阅读说明：本技术 一种电梯轿门强度贯标的改造方法及其改造装置 (Transformation method and device for elevator car door strength through mark ) 是由 谭晓亨 王雁 苏叙豪 于 2021-08-13 设计创作，主要内容包括：本发明提供的一种电梯轿门强度贯标的改造方法,要求在轿门与门机安装一种门强度贯标改造装置,用于在地坎槽较浅时,通过插销插入地坎槽下部,以增加接触深度,使轿门受冲击也不会脱离地坎槽,使轿门强度满足新国标要求的改造方法。其中所述的门强度贯标改造装置包括插销装置以及插销提拉装置：所述插销装置安装于轿门下部的左右两端,包括安装座,插销,上下限位螺栓,复位弹簧,同步连杆；所述插销提拉装置安装在门机上,包括导向槽,提拉杆,连杆,插销压杆。此改造方法保留了原旧梯地坎,不改变原轿架结构,改造施工量少,成本低。(The invention provides a method for improving the strength of an elevator car door, which is characterized in that a door strength standard improving device is required to be arranged on a car door and a door machine and is used for increasing the contact depth by inserting a bolt into the lower part of a sill groove when the sill groove is shallow, so that the car door cannot fall off the sill groove under impact, and the car door strength meets the new national standard. Wherein the door strength is passed through mark transformation device and is included bolt device and bolt lifting device: the bolt devices are arranged at the left end and the right end of the lower part of the car door and comprise mounting seats, bolts, upper and lower limiting bolts, reset springs and synchronous connecting rods; the bolt lifting device is arranged on the gantry crane and comprises a guide groove, a lifting rod, a connecting rod and a bolt pressing rod. The transformation method reserves the original old ladder sill, does not change the original car frame structure, and has less transformation construction amount and low cost.)

1. A strength through mark transformation device for an elevator car door is used for being installed between the car door and a door machine; the method is characterized in that: comprises a bolt device and a bolt lifting device; the bolt devices are arranged at the left end and the right end of the lower part of the car door; the bolt device comprises a mounting seat, a bolt, an upper limiting bolt, a lower limiting bolt, a return spring and a synchronous connecting rod; the bolt lifting device is arranged on the gantry crane; the safety device comprises a mounting seat, a bolt, an upper limit bolt, a lower limit bolt, a reset spring and a synchronous connecting rod, wherein the bolt penetrates through the mounting seat and can move up and down along the mounting seat, the bolt can be inserted below a sill groove through a hole drilled in the sill groove, the upper limit bolt and the lower limit bolt are mounted on the bolt and used for adjusting the minimum distance of the bolt extending below the sill groove, the reset spring is mounted on the bolt and can provide enough elastic force to enable the bolt to ascend and reset to the position with the minimum insertion depth when a car door is opened, and the synchronous connecting rod is used for connecting two bolts on the same car door so as to ensure that a push rod can simultaneously push the two bolts to downwards insert into the lower part of the sill groove.

2. The elevator car door strength through mark transformation device according to claim 1, characterized in that: the bolt lifting device comprises a guide groove, a lifting rod, a connecting rod and a bolt pressing rod; the guide way is fixed in the door frame, does not move along with door link plate switch door motion, the lifting rod is fixed on a door link plate of a door, can move along with the door link plate when opening or closing the door, still can be rotatory around the fixed point simultaneously, lifting rod and bolt depression bar are connected to the connecting rod, and the connecting rod can be along with the swing up-and-down motion of lifting rod, the bolt depression bar is on a parallel with the lifting rod, installs on the sedan-chair door and is connected with the connecting rod, and 4 pivot point connecting lines of bolt depression bar and lifting rod are parallelogram structure, and bolt depression bar pressure head position is adjustable.

3. The elevator car door strength through mark transformation device according to claim 1, characterized in that: the sill is an old sill which is used on an old ladder and is provided with a drilled hole or a brand-new sill which keeps the same specification and installation mode with the old sill, the drilled hole is a bolt hole, and the bolt hole is in a long hole shape.

