CN108946381A

CN108946381A - A kind of used during elevator falling Moulding Machine in Piston With Pneumatic Cushion buffer unit

Info

Publication number: CN108946381A
Application number: CN201811200206.3A
Authority: CN
Inventors: 张涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-10-16
Filing date: 2018-10-16
Publication date: 2018-12-07

Abstract

A kind of used during elevator falling Moulding Machine in Piston With Pneumatic Cushion buffer unit is broadly divided into two parts composition, i.e. piston body and buffer well.Piston body is mounted on lift car bottom, and shape is the approximate cylindrical structure of upper coarse and lower fine diameter gradually transition.Buffer well setting is the cylindrical deep-well of downward certain depth in elevator bottom.Its diameter is slightly thicker than piston body upper end diameter.One " spring or filling type " damper conventional at present is set again as auxiliary damping in buffer well bottom centre position.At buffer well edge suitable for reading, one internal diameter and the comparable elastic rubber shock absorbing ring of buffer well are set, for keeping the leakproofness at buffer well edge and accurate adjustment piston body and buffer well surrounding gap, also it can be used as last one of damping device, carriage falls finally to fall on after above twice buffering and come to a complete stop.The apparatus structure is simple, Maintenance free.The inertia that used during elevator falling just can be effectively buffered using air drag is offset it and lands impact force, increases its safety.The smooth injury avoided to the person of slowly slowing down, can more alleviate the sense of discomfort of tenesmus impact moment.

Description

A kind of used during elevator falling Moulding Machine in Piston With Pneumatic Cushion buffer unit

Technical field

The present invention relates to a kind of used during elevator falling shock absorption buffering mechanism, especially with the increased piston structure of cage bottom, The impact force of used during elevator falling is offset by air cushion.

Background technique

With the rapid development of our country's economy, real estate industry emerges rapidly, and the use of elevator is also more and more common.At present China's elevator yield and owning amount is high ranks first in the world.According to the data that State General Administration for Quality Supervision announces, by the end of the year 2015, China, more than 4,250,000, and is being increased every year with 20% or so speed with elevator quantity.At the same time, elevator in news Falling accident is also commonplace, and elevator safety problem has been increasingly becoming social concerns focus.Used during elevator falling is undoubtedly in elevator faults It is a kind of most dangerous situation, the impact force generated after falling is the most fatal to personal injury.If reducing injury most directly to do Method is exactly that damping device is arranged in bottom, to reduce the impact force of elevator tenesmus.

The elevator shock absorber that industry most generally uses at present is mostly " spring and filling type ", i.e., in elevator bottom Damping spring or filling type damper is arranged in the heart.When lift car falls, bottom impinges upon damper top, carriage first Continue whereabouts damper to be gradually compressed, elastic potential energy of damper gradually offsets the inertia of carriage whereabouts during this, reaches The purpose of deceleration buffer.The drawbacks of the method is: all wt all focuses on damper some when lift car falls, Wu Fafen Stress is dissipated, it is such as poor in the high level buffering effect that falls.Buffer distance is small, slows down too unexpected, can still cause centainly to injure to the person.

Summary of the invention

In order to overcome the problems, such as that the prior art exists, the present invention provides a kind of used during elevator falling Moulding Machine in Piston With Pneumatic Cushion buffer unit, should Apparatus structure is simple, Maintenance free.The inertia that used during elevator falling just can be effectively buffered using air drag offsets its landing impact Power increases its safety.The smooth injury avoided to the person of slowly slowing down, can more alleviate the sense of discomfort of tenesmus impact moment.

The scheme that the present invention solves prior art problem is: a kind of used during elevator falling Moulding Machine in Piston With Pneumatic Cushion buffer unit, main point For two parts composition, i.e. piston body and buffer well.Piston body is mounted on lift car bottom, shape be upper coarse and lower fine diameter gradually The approximate cylindrical structure of transition.Buffer well setting is the cylindrical deep-well of downward certain depth in elevator bottom.Its diameter It is slightly thicker than piston body upper end diameter.One is arranged again in buffer well bottom centre position, and conventional at present " spring is oil-filled Formula " damper is as auxiliary damping.At buffer well edge suitable for reading, one internal diameter and the comparable elastic rubber damping of buffer well are set Circle also can be used as last for keeping the leakproofness at buffer well edge and accurate adjustment piston body and buffer well surrounding gap Road damping device, carriage fall finally to fall on after above twice buffering and come to a complete stop.

