阅读说明：本技术 一种电梯遇险锁死装置 (Elevator distress locking device ) 是由 王君 于 2019-11-11 设计创作，主要内容包括：本发明公开了一种电梯遇险锁死装置,包括墙体,其特征在于：所述墙体内设有动力室,所述动力室下侧设有电梯井,所述电梯井左右两端壁对称固定设有导轨,所述导轨内等间距的设有多个下坠锁死机构,所述电梯井内设有轿厢,所述轿厢左右两侧对称固定有滑块,所述滑块与所述导轨滑动配合连接,所述轿厢内部设有乘客腔,所述轿厢内部设有位于所述乘客腔下方的下坠感应机构,可以通过机械结构感应到下坠并通过机械传动使下坠锁死机构完成对电梯的制动,所述轿厢内部还设有位于所述乘客腔上方的晃动锁死机构构,可以通过机械结构感应到摇晃并通过机械传动完成对电梯制动。(The invention discloses an elevator danger locking device, which comprises a wall body and is characterized in that: be equipped with the power house in the wall body, the power house downside is equipped with the elevartor shaft, both ends wall symmetry is fixed and is equipped with the guide rail about the elevartor shaft, equidistant a plurality of tenesmus locking mechanism that are equipped with in the guide rail, be equipped with the car in the elevartor shaft, car left and right sides symmetry is fixed with the slider, the slider with guide rail sliding fit connects, the inside passenger chamber that is equipped with of car, the inside position that is equipped with of car the tenesmus response mechanism of passenger chamber below can sense the tenesmus and make the tenesmus locking mechanism accomplish the braking to the elevator through mechanical transmission through mechanical structure, the inside position that still is equipped with of car the locking mechanism that rocks of passenger chamber top can sense through mechanical structure and rock and accomplish the braking to the elevator through mechanical transmission.)

1. The utility model provides an elevator distress locking device, includes the wall body, its characterized in that: the elevator car is characterized in that a power chamber is arranged in the wall body, an elevator shaft is arranged at the lower side of the power chamber, guide rails are symmetrically and fixedly arranged on the left end wall and the right end wall of the elevator shaft, a plurality of falling locking mechanisms are arranged in the guide rails at equal intervals, a slider connecting cavity which is opened towards the inner side is arranged in the guide rails, the slider connecting cavity penetrates through the guide rails up and down, a slider cavity is communicated and arranged on the outer side of the slider connecting cavity, a trigger cavity is communicated and arranged on the outer side of the slider cavity, the slider cavity and the trigger cavity are the same and penetrate through the guide rails up and down, a car is arranged in the elevator shaft, sliders are symmetrically and fixedly arranged on the left side and the right side of the car, the sliders are connected with the guide rails in a sliding fit manner, a passenger cavity is arranged in the car, the elevator car traction device is characterized in that a traction motor is fixed on the left wall of the power chamber, a traction shaft with the left end fixedly connected with the traction motor is arranged in the power chamber, traction wheels are symmetrically fixed on the left and right of the traction shaft, steel wire ropes are arranged on the traction wheels in a power fit mode, one end of each steel wire rope is fixed with the car, and a balance weight is fixed at the other end of each steel wire rope.

2. The elevator distress deadlocking apparatus of claim, wherein: the falling induction mechanism comprises a pressing plate cavity, a pressing plate, a falling compression spring, a first trigger pull rope, a falling spring cavity, a trigger block, a trigger compression spring, a trigger block cavity and a second trigger pull rope, wherein the pressing plate cavity is positioned at the lower side of the passenger cavity, the falling spring cavity is positioned at the lower side of the pressing plate cavity and is communicated with the pressing plate cavity, the pressing plate is connected with the pressing plate cavity in a sliding fit manner, one end of the falling compression spring is fixed with the bottom surface of the pressing plate, the other end of the falling compression spring is fixed with the bottom surface of the falling spring cavity, the bottom surface of the pressing plate is also fixed with the first trigger pull rope, the trigger block cavity is positioned at the tail end of the bottom of the sliding block and is opened outwards, the trigger block is connected with the trigger block cavity in a sliding fit manner, one end of the trigger compression spring is fixed with the trigger block, the other end of the trigger compression spring is fixed with the, the other end is fixedly connected with the first trigger pull rope.

