CN115626541A - Elevator initiative safety buffer area structure - Google Patents

Abstract

An elevator active safety buffer belt structure comprises a well, wherein a buffer belt is arranged in the well, a plurality of connecting pieces which enable the buffer belt to be kept in a state of leaning against the inner wall surface of the well are arranged in the well, a driving unit which is used for driving the buffer belt to be separated from the connecting pieces and stretch across the middle part of the well is arranged on the well, one end of the buffer belt is connected with the well, and the other end of the buffer belt is connected with the driving unit; the driving unit is connected with a controller used for controlling the driving unit to work according to the descending speed of the elevator car. When the controller learns that elevator car descends at an excessive speed, the controller starts the drive unit and drives the buffering area to shake off from the connecting piece and span in the middle part of well, intercepts and cushions the elevator car that descends at an excessive speed well, reaches the effect of buffering in advance, effectively reduces the speed and the impact force that elevator car descends, lets the buffering area and the buffer in the well pit make up the buffering shock attenuation, realizes dual buffering absorbing's mesh, guarantees passenger's safety.

Description

Elevator initiative safety buffer area structure

Technical Field

The invention relates to the technical field of elevators, in particular to an active safety buffer belt structure of an elevator.

Background

At present, the operation of elevator in daily life is very frequent, and the elevator can break down in the operation process inevitable, the condition of falling fast for example, current elevator meets when the trouble takes place to fall fast, although can through the buffer buffering elevator car in the well pit impact force that produces when descending at an excessive speed, nevertheless the elevator car is great to the impact force of buffer in the pit when descending at an excessive speed, lead to the bottom of elevator car and the buffer contact back in the pit, buffer in the pit just is compressed to its extreme position of buffering stroke very fast, still exist in the twinkling of an eye too big, can not effectively carry out the absorbing condition of impact force, and the security performance is relatively poor, can not satisfy current user demand.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides an active safety buffer belt structure of an elevator.

The technical scheme adopted by the invention for solving the technical problem is as follows:

the utility model provides an elevator initiative safety buffer takes structure, includes the well, its characterized in that: a buffer belt is arranged in the shaft, a plurality of connecting pieces which enable the buffer belt to be kept in a state of leaning against the inner wall surface of the shaft are arranged in the shaft, a driving unit which is used for driving the buffer belt to be separated from the connecting pieces and stretch across the middle part of the shaft is arranged on the shaft, one end of the buffer belt is connected with the shaft, and the other end of the buffer belt is connected with the driving unit; the driving unit is connected with a controller used for controlling the driving unit to work according to the descending speed of the elevator car.

In the invention, the buffer belt is a flexible hoisting belt.

In the invention, the connecting piece is a binding band, the head end and the tail end of the binding band are connected through a magic tape structure, and the buffer band is bound after the head end and the tail end of the binding band are connected.

In the invention, a connecting seat is arranged on the inner wall surface of the well or/and a counterweight guide rail bracket in the well, and an inserting ring for allowing one end of a binding band to pass through is arranged on the connecting seat.

In the invention, the top surface of the connecting seat is a supporting plane capable of supporting the buffer belt.

In the invention, one end of the buffer belt is connected with the shaft through a spring buffer component.

The spring buffer assembly comprises a buffer base, a buffer lifting shaft, a buffer pressing plate and a buffer spring, wherein the buffer base is fixed on the inner side wall of a hoistway, a vertical through hole is formed in the buffer base, and the upper end of the buffer lifting shaft penetrates through the vertical through hole from the bottom of the buffer base; the bottom of the buffer lifting shaft is provided with a buffer connecting ring, and one end of the buffer belt is tied to the buffer connecting ring; the buffer lifting shaft is sleeved with the buffer pressing plate and the buffer spring, and the top of the buffer lifting shaft is sleeved with the buffer limiting nut in a threaded manner; the bottom of the buffer spring is abutted against the top surface of the buffer base, and the top of the buffer spring is abutted against the bottom surface of the buffer pressing plate.

In the invention, two opposite inner wall surfaces of the hoistway are respectively provided with a rope guide seat, the rope guide seats are provided with a rope guide channel for guiding the buffer belt, the rope guide channel penetrates through the rope guide seats from left to right, and the buffer belt penetrates through the rope guide channels.

In the present invention, the driving unit is a buffer hoist.

