WO2022099773A1

WO2022099773A1 - Elevator cab damping device

Info

Publication number: WO2022099773A1
Application number: PCT/CN2020/130693
Authority: WO
Inventors: 葛延标
Original assignee: 苏州德拉乐电梯有限公司
Priority date: 2020-11-12
Filing date: 2020-11-21
Publication date: 2022-05-19
Also published as: CN112209199B; CN112209199A

Abstract

An elevator cab damping device, comprising a cab body (1) and a lifting frame (6) provided on an upper part of the cab body (1), and further comprising: a first buffer unit (2), the first buffer unit (2) being used for having a buffering effect on an elevator when the elevator stalls and falls; a control unit (4), the control unit (4) being used for detecting the stall state of the elevator and controlling the first buffer unit (2) to work; and a connecting unit (5), the connecting unit (5) having a buffering effect, the connecting unit (5) being used for connecting the cab body (1) to the first buffer unit (2), and the connecting unit (5) being fixedly connected to the cab body (1), the first buffer unit (2) and the lifting frame (6). In the elevator cab damping device, by providing the first buffer unit, the elevator may have a buffering effect when the elevator stalls and falls, and the safety performance of the elevator is thus improved.

Description

An elevator car shock absorption device

technical field

The invention relates to the field of elevators, in particular to a shock absorption device for an elevator car.

Background technique

At present, elevators are integrated into people's work, life and other fields, and play a pivotal role. It is precisely because of the existence of elevators that they can bring convenience to people's work and life. The elevator will vibrate when it is running, which will affect the passenger experience.

technical problem

The Chinese Patent Publication No. "CN208120509U" discloses a double shock-absorbing safety elevator, which includes an elevator body, an elevator door is provided on the front end surface of the elevator body, and a first stage is fixedly connected to the upper end surface and the lower end surface of the elevator body. A shock absorbing device, the first-level shock absorbing device includes a soundproof cotton layer, a connecting piece, a clamping piston, an upper connecting plate, a shock absorbing spring, a lower connecting plate, a lower shock absorbing plate, a fixing bolt and an upper shock absorbing plate, and the The fixing bolts are fixedly connected to the four corners of the lower shock-absorbing plate, the lower connecting plate is fixedly connected to the upper end surface of the lower shock-absorbing plate, the shock-absorbing spring is fixedly connected to the upper end surface of the lower connecting plate, and the upper connecting plate is fixedly connected to the shock-absorbing plate. On the upper part of the spring, the connecting piece is fixedly connected to the upper end face of the upper connecting plate, and the snapping piston is slidably connected to the side end face of the connecting piece. The vibration damping device reduces the vibration generated by the elevator running, and at the same time greatly reduces the noise pollution generated when the elevator is running; however, the damping device can only improve the experience when the elevator is running. The elevator can not play a good buffering role when it is stalled and falling, so its protection performance is poor. Therefore, we propose a shock absorption device for an elevator car.

technical solutions

The technical problem to be solved by the present invention is to provide a shock absorbing device for an elevator car to solve the problem of poor protection of the shock absorbing device when the elevator stalls and falls in the prior art.

To achieve the above object, the present invention provides the following technical solutions:

A damping device for an elevator car, comprising a car body and a hanger arranged on the upper part of the car body, and further comprising:

a first buffer unit, which is used for buffering the elevator when the elevator stalls and falls;

a control unit, the control unit is used to detect the stall state of the elevator and control the operation of the first buffer unit;

The connecting unit plays a buffering role, and the connecting unit is used for connecting the car body and the first buffer unit, and the connecting unit is fixedly connected with the car body, the first buffer unit and the hanger.

As a further solution of the present invention, the first buffer unit includes a fixed pipe, a buffer rod, a gas generating agent and an ignition module, the fixed pipe is a cylindrical shape with an opening at one end, and an inner stop ring is arranged at the mouth of the fixed pipe, The buffer rod is arranged in the fixed tube, a piston is arranged on one end of the buffer rod arranged in the fixed tube, the gas generating agent is fixedly connected to the closed end of the fixed pipe, the ignition module is arranged inside the gas generating agent, and the ignition module ignites the gas generating agent Then, the gas generating agent generates a large amount of gas and pushes out the buffer rod; a safety valve is fixedly connected to the fixed pipe near the gas generating agent, and the safety valve is communicated with the inside of the buffer rod.

As a further solution of the present invention, one end of the fixed tube away from the opening is closed by an upper cover, the gas generating agent and the ignition module are fixedly connected to the upper cover, and the upper cover is cylindrical with an opening at one end.

