CN211971695U - Aerial working platform safety arrangement - Google Patents

Abstract

The utility model discloses an aerial working platform safety arrangement, comprising a base plate, the fixed elevating system that is provided with in bottom plate upper end, the elevating system upper end is provided with the workstation, the fixed guardrail that is provided with in workstation upper end, the guardrail middle part is provided with the door plant, left side through the hinge activity the draw-in groove has been seted up at the inboard middle part of door plant, left side the door plant is inside to be provided with the electro-magnet in draw-in groove one side is fixed, the right side the fixed telescopic link that is provided with in inboard middle part of door plant, the fixed fixture block that is provided with of one end that the telescopic link is close to the draw-in groove, the fixed switching mechanism that is provided with in workstation. The utility model discloses excellent in use effect can make the mutual block lock of door plant dead automatically through on-off mechanism when the workstation of device risees, and the workstation does not descend the end door plant just unable, can ensure the security of staff when high altitude construction.

Description

Aerial working platform safety arrangement

Technical Field

The utility model relates to an aerial working platform technical field specifically is an aerial working platform safety arrangement.

Background

The aerial work platform is a movable aerial work product for serving aerial work, equipment installation, maintenance and the like in various industries.

The related products of the aerial work platform mainly comprise: a scissor type aerial work platform, a trailer type aerial work platform, a crank arm type aerial work platform, a straight arm type aerial work platform, an aluminum alloy aerial work platform, a nested cylinder type aerial work platform and a spider type aerial work platform.

However, most of the door panels at the upper end of the workbench of the existing aerial work platform are locked and opened manually, but workers may forget to lock the door panels sometimes after entering the upper end of the workbench in work, which is quite dangerous, and the existing aerial work platform lacks a safety protection device for automatically closing the door panels.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an aerial working platform safety arrangement to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a safety protection device for an aerial work platform comprises a bottom plate, wherein a lifting mechanism is fixedly arranged at the upper end of the bottom plate, a workbench is arranged at the upper end of the lifting mechanism, a guardrail is fixedly arranged at the upper end of the workbench, a door plate is movably arranged at the middle part of the guardrail through a hinge, a clamping groove is formed in the middle part of the inner side of the door plate at the left side, an electromagnet is fixedly arranged in the door plate at one side of the clamping groove at the left side, a telescopic rod is fixedly arranged in the middle part of the inner side of the door plate at the right side, a clamping block is fixedly arranged at one end, close to the clamping groove, of the telescopic rod, a switching mechanism is fixedly arranged at one side of the workbench and comprises a fixed frame, a connecting rod, a first contact and a second contact, a fixed, the fixed frame is internally and fixedly provided with a second contact at the lower end of the first contact, one side of the upper end of the bottom plate, which is far away from the fixed frame, is fixedly provided with a storage battery, and the storage battery is electrically connected with the electromagnet through the first contact, the second contact and the electromagnet.

Preferably, the fixed third contact that is provided with in inside one side of draw-in groove, the fixed fourth contact that is provided with in one side that the fixture block is close to the third contact, the fixed warning light that is provided with in door plant upper end, the battery passes through electric connection between third contact and fourth contact and the warning light, and the staff can judge through the warning light that the door plant has or not to close well to the security when can further improve the device and use.

Preferably, the four corners of the surface of the lower end of the bottom plate are respectively and movably provided with a universal wheel, and the device can be moved conveniently through the universal wheels.

Preferably, the bottom plate surface is provided with the fixed block in universal wheel one side is fixed, the fixed block is inside to be provided with the screw rod through the screw thread activity, the screw rod lower extreme is provided with the backup pad through the bearing activity, can provide further stability for the device when the device uses through backup pad and screw rod.

Preferably, the upper end of the screw rod is fixedly provided with a rotating disc, and the screw rod can be conveniently rotated through the rotating disc.

