CN218202075U - Anti-falling device for elevator - Google Patents

Abstract

The utility model discloses a lift technical field's an anti-falling device for lift, including the lift base, the lower surface four corners department of lift base is equipped with removes the wheel, and the top of lift base is equipped with elevation structure, elevation structure's top is installed the lift mesa, the upper surface both sides of lift mesa are installed and are prevented the backplate, the rear side of preventing falling the medial surface left side of backplate is equipped with PLC controller, audible-visual annunciator and apart from the inductor respectively, the rear side it installs two sets of fixed plates, adjacent to prevent the medial surface right side of the backplate of preventing falling rotate between the fixed plate and be connected with the roll roller, and be equipped with the safety rope on the roll roller, the bottom of safety rope is connected with safety buckle, left side the lateral surface of fixed plate is equipped with the box, and is equipped with locking mechanism in the box, the utility model discloses a lift machines are equipped with the function of preventing falling, can prevent that the staff from stepping on the sky and falling, have improved the safety in utilization of lift.

Description

Anti-falling device for elevator

Technical Field

The utility model relates to an elevator technical field specifically is an anti-falling device for elevator.

Background

The lifter is mechanical equipment capable of lifting, can lift goods or workers at the bottom to perform high-altitude operation, and greatly improves the working efficiency. However, the lifting operation platform of the elevator is not provided with the anti-falling device, when workers work on the lifting platform, the situation of stepping empty can occur carelessly, the workers can fall off, casualties are caused, and the elevator is not safe enough to use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a falling protector for lift to there is not falling protector's problem on the lift that proposes in solving above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a falling prevention device for lift, includes the lift base, the lower surface four corners department of lift base is equipped with removes the wheel, and the top of lift base is equipped with elevation structure, elevation table face is installed at elevation structure's top, the backplate of preventing falling is installed to elevation table face's upper surface both sides, the rear side the medial surface left side of the backplate of preventing falling is equipped with PLC controller, audible-visual annunciator and apart from the inductor respectively, the rear side two sets of fixed plates are installed on the medial surface right side of the backplate of preventing falling, and are adjacent it is connected with the roll roller to rotate between the fixed plate, and is equipped with the safety rope on the roll roller, the bottom of safety rope is connected with safe knot, left side the lateral surface of fixed plate is equipped with the box, and is equipped with locking mechanism in the box, the electric property end electric connection PLC controller's of distance inductor and audible-visual annunciator electric property end.

Further: locking mechanism includes two sets of electric telescopic handle, and two sets of electric telescopic handle's bottom is connected with the dog, electric telescopic handle's electrical property end electric connection PLC controller's electrical property end.

Further: the rolling roller is characterized in that a rotating rod is installed on the left side face of the rolling roller, the bottom of the rotating rod is located in an inner cavity of the box body, and a polygonal rotating block is installed at the bottom of the rotating rod.

And further: the right side surface of the rolling roller is connected with the fixed plate through a rotating shaft, and a hand wheel is arranged on the outer side of the rotating shaft.

And further: the middle part of the bottom end of the inner cavity of the elevator base is provided with a notch, the top of the notch is provided with an electric push rod, and the bottom of the electric push rod is connected with a supporting base plate.

And further: and an anti-slip pad is laid on the upper surface of the lifting table board.

And further: the lower surface of the supporting base plate is provided with a damping pad.

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

the utility model provides primary protection through two groups of anti-falling guard plates on the lifting table surface, a worker plays a role in anti-falling through the connection of a safety rope and a safety buckle, a rolling roller can rotate when the worker walks, the distance sensor carries out real-time detection on the anti-falling safety distance of the worker, when the safety distance is close to a set value, the distance sensor gives a signal to a PLC (programmable logic controller), the PLC controller enables two groups of electric telescopic rods to move towards opposite directions, a stop block can be driven to stop at the outer wall of a polygonal rotating block, the clamping of the rolling roller is realized, the rolling roller does not rotate any more, the worker can not walk, and the anti-falling effect is played; when the sensing distance is close to the set value, the PLC controller gives the signal to the audible and visual alarm, and the audible and visual alarm gives out sound and light to warn the staff, so that the staff is prevented from falling, and the use safety is high.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of the lifting table of the present invention;

fig. 3 is an enlarged schematic view of a point a in fig. 2 according to the present invention.

