Elevator anti-falling safety device

Abstract

The utility model belongs to elevator technical field, concretely relates to an elevator anti -falling safety device, including car, the top end of protection box inside is provided with the top rod no.

Description

TECHNICAL FIELD

[0001] The utility model belongs to elevator technical field, concretely relates to a kind of elevator anti-falling safety device. BACKGROUND

[0002] Elevator is a vertical lift with motor power, for multistory building passenger or carry goods, realize personnel and goods transport between floor by running in vertical elevator shaft, elevator anti-falling device refers to the series of device installed in elevator system, for preventing elevator car from falling accident, these devices can start quickly and prevent car from falling when elevator fails and car has falling risk, to guarantee the life safety of passenger in car.

[0003] Problems of prior art exist:

[0004] Elevator is indispensable vertical transport tool in modern high-rise building, and its safety is crucial, although existing elevator system has been equipped with some safety devices, such as safety pawl, speed limiter etc., existing safety pawl usually uses high-speed centrifugal force to make brake caliper clamped on guide rail, but there may be interference to speed limiter sensing and triggering mechanism due to long-term non-use, leading to failure to prevent car from falling in time when elevator appears over-speed falling danger. Utility model content

[0005] The utility model aims at providing a kind of elevator anti-falling safety device, car can be slowed down by arc top block, top rod one, rotating rod, top rod two and slide rail when elevator fails, and top rod two fixes car by arc top block, to prevent car from moving down continuously, reduce security risk.

[0006] The technical scheme adopted by the utility model is as follows:

[0007] A kind of elevator anti-falling safety device, including car, the front and rear ends of the car are integrally fixedly installed with sliding slot, the inside of two sliding slots is slidably provided with slide rail, the both sides of the slide rail are integrally fixedly installed with arc top block at equal intervals, the both sides of the slide rail and located at the top and bottom ends of arc top block are fixedly installed with tooth one, the both sides of the bottom of car are fixedly installed with angle steel, the front and rear ends of two angle steels are fixedly installed with protection box;

[0008] The side of the top end of the front of the protection box is rotationally provided with gear three and gear two in sequence, the top end of the front of the protection box is rotationally provided with gear one on the side of gear two, the back of gear one is fixedly assembled with gear four, the top end of the inside of the protection box is slidingly provided with top rod one, the bottom end of the inside of the protection box is slidingly provided with top rod two, the top of top rod one is fixedly installed with tooth two, the side of the inside of the protection box is rotationally provided with rotating rod, the top and bottom ends of the rotating rod are rotationally provided at one end of top rod one and top rod two respectively, the side of top rod one is fixedly installed with top column, the inside of the protection box is rotationally provided with clamping plate near the top column, the top and bottom ends of the clamping plate are integrally fixedly installed with support plate, and the side of the support plate is fixedly installed with high-strength spring.

[0009] The bottom plate is commonly fixedly installed between the bottoms of the two angle steels, the shock absorbers are fixedly installed at the front and rear ends of the bottom plate, and the rubber pads are commonly fixedly installed between the bottoms of the four shock absorbers.

[0010] The gear three and the gear two are meshingly connected, the gear two and the gear one are meshingly connected, and the gear four and the tooth two are meshingly connected.

[0011] The opening end of the clamping plate is smaller than the outer diameter of the top column.

[0012] One end of the top rod one is designed in an arc shape near the arc-shaped top block, and one end of the top rod two is designed in a right angle near one end of the arc-shaped top block.

[0013] The technical effects achieved by the utility model are as follows:

[0014] When the car normally and uniformly lifts, the top rod one contacts and slightly extrudes the top rod one at the arc-shaped top block, at this time, the top column cannot open the clamping plate due to insufficient impact force, at this time, the top rod two does not contact the slide rail, when the elevator runs or suddenly breaks down at the floor, the elevator loses speed, at this time, the top rod one no longer uniformly passes through the arc-shaped top block, and the falling point position is more lower when passing through the arc-shaped top block, the impact force is stronger, the top column extrudes the clamping plate and the high-strength spring at the top and bottom ends and is clamped into the inside of the clamping plate, at this time, the top rod two extrudes the slide rail on both sides due to the rotating rod, the falling speed of the car is reduced, until the top of the top rod two contacts the bottom of the arc-shaped top block to fix the car, the safety of the elevator is improved, the problem that the existing safety clamp may be stuck and braking failure due to long-term non-use is avoided, the existing safety clamp cannot reach the opening speed due to the centrifugal force, and the safety hidden danger is further generated. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the shaft side schematic view provided by the embodiment of the utility model;

[0016] Figure 2 is a bottom view axial side schematic view provided by the embodiment of the utility model;

[0017] Figure 3 is the utility model's embodiment provides Figure 1 A place amplification schematic view in the middle;

[0018] Figure 4 is the utility model's embodiment provides protection box half-split axial schematic view.