3. The elevator distress deadlocking apparatus of claim, wherein: the falling locking mechanism comprises a push block cavity, the push block cavity is positioned outside the trigger cavity and is communicated with the trigger cavity, the push block cavity is communicated with the outer side of the link cavity and is provided with a link cavity, the rear wall of the link cavity is provided with a first rotating shaft in a rotating fit manner, a first belt wheel is fixed on the first rotating shaft, the front side of the first belt wheel is provided with a rotating disc fixedly connected with the first rotating shaft, the front end surface of the rotating disc is fixedly provided with a round pin, the push block cavity is internally provided with a push block in a sliding fit manner, the outer side surface of the push block is hinged with a connecting rod, the outer side end of the connecting rod is connected with the round pin in a rotating fit manner, the outer side surface of the link cavity is fixedly provided with a push block compression spring, the other end of the push block compression spring is fixedly connected with the round pin, the lower side of the link cavity is provided with a bevel gear cavity, the front end surface of the, the second band pulley with power fit has driving belt between the first band pulley, the second band pulley rear side be equipped with second pivot fixed connection's first bevel gear, bevel gear intracavity side be equipped with the prevent weighing down the board chamber of slider chamber intercommunication, prevent weighing down the board chamber and lean on medial surface normal running fit to be equipped with the third pivot, the third pivot extends to left the bevel gear intracavity, the bevel gear intracavity be equipped with third pivot fixed connection's second bevel gear, the second bevel gear with first bevel gear meshing, prevent weighing down the board intracavity be equipped with prevent weighing down board fixed connection's prevent weighing down the board, prevent weighing down board chamber rear end face bottom side end and be equipped with.

4. The elevator distress deadlocking apparatus of claim, wherein: the shaking locking mechanism comprises a shaking locking dead cavity, the shaking locking dead cavity is positioned in the car and positioned on the upper side of the passenger cavity, the left side of the shaking locking dead cavity is provided with a front-back shaking cavity, the right side of the shaking locking dead cavity is provided with a left-right shaking cavity, the right end surface of the shaking locking dead cavity is in running fit with a fourth rotating shaft, a ratchet wheel is fixed on the fourth rotating shaft, the left side of the ratchet wheel is provided with a weaving wheel fixedly connected with the fourth rotating shaft, a spiral spring is fixed between the left end of the fourth rotating shaft and the left end surface of the shaking locking dead cavity, a special weaving belt is fixed on the weaving wheel, the other end of the special weaving belt is fixedly connected with the top wall of the power chamber, the upper wall of the shaking locking dead cavity is fixed with an upper brake shaft by the front side, the other end of the upper brake shaft is hinged with an upper brake plate corresponding to the ratchet wheel, the upper end surface of the upper brake plate is fixed with an upper brake extension spring, the lower end face of the lower brake plate close to the front side is fixedly provided with a lower brake tension spring, the other end of the lower brake tension spring is fixed with the bottom end face of the rocking locking cavity, the top wall of the rocking cavity is hinged with a front-back rocking rod, the other end of the rocking rod is fixedly provided with a front-back rocking heavy hammer, a front-back rocking pull rope is fixed between the front-back rocking heavy hammer and the lower end face of the lower brake plate close to the rear side, the top wall of the rocking cavity is hinged with a left-right rocking rod, the other end of the rocking rod is fixedly provided with a left-right rocking heavy hammer, and a left-right rocking pull rope is fixed between the left-right rocking heavy hammer and the upper end face of the upper brake plate close to the front side.

Technical Field

The invention relates to the field of elevators, in particular to an elevator locking device in danger.