The course of work is as follows: if elevator falls suddenly, when the piston body lower plane to bottom and cage bottom that will fall When will flush with buffer well elastic rubber shock absorbing ring suitable for reading, the air in buffer well is squeezed just from piston body and buffer well Between gap discharge, the air of discharge can generate positice ground effect not yet in buffer well during this, fall into piston body slow It rushes well and generates certain resistance to reduce its lower terminal-velocity record.Continue to fall with elevator, piston body more enters buffer well It is interior, since piston body is the approximate cylindrical structure of upper coarse and lower fine diameter gradually transition, the mistake in buffer well is progressed at it Cheng Zhong, the diameter of section at buffer well elastic rubber shock absorbing ring suitable for reading are gradually increased, between piston body and buffer well between Gap will gradually become smaller, and air discharge will be slower and slower, and the resistance for falling into buffer well generation to piston body will be gradually increased, Elevator falling speed will also slow down gradually until the inertia that elevator is fallen all offsets steady stop.

If fallen under the higher or overload situations of elevator tenesmus, leans on air cushion and be not enough to be completely counterbalanced by its whereabouts inertial time, if Conventional " the spring or filling type " damper set in buffer well bottom centre position starts working.Elevator by air cushion by Continue to fall there are also certain surplus energy after gradually buffering, piston body bottom starts to contact with conventional shock absorber top, and gradually reduces often Advise damper.The elastic potential energy of conventional shock absorber, which also acts on piston body simultaneously, at this time makes it further slow down, until elevator car Compartment bottom entirely falls within and comes to a complete stop on buffer well elastic rubber shock absorbing ring suitable for reading, and buffering course terminates.Personnel safety escape.

The beneficial effects of the present invention are: increasing the safety of elevator, structure is simple, Maintenance free, relative to conventional damping Device buffer deceleration is smooth, and it is big to absorb impact power, can reduce personnel's sense of discomfort.

Detailed description of the invention:

Fig. 1 is that elevator of the invention will fall schematic diagram.

Fig. 2 starts buffering schematic diagram for of the invention.

Fig. 3 is buffering middle section schematic diagram of the invention.

Fig. 4 is that buffering of the invention terminates schematic diagram.

Fig. 5 is (A-A) cross-sectional view of the invention.

Fig. 6 is lift car of the invention and piston body perspective view.

In Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6: 1. lift car, 2. elevator wall, 3. elastic rubber shock absorbing ring 4. 7. gap of piston body 5. buffer well, 6. conventional shock absorber, 8. air.

Specific embodiment:

Below in conjunction with Detailed description of the invention a specific embodiment of the invention: one kind shown in as shown in Figure 1, Figure 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 Used during elevator falling Moulding Machine in Piston With Pneumatic Cushion buffer unit is broadly divided into two parts composition, i.e. piston body 4 and buffer well 5.Piston body 4 is installed It is the upper coarse and lower fine cylindrical structure at certain taper in 1 bottom of lift car.The setting of buffer well 5 in elevator bottom, for The cylindrical deep-well of lower certain depth.Its diameter is slightly thicker than 4 upper end diameter of piston body.5 bottom centre position of buffer well again One " spring or filling type " conventional shock absorber 6 of setting is as auxiliary damping.It is arranged in one at the edge suitable for reading of buffer well 5 Diameter and the comparable elastic rubber shock absorbing ring 3 of buffer well 5, for keeping the leakproofness at 5 edge of buffer well and accurate adjustment piston body 4 With 5 surrounding gap of buffer well, last one of damping device also can be used as, lift car 1 is fallen after above twice buffering most It falls on and comes to a complete stop eventually.