4. The elevator car door strength through mark transformation device according to claim 2, characterized in that: the height stroke of guide way is adjustable, and the accessible is adjusted the guide way height and is realized that the bolt inserts the regulation of sill groove degree of depth.

5. The elevator car door strength through mark transformation device according to claim 1, characterized in that: the reset spring is one of a torsion spring, a compression spring, a tension spring and an elastic sheet.

6. The elevator car door strength through mark transformation device according to claim 2, characterized in that: the connecting rod is one of a common rigid connecting rod, a steel wire rope and a lifting rope with a guide pipe.

7. The method for improving the strength through mark of the elevator car door is characterized by comprising the following steps of:

step S1, drilling holes at the bottom of the sill groove of the old elevator, or replacing a new drilled sill with the same connection mode as the old elevator, wherein the drilled holes are bolt holes, and the holes are long holes;

step S2, detaching the old elevator car door from the field old elevator, and installing a latch device on the detached car door;

step S3, installing a bolt lifting device in the door machine, connecting the bolt lifting device with a bolt pressing rod through a connecting rod, and controlling the action of a bolt through the bolt pressing rod;

step S4, when the door is closed, the bolt installed at the lower part of the car door is inserted into the sill groove and has a certain distance with the bottom surface of the sill groove, at the moment, the reset spring is in an extension state, the depth of the bolt inserted into the sill groove is minimum, when the door is closed to a certain degree, namely, the distance reaches L1, the lifting rod starts to touch the guide groove, when the door is continuously closed, the lifting rod swings upwards due to the force of the guide groove, so that the connecting rod moves upwards, the end of the pressing head of the pressing rod of the bolt swings downwards to push the bolt, the bolt is inserted into the slotted hole of the sill downwards, when the roller of the lifting rod moves to the highest surface of the guide groove along the guide groove, the depth of the bolt inserted into the slotted hole of the sill reaches the maximum, at the moment, the distance between the doors reaches L2, and in order to ensure that the depth of the slotted hole inserted into the unlocking stroke range is the maximum, the L2 is set to be larger than the unlocking stroke; the plug pin extends into the bottom of the sill groove to be deep enough, so that the car door cannot fall off the sill groove when being impacted by the inside of the car, people in the car are protected, and the new national standard requirement is met;

step S5, when the door is opened, the lifting rod roller moves along the guide groove along with the operation of the door hanging plate, when the door interval reaches L2, the lifting rod roller moves to the downhill point of the guide groove, when the door is opened continuously, the connecting rod moves downwards due to the downward swing of the lifting rod, the pushing force of the bolt on the bolt is cancelled by the upward swing of the pressing head end of the bolt pressing rod, the bolt moves upwards under the action of the reset spring force and is drawn out of the groove hole of the sill, when the door interval reaches L1, the depth of the bolt inserted into the groove of the sill is reset to the minimum value, at the moment, the lifting rod also reaches the limit position of the downward swing, the car door is opened continuously, the bolt cannot interfere with the groove of the sill, and the door is opened continuously and normally.

8. The method for improving the elevator car door strength through mark of claim 7 is characterized in that: in step S2, the latch device may be installed on the car door by drilling or welding, or installed by replacing a new car door.

Technical Field

The invention relates to the technical field of elevators, in particular to a method and a device for improving an elevator car door strength through mark.

Background

The original components of the old elevator are reserved in many elevator reconstruction methods, and for safety, the components of the old elevator which do not meet the national standard requirements can be subjected to standard penetration by clients or regional relevant mechanisms during reconstruction. When the car frame is reserved in the process of modifying the elevator, because the original car door sill groove is too shallow, the car door is easy to separate from the sill groove when being impacted, the car door strength cannot meet the requirements of a new national standard, the car door strength standard penetration mode is realized at the present stage mainly by increasing the depth of the sill groove and simultaneously increasing the clamping plate to meet the requirements of the new national standard, because of the limitation of an old ladder structure, if the sill of the deep sill groove is replaced, the car bottom needs to be replaced or operations such as field cutting and welding need to be carried out, the processing difficulty is high, and the cost is high.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a method and a device for improving the strength through standard of an elevator car door.