[0019] In the drawing, the component list represented by each mark is as follows:

[0020] 1, car;2, sliding slot;3, slide rail;4, angle steel;5, bottom plate;6, shock absorber;7, rubber pad;8, protection box;9, gear one;10, gear two;11, gear three;12, arc top block;13, tooth one;14, gear four;15, top rod one;16, tooth two;17, rotating rod;18, top column;19, clamping plate;20, support plate;21, high-strength spring;22, top rod two. Specific implementation

[0021] In order to make the purpose and the advantage of the utility model more clearly, the following is specifically described with examples.The following text is only used to describe one or several specific embodiments of the utility model, and does not strictly limit the protection scope of the utility model specifically requested.

[0022] As Figures 1-4 Shown, an elevator anti-falling safety device, including car 1, the front and rear ends of car 1 are integrally fixedly installed with sliding slot 2, the inside of two sliding slots 2 is slidably provided with slide rail 3, the both sides of slide rail 3 are integrally fixedly installed with arc top block 12 at equal intervals, the both sides of slide rail 3 and located at the top and bottom ends of arc top block 12 are fixedly installed with tooth one 13, the both sides of car 1 bottom are fixedly installed with angle steel 4, the front and rear ends of two angle steels 4 are fixedly installed with protection box 8, the opening end of clamping plate 19 is less than the outer diameter of top column 18.

[0023] Refer to the attached Figure 3 and Figure 4The side of the top end of the front of the protection box 8 is sequentially provided with gear three 11 and gear two 10 in rotation, the top end of the front of the protection box 8 is provided with gear one 9 on the side of gear two 10 in rotation, the back of gear one 9 is fixedly assembled with gear four 14, the top end of the inside of the protection box 8 is provided with top rod one 15 in sliding, the bottom end of the inside of the protection box 8 is provided with top rod two 22 in sliding, the top of top rod one 15 is fixedly installed with tooth two 16, the inside of the protection box 8 is provided with rotating rod 17 in rotation, the top and bottom ends of rotating rod 17 are provided at one end of top rod one 15 and top rod two 22 in rotation respectively, the side of top rod one 15 is fixedly installed with top column 18, the inside of the protection box 8 is provided with clamping plate 19 in rotation near top column 18, the top and bottom ends of clamping plate 19 are integrally fixedly installed with support plate 20, the side of support plate 20 is fixedly installed with high-strength spring 21.

[0024] According to the above structure, when the car 1 is normally and uniformly lifted, top rod one 15 contacts and slightly extrudes top rod one 15 at arc-shaped top block 12, at this time, top column 18 cannot open clamping plate 19 due to insufficient impact force, at this time, top rod two 22 does not contact with slide rail 3, when the elevator is running or suddenly broken down at the floor, the elevator loses speed, at this time, top rod one 15 no longer uniformly passes through arc-shaped top block 12, and the falling point position is lower when passing through arc-shaped top block 12, the impact force is stronger, so that top column 18 extrudes the top and bottom ends of clamping plate 19 and high-strength spring 21 and is clamped into the inside of clamping plate 19, at this time, top rod two 22 contacts slide rail 3 due to rotating rod 17, so as to reduce the falling speed of car 1, until the top of top rod two 22 contacts the bottom of arc-shaped top block 12 to fix car 1, so as to improve the safety of the elevator, avoid the problems that the existing safety hook may be stuck and braking failure due to long-term non-use, at the same time, tooth one 13 and tooth two 16 assist top rod one 15, avoid the safety hidden danger that the existing safety hook cannot reach the opening speed due to the sudden breaking of the elevator at the low floor, tooth one 13 drives meshed gear three 11, gear two 10 and gear one 9 to rotate, so as to make gear four 14 rotate, so that top rod one 15 moves to the side of clamping plate 19, reduce the clamping time of top column 18 and clamping plate 19, improve the safety, tooth one 13 and arc-shaped top block 12 have a certain distance, when car 1 is uniformly lifted, gear three 11 rotates to a certain extent, top column 18 contacts the side of clamping plate 19, but will not be clamped into the inside of clamping plate 19, when top rod one 15 falls at the bottom of arc-shaped top block 12, the resilience of high-strength spring 21 makes gear three 11 rotate back.

[0025] Refer to the attached drawings Figure 2 and Figure 3The bottom of the two angle steels 4 is fixedly provided with a bottom plate 5, the front end and the rear end of the bottom plate 5 are fixedly provided with shock absorbers 6, the bottom of the four shock absorbers 6 is fixedly provided with a rubber pad 7, the gear three 11 is meshingly connected with the gear two 10, the gear two 10 is meshingly connected with the gear one 9, the gear four 14 is meshingly connected with the gear tooth two 16, one end of the top rod one 15 is designed as an arc shape and is close to the arc-shaped top block 12, and one end of the top rod two 22 is designed as a right angle and is close to one end of the arc-shaped top block 12.

