CN216737033U

CN216737033U - Elevator rescue device

Info

Publication number: CN216737033U
Application number: CN202220262567.6U
Authority: CN
Inventors: 韩仲斌; 朱宏晓; 郭志枭; 倪鹏
Original assignee: Tisheng Elevator Shanghai Co ltd
Current assignee: Tisheng Elevator Shanghai Co ltd
Priority date: 2022-02-09
Filing date: 2022-02-09
Publication date: 2022-06-14
Anticipated expiration: 2032-02-09

Abstract

The present invention relates to an elevator rescue device, and in order to solve the above problems, the present invention provides an elevator rescue device including: a base assembly; a spindle rotatably mounted to the base assembly; a drum mounted to the rotating shaft and capable of rotating along with the rotating shaft; a lifting cord wound around the drum; the control arm is detachably mounted to one end of the rotating shaft and can drive the rotating shaft to rotate along a first direction; a stop device mounted to the base and the shaft, the stop device capable of preventing rotation of the shaft in a second direction; and a rope clamping device which is installed on the lifting rope and is connected with a steel wire rope of the elevator. The elevator rescue device can avoid secondary harm caused by improper operation of rescue workers in the process of dragging the lift car.

Description

Elevator rescue device

Technical Field

The utility model relates to the field of elevators, in particular to an elevator rescue device.

Background

When the elevator runs and causes a problem, passengers are trapped in the elevator car, timely and safe measures need to be taken to implement rescue. The main technical rescue measures in the current industry include:

(1) and manually or electrically releasing the brake to move the car to the flat position.

(2) The barring gear is operated to move the car to the flat-bed position.

(3) The emergency electric operation moves the elevator car to the flat position.

The main technical measures can only rescue general elevator faults, and when the elevator has other complicated or even extremely severe conditions, the measures can not be taken to smoothly rescue, such as:

the car and the counterweight are in a balance position, and the elevator cannot run through emergency electric operation due to power failure or electrical faults and the like, and cannot move the car through turning and brake releasing. Common measures taken in the current industry are to move the car by breaking the balance by throwing sandbags to the top of the car to increase the weight of the car or standing in the pit to pull a compensating chain. The rescue modes are complex in operation and heavy in work, and rescue workers are easily accidentally injured.

Aiming at other complex conditions of the elevator, some units also adopt rescue workers to enter the car top, open the car top safety window, pull passengers to the car top and leave the hoistway. Passengers generally lack professional knowledge, have fear and urge psychological reactions after entering the car roof, and are very easy to fall accidentally, scratch and the like for old people, children and patients

It can be seen that some existing rescue modes are single and only routine rescue can be carried out; and some rescue modes are complex in operation and low in efficiency, have high safety risk, are easy to delay time and even bring secondary damage.

Therefore, there is a need for further improvement in existing elevator rescue modes.

The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides an elevator rescue device which can avoid secondary damage caused by improper operation of rescue workers in the process of dragging a lift car.

In order to solve the above problems, the present invention provides an elevator rescue apparatus including: a base assembly; a spindle rotatably mounted to the base assembly; a drum mounted to the rotating shaft and capable of rotating along with the rotating shaft; a lifting cord wound around the drum; the control arm is detachably mounted to one end of the rotating shaft and can drive the rotating shaft to rotate along a first direction; a stop device mounted to the base and the shaft, the stop device capable of preventing rotation of the shaft in a second direction; and a rope clamping device which is installed on the lifting rope and is connected with a steel wire rope of the elevator.

Preferably, the stopping means comprises: the ratchet plate is mounted to the rotating shaft and can be driven by the rotating shaft to rotate along a first direction; a stop block fixed to the base assembly, the stop block capable of preventing rotation of the ratchet plate in the second direction, and thereby preventing rotation of the shaft in the second direction.

Preferably, the stopping means further comprises: and one end of the elastic piece is connected to the base assembly, and the other end of the elastic piece is connected to the stopping block, so that the stopping block always abuts against the ratchet plate.

Preferably, the stopping means further comprises: a housing capable of encasing the ratchet plate, the stop block and the resilient member.

Preferably, the elevator rescue apparatus further comprises: a chuck for gripping the lifting cord to prevent the lifting cord from disengaging from the drum.

Preferably, the chuck further comprises: one end of the lifting rope is fixed between the two pressing plates; a screw member connecting the two pressure plates together.

Preferably, the base assembly comprises a first bracket and a second bracket, the rotating shaft is rotatably mounted on the first bracket and the second bracket, and one end of the rotating shaft penetrates out of the first bracket.

Preferably, the drum is mounted to a portion of the shaft between the first and second brackets.

Preferably, the stop block of the stop device is mounted to the first bracket.

