阅读说明：本技术 智能升降机楼层防护门开关联动装置及其控制方法 (Intelligent elevator floor protection door switch linkage device and control method thereof ) 是由 卢新星 叶洲鹏 徐晨瀚 于 2021-08-30 设计创作，主要内容包括：本发明公开了一种智能升降机楼层防护门开关联动装置及其控制方法,可以实现还是升降机与防护门的自动联动控制,结构简单,安全性好,其技术方案要点是包括：升降机,包括机门和用于驱动机门启闭的驱动单元；防护门,安装于对应楼层,防护门包括门框、与门框旋转铰接的门板；电动推杆,安装于门框与门板之间,用于驱动防护门的开启或关闭；控制单元,用于控制升降机和防护门的运行状态,本发明适用于建筑施工技术领域。(The invention discloses an intelligent elevator floor protective door switch linkage device and a control method thereof, which can realize automatic linkage control of an elevator and a protective door, have simple structure and good safety, and the key points of the technical scheme are as follows: the elevator comprises a machine door and a driving unit for driving the machine door to open and close; the protective door is arranged on a corresponding floor and comprises a door frame and a door plate which is rotatably hinged with the door frame; the electric push rod is arranged between the door frame and the door plate and used for driving the protective door to open or close; the control unit is used for controlling the running states of the lifter and the protective door, and the invention is suitable for the technical field of building construction.)

1. The utility model provides an intelligence lift floor guard gate switch aggregate unit which characterized in that: the method comprises the following steps:

the elevator comprises a machine door and a driving unit for driving the machine door to open and close;

the protective door is arranged on a corresponding floor and comprises a door frame (1) and a door plate (2) rotatably hinged with the door frame (1);

the electric push rod (3) is arranged between the door frame (1) and the door panel (2) and is used for driving the protective door to open or close;

and the control unit is used for controlling the running states of the lifter and the protective door.

2. The intelligent elevator floor guard door switch linkage of claim 1, wherein: the door frame (1) is provided with a first connecting seat (4), the tail end of the electric push rod (3) is hinged to the first connecting seat (4), the door plate (2) is further provided with a second connecting seat (5), and the head end of the electric push rod (3) is connected to the second connecting seat (5) in an intersecting mode.

3. The intelligent elevator floor guard door switch linkage of claim 1, wherein: the electric putter (3) comprises:

a housing;

a driving motor installed at one side of the housing;

a telescoping assembly;

a transmission mechanism;

the telescopic assembly and the transmission mechanism are both arranged in the shell, and the driving motor is connected with the telescopic assembly through the transmission mechanism; a first travel switch (7) for detecting whether the protective door is opened in place and a second travel switch (8) for detecting whether the protective door is closed in place are also arranged in the shell.

4. The intelligent elevator floor guard door switch linkage of claim 1, wherein: be equipped with on door plant (2) and prevent pressing from both sides response strip (6), prevent pressing from both sides response strip (6) and include the rubber strip and set up the response area in the rubber strip, the signal output part in response area is connected with the signal receiving terminal of the control unit.

5. The intelligent elevator floor guard door switch linkage of claim 3, wherein: the telescopic assembly comprises a ball screw and a telescopic guide rod (10), the ball screw comprises a screw (11) and a nut seat (12), the screw (11) comprises a connecting section and a threaded section which are connected, the nut seat (12) is connected onto the threaded section, the telescopic guide rod (10) is fixed on the nut seat (12), and the telescopic guide rod (10) is axially connected with the shell in a sliding manner;

the transmission mechanism comprises a speed reduction gear set (13), and a motor shaft of the driving motor is connected with the screw rod (11) through the speed reduction gear set (13).

6. The intelligent elevator floor guard door switch linkage of claim 5, wherein: the electric push rod (3) further comprises:

the overload protection mechanism is arranged between the reduction gear set (13) and the screw (11);

the clutch self-locking mechanism comprises a clutch component and a self-locking component;

the overload protection mechanism comprises a transmission shaft (21), a positioning rod (22) and a floating guide sleeve (23);

one end of a positioning rod (22) is fixed on the transmission shaft (21), the other end of the positioning rod (22) is positioned in a floating guide sleeve (23), the floating guide sleeve (23) is further sleeved on the connecting section, a plurality of guide bars which are annularly and equidistantly arranged are arranged on the connecting section, and a sliding groove matched with the guide bars is arranged on the floating guide sleeve (23);

a limiting block (24) positioned in the floating guide sleeve (23) is arranged on the positioning rod (22), a limiting ring (25) sleeved on the positioning rod (22) is further arranged in the floating guide sleeve (23), a pre-tightening spring (26) is further sleeved on the positioning rod (22), and two ends of the pre-tightening spring (26) are respectively abutted against the limiting ring (25) and the limiting block (24);

the transmission shaft (21) is also provided with a transmission sleeve (27) which is axially abutted against the floating guide sleeve (23), and a contact surface (28) between the transmission sleeve (27) and the floating guide sleeve (23) is in a concave-convex wavy shape.

