Elevator pit water inlet monitoring device
By installing monitoring devices for lighting and triggering components in the bottom pit of the elevator shaft, the problem of water in the bottom pit cannot be discovered in time is solved, ensuring safe evacuation of the elevator and equipment protection.
Patent Information
- Application Number
- CN202422384144.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-27
AI Technical Summary
The existing technology cannot detect water in the elevator pit in a timely manner, resulting in safety accidents and equipment corrosion.
The monitoring device consisting of light components and trigger components is adopted. The light components emit light into the bottom pit of the elevator shaft, and the reflected light triggers the power-on circuit. The control module controls the elevator door to open, and the alarm module issues an alarm to ensure safe evacuation.
It realizes timely detection and automatic evacuation of water inlets at the bottom of the elevator, avoids safety accidents and reduces the risk of equipment corrosion.
Smart Images
Figure CN223047015U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of elevator operation safety, and more specifically, to a monitoring device for water ingress in an elevator pit. Background Art
[0002] There are electrical and mechanical components such as switches, buttons, sensors, and tracks in the elevator pit. Since the elevator pit is usually set below the ground level of the building entrance and exit, due to factors such as meteorology, cleaning, and fire protection, it is easy for water to enter the elevator pit. Once water enters the elevator pit, it is extremely likely to cause safety accidents such as electrical short circuits and electric shock to passengers in the elevator, and lead to the deterioration of the hoistway environment, and the electrical and mechanical components of the elevator are corroded or fail.
[0003] In the prior art, manual inspection or additional video monitoring is usually adopted during maintenance activities to detect and handle water ingress in the pit, but this monitoring method cannot solve the problem that water ingress in the elevator pit is detected in time and the normal service of the elevator is automatically aborted. Summary of the Utility Model
[0004] Based on this, in order to solve the problem that the prior art cannot detect water ingress in the elevator pit in time, the utility model provides a monitoring device for water ingress in an elevator pit, and its specific technical solution is as follows:
[0005] A monitoring device for water ingress in an elevator pit includes a lighting component, a triggering component, and an alarm module. A monitoring space is formed between the elevator car and the elevator hoistway. A control module is installed on the elevator car. The lighting component is installed in the monitoring space and is used to emit light towards the pit of the elevator hoistway. The triggering component is arranged on the elevator car. The triggering component is used to receive the light reflected from the accumulated water in the pit of the elevator hoistway and form a power-on circuit. The power-on circuit is electrically connected to the control module and the alarm module respectively.
[0006] In the above-mentioned monitoring device for water ingress in an elevator pit, by setting a lighting component and a triggering component, the incident light emitted by the lighting component enters the accumulated water in the pit of the elevator hoistway to form reflected light. When the reflected light can be formed within a predetermined distance range, the power-on circuit in the triggering component can be activated. By setting a control module, when the power-on circuit is activated, the control module controls the elevator door to remain open continuously, facilitating the evacuation of the personnel in the elevator car. By setting an alarm module, when the power-on circuit is activated, the alarm module continuously emits an alarm signal to guide the staff to handle the water accumulation problem in time and ensure the safety of the elevator and the personnel in the elevator car.
[0007] Further, the lighting component is a spotlight.
[0008] Further, the triggering component is a photoresistor switch.
[0009] Further, the lighting component is fixedly arranged at the bottom of the elevator car, and the emitting end of the lighting component faces the bottom pit of the elevator shaft.
[0010] Further, the lighting component is fixedly arranged on the side wall of the elevator shaft.
[0011] Further, the light emitted by the lighting component is incident light, and the light received by the triggering component is reflected light.
[0012] Further, the receiving end of the triggering component is perpendicular to the normal component of the reflected light.
[0013] Further, the starting illuminance of the photoresistor switch is ≥ 5 lx.
[0014] Further, an occlusion structure is arranged on the emitting end of the lighting component.
