Elevator with fall protection mechanism

Abstract

The application provides an elevator with a falling protection mechanism, which comprises an elevator body and a falling protection mechanism, wherein the falling protection mechanism comprises a brake device, an in-car buffer device, an out-car buffer device, a driving device and an acceleration sensor; the brake device is arranged on the left and right sides of the elevator body and used to contact and rub against the elevator shaft to reduce the falling speed of the elevator body; the in-car buffer device is arranged at the bottom end inside the elevator body and used to protect passengers in the car; the out-car buffer device is arranged at the lower end of the elevator body and used to protect the elevator body; the driving device is used to drive the brake device and the in-car buffer device to work; the acceleration sensor is in signal connection with the driving device and can detect abnormal changes in the acceleration of the elevator body to start the driving device to work; thus, when the elevator falls accidentally, the elevator can be prevented from falling in time, and the safety of the elevator body and passengers can be better protected.

Description

TECHNICAL FIELD

[0001] The application relates to the elevator technical field, in particular to an elevator with a falling protection mechanism. BACKGROUND

[0002] The elevator has become a necessary people lifting device for high-rise buildings in modern society, and the vertical elevator has a cage.

[0003] At present, the elevator has the advantages of reliable lifting, high conveying efficiency, accurate leveling and comfortable riding, however, there are still many elevator falling accidents, if the elevator is provided with a protection mechanism when the accident occurs, the loss can be greatly reduced and the safety of people's life and property can be saved.

[0004] In summary, how to provide an elevator with a falling protection mechanism, which can protect the safety of the elevator and the passengers in the elevator when the elevator accident occurs, is a technical problem to be solved by those skilled in the art. SUMMARY

[0005] The purpose of the application is to provide an elevator with a falling protection mechanism, which can timely prevent the elevator from falling and better protect the safety of the elevator body and passengers when the elevator accident occurs

[0006] The application is realized by the following technical scheme:

[0007] The elevator with a falling protection mechanism comprises an elevator body and a falling protection mechanism arranged on the elevator body, wherein the falling protection mechanism comprises a brake device, an in-cage buffer device, an out-of-cage buffer device, a driving device and an acceleration sensor.

[0008] The brake device is arranged on the left and right sides of the elevator body, and is used for contacting and rubbing with the elevator shaft to reduce the descending speed of the elevator body.

[0009] The in-cage buffer device is arranged at the bottom end inside the elevator body, and is used for protecting the passengers in the cage.

[0010] The out-of-cage buffer device is arranged at the lower end of the elevator body, and is used for buffering and protecting the elevator body.

[0011] The driving device is used for driving the brake device and the in-cage buffer device to work.

[0012] The acceleration sensor is signal connected with the driving device, and can detect the abnormal change of the acceleration of the elevator body to start the driving device to work.

[0013] The elevator with the falling protection mechanism as described above, the elevator body comprises a rectangular cabin formed by a plurality of side plates, and an upper cover plate and a bottom plate arranged at the upper and lower ends of the rectangular cabin, the in-cabin buffer device is arranged at the upper end of the bottom plate and located in the rectangular cabin, the out-cabin buffer device is arranged at the lower end of the bottom plate, and the brake device is arranged at the two sides of the rectangular cabin.

[0014] The elevator with the falling protection mechanism as described above, the in-cabin buffer device comprises a movable inner bottom plate and a first buffer assembly arranged between the inner bottom plate and the bottom plate, a rectangular flange is arranged on the inner side wall of the rectangular cabin, and the rectangular flange is used for guiding the up-and-down movement of the inner bottom plate and limiting the protrusion of the inner bottom plate above the upper side of the rectangular flange.

[0015] The elevator with the falling protection mechanism as described above, the driving device is provided with two groups, and the two groups of driving devices are symmetrically arranged on the bottom plate, wherein the driving device comprises a rotating shaft rotatably arranged on the bottom plate in the front-and-rear direction, eccentric wheels are arranged at the two ends of the rotating shaft, the eccentric wheels can push the inner bottom plate upward to abut against the rectangular flange, a secondary gear and a push plate are arranged on the rotating shaft, a servo motor is arranged on the bottom plate, and a main gear capable of meshing with the secondary gear is arranged on the output shaft of the servo motor.