7. The intelligent elevator floor guard door switch linkage of claim 6, wherein: the clutch assembly includes:

a first electromagnet (30) fixed in the housing;

the positioning ring (31) is arranged on the screw rod;

the clutch plate (32) is arranged on one side of the positioning ring (31) and is arranged on the same side as the first electromagnet (30);

a first spring (33) disposed on the other side of the positioning ring (31);

the clutch plate (32) is provided with a plurality of positioning pins, the positioning ring (31) is also provided with positioning holes (34) matched with the positioning pins, second springs (35) axially abutted against the positioning pins are further arranged in the positioning holes (34), an internal threaded hole is further formed in the shell, a retaining ring (36) arranged on the outer side of the positioning ring (31) is arranged in the internal threaded hole, the first spring (33) is arranged between the positioning ring (31) and the retaining ring (36), and two ends of the first spring (33) are provided with wear-resistant gaskets;

the self-locking assembly comprises:

the insert (40), the insert (40) is provided with a mounting hole (48);

a lock pin (41) located at the front end of the mounting hole (48);

an adjusting member (42) for adjusting the axial position of the lock pin (41) in the mounting hole (48);

wherein, the outer side of the shell is provided with a caulking groove, the insert (40) is fixedly arranged in the caulking groove, and the clutch plate (32) is also provided with a plurality of locking grooves matched with the lock pins (41); the adjusting piece (42) comprises a control shaft (43), two force arms (44), a rotating sleeve (45) and two ejector blocks (46), the control shaft (43) is radially inserted into the insert (40), the rotating sleeve (45) is located in the mounting hole (48) and is in threaded connection with the control shaft (43), the two force arms (44) are oppositely arranged in the mounting hole (48), one ends of the two force arms (44) are hinged to the rotating sleeve (45), the other ends of the two force arms (44) are respectively hinged to the two ejector blocks (46), one ejector block (46) is abutted to the bottom of the mounting hole (48) through a buffer spring (49), and the other ejector block (46) is abutted to the adjusting piece (42); when the control shaft (43) rotates, the nut sleeve realizes lifting movement, so that the distance between the two jacking blocks (46) is controlled; the front end of the mounting hole (48) is also provided with a return spring (47) sleeved on the lock pin (41);

when the first electromagnet (30) is electrified, a repulsive force is formed between the first electromagnet (30) and the clutch block, the second spring (35) is stressed to retract, and the lock pin (41) is axially separated from the lock groove;

when the first electromagnet (30) is powered off, the second spring (35) resets, the clutch block moves relative to one side of the first electromagnet (30), and the lock pin (41) locks the clutch plate (32).

8. The intelligent elevator floor guard door switch linkage of claim 7, wherein: reduction gear set (13) is including setting up the driven gear on transmission shaft (21), and drive mechanism still includes transmission control assembly, and transmission control assembly includes:

the mounting cavity (50) is arranged in the transmission shaft (21), the transmission shaft (21) is also provided with a through hole which is communicated with the mounting cavity (50) in a radial penetrating manner, and the gear is provided with a ball groove matched with the through hole;

a positioning ball (51);

the iron core (52) is axially slidably arranged in the mounting cavity (50), and an accommodating groove (53) for accommodating the positioning ball (51) is formed in the iron core (52);

the second electromagnet (54) is arranged in the shell and is opposite to the iron core (52);

the two ends of the return spring (55) are respectively abutted against the iron core (52) and the second electromagnet (54);

wherein, the inner wall of the mounting cavity (50) is also provided with an inner strip-shaped groove (56) which is arranged corresponding to the through hole;

when the second electromagnet (54) is electrified, the iron core (52) moves towards the second electromagnet (54), the return spring (55) is compressed, meanwhile, the iron core (52) pushes the positioning ball (51) to move towards the through hole and to be embedded into the ball groove, and at the moment, the gear can drive the transmission shaft (21) to rotate; when the second electromagnet (54) is powered off, the return spring (55) returns, the iron core (52) moves back to the second electromagnet (54), the positioning ball (51) enters the accommodating groove (53) and the inner strip-shaped groove (56) again, and the gear can rotate freely relative to the transmission shaft (21).

9. A control method suitable for the intelligent elevator floor guard door switch linkage device of claim 4, characterized by comprising the following steps: the control unit also comprises a voice reminding module and a control button, and the control button is used for operating the running state of the elevator;

the control method comprises the following steps:

when the control unit receives a floor signal of a control button, the elevator is lifted to a specified floor, after the floor is leveled, the control system controls the driving unit to enable a machine door of the elevator to be automatically opened, meanwhile, the control system controls the electric push rod (3) to extend outwards, and the electric push rod (3) pushes the protective door to be opened; in the opening process of the protective door, the voice reminding module carries out voice reminding on 'safety of the protective door opening attention';

when the protective door is opened for a certain time, the control unit automatically controls the protective door to be closed through the electric push rod (3), and when the protective door is completely closed, the machine door of the elevator is closed; in the process of closing the protective door, the voice reminding module carries out voice reminding on 'safety of the protective door when the protective door is closed';

thirdly, the control system waits for the next control button signal again;

wherein, in the closing process of the protective door, if the anti-pinch sensing strip (6) senses a signal, the control unit controls the protective door to be opened again through the electric push rod (3), and meanwhile, the voice reminding module carries out voice reminding on that the protective door has a foreign matter shielding request for inspection; meanwhile, in the closing process of the protective door, the closing time of the protective door is calculated, and if the protective door is not completely closed within the preset time, the voice reminding module carries out voice reminding on 'the push rod fault please check'.

10. A control method for the intelligent elevator floor guard door switch linkage of claim 8, characterized in that: the control unit also comprises a rotating speed sensor for detecting the rotating speed of the screw (11) and an abnormal state timing module;

the control method specifically comprises the following steps:

l1, the control unit judges whether the control key is pressed down and the elevator reaches the appointed floor, if yes, the step L2 is executed;

l2, the control unit sends signals to the driving unit and the electric push rod (3); the driving unit drives the machine door to be opened, meanwhile, the first electromagnet (30) is electrified, the second electromagnet (54) is electrified, and the driving motor starts forward rotation to drive the protective door to be opened; then proceed to step L3;

l3, judging whether the first travel switch (7) senses a signal or not, if not, starting timing by the abnormal state timing module, and simultaneously entering the step L4, if so, resetting the abnormal state timing module, and entering the step L7;

l4, judging whether the speed detected by the rotating speed sensor is zero, if so, entering a step L5; if not, returning to the step L3;

l5, voice reminding module for reminding 'foreign body blocking, protective door unable to open normally, please check'; and proceeds to step L6;

l6, judging whether the timing of the abnormal state timing module is S seconds, if not, returning to the step L3; if yes, go to step L7;

l7, stopping the driving motor, after delaying P seconds, controlling the driving motor to rotate reversely by the control unit, driving the protective door to close through the electric push rod (3), and then entering the step L8;

l8, judging whether the second travel switch (8) senses a signal or not, if not, entering a step L9, and if so, entering a step L10;

l9, judging whether the anti-pinch induction strip (6) detects a signal or not, and simultaneously judging whether the rotating speed detected by the rotating speed sensor is 0 or not; if either of the two judgments is yes, stopping the driving motor and recovering the positive rotation, returning to the step L3, and if both judgments are no, returning to the step L8;

l10, the driving unit drives the elevator door to close, and then returns to step L1.

