CN104590968B

CN104590968B - Reduction damp type safe elevator system

Info

Publication number: CN104590968B
Application number: CN201410707884.4A
Authority: CN
Inventors: 徐培龙; 叶敏; 徐建; 刘启帆
Original assignee: CHONGQING HEHANG TECHNOLOGY CO LTD
Current assignee: ZHANGJIAGANG OUWEI AUTOMATION RESEARCH AND DEVELOPMENT Co.,Ltd.
Priority date: 2014-11-30
Filing date: 2014-11-30
Publication date: 2017-04-05
Anticipated expiration: 2034-11-30
Also published as: CN104590968A

Abstract

The invention discloses a kind of reduction damp type safe elevator system, including elevator car and buffering assembly, buffering assembly includes Buffer Unit and reduction damper assembly；Buffer Unit is used to prevent elevator car rigid touch bottom；The piston rod that reduction damper assembly is included cylinder body, damping piston and is fixedly connected with damping piston, piston rod are engaged between rebound stroke with Buffer Unit after Buffer Unit is by elevator car compression, and reduction damping is formed to Buffer Unit by damping piston；The present invention bottoms out buffering in car and terminates the speed that restriction resilience is played a part of in the engagement of pre reduction damper assembly, presence due to reducing damper assembly, the cushion stroke and coefficient of elasticity of Buffer Unit can also be increased, thus the realization buffering that more can be relaxed, quick resilience is avoided using reduction damping after buffering, it is ensured that final buffering effect；Avoid because buffer spring coefficient of elasticity is excessive or the long and caused secondary security incident for causing that rebounds of compression travel.

Description

Reduction damp type safe elevator system

Technical field

The present invention relates to a kind of special safety equipment system, extraordinary to be related to the security system that a kind of cage type elevator is bottomed out.

Background technology

Cage type elevator is a kind of vehicles for solving vertical transport, is closely connected with daily life；It is existing Cage type elevator is mainly made up of traction machine, switch board, car, guide rail etc., realizes more rapidly uplink and downlink；In order to realize Uplink and downlink simultaneously install relevant device, building or other using where cage type elevator can type of construction elevators hoistway, with reality Existing trouble-free operation.

By mechanical force traction, the uplink and downlink of cage type elevator typically realize that structure is complex, due to use environment, The problems such as cycle and ageing equipment, quality, drop in the case of causing lift car without constraint or finite constraint, tool There is more serious safety problem.In prior art, in order to solve by car rigid touch bottom (directly dropping to shaft bottom) to taking advantage of Seated user causes serious danger, arranges buffer unit in shaft bottom；For express elevator buffer unit is hydraulic cushion, for Slower elevators then typically using buffer spring structure, and so consider mainly the coefficient of elasticity of spring, stroke and car it Between relation, if elastic force is excessive, larger bounce can be carried out, cause bigger injury, therefore, express elevator then can not Using the spring that coefficient of elasticity is larger；And in fact, for express elevator, due to speed, and action of gravity is added, liquid The buffering of pressure buffering has more slow, can still produce more serious rigid collision, so as to cause the accident.

Accordingly, it would be desirable to be improved to existing elevator cushion construction, it is suitable to all cage type elevators and uses, in elevator accident When bottoming out, ensure that gentle, gradual compression buffering and return, it is to avoid because the coefficient of elasticity of buffer spring it is excessive or The long and caused secondary security incident for causing that rebounds of compression travel.

The content of the invention

In view of this, it is an object of the invention to provide a kind of reduction damp type safe elevator system, is suitable to all cage type elevators Use, when elevator accident is bottomed out, ensure that gentle, gradual compression buffering and return, it is to avoid because buffer spring Coefficient of elasticity is excessive or the long and caused secondary security incident for causing that rebounds of compression travel.

The reduction damp type safe elevator system of the present invention, including elevator car and buffering assembly, the buffering assembly bag Include Buffer Unit and reduction damper assembly；

The Buffer Unit is fixedly installed on elevator bottom for preventing elevator car rigid touch bottom；

The piston rod that the reduction damper assembly is included cylinder body, damping piston and is fixedly connected with damping piston, the work Stopper rod is engaged between rebound stroke with Buffer Unit after Buffer Unit is by elevator car compression, by damping piston to buffering group Part forms reduction damping.