The invention is realized by the following technical scheme:

a device for improving the strength of an elevator car door through marks is used for being installed between a car door and a door machine; wherein: comprises a bolt device and a bolt lifting device; the bolt devices are arranged at the left end and the right end of the lower part of the car door; the bolt device comprises a mounting seat, a bolt, an upper limiting bolt, a lower limiting bolt, a return spring and a synchronous connecting rod; the bolt lifting device is arranged on the gantry crane; the safety device comprises a mounting seat, a bolt, an upper limit bolt, a lower limit bolt, a reset spring and a synchronous connecting rod, wherein the bolt penetrates through the mounting seat and can move up and down along the mounting seat, the bolt can be inserted below a sill groove through a hole drilled in the sill groove, the upper limit bolt and the lower limit bolt are mounted on the bolt and used for adjusting the minimum distance of the bolt extending below the sill groove, the reset spring is mounted on the bolt and can provide enough elastic force to enable the bolt to ascend and reset to the position with the minimum insertion depth when a car door is opened, and the synchronous connecting rod is used for connecting two bolts on the same car door so as to ensure that a push rod can simultaneously push the two bolts to downwards insert into the lower part of the sill groove.

Furthermore, the bolt lifting device comprises a guide groove, a lifting rod, a connecting rod and a bolt pressing rod; the guide way is fixed in the door frame, does not move along with door link plate switch door motion, the lifting rod is fixed on a door link plate of a door, can move along with the door link plate when opening or closing the door, still can be rotatory around the fixed point simultaneously, lifting rod and bolt depression bar are connected to the connecting rod, and the connecting rod can be along with the swing up-and-down motion of lifting rod, the bolt depression bar is on a parallel with the lifting rod, installs on the sedan-chair door and is connected with the connecting rod, and 4 pivot point connecting lines of bolt depression bar and lifting rod are parallelogram structure, and bolt depression bar pressure head position is adjustable.

Further, the sill is an old sill which is already used on the old ladder and is provided with a drilled hole or a brand new sill which keeps the specification and the installation mode consistent with the old sill, the drilled hole is a bolt hole, and the bolt hole is in a long hole shape.

Furthermore, the height stroke of the guide groove is adjustable, and the depth of the inserted pin inserted into the sill groove can be adjusted by adjusting the height of the guide groove.

Further, the return spring is one of a torsion spring, a compression spring, a tension spring and a spring plate.

Further, the connecting rod is one of a common rigid connecting rod, a steel wire rope and a lifting rope with a guide pipe.

Further, the method for improving the elevator car door strength through mark comprises the following steps:

step S1, drilling holes at the bottom of the sill groove of the old elevator, or replacing a new drilled sill with the same connection mode as the old elevator, wherein the drilled holes are bolt holes, and the holes are long holes;

step S2, detaching the old elevator car door from the field old elevator, and installing a latch device on the detached car door; step S3, installing a bolt lifting device in the door machine, connecting the bolt lifting device with a bolt pressing rod through a connecting rod, and controlling the action of a bolt through the bolt pressing rod;

step S4, when the door is closed, the bolt installed at the lower part of the car door is inserted into the sill groove and has a certain distance with the bottom surface of the sill groove, at the moment, the reset spring is in an extension state, the depth of the bolt inserted into the sill groove is minimum, when the door is closed to a certain degree, namely, the distance reaches L1, the lifting rod starts to touch the guide groove, when the door is continuously closed, the lifting rod swings upwards due to the force of the guide groove, so that the connecting rod moves upwards, the end of the pressing head of the pressing rod of the bolt swings downwards to push the bolt, the bolt is inserted into the slotted hole of the sill downwards, when the roller of the lifting rod moves to the highest surface of the guide groove along the guide groove, the depth of the bolt inserted into the slotted hole of the sill reaches the maximum, at the moment, the distance between the doors reaches L2, and in order to ensure that the depth of the slotted hole inserted into the unlocking stroke range is the maximum, the L2 is set to be larger than the unlocking stroke; the plug pin extends into the bottom of the sill groove to be deep enough, so that the car door cannot fall off the sill groove when being impacted by the inside of the car, people in the car are protected, and the new national standard requirement is met;

