CN212799404U - Novel lifter - Google Patents

Abstract

The utility model relates to a novel lifter, which comprises a lifting hanging scaffold and a steel wire unreeling mechanism for controlling the lifting hanging scaffold to lift; a micro-motion control device for controlling the steel wire unwinding mechanism to stop working when the lifting platform is lowered to the ground or the steel wires run out is arranged in the steel wire unwinding mechanism; the lifting platform is provided with a counterweight device for preventing the steel wire from derailing due to the no-load of the lifting platform to trigger the micro-motion control device to operate. The utility model discloses a novel riser can stop unreeling when not hanging lamps and lanterns or lamps and lanterns fall to ground or steel wire and walk to the greatest extent, makes the steel wire be difficult to take place to relax in disorder.

Description

Novel lifter

Technical Field

The utility model relates to a lifting device technical field, concretely relates to a novel singly walk a riser for illumination lamps and lanterns.

Background

In order to reduce the maintenance cost of high-altitude lamps, the lamps with the lifting function are widely applied to high-altitude space places such as stages, mines, stadiums, stations, wharfs and the like. The top of the existing high-altitude lamp mostly adopts a single-wire-moving structure lifting device to realize the lifting of the lamp. The single-wire-moving structure lifting device usually adopts a motor to drive an unwinding wheel to rotate, so that a steel wire is wound to realize the lifting function of the high-altitude lamp.

When a lamp descends to the ground, the motor cannot automatically stop operating, the motor continues to drive the unwinding wheel to unwind a steel wire, and the steel wire is loosened and messy in the lifting device, so that the steel wire is easily clamped. In addition, above-mentioned elevating gear, in order to prevent that the steel wire from walking to the end because of motor control unreels the wheel and continue to unreel and burn out the motor, generally can set up to go to the end back motor reversal in order to control unreel the wheel rolling steel wire when the steel wire. However, some users do not want the motor to rotate the wire back and forth immediately after the wire is run out.

How to design a single wire-moving (i.e. pulled by one steel wire) lifting device which is not easy to loose and messy and can stop the operation of a motor after the steel wire is moved out becomes a technical problem which needs to be solved urgently in the field.

Disclosure of Invention

The utility model aims at solving the not enough of prior art, provide a can stop the novel single lifter of walking that unreels when not hanging lamps and lanterns or lamps and lanterns fall to ground or steel wire and walk to the greatest extent.

The utility model adopts the technical proposal that: a novel lifter comprises a lifting hanging scaffold and a steel wire unwinding mechanism for controlling the lifting hanging scaffold to lift; a micro-motion control device for controlling the steel wire unwinding mechanism to stop working when the lifting platform is lowered to the ground or the steel wires run out is arranged in the steel wire unwinding mechanism; the lifting platform is provided with a counterweight device for preventing the steel wire from derailing due to the no-load of the lifting platform to trigger the micro-motion control device to operate.

Preferably, the steel wire unwinding mechanism comprises a support, an unwinding wheel arranged on the support and a driving unit for controlling the unwinding wheel to unwind and unwind the steel wire, and the driving unit controls the unwinding wheel to unwind and unwind the steel wire connected with the lifting platform to drive the lifting platform to lift.

Preferably, the inching control device comprises a guide wheel, a steering wheel and a microswitch which are arranged on the bracket, and a steel wire which is wound and unwound by the unwinding wheel sequentially passes through the steel wire unwinding mechanism by the traction of the guide wheel and the steering wheel to be connected with the lifting hanging scaffold; the micro switch is arranged on the side of the guide wheel, so that the steel wire touches the micro switch when expanding or running out, thereby controlling the driving unit to stop working.

Preferably, the microswitch is provided with a driving element, and the steel wire touches the driving element when expanding or running out so as to trigger the microswitch to control the driving unit to stop working.

Preferably, the steering wheel is positioned right below the unwinding wheel, the guide wheel is positioned obliquely right below the unwinding wheel, and the central axis of the steering wheel is perpendicular to the central axis of the guide wheel.

Preferably, the counterweight device is a counterweight block arranged at the top of the lifting hanging scaffold.

Preferably, the guide wheel is provided with limiting rods for preventing the steel wire from derailing on two sides of the circumferential side surface of the guide wheel.

Preferably, the circumferential sides of the guide wheel and the steering wheel are provided with arc-shaped concave rails for preventing the steel wires from derailing.

Preferably, the lifter further comprises a base arranged below the support, the base is provided with a wire outlet hole, the steering wheel is positioned above the wire outlet hole, and a steel wire wound and unwound by the unwinding wheel is drawn by the guide wheel and the steering wheel to penetrate out of the wire outlet hole and then is fixedly connected with the lifting platform.

Preferably, the bottom of the lifting hanging scaffold is provided with a hook for hanging articles.