Further, buffer spring on the basis of the Buffer Unit includes being arranged at and it is supported in slow at the top of buffer spring Punching, the buffer board is just to elevator car bottom；

Further, it is relative with piston rod that fairlead and the reduction resistance for engaging with piston rod are provided with the buffer board Buddhist nun's power fastener, the fairlead by can it is axially directed in the way of be coated at piston rod, the reduction damping force fastener is slow Rush spring and be compressed between rebound stroke by elevator car and engage with piston rod, the piston normality is close to cylinder base；

Further, reduce damping force fastener be by can along piston rod radially wobble in the way of be articulated with connecing on buffer board Close bar, engagement bar lower end is provided with the engagement boss for extending internally, be provided with the piston rod for after engagement bar is descending with connect Close the engagement groove that boss forms hasp；The fairlead is provided with the groove that at least can be used for radial through engagement boss；

Further, engage bar and pass through gravity vertically downward, engagement boss extends inward into fairlead extended distance to be made to connect Close boss inner end and can extend into engagement groove；It is used for by the groove for engaging boss in the tangential of fairlead on the fairlead To engaging boss shape into spacing.

Further, the engagement boss lower surface is the acclivitous inclined-plane of ecto-entad, and the piston rod top is cone Platform structure；

Further, the engagement groove is the cannelure around piston rod；

Further, the axial location of boss is engaged when the lower edge of the engagement groove is less than buffer spring limited compression.

Beneficial effects of the present invention：The reduction damp type safe elevator system of the present invention, using buffering spring component and also The structure that former damper assembly combines, bottoms out buffering in car and terminates the speed that restriction resilience is played in the engagement of pre reduction damper assembly Effect, it is ensured that gentle resilience, and realize downstream buffer using Buffer Unit, the presence due to reducing damper assembly, may be used also The cushion stroke and coefficient of elasticity of increase Buffer Unit, thus the realization buffering that more can be relaxed, using reduction damping after buffering Avoid quick resilience, it is ensured that final buffering effect；Therefore, the structure is suitable to all cage type elevators uses, touches in elevator accident During bottom, gentle, gradual compression buffering and return are ensure that, it is to avoid because the coefficient of elasticity of buffer spring is excessive or pressure The long and caused secondary security incident for causing that rebounds of indention journey.

Description of the drawings

The invention will be further described with reference to the accompanying drawings and examples.

Fig. 1 is the structural representation of the present invention.

Specific embodiment

Fig. 1 is the structural representation of the present invention, as shown in the figure：The reduction damp type safe elevator system of the present embodiment, bag Elevator car 1 and buffering assembly are included, the buffering assembly includes Buffer Unit and reduction damper assembly；

The Buffer Unit is fixedly installed on elevator bottom for preventing 1 rigid touch bottom of elevator car；

The piston rod 12 that the reduction damper assembly is included cylinder body 9, damping piston 10 and is fixedly connected with damping piston 10, The piston rod 12 is engaged between rebound stroke with Buffer Unit after Buffer Unit is compressed by elevator car 1, is lived by damping 10 pairs of Buffer Units of plug form reduction damping, and reduction damping refers to form damping when the reduction after being compressed deforms；Piston The mode that bar 12 is engaged with Buffer Unit can be using mechanical automatic locking button, electromagnetism engagement etc. mode, and certainly, electromagnetism engagement is needed Data be acquired and be automatically controlled, be will not be described here；As illustrated, having damping hole on damping piston 10 The damping liquid such as fluid or magnetic flow liquid is full of in (being sized as needed and quantity), cylinder body, piston is used in outer masterpiece During lower motion, damping liquid is only passed through by damping hole, stroke damping；Buffer Unit is typically realized using spring；As illustrated, Among cylinder body 9 is embedded in basis 8, top is sealed by cylinder cap 11, and cylinder cap 11 is connected by the sealing of foundation bolt 7 being embedded on basis 8 It is connected to cylinder body.

In the present embodiment, the Buffer Unit include being arranged on the basis of buffer spring 3 and be supported in buffer spring top The buffer board 15 in portion, the buffer board 15 is just to elevator car bottom；Basis 8 refers to the base of the installation for Buffer Unit Plinth；As illustrated, being additionally provided with the basis of for installing the spring base 6 of buffer spring 3, can be used to adjust the maximum pressure of spring 3 Indention journey and limited compression position；The quantity of buffer spring 3 can be installed as needed, and generally more than three circumferentially square To being uniformly arranged；Can be installed with being merged into capable welding using lead column at the top of buffer board 15 and buffer spring 3, it is to avoid buffering is anti- Occur to depart from during bullet.

In the present embodiment, it is relative with piston rod 12 be provided with the buffer board 15 fairlead 4 and for piston rod 12 The reduction damping force fastener 14 of engagement, the fairlead 4 by can it is axially directed in the way of be coated at piston rod 12, the reduction Damping force fastener is compressed between rebound stroke by elevator car 1 in buffer spring 3 and is engaged with piston rod 12, the piston 10 Normality is close to 9 bottom of cylinder body；The structure can ensure that buffer board 15 stablizes descending in buffer spring 3 after being compressed, and ensure also Former damping force fastener 14 is aligned with piston rod 12 and is engaged.