As a further solution of the present invention, the ignition module is fixedly connected to the upper cover through a fixing net, the fixing net is provided with ventilation holes, the fixing net is fixed into the upper cover by interference fit, and the gas generating agent is block-shaped Pharmacy.

As a further solution of the present invention, the control unit includes an acceleration sensor, a power supply module and a microprocessor, the acceleration sensor is electrically connected with the power supply module and the microprocessor; the power supply module and the microprocessor are electrically connected with the ignition module connect.

As a further solution of the present invention, the connecting unit includes a first fixing block, a second fixing block and a second spring, and one end of the first fixing block is provided with a third flange sleeved on the first buffer unit, The other end of the first fixing block is provided with an installation groove, the first fixing block is fixedly connected to the first buffer unit by screws, a sliding rod is arranged in the installation groove, the second fixing block is a T-shaped block, and the second fixing block is a T-shaped block. The fixing block is sleeved on the sliding rod, the second spring is sleeved on the sliding rod, and there are two sets of second springs, and the two sets of second springs are respectively set on both sides of the second fixing block; the connecting unit is provided with There are multiple groups, and at least two groups of connection units are installed on each group of first buffer units; the hanger is fixedly connected to the first fixing block.

As a further solution of the present invention, it also includes a second buffer unit, the second buffer unit is arranged on the inner bottom of the car body; the second buffer unit includes a pedal, a fixed tube, a telescopic rod and a first spring, and the pedal is laid In the car body, the fixed tube is fixedly connected between the pedal and the bottom of the elevator, the fixed tube is a cylindrical shape with an opening at one end, one end of the telescopic rod is set in the fixed tube, and the other end is fixedly connected to the car body The bottom of the fixed pipe is provided with an inner flange, the end of the telescopic rod set in the fixed pipe is provided with an outer flange, and the first spring is sleeved on the pedal and the fixed pipe.

As a further solution of the present invention, the telescopic rod is further provided with a ventilation hole, and the ventilation hole penetrates the telescopic rod.

beneficial effect

To sum up, the present invention has the following beneficial effects compared with the prior art:

In the present invention, the arrangement of the first buffer unit enables the elevator to play a buffering role when the elevator stalls and falls, thereby improving the safety performance of the elevator.

The present invention can also play a buffering role during operation, thereby improving the experience of passengers riding the elevator.

Description of drawings

FIG. 1 is a schematic structural diagram of an elevator car damping device.

FIG. 2 is a partial enlarged view of I in FIG. 1 .

FIG. 3 is a partial enlarged view of II in FIG. 1 .

FIG. 4 is a schematic structural diagram of a telescopic rod in an elevator car damping device.

Reference numerals: 1-car body, 2-first buffer unit, 21-fixing pipe, 22-buffer rod, 23-gas generating agent, 24-ignition module, 25-upper cover, 26-safety valve, 27- Fixed net, 28-foot pad, 3-second buffer unit, 31-pedal, 32-fixed tube, 33- telescopic rod, 34-first spring, 4-control unit, 5-connecting unit, 51-first fixing Block, 52-Second fixed block, 53-Sliding rod, 54-Second spring, 6-Hanger.

Embodiments of the present invention

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. The embodiments of the present invention, and all other embodiments obtained by those of ordinary skill in the art without creative work, fall within the protection scope of the present invention.

Example 1

As shown in Figures 1 to 3, a shock absorption device for an elevator car includes a car body 1 and a hanger 6 arranged on the upper part of the car body 1, and the hanger 6 is used to connect the elevator rope;

The first buffer unit 2, the first buffer unit 2 is used to buffer the elevator when the elevator stalls and falls, and the first buffer unit 2 includes a fixed pipe 21, a buffer rod 22, a gas generating agent 23 and an ignition Module 24, the fixed tube 21 is a cylindrical shape with an opening at one end, an inner stop ring is set at the mouth of the fixed tube 21, the buffer rod 22 is set in the fixed tube 21, and the buffer rod 22 is set in the fixed tube 21. A piston is provided on one end, the gas generating agent 23 is fixedly connected to the closed end of the fixed tube 21, and the ignition module 24 is arranged inside the gas generating agent 23. After the ignition module 24 ignites the gas generating agent 23, the gas generating agent 23 generates a large amount of gas and generates a large amount of gas. Push out the buffer rod 22; a safety valve 26 is fixedly connected to the fixed pipe 21 near the gas generating agent 23, and the safety valve 26 is communicated with the interior of the buffer rod 22;

Further, the end of the fixing tube 21 away from the opening is closed by the upper cover 25, the gas generating agent 23 and the ignition module 24 are fixedly connected to the upper cover 25, and the upper cover 25 is a cylindrical shape with an opening at one end. ;