[0026] According to the above structure, the stability of the protection box 8 is increased through the angle steel 4, the buffer is generated, the impact force is reduced, the harm to people is reduced, the fast braking ability of the top rod two 22 is enhanced, the situation that the existing safety clamp cannot be opened when the fault occurs at a low floor is avoided, the stability of the elevator is increased through the meshing of the gear tooth one 13 and the plurality of gear teeth and the clamping of the top rod two 22 and the bottom of the arc-shaped top block 12, the arc-shaped design of one end of the top rod one 15 facilitates the smooth passing of the top rod one 15 during lifting, and the direct design of the top rod two 22 facilitates the clamping of the straight edge of the arc-shaped top block 12 to fix the car 1.

[0027] When the car 1 normally and uniformly lifts, the top rod one 15 contacts and slightly extrudes the arc-shaped top block 12, at this time, the top column 18 cannot open the clamp plate 19 due to insufficient impact force, at this time, the top rod two 22 does not contact the slide rail 3, when the elevator runs or suddenly breaks down at a floor, the elevator loses speed, at this time, the top rod one 15 no longer uniformly passes through the arc-shaped top block 12, and the falling point position is lower when passing through the arc-shaped top block 12, the impact force is stronger, the top column 18 extrudes the clamp plate 19 and the high-strength spring 21 and is clamped into the inside of the clamp plate 19, at this time, the top rod two 22 contacts the slide rail 3 due to the contact of the rotating rod 17, the falling speed of the car 1 is reduced, until the top of the top rod two 22 contacts the bottom of the arc-shaped top block 12 to fix the car 1, the safety of the elevator is improved, the problems of jamming and braking failure of the existing safety clamp due to long-term non-use are avoided, the gear tooth one 13 and the gear tooth two 16 play a boosting role on the top rod one 15, the existing safety clamp cannot be opened due to the centrifugal speed, and the safety hidden danger is generated, the gear tooth one 13 drives the meshed gear three 11, the gear two 10 and the gear one 9 to rotate, the gear four 14 is rotated, the top rod one 15 moves to one side of the clamp plate 19, the clamping time of the top column 18 and the clamp plate 19 is reduced, and the safety is improved.

[0028] The above merely describes preferred embodiments of the present application, and it should be noted that, for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application. Structures, devices and operation methods not specifically described and explained in the present application are implemented according to conventional means in the art, unless otherwise specified and limited.

Claims

1. Elevator anti-falling safety device comprising a car (1), characterized in that: The front and rear ends of the car (1) are integrally fixedly installed with sliding grooves (2), the interiors of the two sliding grooves (2) are slidably provided with sliding rails (3), the two sides of the sliding rails (3) are integrally fixedly installed with arc-shaped top blocks (12) at equal intervals, the two sides of the sliding rails (3) and located at the top and bottom ends of the arc-shaped top blocks (12) are fixedly installed with tooth gears (13), and the two sides of the bottom of the car (1) are fixedly installed with angle steels (4). The front end of the protection box (8) is rotatably provided with a gear three (11) and a gear two (10) in sequence, the top end of the front face of the protection box (8) is rotatably provided with a gear one (9) on one side of the gear two (10), the back of the gear one (9) is fixedly assembled with a gear four (14), the top end of the interior of the protection box (8) is slidably provided with a top rod one (15), the bottom end of the interior of the protection box (8) is slidably provided with a top rod two (22), the top of the top rod one (15) is fixedly installed with a tooth gear two (16), one side of the interior of the protection box (8) is rotatably provided with a rotating rod (17), the top and bottom ends of the rotating rod (17) are rotatably provided at one end of the top rod one (15) and the top rod two (22) respectively, one side of the top rod one (15) is fixedly installed with a top column (18), the interior of the protection box (8) is rotatably provided with a clamping plate (19) close to the top column (18), the top and bottom ends of the clamping plate (19) are integrally fixedly installed with support plates (20), and one side of the support plates (20) is fixedly installed with high-strength springs (21).

2. An elevator anti-falling safety device according to claim 1, characterized in that: The bottom of the two angle steels (4) is fixedly installed with a bottom plate (5), the front and rear ends of the bottom plate (5) are fixedly installed with shock absorbers (6), and the bottoms of the four shock absorbers (6) are fixedly installed with rubber pad blocks (7).

3. An elevator anti-falling safety device according to claim 1, characterized in that: The gear three (11) and the gear two (10) are meshedly connected, the gear two (10) and the gear one (9) are meshedly connected, and the gear four (14) and the tooth gear two (16) are meshedly connected.

4. An elevator anti-falling safety device according to claim 1, characterized in that: The opening end of the clamping plate (19) is smaller than the outer diameter of the top column (18).

5. An elevator fall arrest safety device according to claim 1, wherein: One end of the top rod one (15) close to the arc-shaped top block (12) is designed in an arc shape, and one end of the top rod two (22) close to one end of the arc-shaped top block (12) is designed in a right angle.

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