Compared with the prior art, the utility model has the following advantage:

1. the utility model discloses a riser, its steel wire unwinding mechanism inside is provided with fine motion control device, when the platform sling falls to ground or the steel wire when walking to the greatest extent, fine motion control device control steel wire unwinding mechanism stop work. The design can prevent the steel wires from being loosened and messed easily; after the steel wire is completely moved, the driving unit stops working, and the lifting hanging scaffold stays in place and cannot rise due to the reverse operation of the driving unit.

2. The utility model discloses a riser through at extension lift platform sling, sets up the counter weight device that increases weight at lift platform sling top promptly, can effectively prevent to lead to the steel wire derailment to trigger the fine motion control device operation because of the lift platform sling is empty.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of another aspect of the present invention.

Fig. 3 is a state schematic diagram in the process of unwinding or winding the steel wire.

FIG. 4 is a diagram showing the relationship between the wire and the microswitch after the wire is completely unwound.

The numbers in the figures indicate:

1-lifting hanging scaffold, 11-hook, 2-micro control device, 21-guide wheel, 22-steering wheel, 23-micro switch, 231-driving element, 24-limiting rod, 241-circumferential protrusion, 3-bracket, 4-unreeling wheel, 5-driving unit, 51-driving motor, 52-driving controller, 6-counterweight device, 7-base, 71-wire outlet and 8-steel wire.

The specific implementation mode is as follows:

in order to enhance the understanding of the present invention, the following detailed description will be made in conjunction with the embodiments and the accompanying drawings. The utility model discloses the accessible is implemented as follows:

referring to fig. 1-3, the novel lifter comprises a lifting platform 1 and a steel wire unwinding mechanism for controlling the lifting platform 1 to lift; and a micro control device 2 for controlling the steel wire unwinding mechanism to stop working when the lifting platform 1 is lowered to the ground or the steel wire 8 runs to the maximum is arranged in the steel wire unwinding mechanism. The steel wire unwinding mechanism comprises a support 3, an unwinding wheel 4 arranged on the support 3 and a driving unit 5 for controlling the unwinding wheel 4 to unwind and unwind a steel wire 8, wherein the driving unit 5 controls the unwinding wheel 4 to unwind and unwind the steel wire 8 connected with the lifting platform 1 to drive the lifting platform 1 to ascend and descend. The driving unit 5 comprises a driving motor 51 and a driving controller 52, wherein the driving controller 52 is connected with a remote controller and mainly controls the driving motor 51 to rotate forwards, reversely and stop working. The bottom of the lifting platform 1 is provided with a hook 11 for hanging articles, and the lamp can be hung on the hook 11.

The micro-motion control device 2 comprises a guide wheel 21, a steering wheel 22 and a micro-motion switch 23 which are arranged on the bracket 3, wherein the steering wheel 22 is positioned right below the unreeling wheel 4, the guide wheel 21 is positioned right obliquely below the unreeling wheel 4, and the central axis of the steering wheel 22 is vertical to the central axis of the guide wheel 21. The steel wire 8 wound and unwound by the unwinding wheel 4 sequentially passes through the steel wire unwinding mechanism and is connected with the lifting hanging scaffold 1 through the traction of the guide wheel 21 and the steering wheel 22; the guide wheel 21 is provided with a limiting rod 24 for preventing the steel wire 8 from derailing on two sides of the circumferential side surface of the guide wheel, and a circumferential protrusion 241 radially and outwardly extending from the outer end of the limiting rod 24. The stopper rod 24 can prevent the steel wire 8 from derailing from the guide wheel 21 during unwinding or winding. The circumferential side surfaces of the guide wheel 21 and the steering wheel 22 are provided with arc-shaped concave rails for preventing the steel wire 8 from derailing, and the steel wire 8 moves in the arc-shaped concave rails of the guide wheel 21 and the steering wheel 22, so that the steel wire 8 can be further prevented from deviating in the unreeling or reeling process. The microswitch 23 is a commercially available microswitch 23, the working principle of which is not explained here. The micro switch 23 is arranged on the side of the guide wheel 21, the micro switch 23 is provided with a driving element 231, and when the steel wire 8 expands or runs out, the micro switch 23 is triggered to touch the driving element 231 to trigger the driving unit 5 to stop working.

The lifting hanging scaffold 1 is provided with a counterweight device 6 for preventing the steel wire 8 from derailing to trigger the micro-motion control device 2 to operate due to the no-load of the lifting hanging scaffold 1. The counterweight device 6 is a counterweight block arranged at the top of the lifting hanging scaffold 1. According to the design, the weight balancing device 6 for increasing the weight is arranged at the lengthened lifting platform 1, namely the top of the lifting platform 1, so that the phenomenon that the steel wire 8 is derailed to trigger the micro-motion control device 2 to operate due to the fact that the lifting platform 1 is unloaded can be effectively prevented.