In some examples, the fixing tube 21 is provided with a first flange, the mouth of the upper cover 25 is provided with a second flange, the first flange and the second flange are connected by bolts, and the first flange is A sealing gasket is arranged between the flange and the second flange, and the upper cover 25 is arranged to facilitate the replacement of the gas generating agent 23 during maintenance;

Still further, in order to fix the ignition module 24 to the upper cover 25, the ignition module 24 is fixedly connected to the upper cover 25 through the fixing net 27, the fixing net 27 is provided with ventilation holes, and the fixing net 27 passes through the interference fit. Fitted and fixed in the upper cover 25, the gas generating agent 23 is a block medicine;

Preferably, the end of the buffer rod 22 away from the fixing rod 21 is further provided with a foot pad 28;

For the gas generating agent 23 and the ignition module 24, reference can be made to automobile airbags in the prior art;

The first buffer units 2 are provided with four groups, and the first buffer units 2 are arranged at the four corners of the car body 1;

a control unit 4, the control unit 4 is used to detect the stall state of the elevator and control the ignition of the gas generating agent 23;

The control unit 4 includes an acceleration sensor, a power supply module and a microprocessor, and the acceleration sensor is electrically connected with the power supply module and the microprocessor; the power supply module and the microprocessor are electrically connected with the ignition module 24;

When the elevator stalls and falls, the acceleration of the elevator exceeds the preset value, the acceleration sensor transmits the detected acceleration value to the microprocessor, the microprocessor judges that the car body 1 is in the stall and falling state, and the microprocessor controls the ignition module 24 to ignite, The gas generating agent 23 generates a large amount of gas and can push out the buffer rod 22. When the car body 1 falls to the ground, the buffer rod 22 touches the ground and slides into the fixed pipe 21. The gas pressure in the fixed pipe 21 increases and exceeds the threshold value. The safety valve 26 Open, the gas in the fixed pipe 21 is slowly ejected from the safety valve 26, so that the gas in the fixed pipe 21 acts as a buffer, thereby preventing the speed of the car body 1 from being too large when the elevator stalls and falls;

The connecting unit 5 plays a buffering role, and the connecting unit 5 is used to connect the car body 1 and the first buffer unit 2, and the connecting unit 5 is connected to the car body 1, the first buffer unit 2 and the suspension unit 2. The frame 6 is fixedly connected;

The connecting unit 5 includes a first fixing block 51, a second fixing block 52 and a second spring 54. One end of the first fixing block 51 is provided with a third flange sleeved on the first buffer unit 2, so The other end of the first fixing block 51 is provided with an installation groove, the first fixing block 51 is fixedly connected to the first buffer unit 2 by screws, a sliding rod 53 is arranged in the installation groove, and the second fixing block 52 is T-shaped The second fixed block 52 is sleeved on the sliding rod 53, the second spring 54 is sleeved on the sliding rod 53, and the second spring 54 is provided with two groups, and the two groups of second springs 54 are respectively provided on the second fixed block 52, so that the second fixing block 52 can slide in the first fixing block 51, so that the connecting unit 5 can play a shock absorbing role, the connecting unit 5 is provided with multiple groups, and each group of the first buffer At least two groups of connecting units 5 are installed on the unit 2 ; the hanger 6 is fixedly connected to the first fixing block 51 .

Example 2

The first buffer unit 2, the first buffer unit 2 is used for buffering the elevator when the elevator stalls and falls;

As another embodiment of the present invention, it further includes a second buffer unit 3, the second buffer unit 3 is provided with the inner bottom of the car body 1, and the second buffer unit 3 is used for further shock absorption;

As shown in FIG. 3 , the second buffer unit 3 includes a pedal 31 , a fixed pipe 32 , a telescopic rod 33 and a first spring 34 , the pedal 31 is laid in the car body 1 , and the fixed pipe 32 is fixedly connected to Between the pedal 31 and the bottom of the elevator, the fixed pipe 32 is a cylindrical shape with an opening at one end, one end of the telescopic rod 33 is set in the fixed pipe 32, and the other end is fixedly connected to the bottom of the car body 1. The mouth is provided with an inner flange, and one end of the telescopic rod 33 arranged in the fixed tube 32 is provided with an outer flange, and the first spring 34 is sleeved on the pedal 31 and the fixed tube 32;

As shown in FIG. 4 , the telescopic rod 33 is further provided with a ventilation hole, and the ventilation hole penetrates the telescopic rod 33; It can play a damping role when returning to its original state;

Other structures in this embodiment are the same as those in Embodiment 1.

