Anti-falling mechanism suitable for elevator

Abstract

The utility model belongs to the technical field of elevator anti-falling, and particularly relates to an anti-falling mechanism suitable for an elevator, which comprises an elevator main body, a plurality of traction ropes are fixedly arranged at the top of the elevator main body, a fixed box is fixedly arranged at the top of the elevator main body, and an anti-falling protection box is fixedly arranged at the top of the fixed box. A winding roller is rotationally installed on the inner side of the anti-falling protection box, an anti-falling rope is fixedly installed on the outer side of the winding roller, one end of the anti-falling rope is fixedly installed at the top of the elevator shaft, limiting wheels are fixedly installed on the left side and the right side of the winding roller, and a second lead screw can drive a lifting limiting plate to abut against the limiting wheels in a threaded fit mode. A plurality of limiting grooves are formed in the upper portion of the lifting limiting plate and the upper portion of the limiting wheel, no matter how the limiting wheel rotates, the lifting limiting plate can lock the limiting wheel and the winding roller through the limiting grooves, the anti-falling rope cannot move after the winding roller is locked, and the anti-falling rope can apply anti-falling force to the elevator body.

Description

TECHNICAL FIELD

[0001] The utility model relates to elevator anti -fall technical field especially applicable to anti -fall mechanism for elevator. BACKGROUND

[0002] Modern elevator mainly comprises traction machine, guide rail, counterweight device, safety device, signal control system, car and hall door etc. These parts are respectively installed in the shaft of building and machine room. The present passenger elevator is intelligent and automatic equipment controlled by microcomputer, which does not need special personnel to operate, and ordinary passengers can ride and operate the elevator according to normal procedures.

[0003] The announcement number for CN 107324177 A discloses a kind of anti -fall mechanism suitable for elevator, including receiving platform, located in elevator shaft, and placed in the lower of elevator;Anti -fall column, fixedly installed in the lower end position of receiving platform;Supporting plate, located in elevator shaft, placed in the lower of receiving platform, supporting plate center hole is equipped on supporting plate, for providing space for anti -fall column, supporting plate is used to provide support;Accommodation box, fixedly installed in the lower of supporting plate;Viscous agent, placed in accommodation box;

[0004] When using, the existing device can only prevent the rebound of falling elevator by viscous agent and spring, but it is difficult to reduce the impact force of falling, and the larger impact force will still cause damage to the personnel in the elevator;Therefore we propose a kind of anti -fall mechanism suitable for elevator. Utility model content

[0005] The utility model is aimed at providing a kind of anti -fall mechanism suitable for elevator, solve the existing problem.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A kind of anti -fall mechanism suitable for elevator, including elevator main body, the top of the elevator main body is fixedly installed with multiple traction ropes, the top of the elevator main body is fixedly installed with fixed box, the top of the fixed box is fixedly installed with anti -fall protection box, the inner side of the anti -fall protection box is rotatably installed with winding roller, the outer side of the winding roller is fixedly installed with anti -fall rope, the top of the elevator shaft is fixedly installed at one end of the anti -fall rope, the left and right sides of the winding roller are fixedly installed with limit wheel.

[0008] As further improvement of the above scheme, the bottom inner wall of the fixed box is fixedly installed with motor, the output end of the motor is fixedly installed with driving shaft, the bottom inner wall of the fixed box is fixedly installed with multiple mounting plates, the inner side of the mounting plate is rotatably installed with first screw rod, the outer side of the first screw rod and driving shaft is fixedly installed with first bevel gear, adjacent first bevel gear is engaged.

[0009] As a further improvement of the above-mentioned scheme, the outer side of the first screw rod is provided with a sliding plate, one side of the sliding plate is fixedly provided with a limiting frame, and one side of the limiting frame is fixedly provided with a speed reduction anti-falling plate.

[0010] As a further improvement of the above-mentioned scheme, the outer side of the first screw rod is provided with a sliding plate, one side of the sliding plate is fixedly provided with a limiting frame, and one side of the limiting frame is fixedly provided with a speed reduction anti-falling plate.