[0015] Further, the triggering component is fixed at the bottom of the elevator car, and the number of the lighting components is multiple. The multiple lighting components are symmetrically arranged on both sides of the triggering component respectively. Description of the Drawings
[0016] Figure 1 is a schematic structural diagram of the elevator pit water inlet monitoring device according to the first embodiment of the present invention.
[0017] Figure 2 is a schematic structural diagram of the elevator pit water inlet monitoring device according to the second embodiment of the present invention.
[0018] Description of the Reference Numerals:
[0019] 1. Elevator car; 11. Control module; 2. Elevator shaft; 3. Lighting component; 4. Triggering component; 5. Alarm module. Detailed Embodiments
[0020] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with its embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and do not limit the protection scope of the present invention.
[0021] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only embodiments.
[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this utility model belongs. The terms used in the specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.
[0023] In this utility model, the "first" and "second" do not represent specific quantities and orders, but are only used for name distinction.
[0024] As Figure 1 and Figure 2 shown, a monitoring device for water ingress in the elevator pit in an embodiment of this utility model includes a lighting component 3, a triggering component 4, and an alarm module 5. A monitoring space is formed between the elevator car 1 and the elevator hoistway 2. A control module 11 is installed on the elevator car 1. The lighting component 3 is installed in the monitoring space and is used to emit light towards the pit of the elevator hoistway 2. The triggering component 4 is arranged on the elevator car 1. The triggering component 4 is used to receive the light reflected from the accumulated water in the pit of the elevator hoistway and form a power-on circuit. The power-on circuit is electrically connected to the control module 11 and the alarm module 5 respectively.
[0025] For the above-mentioned monitoring device for water ingress in the elevator pit, by providing the lighting component 3 and the triggering component 4, the incident light emitted by the lighting component 3 enters the accumulated water in the pit of the elevator hoistway 2 to form reflected light. When the reflected light can be formed within a predetermined distance range, the power-on circuit in the triggering component 4 can be activated; by providing the control module 11, when the power-on circuit is activated, the control module 11 controls the elevator door to remain open continuously, facilitating the evacuation of the personnel in the elevator car 1; by providing the alarm module 5, when the power-on circuit is activated, the alarm module 5 continuously emits an alarm signal to guide the staff to handle the water accumulation problem in time and ensure the safety of the elevator equipment and the personnel in the elevator car 1.
[0026] Specifically, both the control module 11 and the alarm module 5 are prior arts and will not be elaborated here too much.
[0027] In one of the embodiments, the lighting component 3 includes but is not limited to a lamp for irradiating light, and it is preferably a spot lamp.
[0028] In one of the embodiments, the triggering component 4 is preferably a photoresistor switch. The photoresistor switch is a prior art with a simple technical principle, low device cost, and strong practicability, which is meaningful for monitoring water ingress in the pit of the elevator hoistway 2 and ensuring elevator safety.
[0029] AsFigure 1 As shown, in the first embodiment, the lighting component 3 is fixedly arranged at the bottom of the elevator car 1, and the emitting end of the lighting component 3 faces the bottom of the elevator shaft 2.
[0030] As Figure 2 shown, in the second embodiment, the lighting component 3 is fixedly arranged on the side wall of the elevator shaft 2.
[0031] The different installation positions of the lighting component 3 in the above two embodiments make the layout more flexible. It can be configured during the manufacture of new elevators, is also suitable for retrofitting old elevators, and can also be used on-site as an independent monitoring mechanism, having the beneficial effects of monitoring and warning against water ingress in the bottom pit of the elevator shaft 2 and avoiding elevator failures.
[0032] In one of the embodiments, the light emitted by the lighting component 3 is the incident light, and the light received by the triggering component 4 is the reflected light.
[0033] In one of the embodiments, the receiving end of the triggering component 4 is perpendicular to the normal component of the reflected light. A photoresistor switch is arranged at a predetermined position for receiving the reflected light. When the illumination effect generated by the reflected light conducts the photocurrent, the photoresistor switch is triggered.
[0034] Specifically, the receiving end of the triggering component 4 is a flat lighting surface for absorbing photons and generating the photoelectric effect.