To sum up, the working principle of the present invention is:

When the elevator ascends or descends at an accelerated rate, both the first spring 34 and the second spring 54 can absorb vibrations to prevent the elevator from generating vibrations during running.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims

A damping device for an elevator car, comprising a car body (1) and a hanger (6) arranged on the upper part of the car body (1), characterized in that it further comprises:

a first buffer unit (2), the first buffer unit (2) is used for buffering the elevator when the elevator stalls and falls;

a control unit (4), the control unit (4) is used to detect the stall state of the elevator and control the operation of the first buffer unit (2);

A connection unit (5), the connection unit (5) plays a buffering role, and the connection unit (5) is used for connecting the car body (1) and the first buffer unit (2), and the connection unit (5) is connected with The car body (1), the first buffer unit (2) and the hanger (6) are fixedly connected.
The elevator car damping device according to claim 1, characterized in that, the first buffer unit (2) comprises a fixed pipe (21), a buffer rod (22), a gas generating agent (23) and an ignition module ( 24), the fixing pipe (21) is a cylindrical shape with an opening at one end, an inner stop ring is arranged at the mouth of the fixing pipe (21), and the buffer rod (22) is arranged in the fixing pipe (21). (22) A piston is arranged on one end of the fixed pipe (21), the gas generating agent (23) is fixedly connected to the closed end of the fixed pipe (21), and the ignition module (24) is arranged inside the gas generating agent (23) , after the ignition module (24) ignites the gas generating agent (23), the gas generating agent (23) generates a large amount of gas and pushes out the buffer rod (22); the fixed pipe (21) is fixed near the gas generating agent (23) A safety valve (26) is connected, and the safety valve (26) communicates with the inside of the buffer rod (22).
The elevator car damping device according to claim 2, characterized in that, one end of the fixing pipe (21) away from the opening is closed by an upper cover (25), the gas generating agent (23) and the ignition module (24) ) are fixedly connected to the upper cover (25), and the upper cover (25) is cylindrical with an opening at one end.
The vibration damping device for an elevator car according to claim 3, wherein the ignition module (24) is fixedly connected to the upper cover (25) through a fixing net (27), and the fixing net (27) is provided on the upper cover (25). There are ventilation holes, the fixing net (27) is fixed into the upper cover (25) by interference fit, and the gas generating agent (23) is a block medicine.
The elevator car damping device according to claim 2, characterized in that the control unit (4) comprises an acceleration sensor, a power supply module and a microprocessor, and the acceleration sensor is electrically connected to the power supply module and the microprocessor ; The power supply module and the microprocessor are electrically connected with the ignition module (24).
The vibration damping device for an elevator car according to claim 1, characterized in that, the connecting unit (5) comprises a first fixing block (51), a second fixing block (52) and a second spring (54), wherein One end of the first fixing block (51) is provided with a third flange sleeved on the first buffer unit (2), the other end of the first fixing block (51) is provided with a mounting groove, and the first fixing block (51) is fixedly connected to the first buffer unit (2) by screws, a sliding rod (53) is arranged in the installation groove, the second fixing block (52) is a T-shaped block, and the second fixing block (52) is sleeved Set on the sliding rod (53), the second spring (54) is sleeved on the sliding rod (53), and the second spring (54) is provided with two sets, and the two sets of second springs (54) are respectively set on the second spring (54). the two sides of the fixing block (52); the connecting unit (5) is provided with multiple groups, and at least two connecting units (5) are installed on each group of the first buffer unit (2); the hanger (6) It is fixedly connected to the first fixing block (51).
The vibration damping device for an elevator car according to any one of claims 1-6, characterized in that it further comprises a second buffer unit (3), the second buffer unit (3) being arranged in the car body (1) Bottom; the second buffer unit (3) includes a pedal (31), a fixed tube (32), a telescopic rod (33) and a first spring (34), the pedal (31) is laid on the car body (1) Inside, the fixed pipe (32) is fixedly connected between the pedal (31) and the bottom of the elevator, the fixed pipe (32) is cylindrical with an opening at one end, and one end of the telescopic rod (33) is set on the fixed pipe (32). 32), the other end is fixedly connected to the bottom of the car body (1), the mouth of the fixed pipe (32) is provided with an inner flange, and one end of the telescopic rod (33) set in the fixed pipe (32) is provided with an outer flange. A flange, the first spring (34) is sleeved on the pedal (31) and the fixing tube (32).
The shock absorbing device for an elevator car according to claim 7, characterized in that, the telescopic rod (33) is further provided with a ventilation hole, and the ventilation hole penetrates the telescopic rod (33).