Technical Field

The invention belongs to the technical field of building construction, and particularly relates to a switch linkage device for a floor protective door of an intelligent elevator.

Background

At present, in the process of transporting a building construction elevator, materials are generally transported to a floor to be stopped by the elevator, the elevator is positioned in a floor derrick, a floor protective door is arranged on the floor derrick, when the elevator stops properly on the floor derrick, the floor protective door arranged on the floor derrick needs to be opened, and a machine door of the elevator also needs to be opened; however, the existing protective door and the elevator usually belong to different control systems respectively, and the protective door is generally opened by manual control of constructors in floors; the elevator door is driven to lift by a lifting device arranged on the elevator to open, and belongs to an elevator control system. Therefore, when the device for lifting or descending the elevator door has an indication fault, or the elevator itself has an operation fault in the lifting or descending process, and the staff in the floor still opens the protective door for operation without knowing the situation, the safety accident of accidental falling can occur, and therefore improvement is needed.

Disclosure of Invention

The invention aims to provide an intelligent elevator floor protective door switch linkage device and a control method thereof, which can realize automatic linkage control of an elevator and a protective door, and have simple structure and good safety.

The purpose of the invention is realized as follows: the utility model provides an intelligence lift floor guard gate switch aggregate unit which characterized in that: the method comprises the following steps:

the elevator comprises a machine door and a driving unit for driving the machine door to open and close;

the protective door is arranged on a corresponding floor and comprises a door frame and a door plate which is rotatably hinged with the door frame;

the electric push rod is arranged between the door frame and the door plate and used for driving the protective door to open or close;

and the control unit is used for controlling the running states of the lifter and the protective door.

The invention is further configured to: the door frame is provided with a first connecting seat, the tail end of the electric push rod is hinged to the first connecting seat, the door plate is further provided with a second connecting seat, and the head end of the electric push rod is connected to the second connecting seat in an intersecting mode.

The invention is further configured to: the electric putter includes:

a housing;

a driving motor installed at one side of the housing;

a telescoping assembly;

a transmission mechanism;

the telescopic assembly and the transmission mechanism are both arranged in the shell, and the driving motor is connected with the telescopic assembly through the transmission mechanism; a first travel switch for detecting whether the protective door is opened in place and a second travel switch for detecting whether the protective door is closed in place are further arranged in the shell.

The invention is further configured to: be equipped with on the door plant and prevent pressing from both sides the response strip, prevent pressing from both sides the response strip and include the rubber strip and set up the response area in the rubber strip, the signal output part in response area is connected with the signal receiving part of the control unit.

The invention is further configured to: the telescopic assembly comprises a ball screw and a telescopic guide rod, the ball screw comprises a screw rod and a nut seat, the screw rod comprises a connecting section and a threaded section which are connected, the nut seat is connected to the threaded section, the telescopic guide rod is fixed on the nut seat, and the telescopic guide rod is axially connected with the shell in a sliding manner;

the transmission mechanism comprises a reduction gear set, and a motor shaft of the driving motor is connected with the screw through the reduction gear set.

The invention is further configured to: the electric putter still includes:

the overload protection mechanism is arranged between the reduction gear set and the screw rod;

the clutch self-locking mechanism comprises a clutch component and a self-locking component;

the overload protection mechanism comprises a transmission shaft, a positioning rod and a floating guide sleeve;

one end of the positioning rod is fixed on the transmission shaft, the other end of the positioning rod is positioned in the floating guide sleeve, the floating guide sleeve is further sleeved on the connecting section, a plurality of guide bars which are annularly and equidistantly arranged are arranged on the connecting section, and a sliding groove matched with the guide bars is formed in the floating guide sleeve;

the positioning rod is provided with a limiting block positioned in the floating guide sleeve, the floating guide sleeve is also internally provided with a limiting ring sleeved on the positioning rod, the positioning rod is also sleeved with a pre-tightening spring, and two ends of the pre-tightening spring are respectively abutted against the limiting ring and the limiting block;

the transmission shaft is also provided with a transmission sleeve which is axially abutted against the floating guide sleeve, and the contact surface between the transmission sleeve and the floating guide sleeve is in a wave shape with concave-convex fluctuation.