[0016] The elevator with the falling protection mechanism as described above, the brake device is provided with two groups, and the two groups of brake devices are arranged at the left and right sides of the rectangular cabin, wherein the brake device comprises a first swing plate swingingly arranged outside the rectangular cabin, a brake plate for abutting against the inner wall of the elevator shaft is arranged at the upper end of the first swing plate, a vertical sliding groove is arranged at the lower end of the first swing plate, a second swing plate is swingingly arranged on the bottom plate, a guide column is arranged at one end of the second swing plate and extends to the outside of the rectangular cabin, the guide column is movably arranged in the vertical sliding groove, a first spring is connected between the other end of the second swing plate and the bottom plate, and the push plate can press the second swing plate downward, so that the guide column swings upward.

[0017] The elevator with the falling protection mechanism as described above, the out-cabin buffer device comprises an outer bottom plate and a second buffer assembly arranged between the outer bottom plate and the bottom plate.

[0018] The elevator with the falling protection mechanism as described above, the second buffer assembly comprises a plurality of second springs arranged between the outer bottom plate and the bottom plate.

[0019] The elevator with the falling protection mechanism as described above, a buffer protection member is arranged at the lower end of the outer bottom plate.

[0020] The elevator with the falling protection mechanism as described above, the buffer protection member is an air cushion.

[0021] The elevator with the falling protection mechanism as described above, the first buffer assembly includes a plurality of third springs arranged between the inner bottom plate and the bottom plate.

[0022] Compared with the prior art, the application has the following advantages: by arranging the brake device, the in-car buffer device, the out-car buffer device, the driving device and the acceleration sensor, when the elevator falls accidentally, the elevator can be prevented from falling in time, and the safety of the elevator body and passengers is better protected. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application.

[0025] Figure 2 It is a schematic diagram of the partial sectional structure of the present application.

[0026] Figure 3 It is a schematic diagram of the partial structure of the present application.

[0027] Figure 4 It is a schematic diagram of the state of the driving device of the present application when it is not working.

[0028] Figure 5 It is a schematic diagram of the state of the driving device of the present application when it is working. DETAILED DESCRIPTION

[0029] In order to make the technical problems, technical solutions and beneficial effects of the present application more clear, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0030] As shown in Figures 1 to 5 The present application provides an elevator with a falling protection mechanism, which comprises an elevator body 1, and a falling protection mechanism arranged on the elevator body 1, wherein the falling protection mechanism comprises a brake device 2, an in-car buffer device 3, an out-car buffer device 4, a driving device and an acceleration sensor 5.

[0031] The brake device 2 is arranged on the left and right sides of the elevator body 1, and is used to contact and rub with the elevator shaft to reduce the descending speed of the elevator body 1.

[0032] The in-car buffer device 3 is arranged at the bottom end of the elevator body 1, and is used for protecting passengers in the car;

[0033] The out-car buffer device 4 is arranged at the lower end of the elevator body 1, and is used for buffering and protecting the elevator body 1;

[0034] The driving device is used for driving the brake device 2 and the in-car buffer device 3 to work;

[0035] The acceleration sensor 5 is in signal connection with the driving device, and can detect abnormal acceleration change of the elevator body 1, so as to start the driving device to work.

[0036] When the elevator body 1 falls, the acceleration sensor 5 detects abnormal speed of the elevator body 1, and starts the driving device to work, the driving device drives the brake device 2 and the in-car buffer device 3 to work respectively, the elevator shaft contacts and rubs, so as to reduce the falling speed of the elevator body 1, and stop the elevator body 1; if the elevator body 1 cannot be stopped, the in-car buffer device 3 and the out-car buffer device 4 can be buffered, so as to reduce the impact force suffered by the elevator body 1 to the maximum, effectively reduce the probability of passengers in the elevator suffering serious injuries, and improve the safety of the elevator car operation.

[0037] Further, the elevator body 1 comprises a rectangular car body 21 surrounded by a plurality of side plates, and an upper cover plate 22 and a bottom plate 23 arranged at the upper and lower ends of the rectangular car body 21, the in-car buffer device 3 is arranged at the upper end of the bottom plate 23 and located in the rectangular car body 21, the out-car buffer device 4 is arranged at the lower end of the bottom plate 23, and the brake device 2 is arranged at the two sides of the rectangular car body 21.