[0011] As a further improvement of the above-mentioned scheme, the bottom inner wall of the anti-falling protection box is fixedly provided with a plurality of fixing blocks, the inner side of the fixing block is rotatably provided with an auxiliary shaft, the outer side of the auxiliary shaft and the driving shaft is fixedly provided with a second bevel gear, and adjacent second bevel gears are meshed.

[0012] As a further improvement of the above-mentioned scheme, the bottom inner wall of the anti-falling protection box is rotatably provided with two second screw rods, the outer side of the second screw rod and the auxiliary shaft is fixedly provided with a third bevel gear, adjacent third bevel gears are meshed, and the outer side of the second screw rod is provided with a lifting limiting plate.

[0013] As a further improvement of the above-mentioned scheme, the top of the lifting limiting plate is provided with a threaded hole, the second screw rod is meshed with the threaded hole, and the width of the lifting limiting plate is the same as the width of the anti-falling protection box.

[0014] As a further improvement of the above-mentioned scheme, the top of the lifting limiting plate and the outer side of the limiting wheel are provided with a plurality of limiting grooves, and adjacent limiting grooves are meshed.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] (1) The anti-falling mechanism suitable for the elevator can drive the lifting limiting plate and the limiting wheel to abut through the threaded cooperation of the second screw rod, a plurality of limiting grooves are arranged above the lifting limiting plate and the limiting wheel, the limiting wheel can be locked through the limiting groove regardless of the rotation of the lifting limiting plate, the anti-falling rope cannot move after being locked, and the anti-falling rope can provide an anti-falling force for the elevator body.

[0017] (2) The anti-falling mechanism suitable for the elevator can drive the sliding plate to slide through the threaded cooperation of the first screw rod after rotation, the limiting frame can limit the sliding plate, the sliding plate can drive the limiting frame and the speed reduction anti-falling plate to move after being stressed, the speed reduction anti-falling plate can abut the inner wall of the elevator shaft after moving, a plurality of rubber pads are arranged above the speed reduction anti-falling plate, the friction force between the speed reduction anti-falling plate and the elevator shaft can be increased, so that the falling speed of the elevator body is reduced, and the injury and death of the personnel in the elevator caused by high-speed falling can be prevented. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of an anti-fall mechanism for elevators proposed in this utility model;

[0020] Figure 2 This is a partial three-dimensional structural diagram of an anti-fall mechanism for elevators proposed in this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the explosion part of an anti-fall mechanism for elevators proposed in this utility model.

[0022] Figure 4 This is a side view of the three-dimensional structure of an anti-fall mechanism for elevators proposed in this utility model.

[0023] In the diagram: 1. Elevator body; 2. Traction rope; 3. Fixing box; 4. Fall protection box; 5. Winding roller; 6. Fall protection rope; 7. Limit wheel; 8. Motor; 9. Drive shaft; 10. Mounting plate; 11. First lead screw; 12. Sliding plate; 13. Limit frame; 14. Deceleration fall protection plate; 15. First bevel gear; 16. Fixing block; 17. Auxiliary shaft; 18. Second bevel gear; 19. Second lead screw; 20. Third bevel gear; 21. Lifting limit plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] refer to Figures 1-4The utility model relates to an anti -fall mechanism suitable for elevator, including elevator body 1, the top of elevator body 1 is fixedly installed with multiple traction ropes 2, the top of elevator body 1 is fixedly installed with fixed box 3, the top of fixed box 3 is fixedly installed with anti -fall protection box 4, the inner side of anti -fall protection box 4 is rotatably installed with winding roller 5, the outer side of winding roller 5 is fixedly installed with anti -fall rope 6, one end of anti -fall rope 6 is fixedly installed at the top of elevator shaft, the left and right sides of winding roller 5 are fixedly installed with limit wheel 7, the bottom inner wall of fixed box 3 is fixedly installed with motor 8 in the utility model, the output of motor 8 is fixedly installed with drive shaft 9, the bottom inner wall of fixed box 3 is fixedly installed with multiple mounting plates 10, the inner side of mounting plate 10 is rotatably installed with first lead screw 11, the outer side of first lead screw 11 and drive shaft 9 is fixedly installed with first bevel gear 15, and adjacent first bevel gear 15 engages, and drive shaft 9 can drive multiple first lead screws 11 to rotate through first bevel gear 15 after rotating, first lead screw 11 can drive sliding plate 12 to slide through thread cooperation after rotating, and limit frame 13 can limit sliding plate 12, so that sliding plate 12 can drive limit frame 13 and deceleration anti -fall plate 14 to move after being stressed.