Background

Along with the development of science and technology, high-rise buildings are more and more, the number of elevators corresponding to the high-rise buildings is more and more, and once an elevator falling accident occurs, the consequences are very serious due to the fact that floors are high.

At present, the common elevator is prevented falling and is mainly braked by safety tongs through the sensor induction, when the conditions such as power failure or sensor failure occur, the falling device cannot run, and meanwhile, the safety tongs complete braking through friction with the guide rail, so that the safety tongs cannot complete braking when the conditions such as guide rail breakage occur.

Disclosure of Invention

The invention aims to provide an elevator danger locking device which is used for overcoming the defects in the prior art.

The elevator danger locking device comprises a wall body 15, wherein a power chamber 10 is arranged in the wall body 15, an elevator shaft 24 is arranged at the lower side of the power chamber 10, guide rails 23 are symmetrically arranged at the left side and the right side of the elevator shaft 24, a plurality of falling locking mechanisms are arranged in the guide rails 23 at equal intervals, a slider connecting cavity 56 which is opened towards the inner side is arranged in each guide rail 23, the slider connecting cavity 56 vertically penetrates through each guide rail 23, a slider cavity 57 is communicated with the outer side of each slider connecting cavity 56, a trigger cavity 58 is communicated with the outer side of each slider cavity 57, the slider cavity 57 and the trigger cavity 58 also vertically penetrate through each guide rail 23, a car 22 is arranged in the elevator shaft 24, sliders 66 are symmetrically fixed at the left side and the right side of the car 22, the sliders 66 are connected with the guide rails 23 in a sliding fit manner, a passenger cavity 29 is arranged in the car 22, a shaking locking mechanism which is positioned above the passenger cavity 29 is arranged in, the inside tenesmus response mechanism that still is equipped with of car 22 is located passenger chamber 29 below, power room 10 left wall is fixed with traction motor 14, be equipped with the left end in the power room 10 with traction motor 14 fixed connection's traction shaft 67, bilateral symmetry is fixed with traction sheave 12 on the traction shaft 67, power fit is equipped with wire rope 13 on traction sheave 12, wire rope 13 one end with car 22 is fixed, and the other end is fixed with the counter weight, realizes car 22's upper and lower operation through traction motor 14's positive and negative rotation.

On the basis of the above technical scheme, the falling sensing mechanism comprises a pressing plate cavity 28, a pressing plate 27, a falling compression spring 26, a first trigger pull rope 25, a falling spring cavity 68, a trigger block 40, a trigger compression spring 41, a trigger block cavity 42 and a second trigger pull rope 43, the pressing plate cavity 28 is located at the lower side of the passenger cavity 29, the falling spring cavity 68 is located at the lower side of the pressing plate cavity 28 and communicated with the pressing plate cavity 28, the pressing plate 27 is connected with the pressing plate cavity 28 in a sliding fit manner, one end of the falling compression spring 26 is fixed with the bottom surface of the pressing plate 27, the other end of the falling compression spring 26 is fixed with the bottom surface of the falling spring cavity 68, the gravity borne by the pressing plate 27 is far greater than the elastic force of the falling compression spring 26, so that the falling compression spring 26 can push the pressing plate 27 to return to a relaxed state only when the car 22 is weightless, thereby sensing the falling of the elevator, the bottom surface of the pressing plate 27 is further fixed with a first trigger pull rope 25, the trigger block cavity 42 is located at the tail end of the bottom of the sliding block 66 and is open outwards, the trigger block 40 is connected with the trigger block cavity 42 in a sliding fit manner, one end of a trigger compression spring 41 is fixed with the trigger block 40, the other end of the trigger compression spring is fixed with the bottom wall of the trigger block cavity 42, one end of a second trigger pull rope 43 is fixed with the trigger block 40, the other end of the second trigger pull rope is fixedly connected with the first trigger pull rope 25, the elastic force of the trigger compression spring 41 is smaller than that of the falling compression spring 26, and therefore when the falling compression spring 26 returns to a relaxed state, the thrust of the falling compression spring 26 can pull the trigger block 40 back into the trigger block cavity 42 through the first trigger pull rope 25 and the second trigger pull rope 43.