[0038] In the embodiment, the in-car buffer device 3 comprises a movable inner bottom plate 31 and a first buffer assembly arranged between the inner bottom plate 31 and the bottom plate 23, a rectangular flange 32 is arranged on the inner side wall of the rectangular car body 21, the rectangular flange 32 is used for guiding the inner bottom plate 31 to move up and down, and can limit the inner bottom plate 31 from protruding above the rectangular flange 32.

[0039] The driving device is provided with two groups, and the two groups of driving devices are symmetrically arranged on the bottom plate 23, wherein the driving device comprises a rotating shaft 41 rotatably arranged on the bottom plate 23 in the front-rear direction, eccentric wheels 42 are arranged at the two ends of the rotating shaft 41 respectively, the eccentric wheels 42 can push the inner bottom plate 31 upward to abut against the rectangular flange 32, secondary gears 43 and push plates 44 are arranged on the rotating shaft 41 respectively, a servo motor 45 is arranged on the bottom plate 23, and a main gear 46 capable of meshing with the secondary gears 43 is arranged on the output shaft of the servo motor 45.

[0040] The brake device 2 is provided with two groups, and the two groups of brake devices are arranged on the left and right sides of the rectangular compartment 21, wherein the brake device 2 comprises a first swing plate 51 swingingly arranged outside the rectangular compartment 21, an upper end of the first swing plate 51 is provided with a brake plate 52 for abutting against the inner wall of the elevator shaft, a lower end of the first swing plate 51 is provided with a vertical sliding groove 53, a second swing plate 54 is swingingly arranged on the bottom plate 23, one end of the second swing plate 54 extends to the outside of the rectangular compartment 21 and is provided with a guide column 55, the guide column 55 is movably arranged in the vertical sliding groove 53, the other end of the second swing plate 54 is connected with the bottom plate 23 through a first spring 56, and the push plate 44 can press downward the second swing plate 54, so that the guide column 55 swings upward.

[0041] The working principles of the above-mentioned in-compartment buffering device 3, brake device 2 and driving device are as follows:

[0042] When in normal condition, the protruding part of the eccentric wheel 42 abuts against the lower end of the inner bottom plate 31, and the inner bottom plate 31 abuts against the rectangular flange 32, so that the inner bottom plate 31 remains stationary, and the inner bottom plate 31 is used for passengers to stand on, meanwhile, the brake plate 52 of the first swing plate 51 does not swing outward and does not contact the elevator shaft, and the elevator body 1 operates normally; when an accident occurs, the servo motor 45 works, the main gear 46 meshes with the secondary gear 43, the rotating shaft 41 is driven to rotate, the eccentric wheel 42 and the push plate 44 swing to one side, so that the inner bottom plate 31 has a space to move downward, and the inner bottom plate 31 has a buffering effect through the action of the first buffering assembly, which protects the safety of passengers to a certain extent, in addition, the push plate 44 presses downward the second swing plate 54, and the first swing plate 51 and the brake plate 52 swing outward to abut against the elevator shaft through the action of the guide column 55 and the vertical sliding groove 53, so as to realize the function of brake, and the elevator body 1 can be stopped in time or the descending speed of the elevator body 1 can be reduced.

[0043] The first buffering assembly comprises a plurality of third springs 91 arranged between the inner bottom plate 31 and the bottom plate 23.

[0044] In the embodiment, the out-compartment buffering device 4 comprises an outer bottom plate 61 and a second buffering assembly arranged between the outer bottom plate 61 and the bottom plate 23.

[0045] Further, the second buffering assembly comprises a plurality of second springs 71 arranged between the outer bottom plate 61 and the bottom plate 23.

[0046] Still further, a buffering protection piece 81 is arranged at the lower end of the outer bottom plate 61.

[0047] The buffering protection piece 81 is an air cushion.

[0048] When the elevator body 1 and the weight of the passengers are too heavy to stop the elevator body 1, the impact force on the elevator body 1 can be reduced to the maximum by the action of the outer bottom plate 61, the second spring 71 and the air cushion, the probability of serious injury of the passengers in the elevator can be effectively reduced, and the safety of the elevator car operation is improved.

[0049] It should be understood that the terms "first", "second", etc. are used in this application to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, the "first" information can also be referred to as "second" information without departing from the scope of the application, and similarly, the "second" information can also be referred to as "first" information. In addition, the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only used to facilitate the description of the application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0050] The above is one or more embodiments provided in conjunction with specific content, and does not mean that the specific implementation of the application is limited to these descriptions. Any approximation, similarity or replacement of the method and structure of the application, or any technical deduction or replacement made on the basis of the concept of the application should be regarded as the protection scope of the application.

