CN212687437U - Lifting device with brake switch - Google Patents
Lifting device with brake switch Download PDFInfo
- Publication number
- CN212687437U CN212687437U CN202021042931.5U CN202021042931U CN212687437U CN 212687437 U CN212687437 U CN 212687437U CN 202021042931 U CN202021042931 U CN 202021042931U CN 212687437 U CN212687437 U CN 212687437U
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- brake switch
- steel wire
- wheel
- lifting device
- lifting
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Abstract
The utility model relates to a lifting device with a brake switch, which comprises a lifting hanging scaffold, a steel wire unreeling mechanism and a brake switch; the steel wire unwinding mechanism comprises an unwinding wheel and a driving unit for controlling the unwinding wheel to unwind and unwind steel wires, and the driving unit controls the unwinding wheel to unwind and unwind the steel wires connected with the lifting hanging scaffold to drive the lifting hanging scaffold to lift; the brake switch controls the driving unit to be turned on or off by sensing the gravity of the steel wire. The utility model discloses a lifting device, when the lift platform sling contacted ground, the steel wire lost gravity and can't pull brake switch, and the drive unit stop work for the unreeling wheel no longer unreels the steel wire, thereby can effectively avoid the steel wire to appear at the inside lax in disorder of lifting device and the condition of stuck.
Description
Technical Field
The utility model relates to an illumination lamps and lanterns elevating gear field, concretely relates to take brake switch's elevating gear.
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.
Disclosure of Invention
The utility model aims at solving the not enough of prior art, thereby provide one kind when lamps and lanterns descend the ground motor stop operation avoid the steel wire by the take brake switch's of card elevating gear.
The utility model adopts the technical proposal that: a lifting device with a brake switch comprises a lifting hanging scaffold, a steel wire unwinding mechanism and the brake switch;
the steel wire unwinding mechanism comprises an unwinding wheel and a driving unit for controlling the unwinding wheel to unwind and unwind steel wires, and the driving unit controls the unwinding wheel to unwind and unwind the steel wires connected with the lifting hanging scaffold to drive the lifting hanging scaffold to lift;
the brake switch controls the driving unit to be turned on or off by sensing the gravity of the steel wire.
Preferably, the brake switch is provided with a gravity switch assembly for sensing the gravity of a steel wire connected with the lifting platform.
Preferably, the gravity switch assembly comprises a movable guide pulley and a hook member connected with the brake switch, and the other end of the hook member is connected with the movable guide pulley; the steel wire that the unreeling wheel receive and releases slides and pulls the hook piece and control the opening or closing of brake switch through the activity guide pulley.
Preferably, the lifting device further comprises a base, a support is arranged on the base, the steel wire unwinding mechanism and the brake switch are arranged on the support, a wire outlet hole is formed in the base, and the movable guide pulley is located above the wire outlet hole.
Preferably, one end of the movable guide pulley is provided with a connecting plate connected with the hook piece, and the other end of the movable guide pulley is movably hinged on the bracket; the steel wire wound and unwound by the unwinding wheel penetrates out of the wire outlet hole through the movable guide pulley and then is fixedly connected with the lifting hanging scaffold.
Preferably, the support is provided with a guide mechanism for guiding the steel wire unreeled by the unreeling wheel to the movable guide pulley.
Preferably, the guide mechanism comprises a guide wheel positioned below the unwinding wheel, and a limiting rod for preventing the steel wire from deviating is arranged between the unwinding wheel and the guide wheel.
Preferably, the tangent line of the vertical direction of the outer edge of the unwinding wheel is vertical to the central axis of the guide wheel, so that the steel wire wound and unwound by the unwinding wheel is transited to the movable guide pulley through the limiting rod and the guide wheel in sequence.
Preferably, the bracket is provided with a fixing plate for fixing the brake switch.
Preferably, the bottom of the lifting platform is provided with a hook for hanging the lamp.
Compared with the prior art, the utility model has the following advantage: the utility model discloses a lifting device is provided with brake switch on its unwinding mechanism, and when the lift platform sling contacted ground, the steel wire lost gravity and can't pull brake switch, and the drive unit stop work for the unreeling wheel no longer unreels the steel wire, thereby can effectively avoid the steel wire to appear at the inside condition of relaxing in disorder and blocked of lifting device.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a schematic diagram of the positional relationship of the brake switch.
Fig. 4 is a schematic structural view of the movable guide pulley.
