阅读说明：本技术 导向装置及电梯门系统 (Guide device and elevator door system ) 是由 童正国 甘靖戈 于 2018-06-19 设计创作，主要内容包括：本发明公开了一种导向装置,包括引导结构和导向结构,所述导向结构包括导向部,所述导向部在引导结构内的引导槽内做水平滑动；当所述导向结构受到外力作用时,所述导向部向引导槽一侧偏移因而与引导槽相接触而产生摩擦力,所述导向部和引导槽之间产生互斥的磁力以减弱或消除因接触力产生的摩擦力；磁力控制组件,其包括外力传感部件和磁力控制部件,所述外力传感部件将外部压力信息传送至磁力控制部件,磁力控制部件根据所述移动部件内外侧的压力差控制磁力的大小、位置或方向。本发明可有效减小因接触压力产生的摩擦力,可使开关门的工作更为流畅,同时减小门板滑块的磨损,且结构简单,成本低,控制方便。(The invention discloses a guide device, which comprises a guide structure and a guide structure, wherein the guide structure comprises a guide part, and the guide part horizontally slides in a guide groove in the guide structure; when the guide structure is acted by external force, the guide part deviates to one side of the guide groove and is contacted with the guide groove to generate friction force, and mutually exclusive magnetic force is generated between the guide part and the guide groove to weaken or eliminate the friction force generated by the contact force; and the magnetic control assembly comprises an external force sensing part and a magnetic control part, wherein the external force sensing part transmits external pressure information to the magnetic control part, and the magnetic control part controls the size, the position or the direction of the magnetic force according to the pressure difference between the inside and the outside of the moving part. The invention can effectively reduce the friction force generated by the contact pressure, can make the work of opening and closing the door smoother, simultaneously reduces the abrasion of the door plate sliding block, and has simple structure, low cost and convenient control.)

1. A guide device, comprising:

a guide structure fixedly connected to the stationary member, the guide structure including a guide groove;

the guide structure is fixedly connected to the moving component and comprises a guide part, and the guide part horizontally slides in a guide groove in the guide structure; when the guide structure is acted by external force, the guide part deviates to one side of the guide groove and is contacted with the guide groove to generate friction force, and mutually exclusive magnetic force is generated between the guide part and the guide groove to weaken or eliminate the friction force generated by the contact force;

a magnetic force control assembly including an external force sensing part transmitting external pressure information to a magnetic force control part controlling a magnitude, position or direction of a magnetic force according to a pressure difference inside and outside the moving part;

the magnetic force control assembly comprises:

a sensing part for sensing an external force;

the first end of the deformation part is connected with the sensing part and is used for receiving the external force of the sensing part and generating deformation;

a first end of the control connecting part is connected with a second end of the deformation part, and a second end of the control connecting part is connected with the guide structure;

a deformation recovery section for recovering deformation;

the magnetic force control assembly changes the distance between the guide device and the guide device through the deformation of the deformation part so as to control the magnitude of the magnetic force;

the magnetic force control assembly comprises a deformable tubular component, a connecting rod sliding block assembly and an elastic component, wherein,

the sensing part is one end with a large opening of the deformable tubular component, and the other end of the deformable tubular component is connected with the first head end of the connecting rod sliding block assembly;

the deformation part is a connecting rod sliding block component, and the tail end of the connecting rod sliding block component is fixedly connected with the guide structure;

the elastic component is a deformation recovery part, one end of the elastic component is connected with the moving component, and the other end of the elastic component is connected with the second end of the connecting rod assembly.

2. The guide device of claim 1, wherein the stationary member is a sill, the guide structure is a first magnet disposed within the sill, and the guide portion is a second magnet, the first magnet being opposite in magnetic polarity to the second magnet.

3. The guide device of claim 1, wherein the moving member is an elevator door, and the guide structure further comprises a guide plate fixedly coupled to the guide portion.

4. The guiding device as claimed in claim 2, wherein the first magnet is plural and distributed along the length direction of the sill; the number and the position of the second magnets are matched with those of the first magnets.

5. The guide device of claim 2, wherein the first magnet is one and extends along the length of the sill to cover the entire sill, and the second magnets are matched in number and position to the first magnets.

6. The guide device of claim 1, wherein the external force is air pressure.

7. The guide device of claim 1, wherein the magnetic control assembly comprises a coil, an inductive current sensor, and a controller, wherein:

a coil wound around the second magnet, the coil including an exit,

the induction current sensor is connected with the leading-out end and used for capturing the change of current and sending an instruction to the controller;

the controller controls the voltage on the coil according to the instruction of the induction current sensor so as to change the magnetic force magnitude or direction.

8. The guide device of claim 1, wherein the magnetic control assembly comprises a coil, a pressure sensor, and a controller, wherein:

a coil is wound on the second magnet, and the coil comprises a leading-out end;

the pressure sensor transmits a pressure signal to the controller, and the pressure signal is converted into current on the second magnet by the controller;

the controller is connected with the leading-out end and changes the magnitude and the direction of the magnetic force by changing the magnitude and the direction of the current in the coil.

9. An elevator door system provided with a guide arrangement according to any one of claims 1-8, comprising landing door panels and a threshold, said guide arrangement being mounted below the landing door panels and said guide arrangement being mounted within the threshold.

Technical Field

The invention relates to the field of elevators, in particular to a guide device. The invention also relates to an elevator door system.