In the invention, the controller is in communication connection with a speed sensor.

The invention has the beneficial effects that: the buffer belt is fixed through the connecting piece in a normal state and keeps a state of leaning against the inner wall surface of the well; when the controller learns that elevator car descends at an excessive speed, the controller starts the drive unit and drives the buffering area to shake off from the connecting piece and span in the middle part of well, intercepts and cushions the elevator car that descends at an excessive speed well, reaches the effect of buffering in advance, effectively reduces the speed and the impact force that elevator car descends, lets the buffering area and the buffer in the well pit make up the buffering shock attenuation, realizes dual buffering absorbing's mesh, guarantees passenger's safety.

Drawings

The invention is further illustrated by the following figures and embodiments:

FIG. 1 is a top view of the present embodiment;

FIG. 2 isbase:Sub>A cross-sectional view A-A of FIG. 1;

FIG. 3 is an enlarged view of the combination of the spring cushioning element and the cushioning strip of FIG. 2;

FIG. 4 is an enlarged view of I in FIG. 3;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 1;

fig. 6 is a schematic view of the buffer strip after passing through the cord guide through hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

Referring to fig. 1-5, an active safety buffer belt structure of an elevator comprises a hoistway 1, wherein a buffer belt 2 is arranged in the hoistway 1, the buffer belt 2 is close to a pit of the hoistway 1, and the buffer belt 2 is a flexible hoisting belt and has elastic force for buffering; a plurality of connecting pieces 3 which enable the buffer belt 2 to be kept close to the inner wall surface of the hoistway 1 are arranged in the hoistway 1, and the connecting pieces 3 are distributed on the rear inner wall surface, the left inner wall surface and the right inner wall surface of the hoistway 1, so that the buffer belt 2 is close to the rear inner wall surface, the left inner wall surface and the right inner wall surface of the hoistway 1 in a normal state, and the normal operation of an elevator car is prevented from being influenced; the hoistway 1 is provided with a driving unit 4 for driving the buffer belt 2 to be disengaged from the connecting piece 3 and to stretch across the middle part of the hoistway 1, one end of the buffer belt 2 is connected with the hoistway 1, and the other end of the buffer belt is connected with the driving unit 4; the driving unit 4 is connected with a controller for controlling the driving unit 4 to work according to the descending speed of the elevator car, the controller can be in communication connection with an elevator control system, the elevator control system is a conventional system for controlling the operation of an elevator, the controller is not shown in the attached drawing, and the controller can be combined on the driving unit 4.

As a preferred embodiment, the connecting piece 3 is a binding band, the two ends of the binding band are connected through a hook and loop fastener structure 31, and the buffer band 2 is bound after the binding band is connected end to end. The hook-and-loop fastener structure 31 includes a hook surface for hook-and-loop fastener disposed on the head end of the binding band and a loop surface for loop-and-loop fastener disposed on the tail end of the binding band, and the hook surface and the loop surface for loop-and-loop fastener can be adhered to each other, so that the binding band is connected end to end.

As a preferred embodiment, a connecting seat 5 is arranged on the inner wall surface of the hoistway 1 or/and a counterweight guide rail support 9 in the hoistway 1, the connecting seat 5 is fixed on the inner wall surface of the hoistway 1 or/and the counterweight guide rail support 9 in a bolt connection manner, an inserting ring 51 through which one end of a binding band passes is arranged on the connecting seat 5, and after one end of the binding band passes through a hole of the inserting ring 51, the end-to-end connection of the binding band ties the buffer belt 2, so that the buffer belt 2 is leaned against the inner wall surface of the hoistway 1. In addition, the top surface of connecting seat 5 is the bearing plane that can bearing buffering area 2, wear to insert ring 51 and fix on the bearing plane through welding mode or bolted connection mode, and after the bandage tied buffering area 2, the staff can put buffering area 2 on the bearing plane to support buffering area 2 through connecting seat 5, avoid because the dead weight of buffering area 2 and lead to buffering area 2 to throw off from the bandage.