The invention is further configured to: the clutch assembly includes:

the first electromagnet is fixed in the shell;

the positioning ring is arranged on the screw rod;

the clutch plate is arranged on one side of the positioning ring and is arranged on the same side as the first electromagnet;

the first spring is arranged on the other side of the positioning ring;

the clutch plate is provided with a plurality of positioning pins, the positioning ring is also provided with positioning holes matched with the positioning pins, a second spring axially abutted against the positioning pins is further arranged in the positioning holes, the shell is also internally provided with an internal thread hole, a baffle ring arranged outside the positioning ring is arranged in the internal thread hole, the first spring is arranged between the positioning ring and the baffle ring, and two ends of the first spring are provided with wear-resistant gaskets;

the self-locking assembly comprises:

the insert is internally provided with a mounting hole;

the lock pin is positioned at the front end of the mounting hole;

the adjusting piece is used for adjusting the axial position of the lock pin in the mounting hole;

wherein, the outer side of the shell is provided with an embedding groove, the insert is fixedly arranged in the embedding groove, and the clutch plate is also provided with a plurality of locking grooves matched with the lock pins; the adjusting piece comprises a control shaft, two force arms, a rotary sleeve and two ejector blocks, the control shaft is radially inserted in the insert, the rotary sleeve is positioned in the mounting hole and is in threaded connection with the control shaft, the two force arm pairs are arranged in the mounting hole, one ends of the two force arms are hinged with the rotary sleeve, the other ends of the two force arms are respectively hinged with the two ejector blocks, one ejector block is abutted to the hole bottom of the mounting hole through a buffer spring, and the other ejector block is abutted to the adjusting piece; when the control shaft rotates, the nut sleeve realizes lifting movement, so that the distance between the two jacking blocks is controlled; the front end of the mounting hole is also provided with a return spring sleeved on the lock pin;

when the first electromagnet is electrified, a repulsive force is formed between the first electromagnet and the clutch block, the second spring is stressed to retract, and the lock pin is axially separated from the lock groove;

when the first electromagnet is powered off, the second spring resets, the clutch block moves to one side of the first electromagnet, and the locking of the clutch plate is realized by the lock pin.

The invention is further configured to: reduction gear set is including setting up in the epaxial driven gear of transmission, and drive mechanism still includes transmission control assembly, and transmission control assembly includes:

the mounting cavity is arranged in the transmission shaft, the transmission shaft is also provided with a through hole which is communicated with the mounting cavity in a radial penetrating manner, and the gear is provided with a ball groove matched with the through hole;

a positioning ball;

the iron core is axially and slidably arranged in the mounting cavity, and is provided with an accommodating groove for accommodating the positioning ball;

the second electromagnet is arranged in the shell and is opposite to the iron core;

two ends of the return spring are respectively abutted against the iron core and the second electromagnet;

wherein, the inner wall of the mounting cavity is also provided with an inner strip-shaped groove which is arranged corresponding to the through hole;

when the second electromagnet is electrified, the iron core moves towards the second electromagnet, the return spring is compressed, and meanwhile, the iron core pushes the positioning ball to move towards the through hole and move out of the through hole to be embedded into the ball groove, and at the moment, the gear can drive the transmission shaft to rotate; when the second electro-magnet outage, return spring restores, and the iron core removes to the second electro-magnet dorsad, and the location ball gets into holding tank and interior bar inslot again, and the gear can be relative transmission shaft free rotation.

A control method of an intelligent elevator floor protective door switch linkage device is characterized in that a control unit further comprises a voice reminding module and a control button, and the control button is used for operating the running state of an elevator;

the control method comprises the following steps:

when the control unit receives a floor signal of a control button, the elevator is lifted to a specified floor, after the floor is leveled, the control system controls the driving unit to enable a machine door of the elevator to be automatically opened, and simultaneously controls the electric push rod to extend outwards, and the electric push rod pushes the protective door to be opened; in the opening process of the protective door, the voice reminding module carries out voice reminding on 'safety of the protective door opening attention';

when the protective door is opened for a certain time, the control unit automatically controls the protective door to be closed through the electric push rod, and when the protective door is completely closed, the machine door of the elevator is closed; in the process of closing the protective door, the voice reminding module carries out voice reminding on 'safety of the protective door when the protective door is closed';

thirdly, the control system waits for the next control button signal again;

wherein, in the closing process of the protective door, if the anti-pinch induction strip senses a signal, the control unit controls the protective door to be opened again through the electric push rod, and meanwhile, the voice reminding module carries out voice reminding on 'the protective door has a foreign matter to shelter from and please check'; meanwhile, in the closing process of the protective door, the closing time of the protective door is calculated, and if the protective door is not completely closed within the preset time, the voice reminding module carries out voice reminding on 'the push rod fault please check'.

A control method of an intelligent elevator floor protective door switch linkage device is characterized in that a control unit further comprises a rotation speed sensor for detecting the rotation speed of a screw and an abnormal state timing module;

the control method specifically comprises the following steps:

l1, the control unit judges whether the control key is pressed down and the elevator reaches the appointed floor, if yes, the step L2 is executed;

l2, the control unit sends signals to the driving unit and the electric push rod; the driving unit drives the machine door to be opened, the first electromagnet is electrified, the second electromagnet is electrified, and the driving motor starts to rotate forwards to drive the protective door to be opened; then proceed to step L3;

l3, simultaneously judging whether the first travel switch senses a signal, if not, starting timing by the abnormal state timing module, simultaneously entering the step L4, if so, resetting the abnormal state timing module, and entering the step L7;

l4, judging whether the speed detected by the rotating speed sensor is zero, if so, entering a step L5; if not, returning to the step L3;

l5, voice reminding module for reminding 'foreign body blocking, protective door unable to open normally, please check'; and proceeds to step L6;

l6, judging whether the timing of the abnormal state timing module is S seconds, if not, returning to the step L3; if yes, go to step L7;

l7, stopping the driving motor, after delaying P seconds, controlling the driving motor to rotate reversely by the control unit, driving the protective door to close by the electric push rod, and then entering the step L8;

l8, judging whether the second travel switch senses a signal, if not, entering a step L9, and if so, entering a step L10;

l9, judging whether the anti-pinch induction strip detects a signal or not, and simultaneously judging whether the rotating speed detected by the rotating speed sensor is 0 or not; if either of the two judgment results is yes, the driving motor is stopped and the positive rotation is recovered, meanwhile, the voice reminding module returns to the step L3, and if the two judgment results are no, the voice reminding module returns to the step L8;

l10, the driving unit drives the elevator door to close, and then returns to step L1.