The course of work is as follows: if elevator falls suddenly, when will fall to the piston body 4 of bottom and 1 bottom of lift car When lower plane will be flushed with the elastic rubber shock absorbing ring 3 suitable for reading of buffer well 5, the air 8 in buffer well 5 is squeezed just from piston Gap 7 between body 4 and buffer well 5 is discharged, and the air 8 of discharge can generate positice ground effect not yet in buffer well 5 during this, Buffer well 5 is fallen into piston body 4 and generates certain resistance to reduce its lower terminal-velocity record.Continue to fall with lift car 1, it is living Cock body 4 more enter buffer well 5 in, since piston body 4 is the upper coarse and lower fine cylindrical structure at certain taper, its gradually During in into buffer well 5, the diameter of section at the elastic rubber shock absorbing ring 3 suitable for reading of buffer well 5 is gradually increased, piston Gap 7 between body 4 and buffer well 5 will gradually become smaller, and the discharge of air 8 will be slower and slower, fall into buffer well to piston body 4 5 resistances generated will be gradually increased, and elevator falling speed will also slow down gradually until the inertia that elevator falls all is supported Disappear steady stopping.

If fallen under the higher or overload situations of elevator tenesmus, leans on air cushion and be not enough to be completely counterbalanced by its whereabouts inertial time, if " the spring or filling type " conventional shock absorber 6 set in 5 bottom centre position of buffer well starts working.Elevator passes through air cushion Continue to fall there are also certain surplus energy after gradually buffering, 4 bottom of piston body starts to contact with 6 top of conventional shock absorber, and gradually presses Contracting conventional shock absorber 6.The elastic potential energy of conventional shock absorber 6, which also acts on piston body 4 simultaneously, at this time makes it further slow down, until 1 bottom of lift car entirely falls within and comes to a complete stop on the elastic rubber shock absorbing ring 3 suitable for reading of buffer well 5, and buffering course terminates.Personnel safety is escaped It is raw.

Claims

1. a kind of used during elevator falling Moulding Machine in Piston With Pneumatic Cushion buffer unit, including piston body (4) and buffer well (5) and elastic rubber shock absorbing ring (3)；It is characterized by: the piston body (4) is mounted on the bottom of lift car (1), shape be upper coarse and lower fine diameter gradually The cylindrical structure of transition；Buffer well (5) setting is the cylindrical deep-well of downward certain depth in elevator bottom, Diameter is slightly thicker than the piston body (4) upper end diameter.

2. a kind of used during elevator falling Moulding Machine in Piston With Pneumatic Cushion buffer unit according to claim 1, it is characterised in that: shock absorption principle is When being inserted into buffer well (5) using the piston body (4), the piston body (4) section at plane on the buffer well (5) Diameter can be gradually increased, and the surrounding gap (7) of the piston body (4) and buffer well (5) will gradually become smaller, so the buffering The resistance that gradually slowly discharge is formed of surrounding gap (7) of well (5) inner air (8) through the piston body (4) and buffer well (5) Power and the internal surplus air (8) of the buffer well (5) are squeezed and the principle for the air cushion that formation gradually weakens slowly are discharged, to delay The inertia for rushing used during elevator falling offsets it and lands impact force.

3. a kind of used during elevator falling Moulding Machine in Piston With Pneumatic Cushion buffer unit according to claim 1, it is characterised in that: in the buffering Internal diameter and described in the comparable elastic rubber shock absorbing ring (3) of buffer well (5) is arranged in well (5) edge suitable for reading, for keeping It states the leakproofness at buffer well (5) edge and accurately adjusts the gap of the piston body (4) and buffer well (5) surrounding, also can be used as Last one of damping device, lift car (1) tenesmus is finally fallen on after air cushion buffers comes to a complete stop.

4. a kind of used during elevator falling Moulding Machine in Piston With Pneumatic Cushion buffer unit according to claim 1, it is characterised in that: the buffer well (5) " spring or filling type " conventional shock absorber (6) is arranged as auxiliary damping in bottom centre position.