In this embodiment, since an elevator with a counterweight is taken as an example for description, the counterweight guide rail bracket 9 is fixed on the rear inner wall surface of the hoistway 1 by bolts, the connecting seats 5 are respectively arranged on the left inner wall surface and the right inner wall surface of the hoistway 1 and the counterweight guide rail bracket 9, and the connecting piece 3 is arranged on each connecting seat 5, so that the buffer belt 2 is kept in a state of leaning against the left inner wall surface, the right inner wall surface and the rear inner wall surface of the hoistway 1 under the constraint of the connecting piece 3 on each connecting seat, as shown in fig. 1. It should be noted that, if the active safety buffer belt structure is applied to a counterweight-free elevator, the left inner wall surface, the right inner wall surface and the rear inner wall surface of the hoistway 1 are all provided with the connecting seats 5.

In a preferred embodiment, in order to improve the effect of early buffering of the buffer belt 2, one end of the buffer belt 2 is connected to the hoistway 1 via a spring buffer unit 6, and the spring buffer unit 6 is fixed to the hoistway 1. Spring buffer unit 6 includes buffer base 61, buffering lift axle 62, buffering clamp plate 63, buffer spring 64, buffer base 61 is fixed on the inside wall of well 1, be equipped with vertical through-hole on the buffer base 61, vertical through-hole is passed from buffer base 61's bottom to the upper end of buffering lift axle 62. A buffer connecting ring 66 positioned below the buffer base 61 is arranged at the bottom of the buffer lifting shaft 62, and one end of the buffer belt 2 is tied on the buffer connecting ring 66 after passing through the buffer connecting ring 66; the buffer pressure plate 63 and the buffer spring 64 are sleeved outside the buffer lifting shaft 62, and the top of the buffer lifting shaft 62 is sleeved with a buffer limit nut 65 for limiting the buffer pressure plate 63 to be disengaged from the buffer lifting shaft 62 through threads; the bottom of the buffer spring 64 abuts against the top surface of the buffer base 61, and the top abuts against the bottom surface of the buffer pressing plate 63. When the elevator car is pressed against the buffer belt 2, the buffer elevating shaft 62 moves down, the buffer spring 64 is compressed, and the impact force is reduced by the buffer spring 64.

Referring to fig. 2 to 5, in order to facilitate the sliding of the buffer belt 2, two opposite inner wall surfaces of the hoistway 1 are respectively provided with a rope guide seat 7, the rope guide seats 7 are fixedly connected to the hoistway 1, and the rope guide seats 7 are welded with connection support legs 71 for connecting with the hoistway 1 through bolts. Referring to fig. 6, the rope guide seats 7 are provided with rope guide channels 72 for guiding the buffer strips 2, the rope guide channels 72 penetrate through the rope guide seats 7 from left to right, the buffer strips 2 penetrate through the rope guide channels 72, one end of each buffer strip 2 penetrates through the rope guide channel 72 of one of the rope guide seats 7 and then is tied to the buffer connecting ring 66, and the other end of each buffer strip 2 penetrates through the rope guide channel 72 of the other rope guide seat 7 and then is connected to the driving unit 4.

In this embodiment, the axial cross-section of leading rope passageway 72 is the hyperbola shape to the diameter crescent formation horn mouth at both ends about leading rope passageway 72 avoids having the edges and corners of scratch buffer zone 2 in leading rope passageway 72, is the design of horn mouth through leading rope passageway 72 both ends moreover, makes buffer zone 2 pass behind leading rope passageway 72 no matter which direction switching-over is faced, can both lead, so that buffer zone 2 violently establishes at well 1 middle part. In addition, the surface of the buffer belt 2 can be coated with a lubricating oil layer for lubrication and corrosion prevention, so that the friction between the buffer belt 2 and the parts such as the car, the rope guide seat 7, the driving unit 4 and the like can be reduced, and the purpose of prolonging the service life of the buffer belt 2 is achieved.

In a preferred embodiment, the driving unit 4 is a buffer hoist, the buffer hoist can refer to a hoist of an existing elevator, and one end of the buffer belt 2 is fixed on a traction sheave of the buffer hoist; the controller is in communication connection with a speed sensor 8, the speed sensor 8 is installed on a car of the elevator, and the speed sensor 8 is in communication connection with the controller through an elevator control system. In addition, the controller is connected with an encoder for detecting the work information of the buffer tractor, and the encoder is installed on the driving unit 4.