On the basis of the technical scheme, the falling locking mechanism comprises a push block cavity 39, the push block cavity 39 is located at the outer side of the trigger cavity 58 and is communicated with the trigger cavity 58, a connecting rod cavity 49 is communicated with the outer side of the push block cavity 39, a first rotating shaft 46 is arranged on the rear wall of the connecting rod cavity 49 in a rotating fit manner, a first belt wheel 44 is fixed on the first rotating shaft 46, a rotating disc 47 fixedly connected with the first rotating shaft 46 is arranged on the front side of the first belt wheel 44, a round pin 48 is fixed on the front end face of the rotating disc 47, a push block 37 is arranged in the push block cavity 39 in a sliding fit manner, a connecting rod 36 is hinged on the outer side face of the push block 37, the outer end of the connecting rod 36 is connected with the round pin 48 in a rotating fit manner, a push block compression spring 38 is fixed on the outer side face of the connecting rod cavity 49, the other end of the push block compression spring 38 is fixedly connected with the round pin 48, and the elasticity of the, therefore, when the trigger block 40 moves downwards to contact with the push block 37, the push block 37 is pushed into the push block cavity 39, a bevel gear cavity 53 is arranged on the lower side of the connecting rod cavity 49, a second rotating shaft 51 is arranged on the front end surface of the bevel gear cavity 53 in a rotating fit manner, a second belt pulley 50 is fixedly arranged on the second rotating shaft 51, a transmission belt 45 is in a power fit manner between the second belt pulley 50 and the first belt pulley 44, a first bevel gear 52 fixedly connected with the second rotating shaft 51 is arranged on the rear side of the second belt pulley 50, an anti-falling plate cavity 60 communicated with the slider cavity 57 is arranged on the inner side of the bevel gear cavity 53, a third rotating shaft 55 is arranged on the inner side surface of the anti-falling plate cavity 60 in a rotating fit manner, the third rotating shaft 55 extends leftwards into the bevel gear cavity 53, a second bevel gear 54 fixedly connected with the third rotating shaft 55 is arranged in the bevel gear cavity 53, the second bevel gear 54 is meshed with the first bevel gear 52, the anti-falling plate 59 fixedly connected with the anti-falling plate 59 is arranged in the anti-falling plate cavity 60, and the tail end of the bottom side of the rear end face of the anti-falling plate cavity 60 is provided with 71.

On the basis of the technical scheme, the shaking locking mechanism comprises a shaking locking cavity 30, the shaking locking cavity 30 is positioned in the car 22 and positioned on the upper side of the passenger cavity 29, the left side of the shaking locking cavity 30 is provided with a front shaking cavity 16 and a rear shaking cavity 16, the right side of the shaking locking cavity 30 is provided with a left shaking cavity 34 and a right shaking cavity 34, the right end surface of the shaking locking cavity 30 is rotatably matched with a fourth rotating shaft 31, a ratchet 63 is fixed on the fourth rotating shaft 31, the left side of the ratchet 63 is provided with a pulley wheel 20 fixedly connected with the fourth rotating shaft 31, a spiral spring 21 is fixed between the left end of the fourth rotating shaft 31 and the left end surface of the shaking locking cavity 30, a special braid 11 is fixed on the pulley wheel 20, the other end of the special braid 11 is fixedly connected with the top wall of the power chamber 10, an upper brake shaft 65 is fixed on the front side of the upper wall of the shaking locking cavity 30, and an upper brake plate 64 corresponding to the ratchet 63 is hinged to the other, an upper brake extension spring 69 having the other end fixed to the upper end surface of the swing lock cavity 30 is fixed to the rear side of the upper end surface of the upper brake plate 64, a lower brake lever 62 is fixed to the rear side of the lower wall of the swing lock cavity 30, a lower brake plate 61 corresponding to the ratchet 63 is hinged to the other end of the lower brake lever 62, a lower brake extension spring 70 having the other end fixed to the bottom end surface of the swing lock cavity 30 is fixed to the front side of the lower end surface of the lower brake plate 61, a front/rear swing lever 17 rotatable forward and backward is hinged to the top wall of the front/rear swing cavity 16, a front/rear swing weight 18 is fixed to the other end of the front/rear swing lever 17, a front/rear swing rope 19 is fixed between the front/rear swing weight 18 and the rear side of the lower end surface of the lower brake plate 61, a left/right swing lever 33 rotatable leftward and rightward is hinged to the top wall of the left/right swing lever, a roll cord 35 is fixed between the roll weight 32 and the upper end surface of the upper brake plate 64 on the front side, and the roll weight 18 and the roll weight 32 sense the roll in the front-back and horizontal directions, and the roll cord 19 and the roll cord 35 tilt the lower brake plate 61 and the upper brake plate 64 and contact the ratchet 63 to prevent the ratchet 63 from rotating in the normal direction.