Claims

1. Elevator with a fall protection mechanism, comprising an elevator body (1), characterized in that: Further comprising a falling protection mechanism arranged on the elevator body (1), wherein the falling protection mechanism comprises a brake device (2), an in-car buffer device (3), an out-car buffer device (4), a driving device and an acceleration sensor (5); The brake device (2) is arranged on the left and right sides of the elevator body (1) and is used to contact and rub with the elevator shaft to reduce the descending speed of the elevator body (1); The in-car buffer device (3) is arranged at the bottom end inside the elevator body (1) and is used to protect the passengers in the car; The out-car buffer device (4) is arranged at the lower end of the elevator body (1) and is used to buffer and protect the elevator body (1); The driving device is used to drive the brake device (2) and the in-car buffer device (3) to work; The acceleration sensor (5) is signal connected with the driving device and can detect the abnormal change of the acceleration of the elevator body (1) to start the driving device to work; The driving device is provided with two groups, and the two groups of driving devices are symmetrically arranged on the bottom plate (23), wherein the driving device comprises a rotating shaft (41) rotatably arranged on the bottom plate (23) in the front-rear direction, an eccentric wheel (42) arranged at each end of the rotating shaft (41), the eccentric wheel (42) can push the inner bottom plate (31) upward to abut against the rectangular flange (32), a secondary gear (43) and a push plate (44) are further arranged on the rotating shaft (41), and a servo motor (45) is further arranged on the bottom plate (23), and a main gear (46) capable of meshing with the secondary gear (43) is arranged on the output shaft of the servo motor (45); The brake device (2) is provided with two groups, and the two groups of brake devices are arranged on the left and right sides of the rectangular car body (21), wherein the brake device (2) comprises a first swing plate (51) swingingly arranged outside the rectangular car body (21), the upper end of the first swing plate (51) is provided with a brake plate (52) used to abut against the inner wall of the elevator shaft, a vertical sliding groove (53) is arranged at the lower end of the first swing plate (51), a second swing plate (54) is swingingly arranged on the bottom plate (23), a guide column (55) is arranged at one end of the second swing plate (54) and extends to the outside of the rectangular car body (21), the guide column (55) is movably arranged in the vertical sliding groove (53), a first spring (56) is connected between the other end of the second swing plate (54) and the bottom plate (23), and the push plate (44) can press downward the second swing plate (54) to swing the guide column (55) upward.

2. The elevator with a fall protection mechanism according to claim 1, characterized in that: The elevator body (1) comprises a rectangular car body (21) surrounded by a plurality of side plates, an upper cover plate (22) and a bottom plate (23) arranged at the upper and lower ends of the rectangular car body (21), the in-car buffer device (3) is arranged at the upper end of the bottom plate (23) and located in the rectangular car body (21), the out-car buffer device (4) is arranged at the lower end of the bottom plate (23), and the brake device (2) is arranged on the two sides of the rectangular car body (21).

3. The elevator with a fall protection mechanism according to claim 2, characterized in that: The compartment inner buffering device (3) comprises a movable inner bottom plate (31) and a first buffering assembly arranged between the inner bottom plate (31) and the bottom plate (23). A rectangular flange (32) is arranged on the inner side wall of the rectangular compartment (21), which is used for guiding the up-and-down movement of the inner bottom plate (31) and limiting the protrusion of the inner bottom plate (31) above the rectangular flange (32).

4. The elevator having a fall protection mechanism according to claim 1, characterized in that: The compartment outer buffering device (4) comprises an outer bottom plate (61) and a second buffering assembly arranged between the outer bottom plate (61) and the bottom plate (23).

5. The elevator with a fall protection mechanism according to claim 4, characterized in that: The second buffering assembly comprises a plurality of second springs (71) arranged between the outer bottom plate (61) and the bottom plate (23).

6. The elevator with a fall protection mechanism according to claim 5, characterized in that: A buffering protection member (81) is arranged at the lower end of the outer bottom plate (61).

7. The elevator with a fall protection mechanism according to claim 6, characterized in that: The buffering protection member (81) is an air cushion.

8. The elevator having a fall protection mechanism according to claim 3, characterized in that: The first buffering assembly comprises a plurality of third springs (91) arranged between the inner bottom plate (31) and the bottom plate (23).

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