In the figure: 1. an elevator base; 2. a moving wheel; 3. a notch; 4. an electric push rod; 5. a support pad; 6. a lifting structure; 7. lifting the table top; 8. a fall protection plate; 9. a PLC controller; 10. an audible and visual alarm; 11. a distance sensor; 12. a fixing plate; 13. a rolling roller; 14. a safety cord; 15. a safety buckle; 16. a hand wheel; 17. a rotating rod; 18. a box body; 19. an electric telescopic rod; 20. a stopper; 21. and a polygonal rotating block.

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.

Example 1:

referring to fig. 1-3, the present invention provides a technical solution: a falling-preventing device for a lift comprises a lift base 1, wherein four corners of the lower surface of the lift base 1 are provided with moving wheels 2, the top of the lift base 1 is provided with a lifting structure 6, the top of the lifting structure 6 is provided with a lifting table top 7, two sides of the upper surface of the lifting table top 7 are provided with falling-preventing guard plates 8, the lifting structure 6 is the prior art, the lifting of the lifting table top 7 is adjusted by using the work of the lifting structure 6, the working principle is not explained here, for example, the publication No. CN210655726U provides a falling-preventing device for a lift, wherein the lifting structure 6 is used for lifting;

the left side of the inner side face of the rear anti-falling protection plate 8 is respectively provided with a PLC (programmable logic controller) 9, an audible and visual alarm 10 and a distance sensor 11, the right side of the inner side face of the rear anti-falling protection plate 8 is provided with two groups of fixing plates 12, a rolling roller 13 is rotatably connected between every two adjacent fixing plates 12, the rolling roller 13 is provided with a safety rope 14, the bottom of the safety rope 14 is connected with a safety buckle 15, the outer side face of the left fixing plate 12 is provided with a box body 18, a locking mechanism is arranged in the box body 18, the electric ends of the distance sensor 11 and the audible and visual alarm 10 are electrically connected with the electric end of the PLC 9, before the elevator is used, the electric ends of electric equipment are electrically connected with the storage battery pack and the PLC 9 in the elevator base 1, the worker is connected with the body binding belt through the safety buckle 15, when the worker moves on the lifting table board 7 to work, the safety rope 14 can drive the rolling roller 13 to rotate, the distance sensor 11 can detect the falling-prevention safety distance of the worker in real time, when the safety distance is close to a set value, the distance sensor 11 sends signals to the PLC 9, the PLC 9 enables the two groups of electric telescopic rods 19 in the box body 18 to move towards opposite directions, namely, the two groups of stop blocks 20 can be driven to stop at the outer wall of the polygonal rotating block 21, so that the clamping of the rolling roller 13 is realized, the rolling roller 13 does not rotate any more, the worker cannot walk, and the falling-prevention effect is achieved; when the sensing distance is close to the set value, the PLC controller 9 gives a signal to the audible and visual alarm 10, the audible and visual alarm 10 gives out sound and light to warn the worker, the worker is prevented from falling, and the use safety is high.

Wherein, preferably, locking mechanism includes two sets of electric telescopic handle 19, and the bottom of two sets of electric telescopic handle 19 is connected with dog 20, electric telescopic handle 19's electric end electric connection PLC controller 9's electric end, bull stick 17 is installed to the left surface of roll roller 13, and the bottom of bull stick 17 is located the 18 inner chambers of box, the bottom fixedly connected with polygon turning block 21 of bull stick 17, when staff's walking distance is safe distance, dog 20 does not keep off the outer wall at polygon turning block 21, roll roller 13 can take place to rotate, because polygon turning block 21 has a plurality of limits, two sets of electric telescopic handle 19 work removes certain distance to the relative direction, dog 20 can play the fixed action to polygon turning block 21 position.