The invention has the beneficial effects that: the elevator anti-falling device is simple in structure and convenient to operate, when an elevator falls, the pressure plate is weightless, the anti-falling plate does not return to the anti-falling plate cavity through mechanical transmission to brake the out-of-control elevator, the falling is sensed through the mechanical structure, the safety is improved, when the elevator shakes, the shaking locking mechanism is triggered to enable the elevator car to be directly fixed with a wall body through the special woven belt, and the safety is guaranteed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic diagram of the overall structure of an elevator distress locking device of the invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 3 is a schematic cross-sectional view at B-B in FIG. 1;

FIG. 4 is a schematic cross-sectional view at C-C in FIG. 1;

FIG. 5 is a schematic cross-sectional view taken at D-D in FIG. 4;

fig. 6 is a schematic sectional view at E-E in fig. 1.

Detailed Description

The invention will now be described in detail with reference to fig. 1-6, for convenience of description, the following orientations will now be defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

Referring to fig. 1 to 6, an elevator danger locking device according to an embodiment of the present invention includes a wall 15, a power chamber 10 is provided in the wall 15, an elevator shaft 24 is provided at a lower side of the power chamber 10, guide rails 23 are symmetrically provided at left and right sides of the elevator shaft 24, a plurality of falling locking mechanisms are provided at equal intervals in the guide rails 23, a slider connecting cavity 56 opened inward is provided at an inner side of the guide rail 23, the slider connecting cavity 56 penetrates the guide rails 23 up and down, a slider cavity 57 is provided at an outer side of the slider connecting cavity 56, a trigger cavity 58 is provided at an outer side of the slider cavity 57, the slider cavity 57 and the trigger cavity 58 similarly penetrate the guide rails 23 up and down, a car 22 is provided in the elevator shaft 24, sliders 66 are symmetrically fixed at left and right sides of the car 22, the sliders 66 are connected with the guide rails 23 in a sliding fit manner, a passenger cavity 29 is provided in the car, the inside locking mechanism that is equipped with of car 22 is located rocking of passenger chamber 29 top, the inside sensing mechanism that falls that is located of still being equipped with of car 22 passenger chamber 29 below, the wall is fixed with traction motor 14 on the left side of power house 10, be equipped with the left end in the power house 10 with traction motor 14 fixed connection's traction shaft 67, bilateral symmetry is fixed with driving sheave 12 on the traction shaft 67, power fit is equipped with wire rope 13 on driving sheave 12, wire rope 13 one end with car 22 is fixed, and the other end is fixed with the counter weight, realizes car 22's upper and lower operation through traction motor 14's positive and negative rotation.