step S5, when the door is opened, the lifting rod roller moves along the guide groove along with the operation of the door hanging plate, when the door interval reaches L2, the lifting rod roller moves to the downhill point of the guide groove, when the door is opened continuously, the connecting rod moves downwards due to the downward swing of the lifting rod, the pushing force of the bolt on the bolt is cancelled by the upward swing of the pressing head end of the bolt pressing rod, the bolt moves upwards under the action of the reset spring force and is drawn out of the groove hole of the sill, when the door interval reaches L1, the depth of the bolt inserted into the groove of the sill is reset to the minimum value, at the moment, the lifting rod also reaches the limit position of the downward swing, the car door is opened continuously, the bolt cannot interfere with the groove of the sill, and the door is opened continuously and normally.

Further, in step S2, the latch device may be installed on the car door by drilling or welding, or installed by replacing a new car door.

The invention has the beneficial effects that:

the transformation method and the transformation device for the elevator car door strength penetration mark can be used for preventing the car door from falling off the floor trough when being impacted, well meets the requirement of the car door strength penetration mark, and are simple in structure and low in cost. The method is characterized in that the standard of car door strength is formed by increasing the groove depth of the sill in the current stage, the method is not suitable for the reconstruction of an old elevator with a car frame, and under the premise of not replacing the specification of the sill, the old sill is drilled or the sill which is drilled in the same specification is replaced, so that the standard requirement of car door strength is met when the car bottom of the old elevator is not changed, the cost of reconstructing the standard of car door strength is reduced, and the time for reconstructing the car door is shortened.

Drawings

Fig. 1 is a schematic view of a door closing state according to an embodiment of the invention;

FIG. 2 is a schematic view of a latch mechanism according to an embodiment of the present invention after the door is closed;

FIG. 3 is a schematic view of a door closed pulling apparatus according to an embodiment of the present invention;

FIG. 4 is a schematic view of a plug pulling apparatus according to an embodiment of the present invention;

FIG. 5 is a schematic view illustrating a door opened state according to an embodiment of the present invention;

FIG. 6 is a schematic view of a latch mechanism for use with an open door according to an embodiment of the present invention;

FIG. 7 is a schematic view of a door-opened pulling apparatus according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a latch lifting device according to an embodiment of the present invention, which employs a lifting rope.

In the drawings: 100-gantry crane; 110-door hanging plate; 120-door frame; 200-a plug pin lifting device; 210-lifting a pull rod; 211-lifting rod rotating shaft; 212-lifting rod rollers; 220-a guide groove; 230-a connecting rod; 240-latch lever; 241-latch pressure lever pulling the rotating shaft; 242-bolt press rod fixing rotating shaft; 243-bolt pressure lever pressure head; 300-sill; 310-bottom surface of sill trough; 320-sill slot bolt hole; 400-car door; 500-a latch arrangement; 510-a mounting seat; 520-upper and lower limit bolts; 530-a return spring; 540-bolt; 550-synchronous linkage.

Detailed Description

The invention will be described in detail with reference to the drawings and specific embodiments, which are illustrative of the invention and are not to be construed as limiting the invention.