[0026] The outer side of first lead screw 11 is threadedly installed with sliding plate 12 in the utility model, one side of sliding plate 12 is fixedly installed with limit frame 13, one side of limit frame 13 is fixedly installed with deceleration anti -fall plate 14, the utility model discloses that the outer side of fixed box 3 is provided with multiple limit sliding slots, limit frame 13 is slidably installed in the inner side of limit sliding slot, and rubber pad is fixedly installed on one side of deceleration anti -fall plate 14, deceleration anti -fall plate 14 can abut the inner wall of elevator shaft after moving, more rubber pads are arranged above deceleration anti -fall plate 14, can increase the friction force of deceleration anti -fall plate 14 and elevator shaft, so that the falling speed of elevator body 1 is reduced, and the injury and death of elevator internal personnel due to high -speed falling can be prevented, the bottom inner wall of anti -fall protection box 4 is fixedly installed with multiple fixed blocks 16 in the utility model, the inner side of fixed block 16 is rotatably installed with auxiliary shaft 17, second bevel gear 18 is fixedly installed on the outer side of auxiliary shaft 17 and drive shaft 9, and adjacent second bevel gear 18 engages.

[0027] Two second lead screws 19 are rotatably installed on the inner wall of the bottom of the anti-falling protection box 4, third bevel gears 20 are fixedly installed on the outer sides of the second lead screws 19 and the auxiliary shafts 17, adjacent third bevel gears 20 are engaged, and lifting limiting plates 21 are threadedly installed on the outer sides of the second lead screws 19.

[0028] In the embodiment, threaded holes are formed in the top of the lifting limiting plate 21, the second lead screw 19 is engaged with the threaded hole, and the width of the lifting limiting plate 21 is the same as the width of the anti-falling protection box 4; the width of the lifting limiting plate 21 being the same as the width of the anti-falling protection box 4 allows the lifting limiting plate 21 to slide after being stressed, but not to rotate on the inner side of the anti-falling protection box 4; in the embodiment, a plurality of limiting grooves are formed in the top of the lifting limiting plate 21 and the outer side of the limiting wheel 7, and adjacent limiting grooves are engaged; the second lead screw 19 threadedly drives the lifting limiting plate 21 to abut against the limiting wheel 7, a plurality of limiting grooves are formed above the lifting limiting plate 21 and the limiting wheel 7, and the lifting limiting plate 21 can lock the limiting wheel 7 and the winding roller 5 through the limiting grooves regardless of the rotation of the limiting wheel 7, the winding roller 5 cannot move after being locked, and the anti-falling rope 6 can provide an anti-falling force to the elevator body 1.

[0029] The implementation principle of the anti-falling mechanism suitable for the elevator in the embodiment of the application is as follows: the elevator main body 1 can be driven to ascend and descend by the traction rope 2, the anti-falling rope 6 above the winding roller 5 can be wound or unwound during the ascending and descending process, when an accident occurs to the elevator, the motor 8 can be controlled to drive the driving shaft 9 to rotate, the driving shaft 9 can drive the auxiliary shaft 17 on both sides to rotate through the second bevel gear 18, the auxiliary shaft 17 can drive the second screw rod 19 to rotate through the third bevel gear 20, the second screw rod 19 can drive the ascending and descending limiting plate 21 to abut against the limiting wheel 7 through thread cooperation, a plurality of limiting grooves are formed above the ascending and descending limiting plate 21 and the limiting wheel 7, no matter how the limiting wheel 7 rotates, the limiting wheel 7 and the winding roller 5 can be locked through the limiting grooves, the anti-falling rope 6 cannot move after being locked, the anti-falling rope 6 can provide an anti-falling force to the elevator main body 1, and the driving shaft 9 can drive a plurality of first screw rods 11 to rotate through the first bevel gear 15 after rotating, the first screw rods 11 can drive the sliding plate 12 to slide through thread cooperation after rotating, the limiting frame 13 can limit the sliding plate 12, the sliding plate 12 can drive the limiting frame 13 and the deceleration anti-falling plate 14 to move after being stressed, the deceleration anti-falling plate 14 can abut against the inner wall of the elevator shaft after moving, a plurality of rubber pads are arranged above the deceleration anti-falling plate 14, the friction force between the deceleration anti-falling plate 14 and the elevator shaft can be increased, so that the falling speed of the elevator main body 1 is reduced, and the situation that the people inside the elevator are injured or die due to high-speed falling can be prevented.