In addition, in one embodiment, the falling sensing mechanism includes a pressing plate cavity 28, a pressing plate 27, a falling compression spring 26, a first trigger rope 25, a falling spring cavity 68, a trigger block 40, a trigger compression spring 41, a trigger block cavity 42 and a second trigger rope 43, the pressing plate cavity 28 is located at the lower side of the passenger cavity 29, the falling spring cavity 68 is located at the lower side of the pressing plate cavity 28 and is communicated with the pressing plate cavity 28, the pressing plate 27 is connected with the pressing plate cavity 28 in a sliding fit manner, one end of the falling compression spring 26 is fixed to the bottom surface of the pressing plate 27, the other end of the falling compression spring 26 is fixed to the bottom surface of the falling spring cavity 68, the weight force applied to the pressing plate 27 is much larger than the elastic force of the falling compression spring 26, so that the falling compression spring 26 can push the pressing plate 27 to return to a relaxed state only when the car 22 is weightless, thereby completing the sensing of the falling of the elevator, the bottom surface of the pressing plate 27 is further fixed with a first trigger pull rope 25, the trigger block cavity 42 is located at the tail end of the bottom of the sliding block 66 and is open outwards, the trigger block 40 is connected with the trigger block cavity 42 in a sliding fit manner, one end of a trigger compression spring 41 is fixed with the trigger block 40, the other end of the trigger compression spring is fixed with the bottom wall of the trigger block cavity 42, one end of a second trigger pull rope 43 is fixed with the trigger block 40, the other end of the second trigger pull rope is fixedly connected with the first trigger pull rope 25, the elastic force of the trigger compression spring 41 is smaller than that of the falling compression spring 26, and therefore when the falling compression spring 26 returns to a relaxed state, the thrust of the falling compression spring 26 can pull the trigger block 40 back into the trigger block cavity 42 through the first trigger pull rope 25 and the second trigger pull rope 43.

In addition, in one embodiment, the falling locking mechanism includes the push block cavity 39, the push block cavity 39 is located outside the trigger cavity 58 and is communicated with the trigger cavity 58, the push block cavity 39 is communicated with the link cavity 49, the rear wall of the link cavity 49 is provided with a first rotating shaft 46 in a rotating fit manner, the first rotating shaft 46 is fixed with a first belt wheel 44, the front side of the first belt wheel 44 is provided with a rotating disc 47 fixedly connected with the first rotating shaft 46, the front end surface of the rotating disc 47 is fixed with a round pin 48, the push block cavity 39 is provided with a push block 37 in a sliding fit manner, the outer side surface of the push block 37 is hinged with a connecting rod 36, the outer side end of the connecting rod 36 is connected with the round pin 48 in a rotating fit manner, the outer side surface of the link cavity 49 is fixed with a push block compression spring 38, the other end of the push block compression spring 38 is fixedly connected with the round pin 48, and the elasticity of the push block compression spring 38 is smaller than that of, therefore, when the trigger block 40 moves downwards to contact with the push block 37, the push block 37 is pushed into the push block cavity 39, a bevel gear cavity 53 is arranged on the lower side of the connecting rod cavity 49, a second rotating shaft 51 is arranged on the front end surface of the bevel gear cavity 53 in a rotating fit manner, a second belt pulley 50 is fixedly arranged on the second rotating shaft 51, a transmission belt 45 is in a power fit manner between the second belt pulley 50 and the first belt pulley 44, a first bevel gear 52 fixedly connected with the second rotating shaft 51 is arranged on the rear side of the second belt pulley 50, an anti-falling plate cavity 60 communicated with the slider cavity 57 is arranged on the inner side of the bevel gear cavity 53, a third rotating shaft 55 is arranged on the inner side surface of the anti-falling plate cavity 60 in a rotating fit manner, the third rotating shaft 55 extends leftwards into the bevel gear cavity 53, a second bevel gear 54 fixedly connected with the third rotating shaft 55 is arranged in the bevel gear cavity 53, the second bevel gear 54 is meshed with the first bevel gear 52, the anti-falling plate 59 fixedly connected with the anti-falling plate 59 is arranged in the anti-falling plate cavity 60, and the tail end of the bottom side of the rear end face of the anti-falling plate cavity 60 is provided with 71.