It should be noted that the descriptions referring to "first" and "second" in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

In the present invention, unless expressly stated or limited otherwise, the term "coupled" is to be interpreted broadly, e.g., "coupled" may be fixedly coupled, detachably coupled, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1 and 2, the sill 300 may be an old sill already used in an old ladder or a completely new sill, and is provided with a sill groove bottom surface 310, and a sill groove latch hole 320 formed by drilling a through hole from above the sill groove, in conformity with the specification and installation manner of the old sill. The floor groove bolt hole 320 is a long hole, which can allow the bolt to freely extend and retract when opening and closing the door without colliding with the floor groove.

As shown in fig. 2, the elevator car door strength through mark transformation device is used for being installed between a car door 400 and a door machine 100; wherein: comprises a plug pin device 500 and a plug pin lifting device 200; the latch device 500 is installed at the left and right ends of the lower portion of the car door 400, and includes an installation seat 510, a latch 540, an upper and lower limit bolt 520, a return spring 530, and a synchronization link 550, the latch 540 is inserted into the installation seat and can move up and down along the installation seat 510, and can be inserted under a sill groove through a sill groove drilled hole, the upper and lower limit bolt 520 is installed on the latch 540 for adjusting the minimum depth of the latch 540 extending under the sill groove, the return spring 530 is installed on the latch 540, and can provide sufficient elastic force to lift the latch 540 when the car door 400 is opened and return to the minimum insertion depth position, and the synchronization link 550 is used for connecting two latches on the same car door, so as to ensure that the latch pressing rod can simultaneously push the two latches to be inserted into the lower portion of the sill groove.

Specifically, in the embodiment, as shown in fig. 4, the latch lifting device 200 is installed on the door machine 100 and the car door 400, and includes a lifting rod 210, a lifting rod rotating shaft 211, a lifting rod roller 212, a guide groove 220, a connecting rod 230, a latch pressing rod 240, a latch pressing rod lifting rotating shaft 241, a latch pressing rod fixing rotating shaft 242, and a latch pressing rod pressing head 243. The guide groove 220 is fixed on the door frame 120 and does not move along with the door opening and closing movement of the door hanging plate 110; the lifting rod 210 is fixed on the door hanging plate 110 of the door machine, can move along with the door hanging plate 110 when opening and closing the door, and can rotate around a lifting rod rotating shaft 211, when the distance between the doors is smaller than a set certain value, the lifting rod roller 212 moves along the track of the guide groove 220, so that the lifting rod 210 is driven to swing up and down; the connecting rod 230 is connected between the lifting rod 210 and the bolt pressing rod, and the connecting rod 230 can be driven to pull the bolt pressing rod 240 through the up-and-down swing of the lifting rod 210; the latch pressing rod 240 is fixed on the car door 400 through a latch pressing rod fixing rotating shaft 242, the latch pressing rod lifting rotating shaft 241 is connected with the connecting rod 230, when the connecting rod 230 moves up and down in door opening and closing, the latch pressing rod 240 is also driven to rotate around the latch pressing rod fixing rotating shaft 242, and therefore the latch pressing rod pressing head 243 is controlled to move up and down, as shown in fig. 2 and 4, when the door closing latch pressing rod pressing head 243 moves down, the latch 540 is pushed to move down to be inserted below a sill groove and compress the reset spring 530, when the door opening lifting rod 210 swings down, the latch pressing rod pressing head 243 moves up, and the latch is reset to an initial position under the elastic force of the reset spring 530; four points of the lifting rod rotating shaft 211, the lifting rod roller 212, the pressing rod lifting rotating shaft 241 and the bolt pressing rod fixing rotating shaft 242 are arranged in a parallelogram shape.

Specifically, in the embodiment, the height stroke of the guide groove 220 is adjustable, and the depth of the plug pin inserted into the sill groove can be adjusted by adjusting the height of the guide groove 220.

Specifically, in this embodiment, the return spring 530 is one of a torsion spring, a compression spring, a tension spring, and a spring plate.

Specifically, in this embodiment, the connecting rod 230 is one of a common rigid connecting rod, a steel wire rope, and a lifting rope with a guide tube.