The numbers in the figures indicate:
1-lifting hanging scaffold, 2-steel wire unreeling mechanism, 21-unreeling wheel, 22-driving unit, 221-driving motor, 222-driving controller, 3-brake switch, 31-gravity switch component, 311-movable guide pulley, 312-hook component, 313-connecting plate, 4-hook, 5-base, 51-wire outlet, 6-support, 61-fixing plate, 7-guiding mechanism, 71-guiding wheel, 72-limiting rod 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. 1-4, a lifting device with a brake switch comprises a lifting hanging scaffold 1, a steel wire unreeling mechanism 2 and a brake switch 3; the steel wire unwinding mechanism 2 comprises an unwinding wheel 21 and a driving unit 22 for controlling the unwinding wheel 21 to unwind and unwind steel wires, and the driving unit 22 controls the unwinding wheel 21 to unwind and unwind the steel wires 8 connected with the lifting platform sling 1 so as to drive the lifting platform sling 1 to lift. The bottom of the lifting hanging scaffold 1 is provided with a hook 4 for hanging lamps, and the hook can be used for hanging lamps. The driving unit 22 includes a driving motor 221 and a driving controller 222, and mainly controls the driving motor to rotate forward, backward, and stop. The brake switch 3 controls the on or off of the driving unit 22 through the gravity of the sensing steel wire 8. The lifting device further comprises a base 5, a support 6 is arranged on the base 5, the steel wire unwinding mechanism 2 and the brake switch 3 are arranged on the support 6, a wire outlet hole 51 is formed in the base 5, and a steel wire wound and unwound by the unwinding wheel 21 penetrates through the wire outlet hole 51 and then is fixedly connected with the lifting hanging scaffold 1. When lifting platform 1 contacted ground, steel wire 8 lost gravity and can't pull brake switch 3, and drive unit 22 stop work for unreeling wheel 21 no longer unreels the steel wire, thereby can effectively avoid the steel wire in that elevating gear is inside to relax in disorder and the condition that is blocked to appear.
The brake switch 3 is provided with a gravity switch component 31 for sensing the gravity of a steel wire connected with the lifting hanging scaffold 1. The gravity switch assembly 31 comprises a movable guide pulley 311 and a hook member 312 connected with the brake switch 3, and the other end of the hook member 312 is connected with the movable guide pulley 311. The steel wire wound and unwound by the unwinding wheel 21 slides through the movable guide pulley 311 to pull the hook member 312 to control the brake switch 3 to be turned on or off. One end of the movable guide pulley 311 is provided with a connecting plate 313 connected with the hook member 312, and the other end is movably hinged on the bracket 6. The bracket 6 is provided with a fixing plate 61 for fixing the brake switch 3. When a heavy object on the lifting hanging plate 1 descends, a steel wire passes through the movable guide pulley 311, the movable guide pulley 311 is pulled under the action of gravity, the connecting plate 313 on the movable guide pulley 311 moves towards the direction far away from the hook member 312, and the movable guide pulley 311 is hinged on the support 6, so that the movable guide pulley 311 moves downwards at one end where the connecting plate 313 is located, the hook member 312 is pulled, the hook member 312 pulls the brake switch 3, the brake switch 3 controls the driving motor to be electrified, and the driving motor controls the unwinding wheel 21 to unwind the steel wire; when the heavy object on the lifting platform 1 descends to the ground, the steel wire loses gravity, the movable guide pulley 311 is not pulled downwards any more, the connecting plate 313 resets, the hook member 312 resets, and the brake switch 3 controls the drive motor to be powered off, so that the unwinding wheel 21 does not unwind the steel wire any more.
The bracket 6 is provided with a guide mechanism 7 for drawing the steel wire unreeled by the unreeling wheel 21 to the movable guide pulley 311. The guide mechanism 7 comprises a guide wheel 71 positioned below the unwinding wheel 21, and a limiting rod 72 for preventing the deviation of the steel wire is arranged between the unwinding wheel 21 and the guide wheel 71. The outer end of the limiting rod 72 is perpendicular to the central axis of the guide wheel 71 along the vertical direction tangent line of the outer edge of the unreeling wheel 21, and the movable guide pulley 311 is located above the wire outlet hole 51, so that the steel wire reeled and unreeled by the unreeling wheel 21 is transited to the movable guide pulley 311 through the limiting rod 72 and the guide wheel 71 in sequence, and finally penetrates out of the wire outlet hole 51 to be connected with the lifting platform 1. The guide mechanism 7 can effectively prevent the steel wire from deviating in the process of entering the wire outlet hole 51 after being unreeled from the unreeling wheel 21, and ensure that the articles on the lifting hanging scaffold 1 are in a vertical state.