When the controller detects that the elevator car descends in an overspeed way through the speed sensor 8, the controller starts the buffer tractor to enable a traction wheel of the buffer tractor to roll up the buffer belt 2, the encoder detects the working state of the buffer tractor in the process, and the buffer belt 2 rapidly breaks away from the binding belt under the pulling of the buffer tractor; when the controller judges that the buffer belt 2 stretches across the middle part of the hoistway 1 under the pulling of the buffer traction machine through the detection information of the encoder, the controller controls a brake of the buffer traction machine to brake, and the buffer traction machine is closed; at this moment, the elevator car descending at an overspeed is supported by the buffer belt 2, and the buffer spring 64 is compressed, so that the effect of buffering in advance is achieved, the descending speed of the elevator car is effectively reduced, the elevator car is prevented from violently colliding with a buffer in a pit of the hoistway 1, and the collision impact force is reduced.

The above description is only a preferred embodiment of the present invention, and the technical solutions that achieve the objects of the present invention by substantially the same means are within the protection scope of the present invention.

Claims (10)

1. An elevator initiative safety buffer takes structure, includes well (1), its characterized in that: a buffer belt (2) is arranged in the well (1), a plurality of connecting pieces (3) which enable the buffer belt (2) to be kept in a state of leaning against the inner wall surface of the well (1) are arranged in the well (1), a driving unit (4) which is used for driving the buffer belt (2) to be disengaged from the connecting pieces (3) and stretches across the middle of the well (1) is arranged on the well (1), one end of the buffer belt (2) is connected with the well (1), and the other end of the buffer belt is connected with the driving unit (4); the driving unit (4) is connected with a controller which is used for controlling the driving unit (4) to work according to the descending speed of the elevator car.

2. The active safety buffer belt structure of an elevator according to claim 1, wherein: the buffer belt (2) is a flexible hoisting belt.

3. The active safety buffer belt structure of an elevator according to claim 1, wherein: the connecting piece (3) is a binding band, the head end and the tail end of the binding band are connected through a magic tape structure (31), and the buffer belt (2) is bound after the head end and the tail end of the binding band are connected.

4. An elevator active safety buffer belt structure as claimed in claim 3, wherein: the elevator hoistway fixing device is characterized in that a connecting seat (5) is arranged on the inner wall surface of the hoistway (1) or/and a counterweight guide rail support (9) in the hoistway (1), and a penetrating ring (51) for penetrating through one end of a binding band is arranged on the connecting seat (5).

5. The active safety buffer belt structure of an elevator as claimed in claim 4, wherein: the top surface of the connecting seat (5) is a bearing plane capable of bearing the buffer belt (2).

6. The elevator active safety buffer belt structure of claim 1, wherein: one end of the buffer belt (2) is connected with the well (1) through a spring buffer component (6).

7. The active safety buffer belt structure of an elevator according to claim 6, wherein: the spring buffer assembly (6) comprises a buffer base (61), a buffer lifting shaft (62), a buffer pressing plate (63) and a buffer spring (64), wherein the buffer base (61) is fixed on the inner side wall of the hoistway (1), a vertical through hole is formed in the buffer base (61), and the upper end of the buffer lifting shaft (62) penetrates through the vertical through hole from the bottom of the buffer base (61); a buffer connecting ring (66) is arranged at the bottom of the buffer lifting shaft (62), and one end of the buffer belt (2) is tied on the buffer connecting ring (66); the buffer pressure plate (63) and the buffer spring (64) are sleeved outside the buffer lifting shaft (62), and the top of the buffer lifting shaft (62) is sleeved with a buffer limiting nut (65) in a threaded manner; the bottom of the buffer spring (64) is abutted against the top surface of the buffer base (61), and the top of the buffer spring is abutted against the bottom surface of the buffer pressing plate (63).

8. The elevator active safety buffer belt structure of claim 1, wherein: the buffer belt is characterized in that two opposite inner wall surfaces of the well (1) are respectively provided with a rope guide seat (7), the rope guide seats (7) are respectively provided with a rope guide channel (72) for guiding the buffer belt (2), the rope guide channels (72) penetrate through the rope guide seats (7) from left to right, and the buffer belt (2) penetrates through the rope guide channels (72).

9. The elevator active safety buffer belt structure of claim 1, wherein: the driving unit (4) is a buffer tractor.

10. The active safety buffer belt structure of an elevator according to claim 1, wherein: the controller is in communication connection with a speed sensor (8).

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