Preferably, one end of the manipulating arm is provided with a rectangular hole, one end of the rotating shaft, which is connected to the manipulating arm, is provided with a boss corresponding to the rectangular hole, and the boss is clamped into the rectangular hole so as to realize the connection of the manipulating arm and the rotating shaft.

The elevator rescue device has the following advantages:

(1) the elevator rescue device is installed on the rack, can flexibly utilize the space of the machine room at the top end of the elevator shaft, and is convenient to operate and high in mobility.

(2) This elevator rescue device's stop device has reverse self-locking function, can be at the traction car in-process, prevents that the accident from loosening behind the operating arm, and elevator car stops to remove simultaneously, has avoided the rescue personnel to operate the secondary harm that improperly brings.

(3) During rescue, the rescue workers use the machine room floor as an operation platform, do not need to enter a pit, and do not need to climb onto the car roof through the car roof escape window and leave the shaft, so that the risk that the rescue workers and passengers are injured in the rescue process is effectively reduced.

(4) The elevator can move upwards or downwards to a flat bed (an unlocking area) by lifting different positions of the elevator steel wire rope, so that the elevator can be moved to a nearby flat bed position in the fastest time, and the rescue speed is increased.

The apparatus of the present invention has other features and advantages which will be apparent from or are set forth in detail in the accompanying drawings and the following embodiments incorporated herein, which together serve to explain certain principles of the utility model.

Drawings

Fig. 1 is a schematic view of an application scenario of an elevator rescue apparatus of the present invention;

fig. 2 is a schematic structural diagram of an elevator rescue apparatus of the present invention;

FIG. 3 is a schematic structural diagram of a rotating shaft according to the present invention;

FIG. 4 is a schematic view of the manipulator arm of the present invention;

FIG. 5 is a schematic view of the stop device of the present invention;

FIG. 6 is a schematic structural view of the chuck of the present invention;

FIG. 7 is a schematic view of a platen in the chuck;

fig. 8 is a schematic view of another platen in the cartridge.

It is to be understood that the drawings are not necessarily to scale, presenting a simplified representation of various features illustrative of the utility model, illustrative of the basic principles of the utility model. The specific design features disclosed herein, including, for example, specific dimensions, orientations, locations, and shapes, will be determined in part by the particular application and environment of use.

In the drawings, like numerals refer to like or equivalent parts throughout the several views of the drawings.

Detailed Description

Reference will now be made in detail to various embodiments of the utility model, examples of which are illustrated in the accompanying drawings and described below. While the utility model will be described in conjunction with the exemplary embodiments, it will be understood that this description is not intended to limit the utility model to these exemplary embodiments. On the contrary, the utility model is intended to cover not only these exemplary embodiments, but also various alternatives, modifications, equivalents and other embodiments, which may be included within the spirit and scope of the utility model as defined by the appended claims.

The elevator rescue device is installed in a machine room at the top of an elevator shaft.

Specifically, the elevator rescue device is arranged on a frame 2 of a bearing beam 1, a tractor 3 and a guide wheel 4 are further arranged on the frame 2, the tractor 3 is provided with a traction wheel 31, and a steel wire rope is wound on the guide wheel 4 and the traction wheel 31. The wire ropes can be roughly divided into a car-side wire rope 5 and a counterweight-side wire rope 6.

The elevator rescue device realizes the purpose of towing the elevator car to a nearby leveling area through the steel wire rope 5 at the side of the traction car or the steel wire rope 6 at the counterweight side, and then rescue personnel can open the door to rescue people.

An elevator rescue apparatus according to the present invention will be described below with reference to fig. 1 to 8.

As shown in fig. 1 to 8, the present invention provides an elevator rescue device 7 including: a base assembly 71, a rotating shaft 72, a drum 73, a lifting rope 74, an operating arm 75, a stopping device 76 and a rope clamping device 77; wherein a shaft 72 is rotatably mounted to the base assembly 71; a drum 73 is mounted to the rotating shaft 72 and is capable of rotating following the rotating shaft 72; a lift cord 74 is wound around the drum; the operating arm 75 is detachably mounted to one end of the rotating shaft 72 and can drive the rotating shaft 72 to rotate along a first direction; a stop device 76 is mounted to the base and the shaft, the stop device 76 being capable of preventing rotation of the shaft 72 in a second direction (opposite the first direction); a rope gripping device 77 is mounted to the lifting rope 74 and connected to the wire rope of the elevator.

The operating arm 75 rotates the shaft 72 and thus the drum 73, the drum 73 winds the lifting rope 74, and the lifting rope 74 pulls the wire rope by means of the rope clamping device 77, thereby pulling the elevator car.

The stopping device 76 can prevent the rotating shaft 72 from rotating along the second direction, so that the rotating drum is prevented from rotating along the second direction, the elevator car is prevented from simultaneously stopping moving after the operating arm 75 is accidentally loosened, and secondary harm caused by improper operation of rescue workers is avoided.

