阅读说明：本技术 一种自动排出底坑积水的电梯保护系统 (Elevator protection system capable of automatically discharging accumulated water in pit ) 是由 郑世云 唐川东 王成华 伍克林 李彬 于 2021-10-27 设计创作，主要内容包括：本发明公开了一种自动排出底坑积水的电梯保护系统,包括排水装置、浮球装置和触发开关,排水装置位于电梯底坑的底部；浮球装置包括浮球和旋转杆,触发开关与浮球装置位于电梯底坑的同一侧壁,该触发开关与排水装置串联,当电梯底坑内积水达到某一高度时,浮球装置转动并能够触发所述触发开关,并打开或关闭排水装置。本发明在电梯底坑积水达到一定水位时能够自动进行排水,并且,在水位下降后能够使排水装置停止排水,避免排水装置空负荷运转而烧坏电机；同时,还能对电梯底坑积水进行预警,以便及时通知电梯管理方和维修方,使电梯能够及时得到维修处理和恢复,确保电梯运行的安全性,也减少电梯零部件的损坏。(The invention discloses an elevator protection system capable of automatically discharging accumulated water in a pit, which comprises a drainage device, a floating ball device and a trigger switch, wherein the drainage device is positioned at the bottom of the elevator pit; the floating ball device comprises a floating ball and a rotary rod, the trigger switch and the floating ball device are positioned on the same side wall of the elevator pit, the trigger switch is connected with the drainage device in series, when accumulated water in the elevator pit reaches a certain height, the floating ball device rotates and can trigger the trigger switch, and the drainage device is turned on or turned off. According to the invention, when the accumulated water in the pit of the elevator reaches a certain water level, the water can be automatically drained, and the drainage device can stop draining water after the water level is reduced, so that the phenomenon that the motor is burnt out due to the empty load operation of the drainage device is avoided; meanwhile, the system can also perform early warning on the accumulated water in the pit of the elevator so as to inform an elevator manager and a maintenance party in time, so that the elevator can be maintained, processed and recovered in time, the running safety of the elevator is ensured, and the damage to elevator parts is reduced.)

1. An elevator protection system capable of automatically discharging accumulated water in a pit comprises an elevator pit (1) and is characterized in that a drainage device, a floating ball device and a trigger switch are arranged in the elevator pit (1); the drainage device is positioned at the bottom of the elevator pit (1); the floating ball device comprises a floating ball (2) and a rotary rod (3), the rotary rod is provided with two support arms (4), the joint of the two support arms is rotatably connected with the side wall of the pit of the elevator through a rotating shaft (5), one support arm is fixedly connected with the floating ball, and the end part of the other support arm forms a trigger end; the trigger switch and the floating ball device are positioned on the same side wall of the elevator pit and are arranged above a rotating shaft of the floating ball device, the trigger switch is connected with the drainage device in series, when accumulated water in the elevator pit reaches a certain height, the floating ball device rotates, the trigger end of the floating ball device can trigger the trigger switch, and the drainage device is turned on or turned off.

2. The elevator protection system for automatically draining accumulated water in a pit according to claim 1, wherein the drainage device comprises a water pump (6) and a drainage pipe (7), a water accumulation pit (8) is further arranged in the elevator pit, the water pump is installed in the water accumulation pit, and the water outlet end of the water pump is communicated with the outside through the drainage pipe.

3. The elevator protection system for automatically draining pit ponding of claim 2, further comprising a scram switch (9) located on the same sidewall of the elevator pit as the trigger switch and connected to the elevator control system; the emergency stop switch and the trigger switch are positioned on the same circumference with the rotating shaft of the floating ball device as the circle center and behind the rotating track of the trigger end in the rising process of the floating ball, and when accumulated water in the elevator pit reaches a certain height, the trigger end of the floating ball device can trigger the emergency stop switch and the trigger switch simultaneously.

4. The elevator protection system for automatically discharging accumulated water in a pit according to claim 3, wherein the trigger end of the support arm is provided with an arc-shaped trigger lever (10) which is positioned on the same circumference with the rotating shaft of the floating ball device as the center of a circle and is positioned on the inner side of the circle where the emergency stop switch and the trigger switch are positioned, and when the accumulated water in the elevator pit reaches a certain height, the trigger lever can trigger the emergency stop switch and the trigger switch simultaneously.

5. Elevator protection system for automatically draining pit ponding according to claim 4, characterized in that the trigger switch comprises a start switch (11) and a stop switch (12), wherein the start switch is located between the stop switch and the emergency stop switch and close to the emergency stop switch.

6. The elevator protection system for automatically draining accumulated water in a pit according to claim 5, wherein one end of the trigger lever is connected with the rotating lever, and the other end of the trigger lever is bent to form a pressure lever (13); in the initial state, under the action of the gravity of the floating ball and the support arm connected with the floating ball, the pressure rod presses the stop switch, the trigger rod and the start switch are in a separated state, and meanwhile, the floating ball is positioned between the vertical plane passing through the rotating shaft and the stop switch.