The lifter further comprises a base 7 arranged below the support 3, a wire outlet hole 71 is formed in the base 7, the steering wheel 22 is located above the wire outlet hole 71, and a steel wire 8 wound and unwound by the unwinding wheel 4 is drawn by the guide wheel 21 and the steering wheel 22 to penetrate through the wire outlet hole 71 and then is fixedly connected with the lifting hanging scaffold 1. The design can ensure that the articles on the lifting platform 1 are in a vertical state in the lifting process.

The working principle is as follows:

1. when the unwinding wheel 4 unwinds or winds the steel wire, a gap exists between the steel wire from the unwinding wheel 4 to the guide wheel 21 and the driving element 231 of the microswitch 23, and the microswitch 23 cannot be triggered; when the lifting hanging scaffold 1 contacts the ground, the steel wire 8 loses gravity and is not pulled, the steel wire expands and moves in the direction of the micro switch 23, the steel wire 8 touches the driving element 231 of the micro switch 23, the driving element 231 triggers the micro switch 23, and the micro switch 23 controls the driving motor 51 to stop working, so that the unwinding wheel 4 does not unwind the steel wire 8, and the steel wire is prevented from being loosened and messy.

2. When the steel wire 8 runs out, the steel wire 8 driven by the unwinding wheel 4 moves towards the direction of the micro switch 23, so that the steel wire 8 touches the driving element 231 of the micro switch 23, specifically, as shown in fig. 4, the driving element 231 triggers the micro switch 23, and the micro switch 23 controls the driving motor 51 to stop working, thereby avoiding the reverse operation of the driving motor 51. When the lifting platform 1 needs to ascend again, the driving motor 51 is started only by remote control, the unreeling wheel 4 is used for reeling the steel wire 8, and the lifting platform 1 ascends.

Finally, it should be noted that: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A novel lifter is characterized by comprising a lifting hanging scaffold (1) and a steel wire unwinding mechanism for controlling the lifting hanging scaffold (1) to lift;

a micro-motion control device (2) for controlling the steel wire unwinding mechanism to stop working when the lifting platform (1) is lowered to the ground or the steel wires run out is arranged in the steel wire unwinding mechanism;

the lifting hanging scaffold (1) is provided with a counterweight device (6) for preventing the steel wire from derailing to trigger the micro-motion control device (2) to operate due to the no-load of the lifting hanging scaffold (1).

2. The novel lifter according to claim 1, wherein the steel wire unwinding mechanism comprises a support (3), an unwinding wheel (4) arranged on the support (3), and a driving unit (5) for controlling the unwinding wheel (4) to unwind and unwind steel wires, and the driving unit (5) controls the unwinding wheel (4) to unwind and unwind the steel wires connected with the lifting platform (1) to drive the lifting platform (1) to lift.

3. The novel lifter as claimed in claim 2, wherein the inching control device (2) comprises a guide wheel (21), a steering wheel (22) and a microswitch (23) which are arranged on the bracket (3), and a steel wire wound and unwound by the unwinding wheel (4) sequentially passes through the steel wire unwinding mechanism and is connected with the lifting hanging scaffold (1) through the traction of the guide wheel (21) and the steering wheel (22); the micro switch (23) is arranged on the side of the guide wheel (21) so that the steel wire touches the micro switch (23) when expanding or running out, thereby controlling the driving unit (5) to stop working.

4. A new elevator according to claim 3, characterized in that the microswitch (23) is provided with a driving element (231), and when the wire expands or runs out, the wire touches the driving element (231) to trigger the microswitch (23) to control the driving unit (5) to stop working.

5. A new elevator according to claim 3, characterized in that the steering wheel (22) is located right below the unwinding wheel (4), the guiding wheel (21) is located obliquely right below the unwinding wheel (4), and the central axis of the steering wheel (22) is perpendicular to the central axis of the guiding wheel (21).

6. A new elevator according to claim 3 or 4 or 5, characterised in that the guide wheels (21) are provided with stop rods (24) on both sides of their circumferential sides to prevent derailment of the wire.

7. A new elevator according to claim 6, characterised in that the circumferential sides of the guide wheels (21) and the diverting wheels (22) are provided with curved groove tracks preventing derailment of the wires.

8. A new elevator according to claim 1 or 2 or 3 or 4 or 5 or 7, characterized in that the counterweight means (6) is a counterweight placed on top of the elevator platform (1).

9. The novel lifter according to claim 3, 4, 5 or 7, characterized in that the lifter further comprises a base (7) arranged below the bracket (3), the base (7) is provided with an outlet hole (71), the steering wheel (22) is positioned above the outlet hole (71), and a steel wire wound and unwound by the unwinding wheel (4) is drawn by the guide wheel (21) and the steering wheel (22) to pass through the outlet hole (71) and then is fixedly connected with the lifting platform (1).

10. A new elevator according to claim 1 or 2 or 3 or 4 or 5 or 7, characterized in that the bottom of the lifting platform (1) is provided with a hook (11) for hanging articles.

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