Preferably, the telescopic link is internally provided with a spring, and the spring can drive the fixture block to reset.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses when the workstation rises, can make the bottom plate no longer support the connecting rod, so the connecting rod can move down under the effect of gravity to make first contact and second contact, at this moment can make the battery for the electro-magnet circular telegram, then the electro-magnet circular telegram produces magnetic force and then adsorbs the fixture block through magnetic force, thereby it dies the door plant automatic locking to make the fixture block card go into the draw-in groove inside, thereby can prevent effectively that the staff from forgetting to close the door plant and lead to the unexpected emergence after opening the door plant and enter into the workstation upper end.

2. The utility model discloses can make third contact and fourth contact after the fixture block enters into the draw-in groove is inside to will make the battery supply power for the warning light, thereby make the warning light shine, this workman just can confirm that the door plant has closed when seeing the warning light and shines, otherwise then does not, thereby can prevent that the electro-magnet from damaging the accident that causes.

Drawings

FIG. 1 is a schematic view of the overall structure of a safety protection device for an aerial work platform of the present invention;

FIG. 2 is an enlarged view of the safety protection device for aerial work platform of the present invention at A in FIG. 1;

fig. 3 is an enlarged view of the position B in fig. 1 of the safety protection device for aerial work platform of the present invention.

In the figure: 1. a base plate; 2. a lifting mechanism; 3. a work table; 4. a guardrail; 5. a door panel; 6. a card slot; 7. an electromagnet; 8. a telescopic rod; 9. a clamping block; 10. a fixed frame; 11. a connecting rod; 12. a first contact; 13. a second contact; 14. a storage battery; 15. a third contact; 16. a fourth contact; 17. a warning light; 18. a universal wheel; 19. a fixed block; 20. a screw; 21. a support plate; 22. and (6) rotating the disc.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a safety protection device for an aerial work platform comprises a bottom plate 1, wherein a lifting mechanism 2 is fixedly arranged at the upper end of the bottom plate 1, a workbench 3 is arranged at the upper end of the lifting mechanism 2, a guardrail 4 is fixedly arranged at the upper end of the workbench 3, a door plate 5 is movably arranged in the middle of the guardrail 4 through a hinge, a clamping groove 6 is formed in the middle of the inner side of the door plate 5 at the left side, an electromagnet 7 is fixedly arranged in one side of the clamping groove 6 in the door plate 5 at the left side, an expansion link 8 is fixedly arranged in the middle of the inner side of the door plate 5 at the right side, a clamping block 9 is fixedly arranged at one end, close to the clamping groove 6, of the expansion link 8, a switch mechanism is fixedly arranged at one side of the workbench 3 and comprises a fixed frame 10, a connecting rod 11, a first contact 12 and a, the fixed first contact 12 that is provided with in one side that workstation 3 was kept away from to connecting rod 11, fixed frame 10 is inside to be provided with second contact 13 at the fixed first contact 12 lower extreme, the fixed battery 14 that is provided with in one side that fixed frame 10 was kept away from to bottom plate 1 upper end, battery 14 is through electric connection between first contact 12 and second contact 13 and the electro-magnet 7.

A third contact 15 is fixedly arranged on one side inside the clamping groove 6, a fourth contact 16 is fixedly arranged on one side of the clamping block 9 close to the third contact 15, a warning lamp 17 is fixedly arranged at the upper end of the door panel 5, the storage battery 14 is electrically connected with the warning lamp 17 through the third contact 15 and the fourth contact 16, and a worker can judge whether the door panel 5 is closed or not through the warning lamp 17, so that the safety of the device in use can be further improved, universal wheels 18 are movably arranged at four corners of the surface of the lower end of the bottom plate 1, the device can be moved conveniently through the universal wheels 18, a fixed block 19 is fixedly arranged on one side of the universal wheels 18 on the surface of the bottom plate 1, a screw rod 20 is movably arranged inside the fixed block 19 through threads, a supporting plate 21 is movably arranged at the lower end of the screw rod 20 through a bearing, and further stability can be provided for the device in use through, the upper end of the screw rod 20 is fixedly provided with a rotating disc 22, the screw rod 20 can be conveniently rotated through the rotating disc 22, a spring is arranged inside the telescopic rod 8, and the spring can drive the clamping block 9 to reset.