Preferably, the right side surface of the rolling roller 13 is connected with the fixing plate 12 through a rotating shaft, and a hand wheel 16 is arranged on the outer side of the rotating shaft, after the operation is completed, the hand wheel 16 is rotated to drive the rolling roller 13 to rotate, and the safety rope 14 on the rolling roller 13 is retracted.

Preferably, the middle part of the bottom end of the inner cavity of the elevator base 1 is provided with the notch 3, the top of the notch 3 is provided with the electric push rod 4, the bottom of the electric push rod 4 is connected with the supporting base plate 5, the PLC 9 can control the electric push rod 4 to work, the supporting base plate 5 can be driven to move downwards and be attached to the working ground, the friction force between the supporting base plate 5 and the ground is increased, and the stability of the elevator in working is improved.

Example 2:

referring to fig. 1, this embodiment is different from the first embodiment in that: the anti-slip mat is laid on the upper surface of the lifting table board 7, has an anti-slip effect, and avoids workers from slipping and falling down at working feet.

The lower surface of the supporting base plate 5 is provided with a damping pad, and the damping pad can further increase the friction force with the working ground, so that the stability of the elevator in working is further improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various 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 (7)

1. The utility model provides an anti-falling device for lift, includes lift base (1), its characterized in that: the utility model discloses a safety protection device for elevator, including lift base (1), lift mesa (7) are installed at the top of lift base (1), and the top of lift base (1) is equipped with elevation structure (6), elevation mesa (7) are installed at the top of elevation structure (6), the upper surface both sides of lift mesa (7) are installed and are prevented falling backplate (8), the rear side the medial surface left side of preventing falling backplate (8) is equipped with PLC controller (9), audible-visual annunciator (10) and apart from inductor (11) respectively, the rear side two sets of fixed plates (12) are installed on the medial surface right side of preventing falling backplate (8), and are adjacent it is connected with roll roller (13) to rotate between fixed plate (12), and is equipped with safety rope (14) on roll roller (13), the bottom of safety rope (14) is connected with safe knot (15), left side the lateral surface of fixed plate (12) is equipped with box (18), and is equipped with locking mechanism in box (18), apart from the electric property end electric connection PLC controller (9) of inductor (11) and audible-visual annunciator (10).

2. A fall arrest device for elevators according to claim 1, characterized in that: the locking mechanism comprises two groups of electric telescopic rods (19), the bottoms of the electric telescopic rods (19) are connected with check blocks (20), and the electric ends of the electric telescopic rods (19) are electrically connected with the electric ends of the PLC (9).

3. A fall arrest device for elevators according to claim 1, characterized in that: the rolling device is characterized in that a rotating rod (17) is installed on the left side face of the rolling roller (13), the bottom of the rotating rod (17) is located in an inner cavity of the box body (18), and a polygonal rotating block (21) is installed at the bottom of the rotating rod (17).

4. A fall arrest device for elevators according to claim 1, characterised in that: the right side surface of the rolling roller (13) is connected with the fixed plate (12) through a rotating shaft, and a hand wheel (16) is arranged on the outer side of the rotating shaft.

5. A fall arrest device for elevators according to claim 1, characterized in that: notch (3) have been seted up at the inner chamber bottom middle part of lift base (1), and the top of notch (3) is equipped with electric putter (4), the bottom of electric putter (4) is connected with supporting backing plate (5).

6. A fall arrest device for elevators according to claim 1, characterized in that: and an anti-slip pad is laid on the upper surface of the lifting table top (7).

7. A fall arrest device for elevators according to claim 5, characterized in that: the lower surface of the supporting base plate (5) is provided with a damping pad.

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