In the present embodiment, reduction damping force fastener 14 be by can along piston rod 12 radially wobble in the way of be articulated with buffering Engagement bar on plate 15, engagement bar lower end are provided with the engagement boss 13 for extending internally, and are provided with for connecing on the piston rod 12 With the engagement groove 5 for engaging the formation hasp of boss 13 after conjunction bar is descending；The fairlead 4 be provided with least can be used for radial through The groove 2 of engagement boss 13；Buffer board overcomes the elastic force compression spring of buffer spring 3 in the presence of lift car whereabouts, When setting position is fallen under lift car 1, engagement boss 13 is embedded engages groove 5, and now piston rod 12 is contacted with engagement boss 13 Position have and incline, to produce radially outer component, at engagement boss set back and make to connect after making engagement bar outside Close the embedded engagement groove of boss；The setpoint distance normally close in the limited compression position of buffer spring, to give full play to spring Buffering, extend compression travel.

In the present embodiment, engagement bar by gravity vertically downward, engagement boss 13 extend inward into fairlead and extension away from Engagement groove 5 be can extend into from 13 inner end of engagement boss is made；It is used for leading by engaging the groove of boss on the fairlead 4 To the tangential to engaging boss shape into spacing, the tangential direction for tangentially referring to along the circumferential direction of fairlead 4 of set 4；Structure letter It is single and easy for installation, and ensure the engagement between engagement boss 13 and engagement groove 5 and separate, it is to avoid there is deviation, particularly Reduction damping process upon engagement, prevents from disengaging so as to avoid losing damping force.

In the present embodiment, engagement boss 13 lower surface is the acclivitous inclined-plane of ecto-entad, the piston rod 12 Top is frustum structure；The structure that frustum structure and inclined-plane combine to ensure that and produce radially outer point in the moment of contact Power, it is to avoid interference occurs, so that engaging process is smooth.

In the present embodiment, the engagement groove 5 is the cannelure around piston rod；Processing is simply and readily engaged, it is to avoid Because bonding station is not corresponded to caused by the rotation of piston rod 12.

In the present embodiment, the lower edge of the engagement groove 5 engages the axle of boss 13 when being less than 3 limited compression of buffer spring To position, it is to avoid engagement boss 13 exceedes engagement groove 5 during descending, prevents the rigid contact that there is no need, so as to keep away Exempt from the damage of generation part.

Finally illustrate, above example is only unrestricted to illustrate technical scheme, although with reference to compared with Good embodiment has been described in detail to the present invention, it will be understood by those within the art that, can be to the skill of the present invention Art scheme is modified or equivalent, and without deviating from the objective and scope of technical solution of the present invention, which all should be covered at this In the middle of the right of invention.

Claims

It is 1. a kind of to reduce damp type safe elevator system, it is characterised in that：Including elevator car and buffering assembly, the buffering is total Into including Buffer Unit and reduction damper assembly；

The Buffer Unit is fixedly installed on elevator bottom for preventing elevator car rigid touch bottom；

The Buffer Unit include being arranged on the basis of buffer spring and the buffer board that is supported at the top of buffer spring, it is described slow Punching is just to elevator car bottom；

The piston rod that the reduction damper assembly is included cylinder body, damping piston and is fixedly connected with damping piston, the piston rod Engage between rebound stroke with Buffer Unit after Buffer Unit is by elevator car compression, by damping piston to Buffer Unit shape Into reduction damping；

It is relative with piston rod that fairlead and the reduction damping force fastener for engaging with piston rod are provided with the buffer board, The fairlead by can it is axially directed in the way of be coated at piston rod, the reduction damping force fastener is in buffer spring by elevator Envelope is compressed between rebound stroke and is engaged with piston rod, and the piston normality is close to cylinder base.
It is 2. according to claim 1 to reduce damp type safe elevator system, it is characterised in that：Reducing damping force fastener is By can along piston rod radially wobble in the way of be articulated with engagement bar on buffer board, engagement bar lower end is provided with the engagement for extending internally Boss, be provided with the piston rod for engagement bar it is descending after with engage boss formation hasp engagement groove；The guiding Put and be provided with the groove that at least can be used for radial through engagement boss.
It is 3. according to claim 2 to reduce damp type safe elevator system, it is characterised in that：Engagement bar is vertical by gravity Downwards, engagement boss extends inward into fairlead and extended distance makes engagement boss inner end can extend into engagement groove；It is described It is used on fairlead by the groove for engaging boss in the tangential to engaging boss shape into spacing of fairlead.
It is 4. according to claim 3 to reduce damp type safe elevator system, it is characterised in that：The engagement boss lower surface For the acclivitous inclined-plane of ecto-entad, the piston rod top is frustum structure.
It is 5. according to claim 3 to reduce damp type safe elevator system, it is characterised in that：The engagement groove is circular The cannelure of piston rod.
It is 6. according to claim 3 to reduce damp type safe elevator system, it is characterised in that：It is described to engage the following of groove Along less than the axial location that boss is engaged during buffer spring limited compression.