By adopting the technical scheme, the method has the following advantages:

when the elevator reaches an appointed floor, and the elevator door and the corresponding floor protective door can be automatically and simultaneously opened after the elevator accurately levels, so that automatic control is realized;

the opening and closing of the protective door are automatically controlled by the electric push rod, the electric push rod is provided with a travel switch for detecting the telescopic position of the electric push rod, namely the opening and closing state of the protective door can be detected, when the electric push rod drives the protective door to be completely closed, the elevator can be recovered to operate, and the safety and reliability are high;

the protective door has a function of delayed automatic closing, namely after the protective door is opened for a certain time, the electric push rod can automatically retract, so that the protective door is automatically closed;

the rubber anti-pinch strip is arranged on the door edge of the protective door, the sensor is arranged in the protective door, and the protective door is automatically re-opened after being touched by an object, so that the safety is good;

the control unit has voice broadcast and reminds the function, like the warning of opening the door, close the door and remind, prevent pressing from both sides and remind etc. the security performance is high.

Drawings

FIG. 1 is a schematic structural view of a middle protective door according to the present invention;

FIG. 2 is a schematic view of the electric putter of the present invention;

FIG. 3 is an enlarged view of part A of FIG. 2 according to the present invention;

FIG. 4 is an enlarged view of the portion B of FIG. 2 according to the present invention;

FIG. 5 is a schematic view of the adjusting member of FIG. 2 according to the present invention;

FIG. 6 is an enlarged view of the portion C of FIG. 2 according to the present invention;

FIG. 7 is a block diagram of the logical structure of the control method of the present invention;

the reference numbers in the figures are: 1. a door frame; 2. a door panel; 3. an electric push rod; 4. a first connecting seat; 5. a second connecting seat; 6. an anti-pinch sensor strip; 7. a first travel switch; 8. a second travel switch; 10. a telescopic guide rod; 11. a screw; 12. a nut seat; 13. a reduction gear set; 21. a drive shaft; 22. positioning a rod; 23. a floating guide sleeve; 24. a limiting block; 25. a limiting ring; 26. pre-tightening the spring; 27. a transmission sleeve; 28. a contact surface; 30. a first electromagnet; 31. a positioning ring; 32. a clutch plate; 33. a first spring; 34. positioning holes; 35. a second spring; 36. a baffle ring; 40. an insert; 41. a lock pin; 42. an adjustment member; 43. a control shaft; 44. a force arm; 45. a rotating sleeve; 46. a top block; 47. a return spring; 48. mounting holes; 49. a buffer spring; 50. a mounting cavity; 51. a positioning ball; 52. an iron core; 53. accommodating grooves; 54. a second electromagnet; 55. a return spring; 56. an inner strip-shaped groove.

Detailed Description

The invention will be further described in the following with reference to specific embodiments thereof, with reference to the accompanying drawings, in which figures 1 to 7:

the utility model provides an intelligence lift floor guard gate switch aggregate unit which characterized in that: the method comprises the following steps:

the elevator comprises a machine door and a driving unit for driving the machine door to open and close;

the protective door is arranged on a corresponding floor and comprises a door frame 1 and a door plate 2 which is rotatably hinged with the door frame 1;

the electric push rod 3 is arranged between the door frame 1 and the door panel 2 and is used for driving the protection door to open or close;

and the control unit is used for controlling the running states of the lifter and the protective door.

The elevator is arranged in the lifting derrick and realizes lifting in the lifting derrick; wherein, the control unit can adopt a PLC control system; the driving unit can be a servo motor and the like which drives the machine door to lift through a chain wheel and the like, and the structure is the prior art and is not described in detail; the control unit controls the lifting of the upgrading machine, the opening and closing of the elevator door and the opening and closing of the protective door.

The door frame 1 is provided with a first connecting seat 4, the tail end of the electric push rod 3 is hinged to the first connecting seat 4, the door plate 2 is further provided with a second connecting seat 5, and the head end of the electric push rod 3 is connected to the second connecting seat 5 in an intersecting mode.

Electric putter 3 installs in the top of guard gate, through reasonable structure setting, makes things convenient for opening or closing control of guard gate.

The electric putter 3 includes:

a housing;

a driving motor installed at one side of the housing;

a telescoping assembly;

a transmission mechanism;

the telescopic assembly and the transmission mechanism are both arranged in the shell, and the driving motor is connected with the guide rod of the telescopic guide rod 10 through the transmission mechanism; a first travel switch 7 for detecting whether the protective door is opened in place and a second travel switch 8 for detecting whether the protective door is closed in place are also arranged in the shell.

First travel switch 7 and second travel switch 8 all install in the casing to with the position that detects flexible subassembly, thereby judge the open mode of guard gate.

Be equipped with on the door plant 2 and prevent pressing from both sides response strip 6, prevent pressing from both sides response strip 6 and include the rubber strip and set up the response area in the rubber strip, the signal output part in response area is connected with the signal receiving terminal of the control unit.

The rubber strip plays and prevents pressing from both sides the effect, and the response area can adopt pressure-sensitive formula principle, and when the collision object, the pressurized production resistance changes to with signal feedback to control system, if the protection door closes the in-process, the signal is sensed in the response area, then the protection door is reopened, and the pronunciation player carries out pronunciation and reminds "the protection door has the foreign matter to shelter from please check".

