised in that the lower surface of described base (1) It is provided with roller (12).