[0035] In one of the embodiments, the starting illuminance of the photoresistor switch is ≥5 lx.
[0036] In the second embodiment, an occlusion structure is arranged on the emitting end of the lighting component 3. To prevent the lighting component 3 from directly illuminating the triggering component 4 and causing false triggering.
[0037] As Figure 1 and Figure 2 shown, in one of the embodiments, the triggering component 4 is fixed to the bottom of the elevator car 1, and the number of lighting components 3 is multiple. The multiple lighting components 3 are symmetrically arranged on both sides of the triggering component 4 respectively. To prevent the triggering component 4 from not being triggered when an individual lighting component 3 fails, improve the fault tolerance rate of the monitoring device, and enable the monitoring device to start an alarm in time when water enters the bottom pit of the elevator shaft 2.
[0038] Working principle:
[0039] After the incident light emitted by the lighting component 3 enters the accumulated water in the elevator hoistway 2 (the accumulated water has a light-blocking effect, and when the incident light of the lighting component 3 enters the accumulated water, a reflection phenomenon will occur), reflected light will be formed. When the accumulated water is deep enough and the reflected light can be formed within a predetermined distance range, the energized circuit in the trigger component 4 can be activated. Before that, by adjusting the resistance value of the trigger component 4, when it is at a predetermined position such as the base station leveling position, the photoelectric effect generated by photons on the reflected light reaches the threshold for triggering the trigger component 4. Therefore, when the energized circuit is activated, the normal service of the elevator is interrupted, and the elevator car 1 can stop at the base station leveling position, thus facilitating the evacuation of the personnel in the elevator car 1. In addition, when the energized circuit is activated, the control module 11 controls the elevator door to remain open continuously, facilitating the entry and exit of the personnel in the elevator car 1, and the alarm module 5 continuously emits an alarm signal to guide the staff to deal with the accumulated water problem in time and ensure the safety of the elevator equipment and the personnel in the elevator car 1. When the staff clears the accumulated water until the reflected light deviates from the predetermined distance range, the energized circuit is closed, and the elevator can resume normal service.
[0040] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.
[0041] The above-described embodiments only represent several implementation manners of the present invention, and the description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.
Claims
1. An elevator pit water ingress monitoring device, characterized in that: The invention comprises an illumination component, a trigger component and an alarm module. A monitoring space is formed between the elevator car and the elevator shaft. A control module is installed on the elevator car. The illumination component is installed in the monitoring space and is used to emit light to the pit of the elevator shaft. The trigger component is installed on the elevator car. The trigger component is used to receive light reflected from the accumulated water in the pit of the elevator shaft and form an energized circuit. The energized circuit is electrically connected to the control module and the alarm module respectively.
2. The elevator pit water ingress monitoring device according to claim 1, characterized in that: The lighting component is a spotlight.
3. The elevator pit water ingress monitoring device according to claim 1, characterized in that: The trigger component is a photoresistor switch.
4. The elevator pit water ingress monitoring device according to claim 1, characterized in that: The illumination component is fixedly arranged at the bottom of the elevator car, and the emitting end of the illumination component faces the elevator shaft pit.
5. The elevator pit water ingress monitoring device according to claim 1, characterized in that: The lighting component is fixedly arranged on the side wall of the elevator shaft.
6. The elevator pit water ingress monitoring device according to claim 1, characterized in that: The light emitted by the illumination component is the incident light, and the light received by the trigger component is the reflected light.
7. The elevator pit water ingress monitoring device according to claim 6, characterized in that: The receiving end of the trigger component is perpendicular to the normal component of the reflected light.
8. The elevator pit water ingress monitoring device according to claim 3, characterized in that: The starting illumination of the photoresistor switch is ≥5lx.
9. The elevator pit water ingress monitoring device according to claim 5, characterized in that: A shielding structure is arranged on the emitting end of the illumination component.
10. The elevator pit water ingress monitoring device according to claim 1, characterized in that: The trigger component is fixed at the bottom of the elevator car, and there are multiple illumination components, which are symmetrically arranged on both sides of the trigger component.