Specifically, in the embodiment of the present invention, the invention provides a method for modifying an elevator car door strength through mark, which includes the following steps:

(1) drilling holes at the bottom of the sill groove of the old ladder, or replacing a new sill which is connected with the old ladder in the same way and is drilled with holes, wherein the drilled holes are bolt holes, and the holes are long holes.

(2) The old elevator car door is detached from the old elevator on site, the pin device is installed on the detached car door, and the old elevator car door can be installed through drilling or welding or installed by replacing a brand new car door.

(3) And a bolt lifting device 200 is arranged in the door machine (the new door machine can be arranged before delivery and then delivered on site), and is connected with a bolt compression bar through a connecting rod 230, and the bolt action is controlled through the bolt compression bar.

(4) When the door is closed, the latch pin arranged at the lower part of the car door is inserted into the sill groove and has a certain distance with the bottom surface of the sill groove, at the moment, the reset spring 530 is in an extension state, the depth of the latch pin inserted into the sill groove is minimum, when the door is closed to a certain degree, as shown in a position shown in figure 5, the door distance reaches L1, the lifting rod roller 212 starts to touch the guide groove 220, as shown in figure 7, when the door is continuously closed, as the lifting rod 210 roller is subjected to the force of the guide groove 220, the lifting rod 210 swings upwards, so that the connecting rod 230 is pulled to move upwards, the end of the latch pin pressing rod pressure head 243 swings downwards to push the latch pin, so that the latch pin is inserted downwards into the sill groove hole, when the lifting rod roller 212 moves to the highest surface of the guide groove 220 along the guide groove 220, as shown in figure 3, the depth of the latch pin inserted downwards into the sill groove hole reaches the maximum, at the moment, the door distance reaches L2, in order to ensure that the depth of the lock-opening stroke range inserted into the sill slot hole is the maximum value, L2 is set to be larger than the unlocking stroke. Because the distance between the doors reaches L2 until the doors are completely closed, the lifting rod roller 212 does not move up and down, so the depth of the bolt extending into the bottom of the sill groove is not changed any more, as shown in figure 2, because the bolt extends into the bottom of the sill groove to a sufficient depth, the car door can not fall off the sill groove when being impacted by the car, thereby protecting people in the car and meeting the requirements of new national standards.

(5) When the door is opened, the lifting rod roller 212 moves along the guide groove 220 along with the operation of the door hanging plate 110, when the door interval reaches L2, the position of the lifting rod roller 212 is as shown in FIG. 3, the lifting rod roller 212 moves to the downhill point of the guide groove 220, when the door is opened continuously, the connecting rod 230 moves downwards due to the downward swing of the lifting rod, the end of the bolt pressing rod pressing head 243 swings upwards to cancel the thrust on the bolt, the bolt moves upwards under the action of the force of the reset spring 530 and is drawn out of the sill groove hole, when the door interval reaches L1, the depth of the bolt inserted into the sill groove is recovered to the minimum value, the position of the bolt is as shown in FIG. 6, at the moment, the lifting rod 210 also reaches the limit position of swinging downwards, the car door is opened continuously, the bolt cannot interfere with the sill groove, and the door is opened continuously and normally.

In the above embodiment, as shown in fig. 8, a pull rope structure may be used instead of the link pushing structure to realize the latch pulling control.

The transformation method and the transformation device for the elevator car door strength penetration mark can be used for preventing the car door from falling off the floor trough when being impacted, well meets the requirement of the car door strength penetration mark, and are simple in structure and low in cost. The method is characterized in that the standard of car door strength is formed by increasing the groove depth of the sill in the current stage, the method is not suitable for the reconstruction of an old elevator with a car frame, and under the premise of not replacing the specification of the sill, the old sill is drilled or the sill which is drilled in the same specification is replaced, so that the standard requirement of car door strength is met when the car bottom of the old elevator is not changed, the cost of reconstructing the standard of car door strength is reduced, and the time for reconstructing the car door is shortened.

The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the embodiments are only used to help understanding the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the present description should not be construed as a limitation to the present invention.