[0030] In the description of the present specification, the description referring to the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0031] The anti-falling mechanism suitable for the elevator is described in detail above. The principles and implementation manners of the present application are described by applying specific embodiments in the present paper, and the description of the above embodiments is only used to help understand the method and core idea of the present application. It should be pointed out that, for ordinary skilled persons in the technical field, some improvements and modifications can be made to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A fall-preventing mechanism for an elevator, characterized by Include: The top of the elevator body (1) is fixedly installed with a plurality of traction ropes (2), the top of the fixed box (3) is fixedly installed with a fixed box (3), the top of the fixed box (3) is fixedly installed with a fixed box (3), the inner side of the fixed box (3) is rotatably installed with a winding roller (5), the outer side of the winding roller (5) is fixedly installed with a falling rope (6), one end of the falling rope (6) is fixedly installed at the top of the elevator shaft, and the left and right sides of the winding roller (5) are fixedly installed with a limiting wheel (7).

2. The anti-falling mechanism for an elevator according to claim 1, wherein The bottom inner wall of the fixed box (3) is fixedly installed with a motor (8), the output end of the motor (8) is fixedly installed with a drive shaft (9), the bottom inner wall of the fixed box (3) is fixedly installed with a plurality of mounting plates (10), the inner side of the mounting plate (10) is rotatably installed with a first lead screw (11), and the outer sides of the first lead screw (11) and the drive shaft (9) are fixedly installed with first bevel gears (15), and adjacent first bevel gears (15) are engaged.

3. The fall-preventing mechanism for an elevator according to claim 2, wherein The outer side of the first lead screw (11) is threadedly installed with a sliding plate (12), one side of the sliding plate (12) is fixedly installed with a limiting frame (13), and one side of the limiting frame (13) is fixedly installed with a speed-reducing anti-falling plate (14).

4. The fall-preventing mechanism for an elevator according to claim 3, wherein The outer side of the fixed box (3) is provided with a plurality of limiting sliding grooves, the limiting frame (13) is slidingly installed on the inner side of the limiting sliding groove, and the speed-reducing anti-falling plate (14) is fixedly installed with a rubber pad on one side.

5. The anti-falling mechanism for an elevator according to claim 1, wherein The bottom inner wall of the fixed box (3) is fixedly installed with a plurality of fixed blocks (16), the inner side of the fixed block (16) is rotatably installed with an auxiliary shaft (17), the outer sides of the auxiliary shaft (17) and the drive shaft (9) are fixedly installed with second bevel gears (18), and adjacent second bevel gears (18) are engaged.

6. The anti-falling mechanism for an elevator according to claim 1, wherein The bottom inner wall of the fixed box (4) is rotatably installed with two second lead screws (19), the outer sides of the second lead screws (19) and the auxiliary shaft (17) are fixedly installed with third bevel gears (20), adjacent third bevel gears (20) are engaged, and the outer side of the second lead screw (19) is threadedly installed with a lifting limiting plate (21).

7. A fall-preventing mechanism for an elevator according to claim 6, characterized in that The top of the lifting limiting plate (21) is provided with a threaded hole, the second lead screw (19) is engaged with the threaded hole, and the width of the lifting limiting plate (21) is the same as the width of the anti-falling protection box (4).

8. The fall-prevention mechanism for an elevator according to claim 6, wherein A plurality of limiting grooves are formed on the top of the lifting limiting plate (21) and the outer side of the limiting wheel (7), and adjacent limiting grooves are engaged.

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