A control method of an intelligent elevator floor protective door switch linkage device is characterized in that a control unit further comprises a voice reminding module and a control button, and the control button is used for operating the running state of an elevator;

the control method comprises the following steps:

when the control unit receives a floor signal of the control button, the elevator is lifted to a specified floor, after the floor is leveled, the control system controls the driving unit to enable the machine door of the elevator to be automatically opened, meanwhile, the control system controls the electric push rod 3 to extend outwards, and the electric push rod 3 pushes the protective door to be opened; in the opening process of the protective door, the voice reminding module carries out voice reminding on 'safety of the protective door opening attention';

after the protective door is opened for a certain time, such as 30-60 seconds, the control unit automatically controls the protective door to be closed through the electric push rod 3, and when the protective door is completely closed, the machine door of the elevator is closed; in the process of closing the protective door, the voice player carries out voice reminding on 'safety attention to closing the protective door';

then the control system waits for the next control button signal again;

wherein, in the closing process of the protective door, if the anti-pinch sensing strip 6 senses a signal, the control unit controls the protective door to be opened again through the electric push rod 3, and meanwhile, the voice reminding module carries out voice reminding on that the protective door is shielded by foreign matters and please check; meanwhile, in the closing process of the protective door, the closing time of the protective door is calculated, namely the control unit is also provided with a door closing timing module, the door closing time from the beginning to the complete closing of the single protective door is calculated, and if the protective door is not completely closed within the preset time, the voice reminding module carries out voice reminding on 'the push rod fault please check'.

Wherein, if prevent pressing from both sides sensing strip 6 and sense the signal, then the timing module of closing the door needs to time again, and the time of predetermineeing can be set for according to actual and practical needs, if 20-60 seconds.

By the structure and the control method, the elevator door and the corresponding floor protection door can be automatically and simultaneously opened;

after the protective door is opened, delayed closing can be realized;

the opening and closing of the protective door are automatically controlled by the electric push rod 3, the travel switch is arranged on the electric telescopic rod and is used for detecting the telescopic position of the electric push rod 3, namely the opening and closing state of the protective door can be detected, and the elevator can be recovered to operate only when the electric push rod 3 drives the protective door to be completely closed; the whole safety performance is high, and the method is suitable for popularization and use.

Example two:

the conventional electric push rod 3 usually has a self-locking function or does not have the self-locking function, and the conventional push rod has the following problems that if the electric push rod 3 with the self-locking function is adopted, the protective door can be automatically locked and cannot be opened or closed in abnormal states such as power failure, and if the electric push rod 3 without the self-locking function is adopted, the protective door is easily and manually forcibly opened or closed in use, so that potential safety hazards exist; and its overload protection mode of current electric putter 3 is current sensing protection usually, when electric putter 3's motor current was too big promptly, just carries out power-off protection, though can reach power-off protection's effect, but can the in use outage shut down, and it is inconvenient to use, and when motor self electric current was too big, still caused the damage to the motor easily.

Therefore, on the basis of the first embodiment, the apparatus is further configured to:

the telescopic assembly comprises a ball screw and a telescopic guide rod 10, the ball screw comprises a screw 11 and a nut seat 12, the screw 11 comprises a connecting section and a threaded section which are connected, the nut seat 12 is connected to the threaded section, the telescopic guide rod 10 is fixed on the nut seat 12, and the telescopic guide rod 10 is axially connected with the shell in a sliding manner;

the ball screw is adopted, so that the friction force is small, the operation is smoother, and the rotation motion of the ball screw is converted into the linear motion of the telescopic guide rod 10.

The transmission mechanism comprises a speed reducing gear set 13, a motor shaft of the driving motor is connected with the screw rod 11 through the speed reducing gear set 13, and the protective door can be opened or closed slowly through the arrangement of the speed reducing gear set 13.

The electric putter 3 further comprises:

the overload protection mechanism is arranged between the reduction gear set 13 and the screw rod 11;

the clutch self-locking mechanism comprises a clutch component and a self-locking component;

the overload protection mechanism comprises a transmission shaft 21, a positioning rod 22 and a floating guide sleeve 23;

one end of a positioning rod 22 is fixed on the transmission shaft 21, the other end of the positioning rod 22 is positioned in a floating guide sleeve 23, the floating guide sleeve 23 is further sleeved on a connecting section, a plurality of guide bars which are annularly and equidistantly arranged are arranged on the connecting section, and a sliding chute matched with the guide bars is arranged on the floating guide sleeve 23;

a limiting block 24 positioned in the floating guide sleeve 23 is arranged on the positioning rod 22, a limiting ring 25 sleeved on the positioning rod 22 is also arranged in the floating guide sleeve 23, a pre-tightening spring 26 is also sleeved on the positioning rod 22, and two ends of the pre-tightening spring 26 are respectively abutted against the limiting ring 25 and the limiting block 24;

the transmission shaft 21 is further provided with a transmission sleeve 27 which is axially abutted against the floating guide sleeve 23, and a contact surface 28 between the transmission sleeve 27 and the floating guide sleeve 23 is in a concave-convex wavy shape.

The transmission is fixed in the shell through structures such as bearings, the limiting sleeve and the inner wall of the floating guide sleeve 23 can be in threaded connection, and the transmission shaft 21 can be provided with pins which radially penetrate through the transmission sleeve 27, so that the transmission sleeve 27 and the transmission shaft 21 are fixedly connected.

The principle of the overload protection mechanism is as follows: under a normal state, when the transmission shaft 21 rotates, under the acting force of the pre-tightening spring 26, the transmission sleeve 27 is abutted against the floating guide sleeve 23, and the transmission sleeve 27 drives the floating guide sleeve 23 to rotate, so that the floating guide sleeve 23 drives the screw rod 11 to rotate, and at the moment, the telescopic guide rod 10 can realize telescopic motion;

when the protective door is blocked in the opening and closing process, namely the telescopic guide rod 10 is blocked in the telescopic way, namely the screw rod 11 is blocked in the rotation way, the transmission sleeve 27 and the floating guide sleeve 23 are forced to generate circumferential sliding rotation, and the floating guide sleeve 23 can axially slide;

the protection door is opened and close the in-process promptly and is obstructed, and driving motor also can keep free rotation to play overload protection's effect to the drive plate motor, also avoid driving motor's unusual shut down, the result of use is better.