Background

Most elevator door systems use elevator car doors (car doors) to drive landing doors (landing doors). In order to ensure basic safety, the landing door is generally provided with an automatic door closing device driven by a spring or a weight, and the automatic door closing device can drive the landing door to close when the landing door is not driven by the car door. The automatic door closing device also assists the car door to drive the landing door to close together. One side of the landing door faces the landing door opening, the other side of the landing door faces a gap between the landing door and the car door, and the landing door is easily influenced by airflow in the running process.

In high-rise buildings, due to the temperature difference between the inside and outside of the building and the height of the building, air flows along vertical channels in the building structure, creating a so-called chimney effect. Especially in winter, because the indoor temperature is higher, the air density is lower, the outdoor temperature near the ground is low, the air density is high, the pressure is high, the air flows from the outdoor to the indoor, and the indoor air flows upwards along the elevator shaft. In the lower part of the shaft, airflow flows from the landing opening to the shaft and pushes the landing door to the inside of the shaft; in the upper part of the shaft, airflow flows from the inside of the shaft to the landing side, and pushes the landing door to the landing doorway. In the process of closing the door of the elevator, air generates great pressure on the landing door, so that great friction is generated on the door plate guide device, and the landing door cannot be normally closed in severe cases.

In order to enable the landing door to be normally closed, it is conceivable to directly increase the force for closing the door or the kinetic energy of the door panel. When the door closing force is high, the door panel may cause injury to the passenger if accidentally hitting the passenger during the closing process. For passenger protection, the maximum value of the door-closing force is generally specified in elevator standards of various countries, such as the Chinese standard GB7588-2003 and the European standard EN81-20:2014, wherein the maximum door-closing force is 150N, and the U.S. ASME 17.1:2016, wherein the maximum door-closing force is 135N. Furthermore, the method of using the kinetic energy of the door panel is also limited, and the maximum value of the kinetic energy of the door panel is also limited in the above standard. Therefore, the method of simply increasing the door closing force or the kinetic energy of the door panel to close the landing door is limited in practical use.

Another strategy is to add a roller structure in the door panel guide structure to replace the traditional slider structure, and when the door panel is pushed to one side by air flow, the roller with smaller friction coefficient can effectively reduce the friction force. Considering that the width of the surface opening of the sliding groove of the landing sill cannot be too large (mainly for the safety and convenience of passengers walking), the roller and the supporting structure thereof need to occupy a large space, the structure of the landing sill becomes complex, and the comprehensive cost is high.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a guide device, which can effectively reduce the friction force generated by the contact pressure, can make the work of opening and closing the door smoother, simultaneously reduces the abrasion of a door plate sliding block, and has the advantages of simple structure, low cost and convenient control.

To solve the above technical problem, the present invention provides a guide device, including: a guide structure fixedly connected to the stationary member, the guide structure including a guide groove;

the guide structure is fixedly connected to the moving component and comprises a guide part, and the guide part horizontally slides in a guide groove in the guide structure; when the guide structure is acted by external force, the guide part deviates to one side of the guide groove and is contacted with the guide groove to generate friction force, and mutually exclusive magnetic force is generated between the guide part and the guide groove to weaken or eliminate the friction force generated by the contact force;

a magnetic force control assembly including an external force sensing part transmitting external pressure information to a magnetic force control part controlling a magnitude, position or direction of a magnetic force according to a pressure difference inside and outside the moving part;

the magnetic force control assembly comprises:

a sensing part for sensing an external force;

the first end of the deformation part is connected with the sensing part and is used for receiving the external force of the sensing part and generating deformation;

a first end of the control connecting part is connected with a second end of the deformation part, and a second end of the control connecting part is connected with the guide structure;

a deformation recovery section for recovering deformation;

the magnetic force control assembly changes the distance between the guide device and the guide device through the deformation of the deformation part so as to control the magnitude of the magnetic force;

the magnetic force control assembly comprises a deformable tubular component, a connecting rod sliding block assembly and an elastic component, wherein,

the sensing part is one end with a large opening of the deformable tubular component, and the other end of the deformable tubular component is connected with the first head end of the connecting rod sliding block assembly;

the deformation part is a connecting rod sliding block component, and the tail end of the connecting rod sliding block component is fixedly connected with the guide structure;

the elastic component is a deformation recovery part, one end of the elastic component is connected with the moving component, and the other end of the elastic component is connected with the second end of the connecting rod assembly.

Preferably, the stationary member is a sill, the guide structure is a first magnet disposed in the sill, and the guide portion is a second magnet having opposite magnetic poles.

Preferably, the moving member is an elevator door, and the guide structure further includes a guide plate fixedly connected to the guide portion.

Preferably, the first magnets are distributed along the length direction of the sill; the number and the position of the second magnets are matched with those of the first magnets.

Preferably, the number and the position of the first magnet are matched with those of the second magnet.

Preferably, the external force is air pressure.

Preferably, the magnetic control assembly comprises a coil, an induced current sensor and a controller, wherein:

a coil wound around the second magnet, the coil including an exit,

the induction current sensor is connected with the leading-out end and used for capturing the change of current and sending an instruction to the controller;

the controller controls the voltage on the coil according to the instruction of the induction current sensor so as to change the magnetic force magnitude or direction.

Preferably, the magnetic control assembly comprises a coil, a pressure sensor and a controller, wherein:

a coil is wound on the second magnet, and the coil comprises a leading-out end;

the pressure sensor transmits a pressure signal to the controller, and the pressure signal is converted into current on the second magnet by the controller;

the controller is connected with the leading-out end and changes the magnitude and the direction of the magnetic force by changing the magnitude and the direction of the current in the coil.

The invention also provides an elevator door system with the guide device, which comprises a landing door plate and a door sill, wherein the guide structure is arranged below the landing door plate, and the guide structure is arranged in the door sill.