7. The elevator protection system for automatically draining accumulated water in a pit according to claim 6, wherein a limiting plate (14) is further disposed on one side of the floating ball device, the limiting plate is located on the inner side of the circle where the emergency stop switch and the trigger switch are located, and is located behind the rotation track of the trigger end in the ascending process of the floating ball, and when the rotating rod is engaged with the limiting plate, the trigger end can keep simultaneously triggering the start switch and the emergency stop switch.

Technical Field

The invention relates to the technical field of treatment of accumulated water in a pit of an elevator, in particular to an elevator protection system capable of automatically discharging accumulated water in the pit.

Background

At present, elevators have been widely used in various buildings such as residential houses and shopping malls. Because pit water-proof effects is poor in the building, perhaps the water pipe breaks, the reason such as torrential rain rises to rise water leads to intaking in the elevator well, makes the elevator pit appear serious ponding condition, and this phenomenon is more common in southern city, has become the technical problem that the elevator trade needs a lot of solution. In the prior art, the disposal method of the accumulated water in the elevator pit is usually that a user or a property notifies an elevator maintenance personnel, when the accumulated water is serious, a door of the elevator floor is opened, and a water pump is temporarily installed to pump water. The treatment mode is time-consuming and labor-consuming, and before accumulated water is treated, a large number of elevator parts are damaged due to the fact that the elevator parts are soaked in the accumulated water, so that economic loss is caused, and potential safety hazards are brought to elevator operation; moreover, due to the fact that the accumulated water is turbid, safety accidents are easy to happen when maintenance personnel perform maintenance.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide an elevator protection system capable of automatically discharging accumulated water in a pit, so as to solve the problem that the accumulated water cannot be timely discharged in the prior art, so that elevator parts are damaged.

In order to solve the technical problems, the invention adopts the following technical scheme:

an elevator protection system capable of automatically discharging accumulated water in a pit comprises an elevator pit, wherein a drainage device, a floating ball device and a trigger switch are arranged in the elevator pit; the drainage device is positioned at the bottom of the elevator pit; the floating ball device comprises a floating ball and a rotary rod, the rotary rod is provided with two support arms, the joint of the two support arms is rotatably connected with the side wall of the pit of the elevator through a rotary shaft, one support arm is fixedly connected with the floating ball, and the end part of the other support arm forms a trigger end; the trigger switch and the floating ball device are positioned on the same side wall of the elevator pit and are arranged above a rotating shaft of the floating ball device, the trigger switch is connected with the drainage device in series, when accumulated water in the elevator pit reaches a certain height, the floating ball device rotates, the trigger end of the floating ball device can trigger the trigger switch, and the drainage device is turned on or turned off.

Preferably, the drainage device comprises a water pump and a drainage pipe, a water accumulation pit is further arranged in the elevator pit, the water pump is installed in the water accumulation pit, and the water outlet end of the water pump is communicated with the outside through the drainage pipe.

Preferably, the emergency stop system further comprises an emergency stop switch, wherein the emergency stop switch and the trigger switch are positioned on the same side wall of the elevator pit and are connected with an elevator control system; the emergency stop switch and the trigger switch are positioned on the same circumference with the rotating shaft of the floating ball device as the circle center and behind the rotating track of the trigger end in the rising process of the floating ball, and when accumulated water in the elevator pit reaches a certain height, the trigger end of the floating ball device can trigger the emergency stop switch and the trigger switch simultaneously.

Preferably, the trigger end of support arm is equipped with an arc trigger lever, and this trigger lever is located and uses the pivot of floater device as same circumference of centre of a circle, and is located the inboard of scram switch and trigger switch place circle, and when elevator pit internal ponding reached a certain height, this trigger lever can trigger scram switch and trigger switch simultaneously.

Preferably, the trigger switch comprises a start switch and a stop switch, wherein the start switch is located between the stop switch and the emergency stop switch and close to the emergency stop switch; after the start switch is started, the start switch is always in a conducting state before the stop switch is not triggered.

Preferably, one end of the trigger rod is connected with the rotating rod, and the other end of the trigger rod is bent to form a pressure rod; in the initial state, under the action of the gravity of the floating ball and the support arm connected with the floating ball, the pressure rod presses the stop switch, the trigger rod and the start switch are in a separated state, and meanwhile, the floating ball is positioned between the vertical plane passing through the rotating shaft and the stop switch.

Preferably, a limiting plate is further disposed on one side of the floating ball device, the limiting plate is located on the inner side of a circle where the emergency stop switch and the trigger switch are located, and is located behind a rotating track of the trigger end in the rising process of the floating ball, and when the rotating rod is attached to the limiting plate, the trigger rod can keep simultaneously triggering the opening switch and the emergency stop switch.