The clutch assembly includes:

a first electromagnet 30 fixed in the housing;

the positioning ring 31 is arranged on the screw rod;

the clutch plate 32 is arranged on one side of the positioning ring 31 and is arranged on the same side as the first electromagnet 30;

a first spring 33 disposed on the other side of the positioning ring 31;

the clutch plate 32 is provided with a plurality of positioning pins, the positioning ring 31 is also provided with positioning holes 34 matched with the positioning pins, second springs 35 axially abutted against the positioning pins are further arranged in the positioning holes 34, the shell is also internally provided with an internal threaded hole, a baffle ring 36 arranged on the outer side of the positioning ring 31 is arranged in the internal threaded hole, the first springs 33 are arranged between the positioning ring 31 and the baffle ring 36, and two ends of the first springs 33 are provided with wear-resistant gaskets;

the second spring 35 has a buffering effect between the positioning ring 31 and the stopper ring 36, and the buffering effect mainly includes two aspects, one is an axial impact force generated on the positioning ring 31 after the first electromagnet 30 is electrified, and the other is that when the protective door is pulled outwards, the screw rod 11 is axially pulled outwards, so that the buffering protection effect can be also achieved; wherein, the both ends of second spring 35 still can set up the spring holder, uses with wear-resisting gasket cooperation, reduces frictional force, is convenient for the free rotation of screw rod 11.

The self-locking assembly comprises:

the insert 40, wherein a mounting hole 48 is arranged in the insert 40;

a lock pin 41 located at the front end of the mounting hole 48;

an adjusting member 42 for adjusting the axial position of the lock pin 41 in the mounting hole 48;

wherein, the outer side of the shell is provided with a caulking groove, the insert 40 is fixedly arranged in the caulking groove, and the clutch plate 32 is also provided with a plurality of locking grooves matched with the locking pins 41; the adjusting piece 42 comprises a control shaft 43, two force arms 44, a rotating sleeve 45 and two ejector blocks 46, the control shaft 43 is radially inserted into the insert 40, the rotating sleeve 45 is positioned in the mounting hole 48 and is in threaded connection with the control shaft 43, the two force arms 44 are oppositely arranged in the mounting hole 48, one ends of the two force arms 44 are hinged to the rotating sleeve 45, the other ends of the two force arms 44 are respectively hinged to the two ejector blocks 46, one ejector block 46 is abutted to the bottom of the mounting hole 48 through a buffer spring 49, and the other ejector block 46 is abutted to the adjusting piece 42; when the control shaft 43 rotates, the nut sleeve realizes lifting movement, so that the distance between the two jacking blocks 46 is controlled; the front end of the mounting hole 48 is also provided with a return spring 47 sleeved on the lock pin 41;

when the first electromagnet 30 is electrified, a repulsive force is formed between the first electromagnet 30 and the clutch block, the second spring 35 is stressed to retract, and the lock pin 41 is axially separated from the lock groove;

when the first electromagnet 30 is powered off, the second spring 35 is reset, the clutch piece moves relative to one side of the first electromagnet 30, and the lock pin 41 locks the clutch plate 32.

The insert 40 can be fixed in the caulking groove by a screw or the like, the length of the lock pin 41 axially extending out of the mounting hole 48 can be adjusted by arranging the adjusting piece 42, the length is used for being locked with the clutch plate 32 to play a self-locking role, and the return spring 47 is used for providing a role of axially moving the lock pin 41 into the mounting hole 48; when it is desired to release the self-locking function, the adjustment member 42 can be manually rotated to retract the lock pin 41.

Through the matching use of the self-locking assembly and the clutch assembly, the self-locking can be realized under the power-off state of the first electromagnet 30, and the opening of the protective door is avoided; under special conditions, the locking pin 41 can be retracted and self-locking can be released through manual rotation adjustment, and the using effect is better.

The reduction gear set 13 includes the driven gear who sets up on transmission shaft 21, and drive mechanism still includes the transmission control assembly, and the transmission control assembly includes:

the mounting cavity 50 is arranged in the transmission shaft 21, a through hole which is communicated with the mounting cavity 50 in a radial penetrating manner is further formed in the transmission shaft 21, and a ball groove matched with the through hole is formed in the gear;

a positioning ball 51;

the iron core 52 is axially slidably arranged in the mounting cavity 50, and the iron core 52 is provided with an accommodating groove 53 for accommodating the positioning ball 51;

a second electromagnet 54 installed in the housing and facing the iron core 52;

two ends of the return spring 55 respectively abut against the iron core 52 and the second electromagnet 54;

wherein, the inner wall of the mounting cavity 50 is also provided with an inner strip-shaped groove 56 which is arranged corresponding to the through hole;

when the second electromagnet 54 is powered on, the iron core 52 moves towards the second electromagnet 54, the return spring 55 is compressed, meanwhile, the iron core 52 pushes the positioning ball 51 to move towards the through hole and move out of the through hole to be embedded into the ball groove, and at the moment, the gear can drive the transmission shaft 21 to rotate; when the second electromagnet 54 is powered off, the return spring 55 is restored, the iron core 52 moves back to the second electromagnet 54, the positioning ball 51 enters the accommodating groove 53 and the inner strip-shaped groove 56 again, and the gear can rotate freely relative to the transmission shaft 21; the material of the transmission rod is preferably non-ferromagnetic alloy material.

In the normal opening or closing operation process of the protective door, when the protective door needs to be opened or closed, the second electromagnet 54 is in an electrified state, the driving motor can normally drive the transmission shaft 21 to rotate, the first electromagnet 30 is also in an electrified state, and the self-locking state is released;

when the guard door is in the closed state and the open signal is not received, the second electromagnet 54 is in the power-off state, the first electromagnet 30 is also in the power-off state, and the self-locking state is effective.