In addition, in one embodiment, the swaying locking mechanism includes a swaying locking cavity 30, the swaying locking cavity 30 is located in the car 22 and located on the upper side of the passenger cavity 29, the swaying locking cavity 30 is provided with a front swaying cavity 16 on the left side, the swaying locking cavity 30 is provided with a left swaying cavity 34 on the right side, the swaying locking cavity 30 is provided with a fourth rotating shaft 31 on the right end surface in a rotating fit manner, a ratchet 63 is fixed on the fourth rotating shaft 31, a pulley wheel 20 fixedly connected with the fourth rotating shaft 31 is arranged on the left side of the ratchet 63, a coil spring 21 is fixed between the left end of the fourth rotating shaft 31 and the left end surface of the swaying locking cavity 30, a special braid 11 is fixed on the pulley wheel 20, the other end of the special braid 11 is fixedly connected with the top wall of the power chamber 10, an upper brake shaft 65 is fixed on the upper wall of the swaying locking cavity 30 close to the front side, and the other end of the upper brake shaft 65 is hinged with, an upper brake extension spring 69 having the other end fixed to the upper end surface of the swing lock cavity 30 is fixed to the rear side of the upper end surface of the upper brake plate 64, a lower brake lever 62 is fixed to the rear side of the lower wall of the swing lock cavity 30, a lower brake plate 61 corresponding to the ratchet 63 is hinged to the other end of the lower brake lever 62, a lower brake extension spring 70 having the other end fixed to the bottom end surface of the swing lock cavity 30 is fixed to the front side of the lower end surface of the lower brake plate 61, a front/rear swing lever 17 rotatable forward and backward is hinged to the top wall of the front/rear swing cavity 16, a front/rear swing weight 18 is fixed to the other end of the front/rear swing lever 17, a front/rear swing rope 19 is fixed between the front/rear swing weight 18 and the rear side of the lower end surface of the lower brake plate 61, a left/right swing lever 33 rotatable leftward and rightward is hinged to the top wall of the left/right swing lever, a roll cord 35 is fixed between the roll weight 32 and the upper end surface of the upper brake plate 64 on the front side, and the roll weight 18 and the roll weight 32 sense the roll in the front-back and horizontal directions, and the roll cord 19 and the roll cord 35 tilt the lower brake plate 61 and the upper brake plate 64 and contact the ratchet 63 to prevent the ratchet 63 from rotating in the normal direction.

Under normal conditions, the front-back shaking weight 18 and the left-right shaking weight 32 are both in a static state under the action of self gravity, the front-back shaking pull rope 19 and the left-right shaking pull rope 35 are both in a tight state, the upper braking extension spring 69 and the lower braking extension spring 70 are both in a loose state, the upper braking plate 64 and the lower braking plate 61 are both in a horizontal state, the ratchet wheel 63 can rotate freely, the lower dropping compression spring 26 is in a compression state, the triggering compression spring 41 is in a loose state, the second triggering pull rope 43 and the first triggering pull rope 25 are both in a tight state, a part of the triggering block 40 is positioned in the triggering block cavity 42, a part of the triggering block 40 extends into the triggering cavity 58, the pushing block compression spring 38 is in a loose state, the round pin 48 is positioned at the innermost position under the thrust of the pushing block compression spring 38, the connecting rod 36 is in a horizontal state, a part of the pushing block 37 is positioned in the pushing block cavity 39, and a, the fall arrest plate 59 is in a horizontal position, with one portion located in the fall arrest plate cavity 60 and the other portion located in the slider cavity 57.