Compared with the prior art, the invention has the following beneficial effects:

according to the invention, the floating ball device is utilized, so that the water can be automatically drained when the accumulated water in the pit of the elevator reaches a certain water level, and the drainage device can stop draining water after the water level is reduced, thereby avoiding the motor burnout caused by the empty load operation of the drainage device; the elevator control system can also early warn the accumulated water in the elevator pit, when the accumulated water in the elevator pit reaches a high water level line, the floating ball device can trigger an emergency stop switch, the elevator control system starts an emergency stop function of the elevator, the elevator car stops at a non-bottom designated floor and opens the car door, after people in the elevator car leave, the elevator car door is closed and stops running, and meanwhile, a fault signal of the accumulated water in the elevator pit is timely sent to the elevator control system so as to timely inform an elevator management party and a maintenance party, so that the elevator can be timely maintained, treated and recovered, the running safety of the elevator is ensured, and the damage of elevator parts is also reduced.

Drawings

Fig. 1 is a schematic structural view of an elevator protection system for automatically draining pit ponding water according to the present invention when the ponding water drops to a low waterline.

Fig. 2 is a schematic structural view of the elevator protection system for automatically discharging accumulated water in a pit when the accumulated water rises to a middle water level line according to the invention.

Fig. 3 is a schematic structural diagram of the elevator protection system for automatically discharging the accumulated water in the pit when the accumulated water rises to a high water level line according to the invention.

Fig. 4 is a schematic structural view of the floating ball device.

FIG. 5 is a flow chart of a method for using the protection device for automatically treating accumulated water in the pit according to the invention.

In the figure: the elevator control system comprises an elevator pit 1, a floating ball 2, a rotating rod 3, a support arm 4, a rotating shaft 5, a water pump 6, a drain pipe 7, a water accumulation pit 8, an emergency stop switch 9, a trigger rod 10, a starting switch 11, a stop switch 12, a pressure rod 13 and a limiting plate 14.

Detailed Description

The invention will be further explained with reference to the drawings and the embodiments.

Elevator protection system capable of automatically discharging accumulated water in pit

Referring to fig. 1-4, the elevator protection system capable of automatically discharging accumulated water in a pit comprises an elevator pit 1, wherein a drainage device, a floating ball device and a trigger switch are arranged in the elevator pit 1; the drainage device is positioned at the bottom of the elevator pit 1; the floating ball device comprises a floating ball 2 and a rotary rod 3, the rotary rod is provided with two support arms 4, the joint of the two support arms is rotatably connected with the side wall of the pit of the elevator through a rotating shaft 5, one support arm is fixedly connected with the floating ball, and the end part of the other support arm forms a trigger end; the trigger switch and the floating ball device are positioned on the same side wall of the elevator pit and are arranged above a rotating shaft of the floating ball device, the trigger switch is connected with the drainage device in series, when accumulated water in the elevator pit reaches a certain height, the floating ball device rotates, the trigger end of the floating ball device can trigger the trigger switch, and the drainage device is turned on or turned off. According to the elevator assembly drainage device, the floating ball device can be started to drain accumulated water in the elevator pit according to different heights of the accumulated water in the elevator pit, so that the accumulated water is prevented from soaking elevator assemblies in the elevator pit to damage the assemblies, normal and safe operation of the elevator is ensured, and meanwhile, after the accumulated water in the elevator pit is drained, the drainage device can be closed in time, and the motor is prevented from being burnt out due to empty load operation of the drainage device.