In practical use, a protective door manual opening button can be arranged in the control button, but a striking mark or a character expression is required to be marked, no pressing is required under special conditions, the protective door manual opening button is used for controlling the power on and power off of the first electromagnet 30, namely when the protective door manual opening button is pressed, the first electromagnet 30 is in a power-on state, the self-locking function of the electric push rod 3 fails at the moment, and the second electromagnet 54 is in a power-off state, so that when the telescopic guide rod 10 is forced to be pulled outwards, the screw rod 11 can rotate freely without influencing a driving motor, namely, the protective door can be forced to be opened or closed under the action of external force; when the manual opening button of the protective door is released, the first electromagnet 30 is powered off, and the self-locking device can take effect again;

the situation is suitable for some special situations, for example, when the elevator is abnormal in leveling and the protective door cannot be opened independently, the protective door can be opened by the method; in addition, when the elevator is abnormal in leveling and the elevator and the control unit are abnormally powered off, under the special condition, if the protective door needs to be opened, only the control shaft 43 on the adjusting piece 42 needs to be rotated, and the self-locking function of the elevator is disabled in a manual mode;

therefore, the device can achieve the functions of autonomous control and safe self-locking in normal use, avoid the protection door from being opened abnormally, and can actively open and close the protection door in a manual mode under some special conditions, so that the whole safety is better.

A control method of an intelligent elevator floor protective door switch linkage device is characterized in that a control unit further comprises a rotation speed sensor and an abnormal state timing module, wherein the rotation speed sensor is used for detecting the rotation speed of a screw rod 11;

the control method specifically comprises the following steps:

l1, the control unit judges whether the control key is pressed down and the elevator reaches the appointed floor, if yes, the step L2 is executed;

the control keys are arranged in the elevator or on corresponding floors, are used for sending input signals to the control unit through manual operation and controlling the elevator to lift and open and close the door;

l2, the control unit sends signals to the driving unit and the electric push rod 3; the driving unit drives the machine door to be opened, and meanwhile, the first electromagnet 30 is electrified, and the second electromagnet 54 is electrified; the driving motor starts to rotate forward to drive the protective door to open; meanwhile, the voice reminding module carries out voice reminding on 'safety of door opening attention of the protective door'; then proceed to step L3;

l3, judging whether the first travel switch 7 senses a signal, if not, indicating that the telescopic guide rod 10 is not extended to the right position, namely the protective door is not completely opened, starting timing by the abnormal state timing module, and simultaneously entering a step L4, if so, indicating that the telescopic guide rod 10 is extended to the right position, namely the protective door is completely opened, resetting the abnormal state timing module, and entering a step L7;

l4, judging whether the speed detected by the rotating speed sensor is zero, if so, indicating that the opening of the protective door is blocked, and entering a step L5; if not, indicating that the surface protection door is in the normal opening process, returning to the step L3;

l5, voice reminding module for reminding 'foreign body blocking, protective door unable to open normally, please check'; and proceeds to step L6;

l6, judging whether the timing of the abnormal state timing module is S seconds, if not, returning to the step L3, and meanwhile, continuously timing by the abnormal state timing module; if yes, indicating that the foreign object blockage problem is not solved within the set time, proceeding to step L7;

the abnormal state timing module is mainly used for reminding an operator to actively remove the obstacle within S seconds by calculation, and if a person actively finds the problem: in general, there are two situations, one is to move the obstacle directly, so that the opening of the protective door is recovered to normal; secondly, if someone actively presses the door closing control button, the step L7 is directly performed in advance; if no one finds the situation, the step automatically enters the step L7 after the time is up to S seconds; the safety is improved; the value of S can be set according to actual needs, such as 30-60, but the value is necessarily longer than the time required by actually opening the protective door;

l7, stopping the driving motor, and after delaying P seconds, controlling the driving motor to rotate reversely by the control unit, driving the protective door to close by the electric push rod 3, wherein the voice reminding module can remind the protective door to close the door and pay attention to safety in the closing process, and then entering the step L8; wherein the value of P can be set according to actual needs, such as 20-60;

l8, judging whether the second travel switch 8 senses a signal, if not, indicating that the protective door is not completely closed, entering a step L9, and if yes, indicating that the protective door is completely closed, entering a step L10;

l9, in the process that the protective door is not completely closed, judging whether the anti-pinch induction strip 6 detects a signal or not, and simultaneously judging whether the rotating speed detected by the rotating speed sensor is 0 or not; if either of the two judgment results is yes, indicating that the foreign matter is blocked and closed, the voice reminding module can remind the protection door that the foreign matter is blocked and the detection is required, entering the step L3, and if the two judgment results are no, returning to the step L8;

the anti-pinch sensing strip 6 is mainly convenient for an operator to open the door actively, for example, when goods are still in the carrying process, or an operator does not enter the elevator or go out of the elevator, the operator can actively touch the anti-pinch sensing strip 6, so that the protective door is opened again, the anti-pinch sensing strip is more convenient, and an anti-pinch function is achieved; the rotating speed sensor is mainly used for passively detecting whether the protective door is closed abnormally or not, if the protective door is closed abnormally, the protective door needs to be opened again and then closed, and the voice reminding module is used for reminding that the protective door has foreign matter shielding and requires checking, and if the protective door is not closed completely, the elevator is used in a state that the elevator cannot be lifted and used, so that the safety is improved;

l10, the drive unit drives the elevator door closed and then returns to step L1, indicating that the elevator can be reused.

Wherein, when the guard gate is two opening structures, electric putter 3 also is two, and at this moment the control process, need carry out two liang of simultaneous contrasts to two electric putter 3's first travel switch 7, second travel switch 8 and speed sensor's state, when arbitrary first travel switch 7 did not put in place promptly, then the guard gate belongs to not completely open the state, only when two electric putter 3's second travel switch 8 all detected the signal, could indicate that the guard gate has been in the complete closure state.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.