In an exemplary embodiment, as shown in fig. 1, the base assembly 71 includes a first bracket 711 and a second bracket 712, the rotation shaft 72 is rotatably mounted to the first bracket 711 and the second bracket 712, and one end of the rotation shaft 72 penetrates through the first bracket 711.

The first bracket 711 and the second bracket 712 are mounted to the frame 2 of the load beam 1.

The shaft 72 is a cylindrical rigid body.

The roller 73 is a cylinder, the roller 73 is concentric with the rotating shaft 72, and the roller 73 rotates synchronously with the rotating shaft 72.

In the exemplary embodiment, the drum 73 is mounted to a portion of the shaft 72 between the first bracket 711 and the second bracket 712.

In an exemplary embodiment, the lift cords 74 may be wire ropes, lift straps, chains, or other cords with equivalent functionality.

In an exemplary embodiment, the lever arm 75 is a rigid rod or bracket of sufficient strength, the longer the length of the lever arm 75, the greater the moment, and the less effort.

In an exemplary embodiment, as shown in fig. 3 and 4, one end of the manipulating arm 75 is provided with a rectangular hole 751, one end of the rotating shaft 72 connected to the manipulating arm 75 is provided with a boss 721 corresponding to the rectangular hole 751, and the boss 721 is snapped into the rectangular hole 751 to realize the connection of the manipulating arm 75 and the rotating shaft 72.

It will be appreciated that the positions of the boss and the rectangular hole may be interchanged, i.e. the boss is provided on the lever arm and the rectangular hole is provided on the pivot, and that the connection between the lever arm 75 and the pivot 72 may also be achieved, which is not illustrated.

In an exemplary embodiment, as shown in fig. 5, stop device 76 includes a ratchet plate 761 and a stop block 762.

The ratchet plate 761 is installed to the rotation shaft 72, and the ratchet plate 761 can be rotated in a first direction by the rotation shaft 72.

A stop 762 fixed to the base assembly 71, wherein the stop 762 can prevent the ratchet plate 761 from rotating in a second direction (opposite to the first direction), and further prevent the rotating shaft 72 from rotating in the second direction, so as to prevent the rotating drum 73 from rotating in the second direction.

Specifically, the stopper 762 is fixed to the outside (the side close to the operating arm 75) of the first bracket 711 of the base assembly 71, and the ratchet plate 761 is mounted to the portion of the rotating shaft 72 located outside the first bracket 711.

In an exemplary embodiment, the stop device 76 further comprises: an elastic member 763, one end of the elastic member 763 is connected to the base assembly 71, and the other end of the elastic member 763 is connected to the stopper 762, so that the stopper 762 always abuts on the ratchet plate 761.

The elastic member 763 provides a pulling force that makes the stop block 762 always abut against the ratchet plate 761 to prevent the ratchet plate 761 and the stop block 762 from being disengaged, and the stop function cannot be realized.

Specifically, one end of the elastic member 763 is connected to the outer side of the first bracket 711 where the stopper 762 is located, and the other end of the elastic member 763 is connected to the stopper 762.

In an exemplary embodiment, the elastic member is a spring, and the kind of the elastic member is not limited thereto, and may be any one of the prior art as long as the above function can be achieved.

In an exemplary embodiment, the stop device 76 further comprises: a housing (not shown) capable of enclosing the ratchet plate 761, the stop block 762, and the elastic member 763.

In an exemplary embodiment, a mounting hole 764 is formed on the ratchet plate 761, and the rotation shaft 72 passes through the mounting hole 764 to connect the ratchet plate 761 and the rotation shaft 72.

In an exemplary embodiment, as shown in fig. 2, 6 to 8, the elevator rescue apparatus further includes: a gripping head 78, the gripping head 78 being adapted to grip the lifting cord 74 to prevent the lifting cord 74 from disengaging from the roller 73.

In an exemplary embodiment, the collet 78 further comprises: two pressure plates 781 and a screw 782.

One end of the lifting rope 74 is fixed between the two pressing plates 781.

A screw 782 connects the two pressure plates 781 together.

The preload through the threaded member 782 provides a frictional force to compress the lift cord 74 and prevent the lift cord 74 from disengaging from the drum 73.

Two platens 781 are mounted to the base assembly 71 or drum 73.

The threaded member 782 is provided with two sets of bolts, which are tightened to provide friction against the lift cords 74.

One of the pressing plates 781 is provided with a through hole 783, a through hole 784 and two threaded holes 785, and the other pressing plate 781 is provided with threaded holes 786 corresponding to the threaded holes 785.

The tightening and lifting rope 74 passes through the through hole 783 from the outer side of one of the pressing plates 781, enters the space between the two pressing plates 781, then passes through the through hole 784, and the screw 782 passes through the screw hole 785 and the screw hole 786 to connect the two pressing plates 781 together.