When the drainage device is implemented specifically, the drainage device comprises a water pump 6 and a drainage pipe 7, a water accumulation pit 8 is further arranged in the elevator pit, the water pump is installed in the water accumulation pit, and the water outlet end of the water pump is communicated with the outside through the drainage pipe. The elevator control system also comprises an emergency stop switch 9, wherein the emergency stop switch and the trigger switch are positioned on the same side wall of the elevator pit and are connected with the elevator control system. This scram switch and trigger switch are located the same circumference that uses the pivot of floater device as the centre of a circle to be located the floater and rise the rear of in-process trigger end rotation trajectory, when ponding reaches a certain height in the elevator pit, the trigger end of floater device can trigger scram switch and trigger switch simultaneously, through scram switch and elevator control system, stop elevator car at a certain floor of non-bottom, and open the car door, personnel in the elevator car withdraw in time, the elevator is still moving when avoiding appearing ponding in the elevator pit, ensure the security of elevator. When in actual use, the trigger end of support arm is equipped with an arc trigger lever 10, and this trigger lever is located and uses the pivot of floater device as the same circumference of centre of a circle, and is located the inboard of scram switch and trigger switch place circle, and when ponding reached a certain height in the elevator pit, this trigger lever can trigger scram switch and trigger switch simultaneously. The trigger switch comprises a start switch 11 and a stop switch 12, wherein the start switch is positioned between the stop switch and the emergency stop switch and close to the emergency stop switch. After the start switch is started, the start switch is always in a conducting state before the stop switch is not triggered. Ponding appears in elevator pit, and ponding is when constantly increasing, the floater of floater device constantly rises along with ponding, and drive the support arm anticlockwise rotation that has the trigger end, make the trigger end on the support arm can trigger starting switch, water pump among the drainage device begins to continuously take out the ponding in the elevator pit ceaselessly, if ponding reduces gradually, the floater of floater device descends along with ponding, make the trigger end on the support arm leave starting switch, starting switch is in the on-state always this moment, drainage device is still continuing the drainage, when the trigger end on the support arm triggers stop switch, drainage device stop motion. If the drainage speed is less than the speed of water flow entering the elevator pit, even if in a continuous drainage state, the accumulated water in the elevator pit is still rising continuously, at the moment, the floating ball continues to drive the support arm with the trigger end to rotate, so that the trigger end of the support arm triggers the emergency stop switch, the elevator control system controls the elevator car to stop at a specified floor of a non-bottom layer and open the car door, after the personnel in the elevator car leave safely, the elevator car door is closed and stops running, meanwhile, a fault signal of the accumulated water in the elevator pit is timely sent to the elevator control system, so that an elevator manager and a maintenance party are timely informed, the elevator can be timely maintained and recovered, the running safety of the elevator is ensured, and the damage of elevator parts is also reduced. One end of the trigger rod is connected with the rotating shaft, and the other end of the trigger rod is bent to form a pressure rod 13. The trigger lever is the arc, and the support arm is at the rotation in-process, and the trigger lever can trigger starting switch and starting switch, and the depression bar of trigger lever can trigger stop switch. During initial state, under the effect of the gravity of floater and the support arm that links to each other, this depression bar pressure is on stop switch, and trigger lever and start switch are in the separation mode, and simultaneously, the floater is located between the vertical plane of pivot and the stop switch, and rivers flow in the elevator pit, and when the floater constantly riseed along with the ponding water level, the support arm of rotary rod can carry out anticlockwise rotation. When in actual use, still be equipped with a limiting plate 14 in one side of floater device, the limiting plate is located the pivot top to be located emergency stop switch and the inboard of trigger switch place circle, and be located the ascending in-process of floater trigger end rotation orbit's rear, when the trigger bar simultaneously with open switch and emergency stop switch contact back, the rotary rod can laminate with this limiting plate, avoids the trigger bar rotatory excessive trigger bar that leads to and opens switch and emergency stop switch and breaks away from.

Second, use method of elevator protection system for automatically treating accumulated water in pit

The elevator protection system for automatically discharging accumulated water in the pit, which is disclosed by the invention, specifically comprises the following steps of:

according to the actual arrangement condition or the design requirement of the elevator components in the elevator pit, referring to fig. 1-5, a low water level line, a medium water level line and a high water level line are set. In the initial stage, the floating ball is positioned between the vertical plane of the rotating shaft and the stop switch.

When accumulated water in the elevator pit rises, the floating ball rises along with the accumulated water, so that the rotating rod support arm starts to rotate anticlockwise; when the accumulated water in the elevator pit reaches the middle water level line, the trigger end of the rotating rod rotates to the starting switch and triggers the starting switch, so that the water pump starts pumping water. If the accumulated water is reduced to a low water level line, the floating ball is reduced, the trigger end of the rotating rod rotates to the stop switch and triggers the stop switch, and the water pump stops pumping water. If ponding continues to rise to the high water level line, the water pump keeps continuing to draw water, and the floater rises, and the trigger end of rotary rod rotates and can trigger scram switch and starting switch simultaneously, and the urgent berth function of elevator among the elevator control system starts, and elevator car stops at appointed floor and opens elevator car door, treats that personnel in the elevator car leave safely, closes elevator car door and stop operation, sends the fault signal of elevator pit ponding for elevator control system simultaneously.

In the concrete implementation, the low waterline indicates that accumulated water in a pit of the elevator is about to be drained; the middle water level line indicates that accumulated water in the elevator pit reaches a certain water demand and needs to be discharged; the high water level indicates that the accumulated water in the elevator pit is serious, and the elevator components in the pit can be endangered by continuously rising the water level and the safe use of the elevator can also be influenced. Meanwhile, a liquid level instrument can be installed in the elevator pit and connected with an elevator control system, the height of accumulated water in the elevator pit can be detected and transmitted to the elevator control system, and therefore the accumulated water is displayed on a display screen.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and those skilled in the art should understand that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all that should be covered by the claims of the present invention.