Mechanical action sequence of the whole device:

1: when the elevator normally runs downwards, the traction motor 14 drives the traction shaft 67 to rotate, thereby driving the traction sheave 12 to rotate, thereby driving the car 22 to move downwards through the steel wire rope 13, the special webbing 11 is pulled out from the fabric wheel 20 under the pulling force of the downward running of the elevator, thereby driving the fabric wheel 20 to rotate, thereby driving the fourth rotating shaft 31 to rotate, so that the spiral spring 21 is twisted, when the elevator moves downwards until the trigger block 40 contacts with the push block 37, because the elastic force of the trigger compression spring 41 is larger than that of the push block compression spring 38, the push block 37 is pushed back into the push block cavity 39 under the pushing force of the trigger compression spring 41, the rotating disc 47 is driven to rotate through the round pin 48, thereby driving the first rotating shaft 46 and the first belt pulley 44 to rotate, the second pulley 50 is driven to rotate through the transmission belt 45, thereby driving the second rotating shaft 51 and the first bevel gear 52 to rotate, thereby driving the second rotating shaft 54 and the third rotating shaft 55 to rotate, thereby driving the anti-falling plate 59 to rotate, and the anti-falling plate 59 returns to the anti-falling plate cavity 60, so that the elevator can normally pass downwards.

2: when the elevator normally runs upwards, the traction motor 14 drives the traction shaft 67 to rotate reversely, so as to drive the traction sheave 12 to rotate reversely, so as to drive the car 22 to move upwards through the steel wire rope 13, the elastic force of the spiral spring 21 drives the fourth rotating shaft 31 to rotate reversely, so as to drive the weaving belt wheel 20 to rotate reversely, so that the special woven belt 11 is wound back onto the weaving belt wheel 20, when the elevator moves upwards until the top end face of the car 22 contacts with the anti-falling plate 59, the anti-falling plate 59 rotates reversely back into the anti-falling plate cavity 60 under the effect of the upward thrust of the elevator, so that the elevator can normally pass upwards.

3: when the elevator is in danger and shakes, if the elevator shakes forwards and backwards, the forward and backward shaking weight 18 starts to swing, the forward and backward shaking pull rope 19 pulls the lower brake plate 61 to tilt against the pulling force of the lower brake extension spring 70, so that the lower brake plate 61 is in contact with the ratchet wheel 63, the ratchet wheel 63 cannot rotate, the fourth rotating shaft 31 and the pulley wheel 20 cannot rotate, the special mesh belt 11 is tightened, braking on the car 22 is completed, if the elevator shakes, the leftward and rightward shaking weight 32 starts to swing, the traction motor 14 is pulled 6 by the leftward and rightward shaking pull rope 35 to tilt against the pulling force of the upper brake extension spring 69, the upper brake plate 64 is in contact with the ratchet wheel 63, the ratchet wheel 63 cannot rotate forwards, the fourth rotating shaft 31 and the pulley wheel 20 cannot rotate, the special mesh belt 11 is tightened, and braking on the car 22 is completed.

4: when the elevator descends, the car 22 is in a weightless state, the pressure plate 27 loses the gravity borne by itself and then slides upwards under the thrust action of the descending compression spring 26, so that the second trigger pull rope 43 drives the trigger block 40 to overcome the thrust of the trigger compression spring 41 and slide inwards to the whole body and return to the trigger block cavity 42, the trigger block 40 is not contacted with the push block 37 any more, at the moment, the push block 37 and the anti-falling plate cavity 60 are in a normal state, and when the elevator descends to the bottom surface of the car 22 and contacts the anti-falling plate cavity 60, the car 22 is braked through the anti-falling plate cavity 60.

The invention has the beneficial effects that: the elevator anti-falling device is simple in structure and convenient to operate, when an elevator falls, the pressure plate is weightless, the anti-falling plate does not return to the anti-falling plate cavity through mechanical transmission to brake the out-of-control elevator, the falling is sensed through the mechanical structure, the safety is improved, when the elevator shakes, the shaking locking mechanism is triggered to enable the elevator car to be directly fixed with a wall body through the special woven belt, and the safety is guaranteed.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.