The working principle is as follows: when the device is used, the device can be moved to a target area through the universal wheel 18, then a worker can open the door panel 5 and enter the upper end of the workbench 3, then the worker can close the door panel 5, then the workbench 3 is lifted through the lifting mechanism 2, when the workbench 3 is lifted, the bottom plate 1 can not abut against the connecting rod 11, so that the connecting rod 11 can move downwards under the action of gravity, the first contact 12 is contacted with the second contact 13, at the moment, the storage battery 14 is electrified for the electromagnet 7, then the electromagnet 7 is electrified to generate magnetic force, then the clamping block 9 is adsorbed through the magnetic force, the clamping block 9 is clamped into the clamping groove 6, so that the door panel 5 is automatically locked, the accident caused by forgetting to close the door panel 5 after the door panel 5 is opened and enters the upper end of the workbench 3 can be effectively prevented, and the third contact 15 is contacted with the fourth contact 16 after the clamping block 9 enters the clamping groove 6, thereby will make battery 14 for warning light 17 power supply, thereby make warning light 17 light, this workman is seeing warning light 17 when lighting, just can confirm that door plant 5 has closed, otherwise then do not, thereby can prevent the accident that electro-magnet 7 damaged and caused, when the device uses finish workstation 3 and descend, after workstation 3 descends to the minimum, can make bottom plate 1 extrusion connecting rod 11 move up one end distance make first contact 12 and second contact 13 separation so can make electro-magnet 7 outage, then fixture block 9 can shift out from draw-in groove 6 under the drive effect of telescopic link 8 and spring, so can open door plant 5 again, it is exactly the utility model relates to a high altitude construction platform safety arrangement's theory of operation.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides an aerial working platform safety arrangement, includes bottom plate (1), its characterized in that: the lifting mechanism (2) is fixedly arranged at the upper end of the bottom plate (1), the workbench (3) is arranged at the upper end of the lifting mechanism (2), a guardrail (4) is fixedly arranged at the upper end of the workbench (3), a door plate (5) is movably arranged in the middle of the guardrail (4) through a hinge, a clamping groove (6) is formed in the middle of the inner side of the door plate (5) at the left side, an electromagnet (7) is fixedly arranged at one side of the clamping groove (6) in the door plate (5) at the left side, a telescopic rod (8) is fixedly arranged at the middle of the inner side of the door plate (5) at the right side, a clamping block (9) is fixedly arranged at one end, close to the clamping groove (6), of the telescopic rod (8), a switching mechanism is fixedly arranged at one side of the workbench (3), the switching mechanism comprises a fixed frame (10), a connecting rod, fixed frame (10) inside activity interlude is provided with connecting rod (11), one side that workstation (3) were kept away from in connecting rod (11) is fixed and is provided with first contact (12), fixed frame (10) inside is fixed at first contact (12) lower extreme and is provided with second contact (13), one side that fixed frame (10) were kept away from to bottom plate (1) upper end is fixed and is provided with battery (14), electric connection between battery (14) through first contact (12) and second contact (13) and electro-magnet (7).

2. The aerial work platform safety arrangement of claim 1, wherein: the door is characterized in that a third contact (15) is fixedly arranged on one side inside the clamping groove (6), a fourth contact (16) is fixedly arranged on one side, close to the third contact (15), of the clamping block (9), a warning lamp (17) is fixedly arranged on the upper end of the door plate (5), and the storage battery (14) is electrically connected with the warning lamp (17) through the third contact (15) and the fourth contact (16).

3. The aerial work platform safety arrangement of claim 1, wherein: the four corners of the lower end surface of the bottom plate (1) are respectively and movably provided with universal wheels (18).

4. The aerial work platform safety arrangement of claim 1, wherein: the bottom plate (1) surface is fixed on one side of universal wheel (18) and is provided with fixed block (19), screw rod (20) is movably arranged in fixed block (19) through the screw thread, the lower extreme of screw rod (20) is movably provided with backup pad (21) through the bearing.

5. The aerial work platform safety arrangement of claim 4, wherein: the upper end of the screw rod (20) is fixedly provided with a rotating disc (22).

6. The aerial work platform safety arrangement of claim 1, wherein: a spring is arranged in the telescopic rod (8).

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