The working principle is as follows: when an article hung on the lifting hanging scaffold 1 needs to descend, the article pulls the steel wire, the gravity of the steel wire pulls the brake switch 3 through the pulley, the brake switch 3 controls the driving motor to be electrified to start operation, and the unreeling wheel 21 unreels the steel wire; when the article falls to the ground, the steel wire loses gravity and cannot pull the brake switch 3, the driving motor is powered off to stop operation, and the unwinding wheel 21 stops unwinding the steel wire; when the lifting platform 1 needs to ascend again, the steel wire needs to be pulled, so that the steel wire obtains gravity to pull the brake switch 3, the driving motor is started, and the steel wire is wound and ascended.
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 lifting device with a brake switch is characterized by comprising a lifting hanging scaffold (1), a steel wire unreeling mechanism (2) and a brake switch (3);
the steel wire unreeling mechanism (2) comprises an unreeling wheel (21) and a driving unit (22) for controlling the unreeling wheel (21) to unreel and unreel steel wires, and the driving unit (22) controls the unreeling wheel (21) to unreel the steel wires connected with the lifting hanging scaffold (1) to drive the lifting hanging scaffold (1) to lift;
the brake switch (3) controls the opening or closing of the driving unit (22) by sensing the gravity of the steel wire.
2. A lifting device with a brake switch according to claim 1, characterized in that the brake switch (3) is provided with a gravity switch assembly (31) for sensing the gravity of a steel wire connected to the lifting platform (1).
3. A lifting device with a brake switch according to claim 2, wherein the gravity switch assembly (31) comprises a movable guide pulley (311) and a hook member (312) connected to the brake switch (3), and the other end of the hook member (312) is connected to the movable guide pulley (311); the steel wire wound and unwound by the unwinding wheel (21) slides through the movable guide pulley (311) to pull the hook piece (312) to control the opening or closing of the brake switch (3).
4. The lifting device with the brake switch as claimed in claim 3, further comprising a base (5), wherein a support (6) is disposed on the base (5), the steel wire unwinding mechanism (2) and the brake switch (3) are disposed on the support (6), a wire outlet hole (51) is disposed on the base (5), and the movable guide pulley (311) is disposed above the wire outlet hole (51).
5. A lifting device with a brake switch according to claim 4, characterized in that one end of the movable guide pulley (311) is provided with a connecting plate (313) connected with the hook member (312), and the other end is movably hinged on the bracket (6); the steel wire wound and unwound by the unwinding wheel (21) passes through the wire outlet hole (51) through the movable guide pulley (311) and then is fixedly connected with the lifting hanging scaffold (1).
6. A lifting device with a brake switch according to claim 5, characterized in that the bracket (6) is provided with a guiding mechanism (7) for guiding the steel wire unwound by the unwinding wheel (21) to the movable guide pulley (311).
7. A lifting device with a brake switch according to claim 6, characterized in that the guiding mechanism (7) comprises a guiding wheel (71) positioned below the unwinding wheel (21), and a limiting rod (72) for preventing the deviation of the steel wire is arranged between the unwinding wheel (21) and the guiding wheel (71).
8. The lifting device with the brake switch according to claim 7, wherein a vertical direction tangent line of the outer edge of the unwinding wheel (21) is perpendicular to a central axis of the guide wheel (71), so that a steel wire wound and unwound by the unwinding wheel (21) is transited to the movable guide pulley (311) through the limiting rod (72) and the guide wheel (71) in sequence.
9. A lifting device with a brake switch according to claim 5, characterized in that the bracket (6) is provided with a fixing plate (61) for fixing the brake switch (3).
10. A lifting device with a brake switch as claimed in claim 1 or 2 or 3 or 4 or 6 or 7 or 8 or 9, characterized in that the bottom of the lifting platform (1) is provided with a hook (4) for hanging a lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021042931.5U CN212687437U (en) | 2020-06-08 | 2020-06-08 | Lifting device with brake switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021042931.5U CN212687437U (en) | 2020-06-08 | 2020-06-08 | Lifting device with brake switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212687437U true CN212687437U (en) | 2021-03-12 |
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ID=74890941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021042931.5U Active CN212687437U (en) | 2020-06-08 | 2020-06-08 | Lifting device with brake switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212687437U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114261913A (en) * | 2021-11-19 | 2022-04-01 | 广州市震泓科技股份有限公司 | Non-steel wire stress hanging anti-falling lifting device and control method |
-
2020
- 2020-06-08 CN CN202021042931.5U patent/CN212687437U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114261913A (en) * | 2021-11-19 | 2022-04-01 | 广州市震泓科技股份有限公司 | Non-steel wire stress hanging anti-falling lifting device and control method |
| CN114261913B (en) * | 2021-11-19 | 2024-03-01 | 广州市震泓科技股份有限公司 | Non-steel wire stress hanging anti-falling lifting device and control method |
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