Before the car is moved through the elevator rescue device 7, the safety gear of the elevator needs to be released, if the safety gear is not released in place, the moving distance of the car is possibly insufficient, the elevator rescue device 7 needs to be reused, and at the moment, the safety gear needs to be released again.

The elevator rescue device 7 may be provided on the car side or the counterweight side of the frame 2 at the top of the elevator shaft, or the elevator rescue device 7 may be provided on both the car side and the counterweight side.

The operation of the elevator rescue apparatus of the present invention will be described below with reference to the accompanying drawings.

When the elevator car needs to be rescued, the operating arm 75 is installed on the rotating shaft 72, the operating arm 75 is rotated, the operating arm 75 drives the rotating shaft 72 to rotate, and then the rotating drum 75 is driven to rotate, so that the lifting rope 74 is driven to move upwards, and the steel wire rope 5 on the car side or the steel wire rope 6 on the counterweight side is driven to move upwards.

When the rope clamp 77 on the lifting rope 74 is connected to the car-side wire rope 5, the lifting rope 74 pulls the car-side wire rope 5 upward to pull the elevator car upward to a nearby flat (unlocked) area, and then opens the door to save people.

When the rope clamping device 77 of the lifting rope 74 is connected to the counterweight-side wire rope 6, the lifting rope 74 pulls the counterweight-side wire rope 6 upward, and when the counterweight-side wire rope 6 moves upward, the car-side wire rope 5 moves downward to move the elevator car downward to a nearby flat floor (unlocking) area, and then opens the door to save people.

When the lever arm 75 is not required, the lever arm 75 can be directly detached from the rotary shaft 72.

For convenience in explanation and accurate definition in the appended claims, the terms "upper", "lower", "inner", "outer", "upper", "lower", "upward", "downward", "front", "rear", "back", "inside", "outside", "inward", "outward", "inside", "outside", "inner", "outer", "forward", "rearward" are used to describe features of the exemplary embodiments with reference to the positions of such features as displayed in the figures.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. The foregoing description is not intended to be exhaustive or to limit the utility model to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the utility model and its practical application to enable others skilled in the art to make and use various exemplary embodiments of the utility model and various alternatives and modifications thereof. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. An elevator rescue apparatus, characterized in that the elevator rescue apparatus comprises:

a base assembly;

a spindle rotatably mounted to the base assembly;

a drum mounted to the rotating shaft and capable of rotating along with the rotating shaft;

a lifting cord wound around the drum;

the control arm is detachably mounted to one end of the rotating shaft and can drive the rotating shaft to rotate along a first direction;

a stop device mounted to the base and the shaft, the stop device capable of preventing rotation of the shaft in a second direction; and

and the rope clamping device is arranged on the lifting rope and is connected with a steel wire rope of the elevator.

2. An elevator rescue apparatus as defined in claim 1, wherein the stop means comprises:

the ratchet plate is mounted to the rotating shaft and can be driven by the rotating shaft to rotate along a first direction;

a stop block fixed to the base assembly, the stop block capable of preventing rotation of the ratchet plate in the second direction, and thereby preventing rotation of the shaft in the second direction.

3. An elevator rescue apparatus as defined in claim 2, wherein the stop apparatus further comprises:

and one end of the elastic piece is connected to the base assembly, and the other end of the elastic piece is connected to the stop block, so that the stop block always abuts against the ratchet plate.

4. An elevator rescue apparatus as defined in claim 3, wherein the stop means further comprises:

a housing capable of enclosing the ratchet plate, the stop block and the resilient member.

5. An elevator rescue apparatus as defined in claim 1, further comprising:

a chuck for gripping the lifting cord to prevent the lifting cord from disengaging from the drum.

6. An elevator rescue apparatus as defined in claim 5, wherein the clip further comprises:

one end of the lifting rope is fixed between the two pressing plates;

a screw member connecting the two pressure plates together.

7. An elevator rescue apparatus as defined in claim 2, wherein the base assembly includes first and second brackets, the shaft is rotatably mounted to the first and second brackets, and one end of the shaft passes out of the first bracket.

8. An elevator rescue apparatus as defined in claim 7, wherein the drum is mounted to a portion of the shaft between the first bracket and the second bracket.

9. An elevator rescue apparatus as defined in claim 7, wherein the stop block of the stop apparatus is mounted to the first bracket.

10. An elevator rescue apparatus as defined in claim 1, wherein one end of the manipulating arm is provided with a rectangular hole, one end of the rotating shaft connected to the manipulating arm is provided with a boss corresponding to the rectangular hole, and the boss is snapped into the rectangular hole to realize connection of the manipulating arm and the rotating shaft.